[ci] Fix SSH

variables:

  REGISTRY: registry.sc07.dev

  IMAGE_NAME: $GITLAB_USER_LOGIN/$CI_PROJECT_NAME:edge

  IMAGE_NAME: sc07/canvas:edge

publish:

  image: docker

  stage: publish

  tags:

    - docker-in-docker

  services:

    - docker:dind

  before_script:

  only:

    - main

  before_script:

    - apt-get -yq update

    - apt-get -yqq install ssh

    - install -m 600 -D /dev/null ~/.ssh/id_rsa

    - echo "$SSH_PRIVATE_KEY" | base64 -d > ~/.ssh/id_rsa

    ##

    ## Install ssh-agent if not already installed, it is required by Docker.

    ## (change apt-get to yum if you use an RPM-based image)

    ##

    - "command -v ssh-agent >/dev/null || ( apt-get update -y && apt-get install openssh-client -y )"

    ##

    ## Run ssh-agent (inside the build environment)

    ##

    - eval $(ssh-agent -s)

    ##

    ## Give the right permissions, otherwise ssh-add will refuse to add files

    ## Add the SSH key stored in SSH_PRIVATE_KEY file type CI/CD variable to the agent store

    ##

    - chmod 400 "$SSH_PRIVATE_KEY"

    - ssh-add "$SSH_PRIVATE_KEY"

    ##

    ## Create the SSH directory and give it the right permissions

    ##

    - mkdir -p ~/.ssh

    - chmod 700 ~/.ssh

    - ssh-keyscan -H $SSH_HOST > ~/.ssh/known_hosts

  script:

    - ssh $SSH_USER@$SSH_HOST "cd $WORK_DIR && docker compose pull && docker compose up -d && exit"