Add basic Github Actions deployment

.github/workflows/ci.yml

@@ -0,0 +1,36 @@
+name: Deployer
+run-name: Build and deploy zoug.fr
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    environment: deploy
+    steps:
+      - name: Checkout the current branch
+        uses: actions/checkout@v4
+
+      - name: Initialize the ssh-agent
+        uses: webfactory/[email protected]
+        with:
+          ssh-private-key: ${{ secrets.CI_SSH_PRIVKEY }}
+
+      - name: Install Zola
+        run: sudo snap install zola --edge
+
+      - name: Build the website
+        run: zola build
+
+      - name: Scan the host key
+        run: ssh-keyscan ${{ CI_SSH_HOSTNAME }} >> ~/.ssh/known_hosts
+        env:
+          CI_SSH_HOSTNAME: ${{ secrets.CI_SSH_HOSTNAME }}
+
+      - name: Deploy the website
+        run: >-
+          rsync -avx --delete --exclude '.ssh' public/ ${{ CI_SSH_USER }}@${{ CI_SSH_HOSTNAME }}:./
+        env:
+          CI_SSH_HOSTNAME: ${{ secrets.CI_SSH_HOSTNAME }}
+          CI_SSH_USER: ${{ secrets.CI_SSH_USER }}