DONE: update cicd for backend

.gitea/workflows/deploy-prod.yml

@@ -12,11 +12,10 @@ on:
 
 env:
   BACKEND_IMAGE: git.koppkb.com/kopkb/my-kopkb-be
-  DEPLOY_DIR: /home/arrahn/Project
 
 jobs:
   deploy:
-    runs-on: host
+    runs-on: mykopkb-production
 
     steps:
       - name: Checkout repository
@@ -24,107 +23,133 @@ jobs:
         with:
           ref: ${{ inputs.image_tag }}
 
-      - name: Login to Docker registry
+      - name: Verify image exists in registry
         run: |
+          set -e
           echo "${{ secrets.REGISTRY_PASSWORD }}" | \
             docker login git.koppkb.com \
               -u "${{ secrets.REGISTRY_USERNAME }}" \
               --password-stdin
 
-      - name: Verify images exist in registry
-        run: |
-          set -e
-          IMAGE_TAG="${{ inputs.image_tag }}"
-
-          IMAGE="${BACKEND_IMAGE}:${IMAGE_TAG}"
+          IMAGE="${BACKEND_IMAGE}:${{ inputs.image_tag }}"
           echo "Checking if image exists: ${IMAGE}"
-          if ! docker manifest inspect "${IMAGE}" > /dev/null 2>&1; then
-            echo "ERROR: Image ${IMAGE} does not exist in registry!"
-            exit 1
-          fi
+          docker manifest inspect "${IMAGE}" > /dev/null
           echo "✓ ${IMAGE} found"
 
-      - name: Pull Docker images
+      - name: Deploy over SSH
+        env:
+          PROD_HOST: ${{ secrets.PROD_HOST }}
+          PROD_USER: ${{ secrets.PROD_USER }}
+          PROD_SSH_KEY: ${{ secrets.PROD_SSH_KEY }}
+          PROD_DEPLOY_DIR: ${{ secrets.PROD_DEPLOY_DIR }}
+          REGISTRY_USERNAME: ${{ secrets.REGISTRY_USERNAME }}
+          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
+          IMAGE_TAG: ${{ inputs.image_tag }}
         run: |
-          set -e
-          IMAGE_TAG="${{ inputs.image_tag }}"
-          docker pull "${BACKEND_IMAGE}:${IMAGE_TAG}"
-          echo "✓ Image pulled successfully"
+          set -euo pipefail
 
-      - name: Sync compose file and deploy
-        run: |
-          set -e
-          IMAGE_TAG="${{ inputs.image_tag }}"
-
-          mkdir -p "${DEPLOY_DIR}"
-          cp docker/production/docker-compose.production.yml "${DEPLOY_DIR}/docker-compose.yml"
-
-          ENV_FILE=".env.production"
-          if [ ! -f "${ENV_FILE}" ]; then
-            echo "ERROR: ${ENV_FILE} is missing from the repository checkout"
+          if [ ! -f .env.production ]; then
+            echo "ERROR: .env.production is missing from the repository checkout"
             exit 1
           fi
-          cp "${ENV_FILE}" "${DEPLOY_DIR}/.env"
-          chmod 600 "${DEPLOY_DIR}/.env"
-
-          NGINX_CONF="$(pwd)/docker/production/nginx/nginx.conf"
-          if [ ! -f "${NGINX_CONF}" ]; then
-            echo "ERROR: nginx config not found at ${NGINX_CONF}"
+          if [ ! -f docker/production/nginx/nginx.conf ]; then
+            echo "ERROR: docker/production/nginx/nginx.conf is missing from the repository checkout"
             exit 1
           fi
 
-          cd "${DEPLOY_DIR}"
+          if ! command -v ssh >/dev/null 2>&1; then
+            apt-get update && apt-get install -y openssh-client
+          fi
 
-          export IMAGE_TAG
-          export NGINX_CONF
+          mkdir -p ~/.ssh
+          umask 077
+          # Gitea often stores a multiline key as one line. Prefer a base64
+          # secret (one line). A raw key that still contains BEGIN is accepted too.
+          if printf '%s' "$PROD_SSH_KEY" | grep -q -- '-----BEGIN'; then
+            printf '%b\n' "$PROD_SSH_KEY" | tr -d '\r' > ~/.ssh/id_ed25519
+          else
+            printf '%s' "$PROD_SSH_KEY" | tr -d '[:space:]' | base64 -d > ~/.ssh/id_ed25519
+          fi
+          chmod 600 ~/.ssh/id_ed25519
+          if ! ssh-keygen -y -f ~/.ssh/id_ed25519 >/dev/null; then
+            echo "ERROR: PROD_SSH_KEY is not a readable private key."
+            echo "On the runner, run: base64 -w0 ~/.ssh/mykopkb_prod"
+            echo "Put that single line in the PROD_SSH_KEY secret."
+            exit 1
+          fi
+          ssh-keyscan -H "$PROD_HOST" >> ~/.ssh/known_hosts
+
+          SSH=(ssh -i ~/.ssh/id_ed25519 -o IdentitiesOnly=yes "${PROD_USER}@${PROD_HOST}")
+          IMAGE="${BACKEND_IMAGE}:${IMAGE_TAG}"
+          NGINX_CONF="${PROD_DEPLOY_DIR}/nginx/nginx.conf"
+
+          "${SSH[@]}" "mkdir -p '${PROD_DEPLOY_DIR}/nginx'"
+          scp -i ~/.ssh/id_ed25519 -o IdentitiesOnly=yes \
+            docker/production/docker-compose.production.yml \
+            "${PROD_USER}@${PROD_HOST}:${PROD_DEPLOY_DIR}/docker-compose.yml"
+          scp -i ~/.ssh/id_ed25519 -o IdentitiesOnly=yes \
+            .env.production \
+            "${PROD_USER}@${PROD_HOST}:${PROD_DEPLOY_DIR}/.env"
+          scp -i ~/.ssh/id_ed25519 -o IdentitiesOnly=yes \
+            docker/production/nginx/nginx.conf \
+            "${PROD_USER}@${PROD_HOST}:${NGINX_CONF}"
+
+          "${SSH[@]}" "bash -s" << EOF
+          set -euo pipefail
+          echo "${REGISTRY_PASSWORD}" | docker login git.koppkb.com \
+            -u "${REGISTRY_USERNAME}" --password-stdin
+
+          echo "Checking if image exists: ${IMAGE}"
+          docker manifest inspect "${IMAGE}" > /dev/null
+          echo "✓ ${IMAGE} found"
+
+          echo "Deploying backend IMAGE=${IMAGE}"
+          chmod 600 "${PROD_DEPLOY_DIR}/.env"
+
+          docker network inspect mykopkb-production-network >/dev/null 2>&1 \
+            || docker network create mykopkb-production-network
+
+          cd "${PROD_DEPLOY_DIR}"
+          export IMAGE_TAG="${IMAGE_TAG}"
+          export NGINX_CONF="${NGINX_CONF}"
 
           docker rm -f mykopkb-be-production || true
           docker compose -f docker-compose.yml pull backend
           docker compose -f docker-compose.yml up -d backend
 
-          echo "✓ Deployed backend IMAGE_TAG=${IMAGE_TAG}"
-
-      - name: Verify deployment
-        run: |
-          set -e
-          cd "${DEPLOY_DIR}"
-
-          echo "Waiting for services to start..."
+          echo "Waiting for the backend to start..."
           sleep 10
 
-          STATUS=$(docker compose -f docker-compose.yml ps --status running --format '{{.Name}}' backend 2>/dev/null || true)
-          if [ -z "$STATUS" ]; then
+          STATUS=\$(docker compose -f docker-compose.yml ps --status running --format '{{.Name}}' backend || true)
+          if [ -z "\$STATUS" ]; then
             echo "ERROR: backend is not running"
             docker compose -f docker-compose.yml ps
             docker compose -f docker-compose.yml logs --tail=50 backend || true
             exit 1
           fi
-          echo "✓ backend is running (${STATUS})"
+          echo "✓ backend is running (\$STATUS)"
 
-          BE_CONTAINER=$(docker compose -f docker-compose.yml ps -q backend)
-          if docker exec "$BE_CONTAINER" test -f /var/www/.env; then
+          BE_CONTAINER=\$(docker compose -f docker-compose.yml ps -q backend)
+          if docker exec "\$BE_CONTAINER" test -f /var/www/.env; then
             echo "✓ Backend .env file exists"
           else
             echo "WARNING: Backend .env file not found"
           fi
 
-          API_PORT=$(grep -E '^API_PORT=' .env 2>/dev/null | cut -d= -f2- | tr -d '"' || true)
-          API_PORT=${API_PORT:-8080}
+          API_PORT=\$(grep -E '^API_PORT=' .env 2>/dev/null | cut -d= -f2- | tr -d '"' || true)
+          API_PORT=\${API_PORT:-8080}
 
-          check_health() {
-            NAME=$1
-            URL=$2
           for i in 1 2 3 4 5 6; do
-              if curl -sf "$URL" > /dev/null; then
-                echo "✓ ${NAME} health check passed (${URL})"
-                return 0
+            if curl -sf "http://127.0.0.1:\${API_PORT}/health" > /dev/null; then
+              echo "✓ backend health check passed (http://127.0.0.1:\${API_PORT}/health)"
+              echo "✓ Deployed backend IMAGE_TAG=${IMAGE_TAG}"
+              exit 0
             fi
-              echo "Waiting for ${NAME}... attempt ${i}/6"
+            echo "Waiting for backend... attempt \${i}/6"
             sleep 5
           done
-            echo "ERROR: ${NAME} health check failed (${URL})"
-            docker compose -f docker-compose.yml logs --tail=50 "${NAME}" || true
-            return 1
-          }
 
-          check_health "backend" "http://127.0.0.1:${API_PORT}/health"
+          echo "ERROR: backend health check failed (http://127.0.0.1:\${API_PORT}/health)"
+          docker compose -f docker-compose.yml logs --tail=50 backend || true
+          exit 1
+          EOF