lukas-hetzenecker/docker-gitlab

Dockerized GitLab

sameersbn/gitlab:13.0.6

• Introduction
  • Changelog
• Contributing
• Team
• Issues
• Announcements
• Prerequisites
• Installation
• Quick Start
• Configuration
  • Data Store
  • Database
    • PostgreSQL (Recommended)
      • External PostgreSQL Server
      • Linking to PostgreSQL Container
  • Redis
    • Internal Redis Server
    • External Redis Server
    • Linking to Redis Container
  • Mail
    • Reply by email
  • SSL
    • Generation of a Self Signed Certificate
    • Strengthening the server security
    • Installation of the SSL Certificates
    • Enabling HTTPS support
    • Configuring HSTS
    • Using HTTPS with a load balancer
    • Establishing trust with your server
    • Installing Trusted SSL Server Certificates
  • Deploy to a subdirectory (relative url root)
  • OmniAuth Integration
    • CAS3
    • Authentiq
    • Google
    • Twitter
    • GitHub
    • GitLab
    • BitBucket
    • SAML
    • Crowd
    • Microsoft Azure
    • Generic OAuth2
  • Gitlab Pages
  • External Issue Trackers
  • Host UID / GID Mapping
  • Piwik
  • Exposing ssh port in dockerized gitlab-ce
  • Available Configuration Parameters
• Maintenance
  • Creating Backups
  • Restoring Backups
  • Automated Backups
  • Amazon Web Services (AWS) Remote Backups
  • Google Cloud Storage (GCS) Remote Backups
  • Rake Tasks
  • Import Repositories
  • Upgrading
  • Shell Access
• Monitoring
  • Health Check
• Container Registry
• Deploy in Docker Swarm mode, with HTTPS handled by Traefik proxy and Docker Registry
• References

Introduction

Dockerfile to build a GitLab image for the Docker opensource container platform.

GitLab CE is set up in the Docker image using the install from source method as documented in the the official GitLab documentation.

For other methods to install GitLab please refer to the Official GitLab Installation Guide which includes a GitLab image for Docker.

Contributing

If you find this image useful here's how you can help:

• Send a Pull Request with your awesome new features and bug fixes
• Be a part of the community and help resolve Issues
• Support the development of this image with a donation

Team

• Niclas Mietz (solidnerd)
• Sameer Naik (sameersbn)

See Contributors for the complete list developers that have contributed to this project.

Issues

Docker is a relatively new project and is active being developed and tested by a thriving community of developers and testers and every release of docker features many enhancements and bugfixes.

Given the nature of the development and release cycle it is very important that you have the latest version of docker installed because any issue that you encounter might have already been fixed with a newer docker release.

Install the most recent version of the Docker Engine for your platform using the official Docker releases, which can also be installed using:

wget -qO- https://get.docker.com/ | sh

Fedora and RHEL/CentOS users should try disabling selinux with setenforce 0 and check if resolves the issue. If it does than there is not much that I can help you with. You can either stick with selinux disabled (not recommended by redhat) or switch to using ubuntu.

You may also set DEBUG=true to enable debugging of the entrypoint script, which could help you pin point any configuration issues.

If using the latest docker version and/or disabling selinux does not fix the issue then please file a issue request on the issues page.

In your issue report please make sure you provide the following information:

• The host distribution and release version.
• Output of the docker version command
• Output of the docker info command
• The docker run command you used to run the image (mask out the sensitive bits).

Prerequisites

Your docker host needs to have 1GB or more of available RAM to run GitLab. Please refer to the GitLab hardware requirements documentation for additional information.

Installation

Automated builds of the image are available on Dockerhub and is the recommended method of installation.

docker pull sameersbn/gitlab:13.0.6

You can also pull the latest tag which is built from the repository HEAD

docker pull sameersbn/gitlab:latest

Alternatively you can build the image locally.

docker build -t sameersbn/gitlab github.com/sameersbn/docker-gitlab

Quick Start

The quickest way to get started is using docker-compose.

wget https://raw.githubusercontent.com/sameersbn/docker-gitlab/master/docker-compose.yml

Generate random strings that are at least 64 characters long for each of GITLAB_SECRETS_OTP_KEY_BASE, GITLAB_SECRETS_DB_KEY_BASE, and GITLAB_SECRETS_SECRET_KEY_BASE. These values are used for the following:

• GITLAB_SECRETS_OTP_KEY_BASE is used to encrypt 2FA secrets in the database. If you lose or rotate this secret, none of your users will be able to log in using 2FA.
• GITLAB_SECRETS_DB_KEY_BASE is used to encrypt CI secret variables, as well as import credentials, in the database. If you lose or rotate this secret, you will not be able to use existing CI secrets.
• GITLAB_SECRETS_SECRET_KEY_BASE is used for password reset links, and other 'standard' auth features. If you lose or rotate this secret, password reset tokens in emails will reset.

Tip: You can generate a random string using pwgen -Bsv1 64 and assign it as the value of GITLAB_SECRETS_DB_KEY_BASE.

Start GitLab using:

docker-compose up

Alternatively, you can manually launch the gitlab container and the supporting postgresql and redis containers by following this three step guide.

Step 1. Launch a postgresql container

docker run --name gitlab-postgresql -d \
    --env 'DB_NAME=gitlabhq_production' \
    --env 'DB_USER=gitlab' --env 'DB_PASS=password' \
    --env 'DB_EXTENSION=pg_trgm' \
    --volume /srv/docker/gitlab/postgresql:/var/lib/postgresql \
    sameersbn/postgresql:11-20200524

Step 2. Launch a redis container

docker run --name gitlab-redis -d \
    --volume /srv/docker/gitlab/redis:/var/lib/redis \
    sameersbn/redis:4.0.9-2

Step 3. Launch the gitlab container

docker run --name gitlab -d \
    --link gitlab-postgresql:postgresql --link gitlab-redis:redisio \
    --publish 10022:22 --publish 10080:80 \
    --env 'GITLAB_PORT=10080' --env 'GITLAB_SSH_PORT=10022' \
    --env 'GITLAB_SECRETS_DB_KEY_BASE=long-and-random-alpha-numeric-string' \
    --env 'GITLAB_SECRETS_SECRET_KEY_BASE=long-and-random-alpha-numeric-string' \
    --env 'GITLAB_SECRETS_OTP_KEY_BASE=long-and-random-alpha-numeric-string' \
    --volume /srv/docker/gitlab/gitlab:/home/git/data \
    sameersbn/gitlab:13.0.6

Please refer to Available Configuration Parameters to understand GITLAB_PORT and other configuration options

NOTE: Please allow a couple of minutes for the GitLab application to start.

Point your browser to http://localhost:10080 and set a password for the root user account.

You should now have the GitLab application up and ready for testing. If you want to use this image in production then please read on.

The rest of the document will use the docker command line. You can quite simply adapt your configuration into a docker-compose.yml file if you wish to do so.

Configuration

Data Store

GitLab is a code hosting software and as such you don't want to lose your code when the docker container is stopped/deleted. To avoid losing any data, you should mount a volume at,

• /home/git/data

Note that if you are using the docker-compose approach, this has already been done for you.

SELinux users are also required to change the security context of the mount point so that it plays nicely with selinux.

mkdir -p /srv/docker/gitlab/gitlab
sudo chcon -Rt svirt_sandbox_file_t /srv/docker/gitlab/gitlab

Volumes can be mounted in docker by specifying the -v option in the docker run command.

docker run --name gitlab -d \
    --volume /srv/docker/gitlab/gitlab:/home/git/data \
    sameersbn/gitlab:13.0.6

Database

GitLab uses a database backend to store its data. You can configure this image to use PostgreSQL.

Note: GitLab requieres PostgreSQL now. So use an older image < 12.1 or migrate to PostgresSQL

PostgreSQL

External PostgreSQL Server

The image also supports using an external PostgreSQL Server. This is also controlled via environment variables.

CREATE ROLE gitlab with LOGIN CREATEDB PASSWORD 'password';
CREATE DATABASE gitlabhq_production;
GRANT ALL PRIVILEGES ON DATABASE gitlabhq_production to gitlab;

Additionally since GitLab 8.6.0 the pg_trgm extension should also be loaded for the gitlabhq_production database.

We are now ready to start the GitLab application.

Assuming that the PostgreSQL server host is 192.168.1.100

docker run --name gitlab -d \
    --env 'DB_HOST=192.168.1.100' \
    --env 'DB_NAME=gitlabhq_production' \
    --env 'DB_USER=gitlab' --env 'DB_PASS=password' \
    --volume /srv/docker/gitlab/gitlab:/home/git/data \
    sameersbn/gitlab:13.0.6

Linking to PostgreSQL Container

You can link this image with a postgresql container for the database requirements. The alias of the postgresql server container should be set to postgresql while linking with the gitlab image.

If a postgresql container is linked, only the DB_HOST and DB_PORT settings are automatically retrieved using the linkage. You may still need to set other database connection parameters such as the DB_NAME, DB_USER, DB_PASS and so on.

To illustrate linking with a postgresql container, we will use the sameersbn/postgresql image. When using postgresql image in production you should mount a volume for the postgresql data store. Please refer the README of docker-postgresql for details.

First, lets pull the postgresql image from the docker index.

docker pull sameersbn/postgresql:11-20200524

For data persistence lets create a store for the postgresql and start the container.

SELinux users are also required to change the security context of the mount point so that it plays nicely with selinux.

mkdir -p /srv/docker/gitlab/postgresql
sudo chcon -Rt svirt_sandbox_file_t /srv/docker/gitlab/postgresql

The run command looks like this.

docker run --name gitlab-postgresql -d \
    --env 'DB_NAME=gitlabhq_production' \
    --env 'DB_USER=gitlab' --env 'DB_PASS=password' \
    --env 'DB_EXTENSION=pg_trgm' \
    --volume /srv/docker/gitlab/postgresql:/var/lib/postgresql \
    sameersbn/postgresql:11-20200524

The above command will create a database named gitlabhq_production and also create a user named gitlab with the password password with access to the gitlabhq_production database.

We are now ready to start the GitLab application.

docker run --name gitlab -d --link gitlab-postgresql:postgresql \
    --volume /srv/docker/gitlab/gitlab:/home/git/data \
    sameersbn/gitlab:13.0.6

Here the image will also automatically fetch the DB_NAME, DB_USER and DB_PASS variables from the postgresql container as they are specified in the docker run command for the postgresql container. This is made possible using the magic of docker links and works with the following images:

• postgres
• sameersbn/postgresql
• orchardup/postgresql
• paintedfox/postgresql

Redis

GitLab uses the redis server for its key-value data store. The redis server connection details can be specified using environment variables.

Internal Redis Server

The internal redis server has been removed from the image. Please use a linked redis container or specify a external redis connection.

External Redis Server

The image can be configured to use an external redis server. The configuration should be specified using environment variables while starting the GitLab image.

Assuming that the redis server host is 192.168.1.100

docker run --name gitlab -it --rm \
    --env 'REDIS_HOST=192.168.1.100' --env 'REDIS_PORT=6379' \
    sameersbn/gitlab:13.0.6

Linking to Redis Container

You can link this image with a redis container to satisfy gitlab's redis requirement. The alias of the redis server container should be set to redisio while linking with the gitlab image.

To illustrate linking with a redis container, we will use the sameersbn/redis image. Please refer the README of docker-redis for details.

First, lets pull the redis image from the docker index.

docker pull sameersbn/redis:4.0.9-2

Lets start the redis container

docker run --name gitlab-redis -d \
    --volume /srv/docker/gitlab/redis:/var/lib/redis \
    sameersbn/redis:4.0.9-2

We are now ready to start the GitLab application.

docker run --name gitlab -d --link gitlab-redis:redisio \
    sameersbn/gitlab:13.0.6

Mail

The mail configuration should be specified using environment variables while starting the GitLab image. The configuration defaults to using gmail to send emails and requires the specification of a valid username and password to login to the gmail servers.

If you are using Gmail then all you need to do is:

docker run --name gitlab -d \
    --env 'SMTP_USER=USER@gmail.com' --env 'SMTP_PASS=PASSWORD' \
    --volume /srv/docker/gitlab/gitlab:/home/git/data \
    sameersbn/gitlab:13.0.6

Please refer the Available Configuration Parameters section for the list of SMTP parameters that can be specified.

Reply by email

Since version 8.0.0 GitLab adds support for commenting on issues by replying to emails.

To enable this feature you need to provide IMAP configuration parameters that will allow GitLab to connect to your mail server and read mails. Additionally, you may need to specify GITLAB_INCOMING_EMAIL_ADDRESS if your incoming email address is not the same as the IMAP_USER.

If your email provider supports email sub-addressing then you should add the +%{key} placeholder after the user part of the email address, eg. GITLAB_INCOMING_EMAIL_ADDRESS=reply+%{key}@example.com. Please read the documentation on reply by email to understand the requirements for this feature.

If you are using Gmail then all you need to do is:

docker run --name gitlab -d \
    --env 'IMAP_USER=USER@gmail.com' --env 'IMAP_PASS=PASSWORD' \
    --env 'GITLAB_INCOMING_EMAIL_ADDRESS=USER+%{key}@gmail.com' \
    --volume /srv/docker/gitlab/gitlab:/home/git/data \
    sameersbn/gitlab:13.0.6

Please refer the Available Configuration Parameters section for the list of IMAP parameters that can be specified.

SSL

Access to the gitlab application can be secured using SSL so as to prevent unauthorized access to the data in your repositories. While a CA certified SSL certificate allows for verification of trust via the CA, a self signed certificate can also provide an equal level of trust verification as long as each client takes some additional steps to verify the identity of your website. I will provide instructions on achieving this towards the end of this section.

Jump to the Using HTTPS with a load balancer section if you are using a load balancer such as hipache, haproxy or nginx.

To secure your application via SSL you basically need two things:

• Private key (.key)
• SSL certificate (.crt)

When using CA certified certificates, these files are provided to you by the CA. When using self-signed certificates you need to generate these files yourself. Skip to Strengthening the server security section if you are armed with CA certified SSL certificates.

Generation of a Self Signed Certificate

Generation of a self-signed SSL certificate involves a simple 3-step procedure:

STEP 1: Create the server private key

openssl genrsa -out gitlab.key 2048

STEP 2: Create the certificate signing request (CSR)

openssl req -new -key gitlab.key -out gitlab.csr

STEP 3: Sign the certificate using the private key and CSR

openssl x509 -req -days 3650 -in gitlab.csr -signkey gitlab.key -out gitlab.crt

Congratulations! You now have a self-signed SSL certificate valid for 10 years.

Strengthening the server security

This section provides you with instructions to strengthen your server security. To achieve this we need to generate stronger DHE parameters.

openssl dhparam -out dhparam.pem 2048

Installation of the SSL Certificates

Out of the four files generated above, we need to install the gitlab.key, gitlab.crt and dhparam.pem files at the gitlab server. The CSR file is not needed, but do make sure you safely backup the file (in case you ever need it again).

The default path that the gitlab application is configured to look for the SSL certificates is at /home/git/data/certs, this can however be changed using the SSL_KEY_PATH, SSL_CERTIFICATE_PATH and SSL_DHPARAM_PATH configuration options.

If you remember from above, the /home/git/data path is the path of the data store, which means that we have to create a folder named certs/ inside /srv/docker/gitlab/gitlab/ and copy the files into it and as a measure of security we'll update the permission on the gitlab.key file to only be readable by the owner.

mkdir -p /srv/docker/gitlab/gitlab/certs
cp gitlab.key /srv/docker/gitlab/gitlab/certs/
cp gitlab.crt /srv/docker/gitlab/gitlab/certs/
cp dhparam.pem /srv/docker/gitlab/gitlab/certs/
chmod 400 /srv/docker/gitlab/gitlab/certs/gitlab.key

Great! we are now just one step away from having our application secured.

Enabling HTTPS support

HTTPS support can be enabled by setting the GITLAB_HTTPS option to true. Additionally, when using self-signed SSL certificates you need to the set SSL_SELF_SIGNED option to true as well. Assuming we are using self-signed certificates

docker run --name gitlab -d \
    --publish 10022:22 --publish 10080:80 --publish 10443:443 \
    --env 'GITLAB_SSH_PORT=10022' --env 'GITLAB_PORT=10443' \
    --env 'GITLAB_HTTPS=true' --env 'SSL_SELF_SIGNED=true' \
    --volume /srv/docker/gitlab/gitlab:/home/git/data \
    sameersbn/gitlab:13.0.6

In this configuration, any requests made over the plain http protocol will automatically be redirected to use the https protocol. However, this is not optimal when using a load balancer.

Configuring HSTS

HSTS if supported by the browsers makes sure that your users will only reach your sever via HTTPS. When the user comes for the first time it sees a header from the server which states for how long from now this site should only be reachable via HTTPS - that's the HSTS max-age value.

With NGINX_HSTS_MAXAGE you can configure that value. The default value is 31536000 seconds. If you want to disable a already sent HSTS MAXAGE value, set it to 0.

docker run --name gitlab -d \
 --env 'GITLAB_HTTPS=true' --env 'SSL_SELF_SIGNED=true' \
 --env 'NGINX_HSTS_MAXAGE=2592000' \
 --volume /srv/docker/gitlab/gitlab:/home/git/data \
 sameersbn/gitlab:13.0.6

If you want to completely disable HSTS set NGINX_HSTS_ENABLED to false.

Using HTTPS with a load balancer

Load balancers like nginx/haproxy/hipache talk to backend applications over plain http and as such the installation of ssl keys and certificates are not required and should NOT be installed in the container. The SSL configuration has to instead be done at the load balancer.

However, when using a load balancer you MUST set GITLAB_HTTPS to true. Additionally you will need to set the SSL_SELF_SIGNED option to true if self signed SSL certificates are in use.

With this in place, you should configure the load balancer to support handling of https requests. But that is out of the scope of this document. Please refer to Using SSL/HTTPS with HAProxy for information on the subject.

When using a load balancer, you probably want to make sure the load balancer performs the automatic http to https redirection. Information on this can also be found in the link above.

In summation, when using a load balancer, the docker command would look for the most part something like this:

docker run --name gitlab -d \
    --publish 10022:22 --publish 10080:80 \
    --env 'GITLAB_SSH_PORT=10022' --env 'GITLAB_PORT=443' \
    --env 'GITLAB_HTTPS=true' --env 'SSL_SELF_SIGNED=true' \
    --volume /srv/docker/gitlab/gitlab:/home/git/data \
    sameersbn/gitlab:13.0.6

Again, drop the --env 'SSL_SELF_SIGNED=true' option if you are using CA certified SSL certificates.

In case GitLab responds to any kind of POST request (login, OAUTH, changing settings etc.) with a 422 HTTP Error, consider adding this to your reverse proxy configuration:

proxy_set_header X-Forwarded-Ssl on; (nginx format)

Establishing trust with your server

This section deals will self-signed ssl certificates. If you are using CA certified certificates, your done.

This section is more of a client side configuration so as to add a level of confidence at the client to be 100 percent sure they are communicating with whom they think they.

This is simply done by adding the servers certificate into their list of trusted certificates. On ubuntu, this is done by copying the gitlab.crt file to /usr/local/share/ca-certificates/ and executing update-ca-certificates.

Again, this is a client side configuration which means that everyone who is going to communicate with the server should perform this configuration on their machine. In short, distribute the gitlab.crt file among your developers and ask them to add it to their list of trusted ssl certificates. Failure to do so will result in errors that look like this:

git clone https://git.local.host/gitlab-foss.git
fatal: unable to access 'https://git.local.host/gitlab-foss.git': server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none

You can do the same at the web browser. Instructions for installing the root certificate for firefox can be found here. You will find similar options chrome, just make sure you install the certificate under the authorities tab of the certificate manager dialog.

There you have it, that's all there is to it.

Installing Trusted SSL Server Certificates

If your GitLab CI server is using self-signed SSL certificates then you should make sure the GitLab CI server certificate is trusted on the GitLab server for them to be able to talk to each other.

The default path image is configured to look for the trusted SSL certificates is at /home/git/data/certs/ca.crt, this can however be changed using the SSL_CA_CERTIFICATES_PATH configuration option.

Copy the ca.crt file into the certs directory on the datastore. The ca.crt file should contain the root certificates of all the servers you want to trust. With respect to GitLab CI, this will be the contents of the gitlab_ci.crt file as described in the README of the docker-gitlab-ci container.

By default, our own server certificate gitlab.crt is added to the trusted certificates list.

Deploy to a subdirectory (relative url root)

By default GitLab expects that your application is running at the root (eg. /). This section explains how to run your application inside a directory.

Let's assume we want to deploy our application to '/git'. GitLab needs to know this directory to generate the appropriate routes. This can be specified using the GITLAB_RELATIVE_URL_ROOT configuration option like so:

docker run --name gitlab -it --rm \
    --env 'GITLAB_RELATIVE_URL_ROOT=/git' \
    --volume /srv/docker/gitlab/gitlab:/home/git/data \
    sameersbn/gitlab:13.0.6

GitLab will now be accessible at the /git path, e.g. http://www.example.com/git.

Note: The GITLAB_RELATIVE_URL_ROOT parameter should always begin with a slash and SHOULD NOT have any trailing slashes.

OmniAuth Integration

GitLab leverages OmniAuth to allow users to sign in using Twitter, GitHub, and other popular services. Configuring OmniAuth does not prevent standard GitLab authentication or LDAP (if configured) from continuing to work. Users can choose to sign in using any of the configured mechanisms.

Refer to the GitLab documentation for additional information.

CAS3

To enable the CAS OmniAuth provider you must register your application with your CAS instance. This requires the service URL GitLab will supply to CAS. It should be something like: https://git.example.com:443/users/auth/cas3/callback?url. By default handling for SLO is enabled, you only need to configure CAS for backchannel logout.

For example, if your cas server url is https://sso.example.com, then adding --env 'OAUTH_CAS3_SERVER=https://sso.example.com' to the docker run command enables support for CAS3 OAuth. Please refer to Available Configuration Parameters for additional CAS3 configuration parameters.

Authentiq

To enable the Authentiq OmniAuth provider for passwordless authentication you must register an application with Authentiq. Please refer to the GitLab documentation for the procedure to generate the client ID and secret key with Authentiq.

Once you have the API client id and client secret generated, configure them using the OAUTH_AUTHENTIQ_CLIENT_ID and OAUTH_AUTHENTIQ_CLIENT_SECRET environment variables respectively.

For example, if your API key is xxx and the API secret key is yyy, then adding --env 'OAUTH_AUTHENTIQ_CLIENT_ID=xxx' --env 'OAUTH_AUTHENTIQ_CLIENT_SECRET=yyy' to the docker run command enables support for Authentiq OAuth.

You may want to specify OAUTH_AUTHENTIQ_REDIRECT_URI as well. The OAuth scope can be altered as well with OAUTH_AUTHENTIQ_SCOPE (defaults to 'aq:name email~rs address aq:push').

Google

To enable the Google OAuth2 OmniAuth provider you must register your application with Google. Google will generate a client ID and secret key for you to use. Please refer to the GitLab documentation for the procedure to generate the client ID and secret key with google.

Once you have the client ID and secret keys generated, configure them using the OAUTH_GOOGLE_API_KEY and OAUTH_GOOGLE_APP_SECRET environment variables respectively.

For example, if your client ID is xxx.apps.googleusercontent.com and client secret key is yyy, then adding --env 'OAUTH_GOOGLE_API_KEY=xxx.apps.googleusercontent.com' --env 'OAUTH_GOOGLE_APP_SECRET=yyy' to the docker run command enables support for Google OAuth.

You can also restrict logins to a single domain by adding --env "OAUTH_GOOGLE_RESTRICT_DOMAIN='example.com'".

Facebook

To enable the Facebook OAuth2 OmniAuth provider you must register your application with Facebook. Facebook will generate a API key and secret for you to use. Please refer to the GitLab documentation for the procedure to generate the API key and secret.

Once you have the API key and secret generated, configure them using the OAUTH_FACEBOOK_API_KEY and OAUTH_FACEBOOK_APP_SECRET environment variables respectively.

For example, if your API key is xxx and the API secret key is yyy, then adding --env 'OAUTH_FACEBOOK_API_KEY=xxx' --env 'OAUTH_FACEBOOK_APP_SECRET=yyy' to the docker run command enables support for Facebook OAuth.

Twitter

To enable the Twitter OAuth2 OmniAuth provider you must register your application with Twitter. Twitter will generate a API key and secret for you to use. Please refer to the GitLab documentation for the procedure to generate the API key and secret with twitter.

Once you have the API key and secret generated, configure them using the OAUTH_TWITTER_API_KEY and OAUTH_TWITTER_APP_SECRET environment variables respectively.

For example, if your API key is xxx and the API secret key is yyy, then adding --env 'OAUTH_TWITTER_API_KEY=xxx' --env 'OAUTH_TWITTER_APP_SECRET=yyy' to the docker run command enables support for Twitter OAuth.

GitHub

To enable the GitHub OAuth2 OmniAuth provider you must register your application with GitHub. GitHub will generate a Client ID and secret for you to use. Please refer to the GitLab documentation for the procedure to generate the Client ID and secret with github.

Once you have the Client ID and secret generated, configure them using the OAUTH_GITHUB_API_KEY and OAUTH_GITHUB_APP_SECRET environment variables respectively.

For example, if your Client ID is xxx and the Client secret is yyy, then adding --env 'OAUTH_GITHUB_API_KEY=xxx' --env 'OAUTH_GITHUB_APP_SECRET=yyy' to the docker run command enables support for GitHub OAuth.

Users of GitHub Enterprise may want to specify OAUTH_GITHUB_URL and OAUTH_GITHUB_VERIFY_SSL as well.

GitLab

To enable the GitLab OAuth2 OmniAuth provider you must register your application with GitLab. GitLab will generate a Client ID and secret for you to use. Please refer to the GitLab documentation for the procedure to generate the Client ID and secret with GitLab.

Once you have the Client ID and secret generated, configure them using the OAUTH_GITLAB_API_KEY and OAUTH_GITLAB_APP_SECRET environment variables respectively.

For example, if your Client ID is xxx and the Client secret is yyy, then adding --env 'OAUTH_GITLAB_API_KEY=xxx' --env 'OAUTH_GITLAB_APP_SECRET=yyy' to the docker run command enables support for GitLab OAuth.

BitBucket

To enable the BitBucket OAuth2 OmniAuth provider you must register your application with BitBucket. BitBucket will generate a Client ID and secret for you to use. Please refer to the GitLab documentation for the procedure to generate the Client ID and secret with BitBucket.

Once you have the Client ID and secret generated, configure them using the OAUTH_BITBUCKET_API_KEY and OAUTH_BITBUCKET_APP_SECRET environment variables respectively.

For example, if your Client ID is xxx and the Client secret is yyy, then adding --env 'OAUTH_BITBUCKET_API_KEY=xxx' --env 'OAUTH_BITBUCKET_APP_SECRET=yyy' to the docker run command enables support for BitBucket OAuth.

SAML

GitLab can be configured to act as a SAML 2.0 Service Provider (SP). This allows GitLab to consume assertions from a SAML 2.0 Identity Provider (IdP) such as Microsoft ADFS to authenticate users. Please refer to the GitLab documentation.

The following parameters have to be configured to enable SAML OAuth support in this image: OAUTH_SAML_ASSERTION_CONSUMER_SERVICE_URL, OAUTH_SAML_IDP_CERT_FINGERPRINT, OAUTH_SAML_IDP_SSO_TARGET_URL, OAUTH_SAML_ISSUER and OAUTH_SAML_NAME_IDENTIFIER_FORMAT.

You can also override the default "Sign in with" button label with OAUTH_SAML_LABEL.

Please refer to Available Configuration Parameters for the default configurations of these parameters.

Crowd

To enable the Crowd server OAuth2 OmniAuth provider you must register your application with Crowd server.

Configure GitLab to enable access the Crowd server by specifying the OAUTH_CROWD_SERVER_URL, OAUTH_CROWD_APP_NAME and OAUTH_CROWD_APP_PASSWORD environment variables.

Auth0

To enable the Auth0 OmniAuth provider you must register your application with auth0.

Configure the following environment variables OAUTH_AUTH0_CLIENT_ID, OAUTH_AUTH0_CLIENT_SECRET and OAUTH_AUTH0_DOMAIN to complete the integration.

Microsoft Azure

To enable the Microsoft Azure OAuth2 OmniAuth provider you must register your application with Azure. Azure will generate a Client ID, Client secret and Tenant ID for you to use. Please refer to the GitLab documentation for the procedure.

Once you have the Client ID, Client secret and Tenant ID generated, configure them using the OAUTH_AZURE_API_KEY, OAUTH_AZURE_API_SECRET and OAUTH_AZURE_TENANT_ID environment variables respectively.

For example, if your Client ID is xxx, the Client secret is yyy and the Tenant ID is zzz, then adding --env 'OAUTH_AZURE_API_KEY=xxx' --env 'OAUTH_AZURE_API_SECRET=yyy' --env 'OAUTH_AZURE_TENANT_ID=zzz' to the docker run command enables support for Microsoft Azure OAuth.

Generic OAuth2

To enable the Generic OAuth2 provider, you must register your application with your provider. You also need to confirm OAuth2 provider app's ID and secret, the client options and the user's response structure.

As an example this code has been tested with Keycloak, with the following variables: OAUTH2_GENERIC_APP_ID, OAUTH2_GENERIC_APP_SECRET, OAUTH2_GENERIC_CLIENT_SITE, OAUTH2_GENERIC_CLIENT_USER_INFO_URL, OAUTH2_GENERIC_CLIENT_AUTHORIZE_URL, OAUTH2_GENERIC_CLIENT_TOKEN_URL, OAUTH2_GENERIC_CLIENT_END_SESSION_ENDPOINT, OAUTH2_GENERIC_ID_PATH, OAUTH2_GENERIC_USER_UID, OAUTH2_GENERIC_USER_NAME, OAUTH2_GENERIC_USER_EMAIL, OAUTH2_GENERIC_NAME,

See GitLab documentation and Omniauth-oauth2-generic documentation for more details.

Gitlab Pages

Gitlab Pages allows a user to host static websites from a project. Gitlab pages can be enabled with setting the envrionment variable GITLAB_PAGES_ENABLED to true.

Gitlab Pages Access Control

Since version 11.5.0 Gitlab pages supports access control. This allows only access to a published website if you are a project member, or have access to a certain project.

Gitlab pages access control requires additional configuration before activating it through the variable GITLAB_PAGES_ACCESS_CONTROL.

Gitab pages access control makes use of the Gitlab OAuth Module.

• Goto the Gitlab Admin area
• Select Applications in the menu
• Create New Application
  • Name: Gitlab Pages
  • Scopes:
    • api
  • Trusted: NO (Do not select)
  • Redirect URI: https://projects.<GITLAB_PAGES_DOMAIN>/auth

Note about the Redirect URI; this can be tricky to configure or figure out, What needs to be achieved is to following, the redirect URI needs to end up at the gitlab-pages daemon with the /auth endpoint.

This means that if you run your gitlab pages at domain pages.example.io this will be a wilcard domain where your projects are created based on their namespace. The best trick is to enter a NON-Existing gitlab project pages URI as the redirect URI.

In the example above; the pages domain projects has been chosen. This will cause the nginx, either the built in or your own loadbalancer to redirect *.<GITLAB_PAGES_DOMAIN> to the gitlab-pages daemon. Which will trigger the pages endpoint.

Make sure to choose own which does not exist and make sure that the request is routed to the gitlab-pages daemon if you are using your own HTTP load balancer in front of Gitlab.

After creating the OAuth application endpoint for the Gitlab Pages Daemon. Gitlab pages access control can now be enabled.

Add to following environment variables to your Gitlab Container.

Variable	R/O	Description
GITLAB_PAGES_ACCESS_CONTROL	Required	Set to true to enable access control.
GITLAB_PAGES_ACCESS_SECRET	Optional	Secret Hash, minimal 32 characters, if omitted, it will be auto generated.
GITLAB_PAGES_ACCESS_CONTROL_SERVER	Required	Gitlab instance URI, example: https://gitlab.example.io
GITLAB_PAGES_ACCESS_CLIENT_ID	Required	Client ID from earlier generated OAuth application
GITLAB_PAGES_ACCESS_CLIENT_SECRET	Required	Client Secret from earlier genereated OAuth application
GITLAB_PAGES_ACCESS_REDIRECT_URI	Required	Redirect URI, non existing pages domain to redirect to pages daemon, https://projects.example.io

After you have enabled the gitlab pages access control. When you go to a project General Settings -> Permissions you can choose the pages persmission level for the project.

External Issue Trackers

Since version 7.10.0 support for external issue trackers can be enabled in the "Service Templates" section of the settings panel.

If you are using the docker-redmine image, you can one up the gitlab integration with redmine by adding --volumes-from=gitlab flag to the docker run command while starting the redmine container.

By using the above option the /home/git/data/repositories directory will be accessible by the redmine container and now you can add your git repository path to your redmine project. If, for example, in your gitlab server you have a project named opensource/gitlab, the bare repository will be accessible at /home/git/data/repositories/opensource/gitlab.git in the redmine container.

Host UID / GID Mapping

Per default the container is configured to run gitlab as user and group git with uid and gid 1000. The host possibly uses this ids for different purposes leading to unfavorable effects. From the host it appears as if the mounted data volumes are owned by the host's user/group 1000.

Also the container processes seem to be executed as the host's user/group 1000. The container can be configured to map the uid and gid of git to different ids on host by passing the environment variables USERMAP_UID and USERMAP_GID. The following command maps the ids to user and group git on the host.

docker run --name gitlab -it --rm [options] \
    --env "USERMAP_UID=$(id -u git)" --env "USERMAP_GID=$(id -g git)" \
    sameersbn/gitlab:13.0.6

When changing this mapping, all files and directories in the mounted data volume /home/git/data have to be re-owned by the new ids. This can be achieved automatically using the following command:

docker run --name gitlab -d [OPTIONS] \
    sameersbn/gitlab:13.0.6 app:sanitize

Piwik

If you want to monitor your gitlab instance with Piwik, there are two options to setup: PIWIK_URL and PIWIK_SITE_ID. These options should contain something like:

• PIWIK_URL=piwik.example.org
• PIWIK_SITE_ID=42

Available Configuration Parameters

Please refer the docker run command options for the --env-file flag where you can specify all required environment variables in a single file. This will save you from writing a potentially long docker run command. Alternatively you can use docker-compose. docker-compose users and Docker Swarm mode users can also use the secrets and config file options

Below is the complete list of available options that can be used to customize your gitlab installation.

Parameter	Description
DEBUG	Set this to true to enable entrypoint debugging.
GITLAB_HOST	The hostname of the GitLab server. Defaults to localhost
GITLAB_CI_HOST	If you are migrating from GitLab CI use this parameter to configure the redirection to the GitLab service so that your existing runners continue to work without any changes. No defaults.
GITLAB_PORT	The port of the GitLab server. This value indicates the public port on which the GitLab application will be accessible on the network and appropriately configures GitLab to generate the correct urls. It does not affect the port on which the internal nginx server will be listening on. Defaults to 443 if GITLAB_HTTPS=true, else defaults to 80.
GITLAB_SECRETS_DB_KEY_BASE	Encryption key for GitLab CI secret variables, as well as import credentials, in the database. Ensure that your key is at least 32 characters long and that you don't lose it. You can generate one using pwgen -Bsv1 64. If you are migrating from GitLab CI, you need to set this value to the value of GITLAB_CI_SECRETS_DB_KEY_BASE. No defaults.
GITLAB_SECRETS_SECRET_KEY_BASE	Encryption key for session secrets. Ensure that your key is at least 64 characters long and that you don't lose it. This secret can be rotated with minimal impact - the main effect is that previously-sent password reset emails will no longer work. You can generate one using pwgen -Bsv1 64. No defaults.
GITLAB_SECRETS_OTP_KEY_BASE	Encryption key for OTP related stuff with GitLab. Ensure that your key is at least 64 characters long and that you don't lose it. If you lose or change this secret, 2FA will stop working for all users. You can generate one using pwgen -Bsv1 64. No defaults.
GITLAB_TIMEZONE	Configure the timezone for the gitlab application. This configuration does not effect cron jobs. Defaults to UTC. See the list of acceptable values.
GITLAB_ROOT_PASSWORD	The password for the root user on firstrun. Defaults to 5iveL!fe. GitLab requires this to be at least 8 characters long.
GITLAB_ROOT_EMAIL	The email for the root user on firstrun. Defaults to admin@example.com
GITLAB_EMAIL	The email address for the GitLab server. Defaults to value of SMTP_USER, else defaults to example@example.com.
GITLAB_EMAIL_DISPLAY_NAME	The name displayed in emails sent out by the GitLab mailer. Defaults to GitLab.
GITLAB_EMAIL_REPLY_TO	The reply-to address of emails sent out by GitLab. Defaults to value of GITLAB_EMAIL, else defaults to noreply@example.com.
GITLAB_EMAIL_SUBJECT_SUFFIX	The e-mail subject suffix used in e-mails sent by GitLab. No defaults.
GITLAB_EMAIL_ENABLED	Enable or disable gitlab mailer. Defaults to the SMTP_ENABLED configuration.
GITLAB_EMAIL_SMIME_ENABLE	Enable or disable email S/MIME signing. Defaults is false.
GITLAB_EMAIL_SMIME_KEY_FILE	Specifies the path to a S/MIME private key file in PEM format, unencrypted. Defaults to ``.
GITLAB_EMAIL_SMIME_CERT_FILE	Specifies the path to a S/MIME public certificate key in PEM format. Defaults to ``.
GITLAB_DEFAULT_THEME	Default theme ID, by default 2. (1 - Indigo, 2 - Dark, 3 - Light, 4 - Blue, 5 - Green, 6 - Light Indigo, 7 - Light Blue, 8 - Light Green, 9 - Red, 10 - Light Red)
GITLAB_INCOMING_EMAIL_ADDRESS	The incoming email address for reply by email. Defaults to the value of IMAP_USER, else defaults to reply@example.com. Please read the reply by email documentation to currently set this parameter.
GITLAB_INCOMING_EMAIL_ENABLED	Enable or disable gitlab reply by email feature. Defaults to the value of IMAP_ENABLED.
GITLAB_SIGNUP_ENABLED	Enable or disable user signups (first run only). Default is true.
GITLAB_IMPERSONATION_ENABLED	Enable or disable impersonation. Defaults to true.
GITLAB_PROJECTS_LIMIT	Set default projects limit. Defaults to 100.
GITLAB_USERNAME_CHANGE	Enable or disable ability for users to change their username. Defaults to true.
GITLAB_CREATE_GROUP	Enable or disable ability for users to create groups. Defaults to true.
GITLAB_PROJECTS_ISSUES	Set if issues feature should be enabled by default for new projects. Defaults to true.
GITLAB_PROJECTS_MERGE_REQUESTS	Set if merge requests feature should be enabled by default for new projects. Defaults to true.
GITLAB_PROJECTS_WIKI	Set if wiki feature should be enabled by default for new projects. Defaults to true.
GITLAB_PROJECTS_SNIPPETS	Set if snippets feature should be enabled by default for new projects. Defaults to false.
GITLAB_PROJECTS_BUILDS	Set if builds feature should be enabled by default for new projects. Defaults to true.
GITLAB_PROJECTS_CONTAINER_REGISTRY	Set if container_registry feature should be enabled by default for new projects. Defaults to true.
GITLAB_WEBHOOK_TIMEOUT	Sets the timeout for webhooks. Defaults to 10 seconds.
GITLAB_NOTIFY_ON_BROKEN_BUILDS	Enable or disable broken build notification emails. Defaults to true
GITLAB_NOTIFY_PUSHER	Add pusher to recipients list of broken build notification emails. Defaults to false
GITLAB_REPOS_DIR	The git repositories folder in the container. Defaults to /home/git/data/repositories
GITLAB_BACKUP_DIR	The backup folder in the container. Defaults to /home/git/data/backups
GITLAB_BACKUP_DIR_CHOWN	Optionally change ownership of backup files on start-up. Defaults to true
GITLAB_BACKUP_DIR_GROUP	Optionally group backups into a subfolder. Can also be used to place backups in to a subfolder on remote storage. Not used by default.
GITLAB_BUILDS_DIR	The build traces directory. Defaults to /home/git/data/builds
GITLAB_DOWNLOADS_DIR	The repository downloads directory. A temporary zip is created in this directory when users click Download Zip on a project. Defaults to /home/git/data/tmp/downloads.
GITLAB_SHARED_DIR	The directory to store the build artifacts. Defaults to /home/git/data/shared
GITLAB_ARTIFACTS_ENABLED	Enable/Disable GitLab artifacts support. Defaults to true.
GITLAB_ARTIFACTS_DIR	Directory to store the artifacts. Defaults to $GITLAB_SHARED_DIR/artifacts
AWS_ACCESS_KEY_ID	Default AWS access key to be used for object store. Defaults to AWS_ACCESS_KEY_ID
AWS_SECRET_ACCESS_KEY	Default AWS access key to be used for object store. Defaults to AWS_SECRET_ACCESS_KEY
GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_PROJECT	Default Google project to use for Object Store.
GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_CLIENT_EMAIL	Default Google service account email to use for Object Store.
GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_JSON_KEY_LOCATION	Default Google key file Defaults to /gcs/key.json
GITLAB_OBJECT_STORE_CONNECTION_PROVIDER	Default object store connection provider. Defaults to AWS
GITLAB_ARTIFACTS_OBJECT_STORE_ENABLED	Enables Object Store for Artifacts that will be remote stored. Defaults to false
GITLAB_ARTIFACTS_OBJECT_STORE_REMOTE_DIRECTORY	Bucket name to store the artifacts. Defaults to artifacts
GITLAB_ARTIFACTS_OBJECT_STORE_DIRECT_UPLOAD	Set to true to enable direct upload of Artifacts without the need of local shared storage. Defaults to false
GITLAB_ARTIFACTS_OBJECT_STORE_BACKGROUND_UPLOAD	Temporary option to limit automatic upload. Defaults to false
GITLAB_ARTIFACTS_OBJECT_STORE_PROXY_DOWNLOAD	Passthrough all downloads via GitLab instead of using Redirects to Object Storage. Defaults to false
GITLAB_ARTIFACTS_OBJECT_STORE_CONNECTION_PROVIDER	Connection Provider for the Object Store. (AWS or Google) Defaults to $GITLAB_OBJECT_STORE_CONNECTION_PROVIDER (AWS)
GITLAB_ARTIFACTS_OBJECT_STORE_CONNECTION_AWS_ACCESS_KEY_ID	AWS Access Key ID for the Bucket. Defaults to $AWS_ACCESS_KEY_ID
GITLAB_ARTIFACTS_OBJECT_STORE_CONNECTION_AWS_SECRET_ACCESS_KEY	AWS Secret Access Key. Defaults to $AWS_SECRET_ACCESS_KEY
GITLAB_ARTIFACTS_OBJECT_STORE_CONNECTION_AWS_REGION	AWS Region. Defaults to us-east-1
GITLAB_ARTIFACTS_OBJECT_STORE_CONNECTION_AWS_HOST	Configure this for an compatible AWS host like minio. Defaults to s3.amazonaws.com
GITLAB_ARTIFACTS_OBJECT_STORE_CONNECTION_AWS_ENDPOINT	AWS Endpoint like http://127.0.0.1:9000. Defaults to nil
GITLAB_ARTIFACTS_OBJECT_STORE_CONNECTION_AWS_PATH_STYLE	Changes AWS Path Style to 'host/bucket_name/object' instead of 'bucket_name.host/object'. Defaults to true
GITLAB_ARTIFACTS_OBJECT_STORE_CONNECTION_GOOGLE_PROJECT	Google project. Defaults to $GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_PROJECT
GITLAB_ARTIFACTS_OBJECT_STORE_CONNECTION_GOOGLE_CLIENT_EMAIL	Google service account. Defaults to $GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_CLIENT_EMAIL
GITLAB_ARTIFACTS_OBJECT_STORE_CONNECTION_GOOGLE_JSON_KEY_LOCATION	Default Google key file. Defaults to $GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_JSON_KEY_LOCATION (/gcs/key.json)
GITLAB_PIPELINE_SCHEDULE_WORKER_CRON	Cron notation for the GitLab pipeline schedule worker. Defaults to '19 * * * *'
GITLAB_LFS_ENABLED	Enable/Disable Git LFS support. Defaults to true.
GITLAB_LFS_OBJECTS_DIR	Directory to store the lfs-objects. Defaults to $GITLAB_SHARED_DIR/lfs-objects
GITLAB_LFS_OBJECT_STORE_ENABLED	Enables Object Store for LFS that will be remote stored. Defaults to false
GITLAB_LFS_OBJECT_STORE_REMOTE_DIRECTORY	Bucket name to store the LFS. Defaults to lfs-object
GITLAB_LFS_OBJECT_STORE_BACKGROUND_UPLOAD	Temporary option to limit automatic upload. Defaults to false
GITLAB_LFS_OBJECT_STORE_PROXY_DOWNLOAD	Passthrough all downloads via GitLab instead of using Redirects to Object Storage. Defaults to false
GITLAB_LFS_OBJECT_STORE_CONNECTION_PROVIDER	Connection Provider for the Object Store. (AWS or Google) Defaults to $GITLAB_OBJECT_STORE_CONNECTION_PROVIDER (AWS)
GITLAB_LFS_OBJECT_STORE_CONNECTION_AWS_ACCESS_KEY_ID	AWS Access Key ID for the Bucket. Defaults to AWS_ACCESS_KEY_ID
GITLAB_LFS_OBJECT_STORE_CONNECTION_AWS_SECRET_ACCESS_KEY	AWS Secret Access Key. Defaults to AWS_SECRET_ACCESS_KEY
GITLAB_LFS_OBJECT_STORE_CONNECTION_AWS_REGION	AWS Region. Defaults to us-east-1
GITLAB_LFS_OBJECT_STORE_CONNECTION_AWS_HOST	Configure this for an compatible AWS host like minio. Defaults to s3.amazonaws.com
GITLAB_LFS_OBJECT_STORE_CONNECTION_AWS_ENDPOINT	AWS Endpoint like http://127.0.0.1:9000. Defaults to nil
GITLAB_LFS_OBJECT_STORE_CONNECTION_AWS_PATH_STYLE	Changes AWS Path Style to 'host/bucket_name/object' instead of 'bucket_name.host/object'. Defaults to true
GITLAB_LFS_OBJECT_STORE_CONNECTION_GOOGLE_PROJECT	Google project. Defaults to $GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_PROJECT
GITLAB_LFS_OBJECT_STORE_CONNECTION_GOOGLE_CLIENT_EMAIL	Google service account. Defaults to $GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_CLIENT_EMAIL
GITLAB_LFS_OBJECT_STORE_CONNECTION_GOOGLE_JSON_KEY_LOCATION	Default Google key file. Defaults to $GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_JSON_KEY_LOCATION (/gcs/key.json)
GITLAB_UPLOADS_STORAGE_PATH	The location where uploads objects are stored. Defaults to $GITLAB_SHARED_DIR/public.
GITLAB_UPLOADS_BASE_DIR	Mapping for the GITLAB_UPLOADS_STORAGE_PATH. Defaults to uploads/-/system
GITLAB_UPLOADS_OBJECT_STORE_ENABLED	Enables Object Store for UPLOADS that will be remote stored. Defaults to false
GITLAB_UPLOADS_OBJECT_STORE_REMOTE_DIRECTORY	Bucket name to store the UPLOADS. Defaults to uploads
GITLAB_UPLOADS_OBJECT_STORE_BACKGROUND_UPLOAD	Temporary option to limit automatic upload. Defaults to false
GITLAB_UPLOADS_OBJECT_STORE_PROXY_DOWNLOAD	Passthrough all downloads via GitLab instead of using Redirects to Object Storage. Defaults to false
GITLAB_UPLOADS_OBJECT_STORE_CONNECTION_PROVIDER	Connection Provider for the Object Store. (AWS or Google) Defaults to $GITLAB_OBJECT_STORE_CONNECTION_PROVIDER (AWS)
GITLAB_UPLOADS_OBJECT_STORE_CONNECTION_AWS_ACCESS_KEY_ID	AWS Access Key ID for the Bucket. Defaults to AWS_ACCESS_KEY_ID
GITLAB_UPLOADS_OBJECT_STORE_CONNECTION_AWS_SECRET_ACCESS_KEY	AWS Secret Access Key. Defaults to AWS_SECRET_ACCESS_KEY
GITLAB_UPLOADS_OBJECT_STORE_CONNECTION_AWS_REGION	AWS Region. Defaults to us-east-1
GITLAB_UPLOADS_OBJECT_STORE_CONNECTION_AWS_HOST	Configure this for an compatible AWS host like minio. Defaults to s3.amazonaws.com
GITLAB_UPLOADS_OBJECT_STORE_CONNECTION_AWS_ENDPOINT	AWS Endpoint like http://127.0.0.1:9000. Defaults to nil
GITLAB_UPLOADS_OBJECT_STORE_CONNECTION_AWS_PATH_STYLE	Changes AWS Path Style to 'host/bucket_name/object' instead of 'bucket_name.host/object'. Defaults to true
GITLAB_UPLOADS_OBJECT_STORE_CONNECTION_GOOGLE_PROJECT	Google project. Defaults to $GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_PROJECT
GITLAB_UPLOADS_OBJECT_STORE_CONNECTION_GOOGLE_CLIENT_EMAIL	Google service account. Defaults to $GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_CLIENT_EMAIL
GITLAB_UPLOADS_OBJECT_STORE_CONNECTION_GOOGLE_JSON_KEY_LOCATION	Default Google key file. Defaults to $GITLAB_OBJECT_STORE_CONNECTION_GOOGLE_JSON_KEY_LOCATION (/gcs/key.json)
GITLAB_MATTERMOST_ENABLED	Enable/Disable GitLab Mattermost for Add Mattermost button. Defaults to false.
GITLAB_MATTERMOST_URL	Sets Mattermost URL. Defaults to https://mattermost.example.com.
GITLAB_BACKUP_SCHEDULE	Setup cron job to automatic backups. Possible values disable, daily, weekly or monthly. Disabled by default
GITLAB_BACKUP_EXPIRY	Configure how long (in seconds) to keep backups before they are deleted. By default when automated backups are disabled backups are kept forever (0 seconds), else the backups expire in 7 days (604800 seconds).
GITLAB_BACKUP_PG_SCHEMA	Specify the PostgreSQL schema for the backups. No defaults, which means that all schemas will be backed up. see #524
GITLAB_BACKUP_ARCHIVE_PERMISSIONS	Sets the permissions of the backup archives. Defaults to 0600. See
GITLAB_BACKUP_TIME	Set a time for the automatic backups in HH:MM format. Defaults to 04:00.
GITLAB_BACKUP_SKIP	Specified sections are skipped by the backups. Defaults to empty, i.e. lfs,uploads. See
GITLAB_SSH_HOST	The ssh host. Defaults to GITLAB_HOST.
GITLAB_SSH_LISTEN_PORT	The ssh port for SSHD to listen on. Defaults to 22
GITLAB_SSH_PORT	The ssh port number. Defaults to $GITLAB_SSH_LISTEN_PORT.
GITLAB_RELATIVE_URL_ROOT	The relative url of the GitLab server, e.g. /git. No default.
GITLAB_TRUSTED_PROXIES	Add IP address reverse proxy to trusted proxy list, otherwise users will appear signed in from that address. Currently only a single entry is permitted. No defaults.
GITLAB_REGISTRY_ENABLED	Enables the GitLab Container Registry. Defaults to false.
GITLAB_REGISTRY_HOST	Sets the GitLab Registry Host. Defaults to registry.example.com
GITLAB_REGISTRY_PORT	Sets the GitLab Registry Port. Defaults to 443.
GITLAB_REGISTRY_API_URL	Sets the GitLab Registry API URL. Defaults to http://localhost:5000
GITLAB_REGISTRY_KEY_PATH	Sets the GitLab Registry Key Path. Defaults to config/registry.key
GITLAB_REGISTRY_DIR	Directory to store the container images will be shared with registry. Defaults to $GITLAB_SHARED_DIR/registry
GITLAB_REGISTRY_ISSUER	Sets the GitLab Registry Issuer. Defaults to gitlab-issuer.
GITLAB_REGISTRY_GENERATE_INTERNAL_CERTIFICATES	Set to true to generate SSL internal Registry keys. Used to communicate between a Docker Registry and GitLab. It will generate a self-signed certificate key at the location given by $GITLAB_REGISTRY_KEY_PATH, e.g. /certs/registry.key. And will generate the certificate file at the same location, with the same name, but changing the extension from key to crt, e.g. /certs/registry.crt
GITLAB_PAGES_ENABLED	Enables the GitLab Pages. Defaults to false.
GITLAB_PAGES_DOMAIN	Sets the GitLab Pages Domain. Defaults to example.com
GITLAB_PAGES_DIR	Sets GitLab Pages directory where all pages will be stored. Defaults to $GITLAB_SHARED_DIR/pages
GITLAB_PAGES_PORT	Sets GitLab Pages Port that will be used in NGINX. Defaults to 80
GITLAB_PAGES_HTTPS	Sets GitLab Pages to HTTPS and the gitlab-pages-ssl config will be used. Defaults to false
GITLAB_PAGES_ARTIFACTS_SERVER	Set to true to enable pages artifactsserver, enabled by default.
GITLAB_PAGES_EXTERNAL_HTTP	Sets GitLab Pages external http to receive request on an independen port. Disabled by default
GITLAB_PAGES_EXTERNAL_HTTPS	Sets GitLab Pages external https to receive request on an independen port. Disabled by default
GITLAB_PAGES_ACCESS_CONTROL	Set to true to enable access control for pages. Allows access to a Pages site to be controlled based on a user’s membership to that project. Disabled by default.
GITLAB_PAGES_NGINX_PROXY	Disable the nginx proxy for gitlab pages, defaults to true. When set to false this will turn off the nginx proxy to the gitlab pages daemon, used when the user provides their own http load balancer in combination with a gitlab pages custom domain setup.
GITLAB_PAGES_ACCESS_SECRET	Secret Hash, minimal 32 characters, if omitted, it will be auto generated.
GITLAB_PAGES_ACCESS_CONTROL_SERVER	Gitlab instance URI, example: https://gitlab.example.io
GITLAB_PAGES_ACCESS_CLIENT_ID	Client ID from earlier generated OAuth application
GITLAB_PAGES_ACCESS_CLIENT_SECRET	Client Secret from earlier genereated OAuth application
GITLAB_PAGES_ACCESS_REDIRECT_URI	Redirect URI, non existing pages domain to redirect to pages daemon, https://projects.example.io/auth
GITLAB_HTTPS	Set to true to enable https support, disabled by default.
GITALY_CLIENT_PATH	Set default path for gitaly. defaults to /home/git/gitaly
GITALY_TOKEN	Set a gitaly token, blank by default.
GITLAB_MONITORING_UNICORN_SAMPLER_INTERVAL	Time between sampling of unicorn socket metrics, in seconds, defaults to 10
GITLAB_MONITORING_IP_WHITELIST	IP whitelist to access monitoring endpoints, defaults to 0.0.0.0/8
GITLAB_MONITORING_SIDEKIQ_EXPORTER_ENABLED	Set to true to enable the sidekiq exporter, enabled by default.
GITLAB_MONITORING_SIDEKIQ_EXPORTER_ADDRESS	Sidekiq exporter address, defaults to 0.0.0.0
GITLAB_MONITORING_SIDEKIQ_EXPORTER_PORT	Sidekiq exporter port, defaults to 3807
SSL_SELF_SIGNED	Set to true when using self signed ssl certificates. false by default.
SSL_CERTIFICATE_PATH	Location of the ssl certificate. Defaults to /home/git/data/certs/gitlab.crt
SSL_KEY_PATH	Location of the ssl private key. Defaults to /home/git/data/certs/gitlab.key
SSL_DHPARAM_PATH	Location of the dhparam file. Defaults to /home/git/data/certs/dhparam.pem
SSL_VERIFY_CLIENT	Enable verification of client certificates using the SSL_CA_CERTIFICATES_PATH file or setting this variable to on. Defaults to off
SSL_CA_CERTIFICATES_PATH	List of SSL certificates to trust. Defaults to /home/git/data/certs/ca.crt.
SSL_REGISTRY_KEY_PATH	Location of the ssl private key for gitlab container registry. Defaults to /home/git/data/certs/registry.key
SSL_REGISTRY_CERT_PATH	Location of the ssl certificate for the gitlab container registry. Defaults to /home/git/data/certs/registry.crt
SSL_PAGES_KEY_PATH	Location of the ssl private key for gitlab pages. Defaults to /home/git/data/certs/pages.key
SSL_PAGES_CERT_PATH	Location of the ssl certificate for the gitlab pages. Defaults to /home/git/data/certs/pages.crt
SSL_CIPHERS	List of supported SSL ciphers: Defaults to ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4
NGINX_WORKERS	The number of nginx workers to start. Defaults to 1.
NGINX_SERVER_NAMES_HASH_BUCKET_SIZE	Sets the bucket size for the server names hash tables. This is needed when you have long server_names or your an error message from nginx like nginx: [emerg] could not build server_names_hash, you should increase server_names_hash_bucket_size:... It should be only increment by a power of 2. Defaults to 32.
NGINX_HSTS_ENABLED	Advanced configuration option for turning off the HSTS configuration. Applicable only when SSL is in use. Defaults to true. See #138 for use case scenario.
NGINX_HSTS_MAXAGE	Advanced configuration option for setting the HSTS max-age in the gitlab nginx vHost configuration. Applicable only when SSL is in use. Defaults to 31536000.
NGINX_PROXY_BUFFERING	Enable proxy_buffering. Defaults to off.
NGINX_ACCEL_BUFFERING	Enable X-Accel-Buffering header. Default to no
NGINX_X_FORWARDED_PROTO	Advanced configuration option for the proxy_set_header X-Forwarded-Proto setting in the gitlab nginx vHost configuration. Defaults to https when GITLAB_HTTPS is true, else defaults to $scheme.
NGINX_REAL_IP_RECURSIVE	set to on if docker container runs behind a reverse proxy,you may not want the IP address of the proxy to show up as the client address. off by default.
NGINX_REAL_IP_TRUSTED_ADDRESSES	You can have NGINX look for a different address to use by adding your reverse proxy to the NGINX_REAL_IP_TRUSTED_ADDRESSES. Currently only a single entry is permitted. No defaults.
REDIS_HOST	The hostname of the redis server. Defaults to localhost
REDIS_PORT	The connection port of the redis server. Defaults to 6379.
REDIS_DB_NUMBER	The redis database number. Defaults to '0'.
PUMA_WORKERS	The number of puma workers to start. Defaults to 3.
PUMA_TIMEOUT	Sets the timeout of puma worker processes. Defaults to 60 seconds.
PUMA_THREADS_MIN	The number of puma minimum threads. Defaults to 1.
PUMA_THREADS_MAX	The number of puma maximum threads. Defaults to 16.
PUMA_PER_WORKER_MAX_MEMORY_MB	Maximum memory size of per puma worker process. Defaults to 850.
PUMA_MASTER_MAX_MEMORY_MB	Maximum memory size of puma master process. Defaults to 550.
SIDEKIQ_CONCURRENCY	The number of concurrent sidekiq jobs to run. Defaults to 25
SIDEKIQ_SHUTDOWN_TIMEOUT	Timeout for sidekiq shutdown. Defaults to 4
SIDEKIQ_MEMORY_KILLER_MAX_RSS	Non-zero value enables the SidekiqMemoryKiller. Defaults to 1000000. For additional options refer Configuring the MemoryKiller
GITLAB_SIDEKIQ_LOG_FORMAT	Sidekiq log format that will be used. Defaults to json
DB_ADAPTER	The database type. Currently only postgresql is supported. Over 12.1 postgres force. Possible values: postgresql. Defaults to postgresql.
DB_ENCODING	The database encoding. For DB_ADAPTER values postresql this parameter defaults and utf8 respectively.
DB_HOST	The database server hostname. Defaults to localhost.
DB_PORT	The database server port. Defaults to 5432 for postgresql.
DB_NAME	The database database name. Defaults to gitlabhq_production
DB_USER	The database database user. Defaults to root
DB_PASS	The database database password. Defaults to no password
DB_POOL	The database database connection pool count. Defaults to 10.
DB_PREPARED_STATEMENTS	Whether use database prepared statements. No defaults. But set to false if you want to use with PgBouncer
SMTP_ENABLED	Enable mail delivery via SMTP. Defaults to true if SMTP_USER is defined, else defaults to false.
SMTP_DOMAIN	SMTP domain. Defaults to www.gmail.com
SMTP_HOST	SMTP server host. Defaults to smtp.gmail.com.
SMTP_PORT	SMTP server port. Defaults to 587.
SMTP_USER	SMTP username.
SMTP_PASS	SMTP password.
SMTP_STARTTLS	Enable STARTTLS. Defaults to true.
SMTP_TLS	Enable SSL/TLS. Defaults to false.
SMTP_OPENSSL_VERIFY_MODE	SMTP openssl verification mode. Accepted values are none, peer, client_once and fail_if_no_peer_cert. Defaults to none.
SMTP_AUTHENTICATION	Specify the SMTP authentication method. Defaults to login if SMTP_USER is set.
SMTP_CA_ENABLED	Enable custom CA certificates for SMTP email configuration. Defaults to false.
SMTP_CA_PATH	Specify the ca_path parameter for SMTP email configuration. Defaults to /home/git/data/certs.
SMTP_CA_FILE	Specify the ca_file parameter for SMTP email configuration. Defaults to /home/git/data/certs/ca.crt.
IMAP_ENABLED	Enable mail delivery via IMAP. Defaults to true if IMAP_USER is defined, else defaults to false.
IMAP_HOST	IMAP server host. Defaults to imap.gmail.com.
IMAP_PORT	IMAP server port. Defaults to 993.
IMAP_USER	IMAP username.
IMAP_PASS	IMAP password.
IMAP_SSL	Enable SSL. Defaults to true.
IMAP_STARTTLS	Enable STARTSSL. Defaults to false.
IMAP_MAILBOX	The name of the mailbox where incoming mail will end up. Defaults to inbox.
LDAP_ENABLED	Enable LDAP. Defaults to false
LDAP_LABEL	Label to show on login tab for LDAP server. Defaults to 'LDAP'
LDAP_HOST	LDAP Host
LDAP_PORT	LDAP Port. Defaults to 389
LDAP_UID	LDAP UID. Defaults to sAMAccountName
LDAP_METHOD	LDAP method, Possible values are simple_tls, start_tls and plain. Defaults to plain
LDAP_VERIFY_SSL	LDAP verify ssl certificate for installations that are using LDAP_METHOD: 'simple_tls' or LDAP_METHOD: 'start_tls'. Defaults to true
LDAP_CA_FILE	Specifies the path to a file containing a PEM-format CA certificate. Defaults to ``
LDAP_SSL_VERSION	Specifies the SSL version for OpenSSL to use, if the OpenSSL default is not appropriate. Example: 'TLSv1_1'. Defaults to ``
LDAP_BIND_DN	No default.
LDAP_PASS	LDAP password
LDAP_TIMEOUT	Timeout, in seconds, for LDAP queries. Defaults to 10.
LDAP_ACTIVE_DIRECTORY	Specifies if LDAP server is Active Directory LDAP server. If your LDAP server is not AD, set this to false. Defaults to true,
LDAP_ALLOW_USERNAME_OR_EMAIL_LOGIN	If enabled, GitLab will ignore everything after the first '@' in the LDAP username submitted by the user on login. Defaults to false if LDAP_UID is userPrincipalName, else true.
LDAP_BLOCK_AUTO_CREATED_USERS	Locks down those users until they have been cleared by the admin. Defaults to false.
LDAP_BASE	Base where we can search for users. No default.
LDAP_USER_FILTER	Filter LDAP users. No default.
LDAP_USER_ATTRIBUTE_USERNAME	Attribute fields for the identification of a user. Default to ['uid', 'userid', 'sAMAccountName']
LDAP_USER_ATTRIBUTE_MAIL	Attribute fields for the shown mail address. Default to ['mail', 'email', 'userPrincipalName']
LDAP_USER_ATTRIBUTE_NAME	Attribute field for the used username of a user. Default to cn.
LDAP_USER_ATTRIBUTE_FIRSTNAME	Attribute field for the forename of a user. Default to givenName
LDAP_USER_ATTRIBUTE_LASTNAME	Attribute field for the surname of a user. Default to sn
LDAP_LOWERCASE_USERNAMES	GitLab will lower case the username for the LDAP Server. Defaults to false
OAUTH_ENABLED	Enable OAuth support. Defaults to true if any of the support OAuth providers is configured, else defaults to false.
OAUTH_AUTO_SIGN_IN_WITH_PROVIDER	Automatically sign in with a specific OAuth provider without showing GitLab sign-in page. Accepted values are cas3, github, bitbucket, gitlab, google_oauth2, facebook, twitter, saml, crowd, auth0 and azure_oauth2. No default.
OAUTH_ALLOW_SSO	Comma separated list of oauth providers for single sign-on. This allows users to login without having a user account. The account is created automatically when authentication is successful. Accepted values are cas3, github, bitbucket, gitlab, google_oauth2, facebook, twitter, saml, crowd, auth0 and azure_oauth2. No default.
OAUTH_BLOCK_AUTO_CREATED_USERS	Locks down those users until they have been cleared by the admin. Defaults to true.
OAUTH_AUTO_LINK_LDAP_USER	Look up new users in LDAP servers. If a match is found (same uid), automatically link the omniauth identity with the LDAP account. Defaults to false.
OAUTH_AUTO_LINK_SAML_USER	Allow users with existing accounts to login and auto link their account via SAML login, without having to do a manual login first and manually add SAML. Defaults to false.
OAUTH_EXTERNAL_PROVIDERS	Comma separated list if oauth providers to disallow access to internal projects. Users creating accounts via these providers will have access internal projects. Accepted values are cas3, github, bitbucket, gitlab, google_oauth2, facebook, twitter, saml, crowd, auth0 and azure_oauth2. No default.
OAUTH_CAS3_LABEL	The "Sign in with" button label. Defaults to "cas3".
OAUTH_CAS3_SERVER	CAS3 server URL. No defaults.
OAUTH_CAS3_DISABLE_SSL_VERIFICATION	Disable CAS3 SSL verification. Defaults to false.
OAUTH_CAS3_LOGIN_URL	CAS3 login URL. Defaults to /cas/login
OAUTH_CAS3_VALIDATE_URL	CAS3 validation URL. Defaults to /cas/p3/serviceValidate
OAUTH_CAS3_LOGOUT_URL	CAS3 logout URL. Defaults to /cas/logout
OAUTH_GOOGLE_API_KEY	Google App Client ID. No defaults.
OAUTH_GOOGLE_APP_SECRET	Google App Client Secret. No defaults.
OAUTH_GOOGLE_RESTRICT_DOMAIN	List of Google App restricted domains. Value is comma separated list of single quoted groups. Example: 'exemple.com','exemple2.com'. No defaults.
OAUTH_FACEBOOK_API_KEY	Facebook App API key. No defaults.
OAUTH_FACEBOOK_APP_SECRET	Facebook App API secret. No defaults.
OAUTH_TWITTER_API_KEY	Twitter App API key. No defaults.
OAUTH_TWITTER_APP_SECRET	Twitter App API secret. No defaults.
OAUTH_AUTHENTIQ_CLIENT_ID	authentiq Client ID. No defaults.
OAUTH_AUTHENTIQ_CLIENT_SECRET	authentiq Client secret. No defaults.
OAUTH_AUTHENTIQ_SCOPE	Scope of Authentiq Application Defaults to 'aq:name email~rs address aq:push'
OAUTH_AUTHENTIQ_REDIRECT_URI	Callback URL for Authentiq. No defaults.
OAUTH_GITHUB_API_KEY	GitHub App Client ID. No defaults.
OAUTH_GITHUB_APP_SECRET	GitHub App Client secret. No defaults.
OAUTH_GITHUB_URL	Url to the GitHub Enterprise server. Defaults to https://github.com
OAUTH_GITHUB_VERIFY_SSL	Enable SSL verification while communicating with the GitHub server. Defaults to true.
OAUTH_GITLAB_API_KEY	GitLab App Client ID. No defaults.
OAUTH_GITLAB_APP_SECRET	GitLab App Client secret. No defaults.
OAUTH_BITBUCKET_API_KEY	BitBucket App Client ID. No defaults.
OAUTH_BITBUCKET_APP_SECRET	BitBucket App Client secret. No defaults.
OAUTH_SAML_ASSERTION_CONSUMER_SERVICE_URL	The URL at which the SAML assertion should be received. When GITLAB_HTTPS=true, defaults to https://${GITLAB_HOST}/users/auth/saml/callback else defaults to http://${GITLAB_HOST}/users/auth/saml/callback.
OAUTH_SAML_IDP_CERT_FINGERPRINT	The SHA1 fingerprint of the certificate. No Defaults.
OAUTH_SAML_IDP_SSO_TARGET_URL	The URL to which the authentication request should be sent. No defaults.
OAUTH_SAML_ISSUER	The name of your application. When GITLAB_HTTPS=true, defaults to https://${GITLAB_HOST} else defaults to http://${GITLAB_HOST}.
OAUTH_SAML_LABEL	The "Sign in with" button label. Defaults to "Our SAML Provider".
OAUTH_SAML_NAME_IDENTIFIER_FORMAT	Describes the format of the username required by GitLab, Defaults to urn:oasis:names:tc:SAML:2.0:nameid-format:transient
OAUTH_SAML_GROUPS_ATTRIBUTE	Map groups attribute in a SAMLResponse to external groups. No defaults.
OAUTH_SAML_EXTERNAL_GROUPS	List of external groups in a SAMLResponse. Value is comma separated list of single quoted groups. Example: 'group1','group2'. No defaults.
OAUTH_SAML_ATTRIBUTE_STATEMENTS_EMAIL	Map 'email' attribute name in a SAMLResponse to entries in the OmniAuth info hash, No defaults. See GitLab documentation for more details.
OAUTH_SAML_ATTRIBUTE_STATEMENTS_USERNAME	Map 'username' attribute in a SAMLResponse to entries in the OmniAuth info hash, No defaults. See GitLab documentation for more details.
OAUTH_SAML_ATTRIBUTE_STATEMENTS_NAME	Map 'name' attribute in a SAMLResponse to entries in the OmniAuth info hash, No defaults. See GitLab documentation for more details.
OAUTH_SAML_ATTRIBUTE_STATEMENTS_FIRST_NAME	Map 'first_name' attribute in a SAMLResponse to entries in the OmniAuth info hash, No defaults. See GitLab documentation for more details.
OAUTH_SAML_ATTRIBUTE_STATEMENTS_LAST_NAME	Map 'last_name' attribute in a SAMLResponse to entries in the OmniAuth info hash, No defaults. See GitLab documentation for more details.
OAUTH_CROWD_SERVER_URL	Crowd server url. No defaults.
OAUTH_CROWD_APP_NAME	Crowd server application name. No defaults.
OAUTH_CROWD_APP_PASSWORD	Crowd server application password. No defaults.
OAUTH_AUTH0_CLIENT_ID	Auth0 Client ID. No defaults.
OAUTH_AUTH0_CLIENT_SECRET	Auth0 Client secret. No defaults.
OAUTH_AUTH0_DOMAIN	Auth0 Domain. No defaults.
OAUTH_AUTH0_SCOPE	Auth0 Scope. Defaults to openid profile email.
OAUTH_AZURE_API_KEY	Azure Client ID. No defaults.
OAUTH_AZURE_API_SECRET	Azure Client secret. No defaults.
OAUTH_AZURE_TENANT_ID	Azure Tenant ID. No defaults.
OAUTH2_GENERIC_APP_ID	Your OAuth2 App ID. No defaults.
OAUTH2_GENERIC_APP_SECRET	Your OAuth2 App Secret. No defaults.
OAUTH2_GENERIC_CLIENT_SITE	The OAuth2 generic client site. No defaults
OAUTH2_GENERIC_CLIENT_USER_INFO_URL	The OAuth2 generic client user info url. No defaults
OAUTH2_GENERIC_CLIENT_AUTHORIZE_URL	The OAuth2 generic client authorize url. No defaults
OAUTH2_GENERIC_CLIENT_TOKEN_URL	The OAuth2 generic client token url. No defaults
OAUTH2_GENERIC_CLIENT_END_SESSION_ENDPOINT	The OAuth2 generic client end session endpoint. No defaults
OAUTH2_GENERIC_ID_PATH	The OAuth2 generic id path. No defaults
OAUTH2_GENERIC_USER_UID	The OAuth2 generic user id path. No defaults
OAUTH2_GENERIC_USER_NAME	The OAuth2 generic user name. No defaults
OAUTH2_GENERIC_USER_EMAIL	The OAuth2 generic user email. No defaults
OAUTH2_GENERIC_NAME	The name of your OAuth2 provider. No defaults
GITLAB_GRAVATAR_ENABLED	Enables gravatar integration. Defaults to true.
GITLAB_GRAVATAR_HTTP_URL	Sets a custom gravatar url. Defaults to http://www.gravatar.com/avatar/%{hash}?s=%{size}&d=identicon. This can be used for Libravatar integration.
GITLAB_GRAVATAR_HTTPS_URL	Same as above, but for https. Defaults to https://secure.gravatar.com/avatar/%{hash}?s=%{size}&d=identicon.
USERMAP_UID	Sets the uid for user git to the specified uid. Defaults to 1000.
USERMAP_GID	Sets the gid for group git to the specified gid. Defaults to USERMAP_UID if defined, else defaults to 1000.
GOOGLE_ANALYTICS_ID	Google Analytics ID. No defaults.
PIWIK_URL	Sets the Piwik URL. No defaults.
PIWIK_SITE_ID	Sets the Piwik site ID. No defaults.
AWS_BACKUPS	Enables automatic uploads to an Amazon S3 instance. Defaults to false.
AWS_BACKUP_REGION	AWS region. No defaults.
AWS_BACKUP_ENDPOINT	AWS endpoint. No defaults.
AWS_BACKUP_ACCESS_KEY_ID	AWS access key id. No defaults.
AWS_BACKUP_SECRET_ACCESS_KEY	AWS secret access key. No defaults.
AWS_BACKUP_BUCKET	AWS bucket for backup uploads. No defaults.
AWS_BACKUP_MULTIPART_CHUNK_SIZE	Enables mulitpart uploads when file size reaches a defined size. See at AWS S3 Docs
AWS_BACKUP_ENCRYPTION	Turns on AWS Server-Side Encryption. Defaults to false. See at AWS S3 Docs
AWS_BACKUP_STORAGE_CLASS	Configure the storage class for the item. Defaults to STANDARD See at AWS S3 Docs
AWS_BACKUP_SIGNATURE_VERSION	Configure the storage signature version. Defaults to 4 See at AWS S3 Docs
GCS_BACKUPS	Enables automatic uploads to an Google Cloud Storage (GCS) instance. Defaults to false.
GCS_BACKUP_ACCESS_KEY_ID	GCS access key id. No defaults
GCS_BACKUP_SECRET_ACCESS_KEY	GCS secret access key. No defaults
GCS_BACKUP_BUCKET	GCS bucket for backup uploads. No defaults
GITLAB_ROBOTS_PATH	Location of custom robots.txt. Uses GitLab's default robots.txt configuration by default. See www.robotstxt.org for examples.
RACK_ATTACK_ENABLED	Enable/disable rack middleware for blocking & throttling abusive requests Defaults to true.
RACK_ATTACK_WHITELIST	Always allow requests from whitelisted host. Defaults to 127.0.0.1
RACK_ATTACK_MAXRETRY	Number of failed auth attempts before which an IP should be banned. Defaults to 10
RACK_ATTACK_FINDTIME	Number of seconds before resetting the per IP auth attempt counter. Defaults to 60.
RACK_ATTACK_BANTIME	Number of seconds an IP should be banned after too many auth attempts. Defaults to 3600.
GITLAB_WORKHORSE_TIMEOUT	Timeout for gitlab workhorse http proxy. Defaults to 5m0s.
SENTRY_ENABLED	Enables Error Reporting and Logging with Sentry. Defaults to false.
SENTRY_DSN	Sentry DSN. No defaults.
SENTRY_CLIENTSIDE_DSN	Sentry clientside DSN. No defaults.
SENTRY_ENVIRONMENT	Sentry environment. Defaults to production.

Docker secrets and configs

All the above environment variables can be put into a secrets or config file and then both docker-compose and Docker Swarm can import them into your gitlab container.

On startup, the gitlab container will source env vars from a config file labeled gitlab-config, and then a secrets file labeled gitlab-secrets (both mounted in the default locations).

See the example contrib/docker-swarm/docker-compose.yml file, and the example gitlab.configs and gitlab.secrets file. You may as well choose file names other than the example source files (gitlab.configs and gitlab.secrets) and update the file: ./gitlab.configs and file: ./gitlab.secrets references accordingly. But do not alter the config keys gitlab-configs and gitlab-secrets as they are currently hardcoded and thus must be kept as in the example.

If you're not using one of these files, then don't include its entry in the docker-compose file.

Maintenance

Creating backups

GitLab defines a rake task to take a backup of your gitlab installation. The backup consists of all git repositories, uploaded files and as you might expect, the sql database.

Before taking a backup make sure the container is stopped and removed to avoid container name conflicts.

docker stop gitlab && docker rm gitlab

Execute the rake task to create a backup.

docker run --name gitlab -it --rm [OPTIONS] \
    sameersbn/gitlab:13.0.6 app:rake gitlab:backup:create

A backup will be created in the backups folder of the Data Store. You can change the location of the backups using the GITLAB_BACKUP_DIR configuration parameter.

P.S. Backups can also be generated on a running instance using docker exec as described in the Rake Tasks section. However, to avoid undesired side-effects, I advice against running backup and restore operations on a running instance.

When using docker-compose you may use the following command to execute the backup.

docker-compose rm -sf gitlab
docker-compose run --rm gitlab app:rake gitlab:backup:create

Afterwards you can bring your Instance back with the following command:

docker-compose up -d

Restoring Backups

GitLab also defines a rake task to restore a backup.

Before performing a restore make sure the container is stopped and removed to avoid container name conflicts.

docker stop gitlab && docker rm gitlab

If this is a fresh database that you're doing the restore on, first you need to prepare the database:

docker run --name gitlab -it --rm [OPTIONS] \
    sameersbn/gitlab:13.0.6 app:rake db:setup

Execute the rake task to restore a backup. Make sure you run the container in interactive mode -it.

docker run --name gitlab -it --rm [OPTIONS] \
    sameersbn/gitlab:13.0.6 app:rake gitlab:backup:restore

The list of all available backups will be displayed in reverse chronological order. Select the backup you want to restore and continue.

To avoid user interaction in the restore operation, specify the timestamp, date and version of the backup using the BACKUP argument to the rake task.

docker run --name gitlab -it --rm [OPTIONS] \
    sameersbn/gitlab:13.0.6 app:rake gitlab:backup:restore BACKUP=1515629493_2020_12_06_13.0.6

When using docker-compose you may use the following command to execute the restore.

docker-compose run --rm gitlab app:rake gitlab:backup:restore # List available backups
docker-compose run --rm gitlab app:rake gitlab:backup:restore BACKUP=1515629493_2020_12_06_13.0.6 # Choose to restore from 1515629493

Host Key Backups (ssh)

SSH keys are not backed up in the normal gitlab backup process. You will need to backup the ssh/ directory in the data volume by hand and you will want to restore it prior to doing a gitlab restore.

Automated Backups

The image can be configured to automatically take backups daily, weekly or monthly using the GITLAB_BACKUP_SCHEDULE configuration option.

Daily backups are created at GITLAB_BACKUP_TIME which defaults to 04:00 everyday. Weekly backups are created every Sunday at the same time as the daily backups. Monthly backups are created on the 1st of every month at the same time as the daily backups.

By default, when automated backups are enabled, backups are held for a period of 7 days. While when automated backups are disabled, the backups are held for an infinite period of time. This behavior can be configured via the GITLAB_BACKUP_EXPIRY option.

Amazon Web Services (AWS) Remote Backups

The image can be configured to automatically upload the backups to an AWS S3 bucket. To enable automatic AWS backups first add --env 'AWS_BACKUPS=true' to the docker run command. In addition AWS_BACKUP_REGION and AWS_BACKUP_BUCKET must be properly configured to point to the desired AWS location. Finally an IAM user must be configured with appropriate access permission and their AWS keys exposed through AWS_BACKUP_ACCESS_KEY_ID and AWS_BACKUP_SECRET_ACCESS_KEY.

More details about the appropriate IAM user properties can found on doc.gitlab.com

For remote backup to selfhosted s3 compatible storage, use AWS_BACKUP_ENDPOINT.

AWS uploads are performed alongside normal backups, both through the appropriate app:rake command and when an automatic backup is performed.

Google Cloud Storage (GCS) Remote Backups

The image can be configured to automatically upload the backups to an Google Cloud Storage bucket. To enable automatic GCS backups first add --env 'GCS_BACKUPS=true' to the docker run command. In addition GCS_BACKUP_BUCKET must be properly configured to point to the desired GCS location. Finally a couple of Interoperable storage access keys user must be created and their keys exposed through GCS_BACKUP_ACCESS_KEY_ID and GCS_BACKUP_SECRET_ACCESS_KEY.

More details about the Cloud storage interoperability properties can found on cloud.google.com/storage

GCS uploads are performed alongside normal backups, both through the appropriate app:rake command and when an automatic backup is performed.

Rake Tasks

The app:rake command allows you to run gitlab rake tasks. To run a rake task simply specify the task to be executed to the app:rake command. For example, if you want to gather information about GitLab and the system it runs on.

docker run --name gitlab -it --rm [OPTIONS] \
    sameersbn/gitlab:13.0.6 app:rake gitlab:env:info

You can also use docker exec to run raketasks on running gitlab instance. For example,

docker exec --user git -it gitlab bundle exec rake gitlab:env:info RAILS_ENV=production

Similarly, to import bare repositories into GitLab project instance

docker run --name gitlab -it --rm [OPTIONS] \
    sameersbn/gitlab:13.0.6 app:rake gitlab:import:repos

Or

docker exec -it gitlab sudo -HEu git bundle exec rake gitlab:import:repos RAILS_ENV=production

For a complete list of available rake tasks please refer https://github.com/gitlabhq/gitlabhq/tree/master/doc/raketasks or the help section of your gitlab installation.

P.S. Please avoid running the rake tasks for backup and restore operations on a running gitlab instance.

To use the app:rake command with docker-compose use the following command.

# For stopped instances
docker-compose run --rm gitlab app:rake gitlab:env:info
docker-compose run --rm gitlab app:rake gitlab:import:repos

# For running instances
docker-compose exec --user git gitlab bundle exec rake gitlab:env:info RAILS_ENV=production
docker-compose exec gitlab sudo -HEu git bundle exec rake gitlab:import:repos RAILS_ENV=production

Import Repositories

Copy all the bare git repositories to the repositories/ directory of the data store and execute the gitlab:import:repos rake task like so:

docker run --name gitlab -it --rm [OPTIONS] \
    sameersbn/gitlab:13.0.6 app:rake gitlab:import:repos

Watch the logs and your repositories should be available into your new gitlab container.

See Rake Tasks for more information on executing rake tasks. Usage when using docker-compose can also be found there.

Upgrading

Important Notice

Since GitLab release 8.6.0 PostgreSQL users should enable pg_trgm extension on the GitLab database. Refer to GitLab's Postgresql Requirements for more information

If you're using sameersbn/postgresql then please upgrade to sameersbn/postgresql:9.4-18 or later and add DB_EXTENSION=pg_trgm to the environment of the PostgreSQL container (see: https://github.com/sameersbn/docker-gitlab/blob/master/docker-compose.yml#L8).

GitLabHQ releases new versions on the 22nd of every month, bugfix releases immediately follow. I update this project almost immediately when a release is made (at least it has been the case so far). If you are using the image in production environments I recommend that you delay updates by a couple of days after the gitlab release, allowing some time for the dust to settle down.

To upgrade to newer gitlab releases, simply follow this 4 step upgrade procedure.

Note

Upgrading to sameersbn/gitlab:13.0.6 from sameersbn/gitlab:7.x.x can cause issues. It is therefore required that you first upgrade to sameersbn/gitlab:8.0.5-1 before upgrading to sameersbn/gitlab:8.1.0 or higher.

• Step 1: Update the docker image.

docker pull sameersbn/gitlab:13.0.6

• Step 2: Stop and remove the currently running image

docker stop gitlab
docker rm gitlab

• Step 3: Create a backup

docker run --name gitlab -it --rm [OPTIONS] \
    sameersbn/gitlab:x.x.x app:rake gitlab:backup:create

Replace x.x.x with the version you are upgrading from. For example, if you are upgrading from version 6.0.0, set x.x.x to 6.0.0

• Step 4: Start the image

Note: Since GitLab 8.0.0 you need to provide the GITLAB_SECRETS_DB_KEY_BASE parameter while starting the image.

Note: Since GitLab 8.11.0 you need to provide the GITLAB_SECRETS_SECRET_KEY_BASE and GITLAB_SECRETS_OTP_KEY_BASE parameters while starting the image. These should initially both have the same value as the contents of the /home/git/data/.secret file. See Available Configuration Parameters for more information on these parameters.

docker run --name gitlab -d [OPTIONS] sameersbn/gitlab:13.0.6

Shell Access

For debugging and maintenance purposes you may want access the containers shell. If you are using docker version 1.3.0 or higher you can access a running containers shell using docker exec command.

docker exec -it gitlab bash

Monitoring

You can monitor your GitLab instance status as described in the official documentation, for example:

curl 'https://gitlab.example.com/-/liveness'

On success, the endpoint will return a 200 HTTP status code, and a response like below.

{
   "status": "ok"
}

To do that you will need to set the environment variable GITLAB_MONITORING_IP_WHITELIST to allow your IP or subnet to make requests to your GitLab instance.

Health Check

You can also set your docker-compose.yml healthcheck configuration to make periodic checks:

version: '2.3'

services:
  gitlab:
    image: sameersbn/gitlab:13.0.6
    healthcheck:
      test: ["CMD", "/usr/local/sbin/healthcheck"]
      interval: 1m
      timeout: 5s
      retries: 5
      start_period: 2m

Then you will be able to consult the healthcheck log by executing:

docker inspect --format "{{json .State.Health }}" $(docker-compose ps -q gitlab) | jq

References

• https://github.com/gitlabhq/gitlabhq
• https://github.com/gitlabhq/gitlabhq/blob/master/doc/install/installation.md
• http://wiki.nginx.org/HttpSslModule
• https://raymii.org/s/tutorials/Strong_SSL_Security_On_nginx.html
• https://github.com/gitlabhq/gitlab-recipes/blob/master/web-server/nginx/gitlab-ssl
• https://github.com/jpetazzo/nsenter
• https://jpetazzo.github.io/2014/03/23/lxc-attach-nsinit-nsenter-docker-0-9/