Pleroma
Pleroma is a federated social networking platform, compatible with GNU social and other OStatus implementations. It is free software licensed under the AGPLv3.
It actually consists of two components: a backend, named simply Pleroma, and a user-facing frontend, named Pleroma-FE.
Its main advantages are its lightness and speed.
Pleromians trying to understand the memes
Features
- Based on the elixir:alpine image
- Ran as an unprivileged user
- It works great
Sadly, this is not a reusable (e.g. I can't upload it to the Docker Hub), because for now Pleroma needs to compile the configuration. 😢 Thus you will need to build the image yourself, but I explain how to do it below.
Build-time variables
PLEROMA_VER
: Pleroma version (latest commit of thedevelop
branch by default)GID
: group id (default:911
)UID
: user id (default:911
)
Usage
Installation
Create a folder for your Pleroma instance. Inside, you should have Dockerfile
and docker-compose.yml
from this repo.
Here is the docker-compose.yml
. You should change the POSTGRES_PASSWORD
variable.
version: '2.3'
services:
postgres:
image: postgres:9.6-alpine
container_name: pleroma_postgres
restart: always
environment:
POSTGRES_USER: pleroma
POSTGRES_PASSWORD: pleroma
POSTGRES_DB: pleroma
volumes:
- ./postgres:/var/lib/postgresql/data
web:
build: .
image: pleroma
container_name: pleroma_web
restart: always
ports:
- "127.0.0.1:4000:4000"
volumes:
- ./uploads:/pleroma/uploads
depends_on:
- postgres
Create the upload and config folder and give write permissions for the uploads:
mkdir uploads config
chown -R 911:911 uploads
Pleroma needs the citext
PostgreSQL extension, here is how to add it:
docker-compose up -d postgres
docker exec -i pleroma_postgres psql -U pleroma -c "CREATE EXTENSION IF NOT EXISTS citext;"
docker-compose down
Configure Pleroma. Copy the following to config/secret.exs
:
use Mix.Config
config :pleroma, Pleroma.Web.Endpoint,
http: [ ip: {0, 0, 0, 0}, ],
url: [host: "pleroma.domain.tld", scheme: "https", port: 443],
secret_key_base: "<use 'openssl rand -base64 48' to generate a key>"
config :pleroma, :instance,
name: "Pleroma",
email: "admin@email.tld",
limit: 5000,
registrations_open: true
config :pleroma, :media_proxy,
enabled: false,
redirect_on_failure: true,
base_url: "https://cache.domain.tld"
# Configure your database
config :pleroma, Pleroma.Repo,
adapter: Ecto.Adapters.Postgres,
username: "pleroma",
password: "pleroma",
database: "pleroma",
hostname: "postgres",
pool_size: 10
You need to change at least:
host
secret_key_base
email
Make sure your PostgreSQL parameters are ok.
You can now build the image. 2 way of doing it:
docker-compose build
# or
docker build -t pleroma .
I prefer the latter because it's more verbose.
Setup the database:
docker-compose run --rm web mix ecto.migrate
Get your web push keys and copy them to secret.exs
:
docker-compose run --rm web mix web_push.gen.keypair
You will need to build the image again, to pick up your updated secret.exs
file:
docker-compose build
# or
docker build -t pleroma .
You can now launch your instance:
docker-compose up -d
Check if everything went well with:
docker logs -f pleroma_web
You can now setup a Nginx reverse proxy in a container or on your host by using the example Nginx config.
Update
By default, the Dockerfile will be built from the latest commit of the develop
branch as Pleroma does not have releases for now.
Thus to update, just rebuild your image and recreate your containers:
docker-compose pull # update the PostgreSQL if needed
docker-compose build .
# or
docker build -t pleroma .
docker-compose run --rm web mix ecto.migrate # migrate the database if needed
docker-compose up -d # recreate the containers if needed
If you want to run a specific commit, you can use the PLEROMA_VER
variable:
docker build -t pleroma . --build-arg PLEROMA_VER=a9203ab3
a9203ab3
being the hash of the commit. (They're here)
Other Docker images
Here are other Pleroma Docker images that helped me build mine: