Example of Laravel deployment over SSH via Gitlab CI

.gitlab-ci.yml

---
stages:
  - pull
  - npm
  - push
  - permissions
  - composer
  - migrations
  - optimize

variables:
  MYPATH: "/home/site/"
  MYSSH: "ssh -t $SSH_USER@$SSH_IP"

.ssh: &ssh
  image: hyperized/openssh-client
  before_script:
    - eval $(ssh-agent -s)
    - ssh-add <(echo "$SSH_PRIVATE_KEY")
    - mkdir -p ~/.ssh
    - chmod 700 ~/.ssh
    - echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config
    - echo "$SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts
    - chmod 644 ~/.ssh/known_hosts
  only:
    refs:
      - master

.tags: &tags
  tags:
    - gcp

pull_on_server:
  stage: pull
  <<: *ssh
  script:
    - $MYSSH "cd $MYPATH && git reset --hard"
    - $MYSSH "cd $MYPATH && git pull $CI_REPOSITORY_URL"

npm:
  stage: npm
  image: node
  script:
    - npm install
    - npm run production
  artifacts:
    paths:
      - public/css
      - public/js
    expire_in: 1 hour

push_to_server:
  stage: push
  <<: *ssh
  script:
    - scp -P 50 -rv public/css $SSH_USER@$SSH_IP:$MYPATH/public/
    - scp -P 50 -rv public/js $SSH_USER@$SSH_IP:$MYPATH/public/

permissions:
  stage: permissions
  <<: *ssh
  script:
    - $MYSSH "sudo chown -R site:www-data $MYPATH"
    - $MYSSH "sudo find $MYPATH -type f -exec chmod 664 {} \;"
    - $MYSSH "sudo find $MYPATH -type d -exec chmod 775 {} \;"
    - $MYSSH "sudo chgrp -R www-data $MYPATH/storage $MYPATH/bootstrap/cache"
    - $MYSSH "sudo chmod -R ug+rwx $MYPATH/storage $MYPATH/bootstrap/cache"
  <<: *tags

migrations:
  stage: migrations
  <<: *ssh
  script:
    - $MYSSH "cd $MYPATH && php artisan migrate"
    - $MYSSH "redis-cli FLUSHALL"
  <<: *tags

composer:
  stage: composer
  <<: *ssh
  script:
    - $MYSSH "cd $MYPATH && composer install --no-progress --no-suggest --optimize-autoloader --no-dev --ignore-platform-reqs"
  <<: *tags

optimize:
  stage: optimize
  <<: *ssh
  script:
    - $MYSSH "cd $MYPATH && php artisan nova:publish --force"
    - $MYSSH "cd $MYPATH && php artisan view:cache"
    - $MYSSH "cd $MYPATH && php artisan config:cache"
    - $MYSSH "cd $MYPATH && php artisan event:cache"
    - $MYSSH "cd $MYPATH && php artisan route:cache"
  <<: *tags