Deploying with Github Actions

Created a file in .github/workflows/deploy.yml with the following block:

name: Deploy Docusaurus site

on:
  push:
    branches:
      - master
  workflow_dispatch:  # Manual trigger

jobs:
  build-and-deploy:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Set up Node.js
        uses: actions/setup-node@v3
        with:
          node-version: '20'

      - name: Install dependencies
        working-directory: docs-vees-net
        run: npm install

      - name: Build Docusaurus site
        working-directory: docs-vees-net
        run: npm run build

      - name: Rsync build directory to server
        env:
          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
          SSH_KNOWN_HOSTS: ${{ secrets.SSH_KNOWN_HOSTS }}
          SERVER_HOST: ${{ secrets.SERVER_HOST }}
          SERVER_USER: ${{ secrets.SERVER_USER }}
          SERVER_DESTINATION: ${{ secrets.SERVER_DESTINATION }}
        run: |
          mkdir -p ~/.ssh
          echo "$SSH_PRIVATE_KEY" > ~/.ssh/id_rsa
          echo "$SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts
          chmod 600 ~/.ssh/id_rsa
          chmod 600 ~/.ssh/known_hosts
          rsync -avz --delete docs-vees-net/build/ $SERVER_USER@$SERVER_HOST:$SERVER_DESTINATION

I made a new key just for my remote server with the following command to use an ed25519 (smaller) key and name it for the Github Actions account that will have access to it:

ssh-keygen -t ed25519 -C "ghaction@vees.net"

I then extracted the host key from my local known_hosts file and added to the SSH_KNOWN_HOSTS secret, then added the created key to the remote server and the SSH_PRIVATE_KEY variable and to the authorized_keys file on the remote server.