cicd.yml

name: server deployment

on: [push] # tells github to run this on any push to the repository

jobs:
  deploy:
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/master' # we tell Github to only execute this step if we're on our master branch (so we don't put unfinished branches in production)
    steps:
      - name: Deploying to server
        uses: appleboy/ssh-action@master # An action made to control Linux servers
        with: # We set all our secrets here for the action, these won't be shown in the action logs
          host: ${{ secrets.HOST }} 
          username: ${{ secrets.USERNAME }}
          password: ${{ secrets.PASSWORD }}
          port: ${{ secrets.PORT }}
          script: |
            cd /home/${{ secrets.USERNAME }}/osm # we move into our app's folder
            git pull # we pull any changes from git
            npm prune # we remove any unused dependencies
            npm install # we install any missing dependencies
            pm2 reload osm --exp-backoff-restart-delay=100 --time # we reload the app via PM2; use "--max-memory-restart 1024M" if memory gets out of hand