In order to unify the approaches followed for Bitnami containers and Bitnami Helm charts, we are moving the different bitnami/bitnami-docker-<container>
repositories to a single monorepo bitnami/containers
. Please follow bitnami/containers to keep you updated about the latest Bitnami images.
More information here: https://blog.bitnami.com/2022/07/new-source-of-truth-bitnami-containers.html
Ruby packaged by Bitnami
What is Ruby?
Ruby on Rails is a full-stack development environment optimized for programmer happiness and sustainable productivity. It lets you write beautiful code by favoring convention over configuration.
Trademarks: This software listing is packaged by Bitnami. The respective trademarks mentioned in the offering are owned by the respective companies, and use of them does not imply any affiliation or endorsement.
TL;DR
$ docker run -it --name ruby bitnami/ruby:latest
Docker Compose
$ curl -sSL https://raw.githubusercontent.com/bitnami/bitnami-docker-ruby/master/docker-compose.yml > docker-compose.yml
$ docker-compose up -d
Why use Bitnami Images?
- Bitnami closely tracks upstream source changes and promptly publishes new versions of this image using our automated systems.
- With Bitnami images the latest bug fixes and features are available as soon as possible.
- Bitnami containers, virtual machines and cloud images use the same components and configuration approach - making it easy to switch between formats based on your project needs.
- All our images are based on minideb a minimalist Debian based container image which gives you a small base container image and the familiarity of a leading Linux distribution.
- All Bitnami images available in Docker Hub are signed with Docker Content Trust (DCT). You can use
DOCKER_CONTENT_TRUST=1
to verify the integrity of the images. - Bitnami container images are released on a regular basis with the latest distribution packages available.
Dockerfile
links
Supported tags and respective Learn more about the Bitnami tagging policy and the difference between rolling tags and immutable tags in our documentation page.
3.1
,3.1-debian-11
,3.1.2
,3.1.2-debian-11-r22
,latest
(3.1/debian-11/Dockerfile)3.0
,3.0-debian-11
,3.0.4
,3.0.4-debian-11-r20
(3.0/debian-11/Dockerfile)2.7
,2.7-debian-11
,2.7.6
,2.7.6-debian-11-r21
(2.7/debian-11/Dockerfile)
Subscribe to project updates by watching the bitnami/ruby GitHub repo.
Deprecation Note (2022-01-21)
The prod
tags has been removed; from now on just the regular container images will be released.
Deprecation Note (2020-08-18)
The formatting convention for prod
tags has been changed:
BRANCH-debian-10-prod
is now tagged asBRANCH-prod-debian-10
VERSION-debian-10-rX-prod
is now tagged asVERSION-prod-debian-10-rX
latest-prod
is now deprecated
Get this image
The recommended way to get the Bitnami Ruby Docker Image is to pull the prebuilt image from the Docker Hub Registry.
$ docker pull bitnami/ruby:latest
To use a specific version, you can pull a versioned tag. You can view the list of available versions in the Docker Hub Registry.
$ docker pull bitnami/ruby:[TAG]
If you wish, you can also build the image yourself.
$ docker build -t bitnami/ruby:latest 'https://github.com/bitnami/bitnami-docker-ruby.git#master:3.1/debian-11'
Entering the REPL
By default, running this image will drop you into the Ruby REPL (irb
), where you can interactively test and try things out in Ruby.
$ docker run -it --name ruby bitnami/ruby:latest
Further Reading:
Configuration
Running your Ruby script
The default work directory for the Ruby image is /app
. You can mount a folder from your host here that includes your Ruby script, and run it normally using the ruby
command.
$ docker run -it --name ruby -v /path/to/app:/app bitnami/ruby:latest \
ruby script.rb
Running a Ruby app with gems
If your Ruby app has a Gemfile
defining your app's dependencies and start script, you can install the dependencies before running your app.
$ docker run -it --name ruby -v /path/to/app:/app bitnami/ruby:latest \
sh -c "bundle install && ruby script.rb"
or by modifying the docker-compose.yml
file present in this repository:
ruby:
...
command: "sh -c 'bundle install && ruby script.rb'"
volumes:
- .:/app
...
Further Reading:
Accessing a Ruby app running a web server
This image exposes port 3000
in the container, so you should ensure that your web server is binding to port 3000
, as well as listening on 0.0.0.0
to accept remote connections from your host.
Below is an example of a Sinatra app listening to remote connections on port 3000
:
require 'sinatra'
set :bind, '0.0.0.0'
set :port, 3000
get '/hi' do
"Hello World!"
end
To access your web server from your host machine you can ask Docker to map a random port on your host to port 3000
inside the container.
$ docker run -it --name ruby -P bitnami/ruby:latest
Run docker port
to determine the random port Docker assigned.
$ docker port ruby
3000/tcp -> 0.0.0.0:32769
You can also manually specify the port you want forwarded from your host to the container.
$ docker run -it --name ruby -p 8080:3000 bitnami/ruby:latest
Access your web server in the browser by navigating to http://localhost:8080
.
Connecting to other containers
If you want to connect to your Ruby web server inside another container, you can use docker networking to create a network and attach all the containers to that network.
Serving your Ruby app through an nginx frontend
We may want to make our Ruby web server only accessible via an nginx web server. Doing so will allow us to setup more complex configuration, serve static assets using nginx, load balance to different Ruby instances, etc.
Step 1: Create a network
$ docker network create app-tier --driver bridge
or using Docker Compose:
version: '2'
networks:
app-tier:
driver: bridge
Step 2: Create a virtual host
Let's create an nginx virtual host to reverse proxy to our Ruby container.
server {
listen 0.0.0.0:80;
server_name yourapp.com;
location / {
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header HOST $http_host;
proxy_set_header X-NginX-Proxy true;
# proxy_pass http://[your_ruby_container_link_alias]:3000;
proxy_pass http://myapp:3000;
proxy_redirect off;
}
}
Notice we've substituted the link alias name myapp
, we will use the same name when creating the container.
Copy the virtual host above, saving the file somewhere on your host. We will mount it as a volume in our nginx container.
Step 3: Run the Ruby image with a specific name
$ docker run -it --name myapp \
--network app-tier \
-v /path/to/app:/app \
bitnami/ruby:latest ruby script.rb
or using Docker Compose:
version: '2'
myapp:
image: bitnami/ruby:latest
command: ruby script.rb
networks:
- app-tier
volumes:
- .:/app
Step 4: Run the nginx image
$ docker run -it \
-v /path/to/vhost.conf:/bitnami/nginx/conf/vhosts/yourapp.conf \
--network app-tier \
bitnami/nginx:latest
or using Docker Compose:
version: '2'
nginx:
image: bitnami/nginx:latest
networks:
- app-tier
volumes:
- /path/to/vhost.conf:/bitnami/nginx/conf/vhosts/yourapp.conf
Maintenance
Upgrade this image
Bitnami provides up-to-date versions of Ruby, including security patches, soon after they are made upstream. We recommend that you follow these steps to upgrade your container.
Step 1: Get the updated image
$ docker pull bitnami/ruby:latest
or if you're using Docker Compose, update the value of the image property to bitnami/ruby:latest
.
Step 2: Remove the currently running container
$ docker rm -v ruby
or using Docker Compose:
$ docker-compose rm -v ruby
Step 3: Run the new image
Re-create your container from the new image.
$ docker run --name ruby bitnami/ruby:latest
or using Docker Compose:
$ docker-compose up ruby
Notable Changes
2.3.1-r0 (2016-05-11)
- Commands are now executed as the
root
user. Use the--user
argument to switch to another user or change to the required user usingsudo
to launch applications. Alternatively, as of Docker 1.10 User Namespaces are supported by the docker daemon. Refer to the daemon user namespace options for more details.
2.2.3-0-r02 (2015-09-30)
/app
directory no longer exported as a volume. This caused problems when building on top of the image, since changes in the volume were not persisted between RUN commands. To keep the previous behavior (so that you can mount the volume in another container), create the container with the-v /app
option.
2.2.3-0-r01 (2015-08-26)
- Permissions fixed so
bitnami
user can install gems without needingsudo
.
Contributing
We'd love for you to contribute to this Docker image. You can request new features by creating an issue, or submit a pull request with your contribution.
Issues
If you encountered a problem running this container, you can file an issue. For us to provide better support, be sure to include the following information in your issue:
- Host OS and version
- Docker version (
docker version
) - Output of
docker info
- Version of this container
- The command you used to run the container, and any relevant output you saw (masking any sensitive information)
License
Copyright © 2022 Bitnami
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.