feat: add github actions builds

.github/workflows/build.yaml

@@ -0,0 +1,63 @@
+name: build
+
+on:
+  push:
+    branches:
+      - 'master'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Extract metadata for the Docker image
+        id: meta
+        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        with:
+          images: dntsk/later42
+
+      - name: Build and push
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+
+  deploy:
+    runs-on: ubuntu-latest
+    needs: [build]
+    steps:
+      - name: Deploy
+        run: |-
+          mkdir -p /home/runner/.ssh
+          echo "$SSH_KEY" > /home/runner/.ssh/id_rsa
+          chmod 600 /home/runner/.ssh/id_rsa
+          cat >> /home/runner/.ssh/config <<END
+          Host cloud
+            HostName $SSH_HOST
+            User $SSH_USER
+            IdentityFile /home/runner/.ssh/id_rsa
+            StrictHostKeyChecking no
+            UserKnownHostsFile /dev/null
+          END
+          ssh cloud 'docker-compose -f /opt/docker-compose.yaml pull later42'
+          ssh cloud 'docker-compose -f /opt/docker-compose.yaml up -d later42'
+          rm -rf /home/runner/.ssh
+        env:
+          SSH_KEY: ${{ secrets.SSH_KEY }}
+          SSH_HOST: ${{ secrets.SSH_HOST }}
+          SSH_USER: ${{ secrets.SSH_USER }}