Auto Deployment of Discord Bot with Systemd and GitHub Actions

deploy-new-bot.yml

# Author: Henry Koleoso
# Put these two files in .github/workflows/
# Prerequisites: 
# SSH Key pair - Private key in GitHub Secrets, Public key in /root/.ssh/authorized_keys on your server
# Discord Bot token - In GitHub Secrets or Environment Variables.

# This file is the workflow that handles the initial setup of your Discord bot.

# This job should be run only ONCE. Changes in 'create-systemctl-service' are appended to the systemd.service file, not overwritten so the file will be invalid!
# If you make a mistake, and need to run this job more than once, navigate to /etc/systemd/system 
# and just remove everything in the your-service.service file, save it and run systemctl daemon-reload then rerun your pipeline

# However, if you copy paste this file, it's unlikely you wont need to rerun it anyway!


name: Deploy new Bot
on:
  # allows the workflow to be run manually
  workflow_dispatch:
env:
  REPO_NAME: ${{ github.event.repository.name }}
jobs:
  install-requirements:
    runs-on: ubuntu-latest
    steps:
      - name: Installing requirements for ${{ env.REPO_NAME }}
        uses: fifsky/ssh-action@master
        with:
          # install the libraries required for your bot
          command: |
            # pip install discord.py
            # pip install discord.py
            # etc
          host: # 123.45.678.890
          user: root
          key: ${{ secrets.SSH_PRIVATE_KEY }}

  deploy-via-sftp:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - id: SFTPDeploy
        uses: wlixcc/SFTP-Deploy-Action@v1.2.1
        with:
          username: root
          server: # 123.45.678.890
          port: 22
          ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}
          # clones entire github repo
          local_path: ./*
          # destination of the code on the server
          remote_path: /root/${{ env.REPO_NAME }}/
          args: '-o ConnectTimeout=5'

  # you may or may not need this. It all depends on how your code retrieves your discord token
  # environment variables or Github secrets are heavily recommended
  add-bot-token:
      needs: [ deploy-via-sftp ]
      runs-on: ubuntu-latest
      timeout-minutes: 2
      env:
        BOT_TOKEN: ${{ secrets.BOT_TOKEN }}
      steps:
        - id: add-bot-token
          uses: fifsky/ssh-action@master
          with:
            command: |
              cd ${{ env.REPO_NAME }}/lib/bot
              touch token.0
              echo ${{ env.BOT_TOKEN }} > token.0
              echo $?
            host: # 123.45.678.890
            user: root
            key: ${{ secrets.SSH_PRIVATE_KEY }}

  create-systemctl-service:
    needs: [add-bot-token, deploy-via-sftp]
    runs-on: ubuntu-latest
    steps:
      - id: creating-systemctl-service
        uses: fifsky/ssh-action@master
        with:
          # Make sure ExecStart=, WorkingDirectory= and chmod +x point to the same directory. These may be unique to your code setup
          command: |
            echo "[Unit]
            Description=${{ env.REPO_NAME }} Discord Bot
            After=multi-user.target
            [Service]
            Type=simple
            ExecStart=/usr/bin/python3 /root/${{ env.REPO_NAME }}/launcher.py
            User=root
            Restart=on-failure
            RestartSec=30
            WorkingDirectory=/root/${{ env.REPO_NAME }}/
            [Install]
            WantedBy=multi-user.target" >> /etc/systemd/system/${{ env.REPO_NAME }}.service
            chmod +x /root/${{ env.REPO_NAME }}/launcher.py
            sudo systemctl enable ${{ env.REPO_NAME }}.service
            sudo systemctl daemon-reload
            sudo systemctl start ${{ env.REPO_NAME }}.service
          host: # 123.45.678.890
          user: root
          key: ${{ secrets.SSH_PRIVATE_KEY }}

  create-systemctl-restart:
    needs: [create-systemctl-service, add-bot-token, deploy-via-sftp]
    runs-on: ubuntu-latest
    steps:
      - id: create-systemctl-restart-service
        uses: fifsky/ssh-action@master
        with:
          command: |
            echo "[Unit]
            Description=${{ env.REPO_NAME }} Discord Bot restart
            After=multi-user.target
            [Service]
            Type=oneshot
            ExecStart=/usr/bin/systemctl restart ${{ env.REPO_NAME }}.service
            [Install]
            WantedBy=multi-user.target" >> /etc/systemd/system/${{ env.REPO_NAME }}-watcher.service
            sudo systemctl enable ${{ env.REPO_NAME }}-watcher.service
            sudo systemctl daemon-reload
            sudo systemctl start ${{ env.REPO_NAME }}-watcher.service
          host: # 123.45.678.890
          user: root
          key: ${{ secrets.SSH_PRIVATE_KEY }}

update-bot.yml

# This workflow restarts your bot whenever you merge into the branch called 'main'
name: Update Bot
on:
  push:
    branches: [ main ]
  workflow_dispatch:
env:
    REPO_NAME: ${{ github.event.repository.name }}
jobs:
  deploy-via-sftp:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: SFTP Deploy
        uses: wlixcc/SFTP-Deploy-Action@v1.2.1
        with:
          username: root
          server: # 123.45.678.890
          port: 22
          ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}
          local_path: ./*
          remote_path: /root/${{ env.REPO_NAME }}/
          args: '-o ConnectTimeout=5'

  restart-bot:
    needs: [deploy-via-sftp]
    runs-on: ubuntu-latest
    steps:
      - id: creating-systemctl-service
        uses: fifsky/ssh-action@master
        with:
          command: sudo systemctl start ${{ env.REPO_NAME }}-watcher.service
          host: # 123.45.678.890
          user: root
          key: ${{ secrets.SSH_PRIVATE_KEY }}