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A Docker image to run Capistrano

Go to Capistrano's GitHub or on Capistrano's website

You can find the image on Docker Hub and on GitHub

Docker Pulls

How to use it

Folder and file structure

./deploy
├── Capfile
├── config
│   ├── deploy-server1
│   │   ├── production.rb
│   │   └── staging.rb
│   ├── deploy-server2
│   │   ├── production.rb
│   │   └── staging.rb
│   └── deploy.rb
├── launch.sh

3 directories, 7 files

launch.sh

#!/bin/sh -eu

echo "Start SSH agent"
eval $(ssh-agent -s)
ssh-add $SSH_KEY
ssh-add -l

echo "Deploying ($BRANCH) ..."
bundle exec cap $ENV_NAME deploy BRANCH="$BRANCH" SSH_KEY="$SSH_KEY"

Command line

# For Capistrano logs (https://capistranorb.com/documentation/getting-started/configuration/) LOGNAME and USERNAME are needed

# Example: ./deploy/config/deploy-server1

docker run \

    # Mount some files and folders referenced in .rb configs
    -v /root/deploy/composer.lock:/deploy/composer.lock:rw \
    -v /root/deploy/envs:/deploy/envs:ro \
    -v /root/deploy/keys:/deploy/keys:ro \

    # Mount configs
    -v /root/deploy/config/deploy-server1:/deploy/config/deploy:ro \
    -v /root/deploy/config/deploy.rb:/deploy/config/deploy.rb:ro \

    # Mount your Capfile
    -v /root/deploy/Capfile:/deploy/Capfile:ro \

    # Your script to launch the deploy
    -v /root/deploy/launch.sh:/deploy/scripts/launch.sh:ro \

    # Needed ENVs
    -e LOGNAME="$USER" \
    -e USERNAME="$USER" \
    -e BRANCH=$2 \
    -e ENV_NAME=$ENV_NAME \
    -e SSH_KEY="./deploy/keys/id_rsa_deploy" \
    -it --net=host --rm botsudo/capistrano:3.17.1 sh -exu -c './deploy/scripts/launch.sh'
    # Also exists as 3.17.1-symfony for deploying symfony
    # Also exists as 3.17.1-laravel for deploying laravel