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Docker Deployment Guide (Alternative)

This guide is still WIP. Not all the steps have been fully verified yet.

For bare metal see: Admin Bare Metal Guide.

System Requirements

  • Docker Engine
  • Docker Compose V2

If you are using Compose V1, replace docker compose with docker-compose in those commands below.

Note /kbin is still in the early stages of development.

Note: This guide is using the v2 docker files.

Docker Install

The most convenient way to install docker is using the official convenience script provided at get.docker.com:

curl -fsSL https://get.docker.com -o get-docker.sh
sudo sh get-docker.sh

Alternatively, you can follow the Docker install documentation for your platform.

Once Docker is installed on your system, it is recommended to create a docker group and add it to your user:

sudo groupadd docker
sudo usermod -aG docker $USER

Kbin Installation

Preparation

Clone git repository:

git clone https://codeberg.org/Kbin/kbin-core.git
cd kbin-core

Build the Docker image:

Note If you're using a version of Docker Engine earlier than 23.0, run export DOCKER_BUILDKIT=1, prior to building the image. This does not apply to users running Docker Desktop. More info can be found here

docker build -t kbin -f docker/v2/Dockerfile .

Create config files and storage directories:

cd docker/v2
cp ../../.env.example_v2 .env
cp docker-compose.prod.yml docker-compose.override.yml
mkdir -p storage/media storage/caddy_config storage/caddy_data
sudo chown 1000:82 storage/media storage/caddy_config storage/caddy_data

Configure .env

  1. Choose your Redis password, PostgreSQL password, RabbitMQ password, and Mercure password.
  2. Place them in the corresponding variables in both .env and docker-compose.override.yml.
  3. Change the values in your .env file as followings. (If you change the service names and the listening ports of the services in your docker-compose.yml, update the following values correspondingly.)
REDIS_HOST=redis:6379
POSTGRES_HOST=db:5432
RABBITMQ_HOST=rabbitmq:5672
MERCURE_HOST=www:80

Configure OAuth2 keys

  1. Create an RSA key pair using OpenSSL:
mkdir ./config/oauth2/
# If you protect the key with a passphrase, make sure to remember it!
# You will need it later
openssl genrsa -des3 -out ./config/oauth2/private.pem 4096
openssl rsa -in ./config/oauth2/private.pem --outform PEM -pubout -out ./config/oauth2/public.pem
  1. Generate a random hex string for the OAuth2 encryption key:
openssl rand -hex 16
  1. Add the public and private key paths to .env:
OAUTH_PRIVATE_KEY=%kernel.project_dir%/config/oauth2/private.pem
OAUTH_PUBLIC_KEY=%kernel.project_dir%/config/oauth2/public.pem
OAUTH_PASSPHRASE=<Your (optional) passphrase from above here>
OAUTH_ENCRYPTION_KEY=<Hex string generated in previous step>

Running the containers

By default docker compose will execute the docker-compose.yml and docker-compose.override.yml files.

Run the container in the background (-d means detached, but this can also be omitted for testing):

docker compose up -d

See your running containers via: docker ps.

Then, you should be able to access the new instance via http://localhost.
You can also access RabbitMQ management UI via http://localhost:15672.

Kbin first setup

Create new admin user (without email verification), please change the username, email and password below:

docker compose exec php bin/console kbin:user:create <username> <email@example.com> <password>
docker compose exec php bin/console kbin:user:admin <username>
docker compose exec php bin/console kbin:ap:keys:update

Next, log in and create a magazine named "random" to which unclassified content from the fediverse will flow.

Add auxiliary containers to docker-compose.yml

Add any auxiliary container as you want. For example, add a Nginx container as reverse proxy to provide HTTPS encryption.

Uploaded media files

Uploaded media files (e.g. photos uploaded by users) will be stored on the host directory storage/media. They will be served by the Caddy web server in the www container as static files.

Make sure KBIN_STORAGE_URL in your .env configuration file is set to be https://yourdomain.tld/media (assuming you setup Nginx with SSL certificate by now).

You can also serve those media files on another server by mirroring the files at storage/media and changing KBIN_STORAGE_URL correspondingly.

Filesystem ACL support

The filesystem ACL is disabled by default, in the kbin image. You can set the environment variable ENABLE_ACL=1 to enable it. Remember that not all filesystems support ACL. This will cause an error if you enable filesystem ACL for such filesystems.

Production

If you created the file docker-compose.override.yml with your configs (cp docker-compose.prod.yml docker-compose.override.yml), running production would be the same command:

docker compose up -d

See also the official: Deploying in Production guide.

If you want to deploy your app on a cluster of machines, you can use Docker Swarm, which is compatible with the provided Compose files.

Clear cache

docker compose exec php bin/console cache:clear
docker compose exec redis redis-cli
> auth REDIS_PASSWORD
> FLUSHDB

Backup and restore

docker exec -it container_id pg_dump -U kbin kbin > dump.sql
docker compose exec -T database psql -U kbin kbin < dump.sql