enabled tag based deployment

.drone.yml

@@ -16,6 +16,48 @@ volumes:
       path: /var/run/docker.sock
 
 steps:
+  # -----------------------------------------------------
+  # 1. Fetch latest Git tag
+  # -----------------------------------------------------
+  - name: fetch-tags
+    image: docker:24
+    volumes:
+      - name: dockersock
+        path: /var/run/docker.sock
+    commands:
+      - apk add --no-cache git
+      - git fetch --tags
+      - |
+        LATEST_TAG=$(git describe --tags --abbrev=0 2>/dev/null | tr -d '\n')
+        echo "Latest Git tag: $LATEST_TAG"
+        echo "$LATEST_TAG" > /drone/src/LATEST_TAG.txt
+        if [ -z "$LATEST_TAG" ]; then
+          echo "❌ No git tags found. Cannot continue."
+          exit 1
+        fi
+
+  # -----------------------------------------------------
+  # 2. Check if remote image already exists
+  # -----------------------------------------------------
+  - name: check-remote-image
+    image: docker:24
+    volumes:
+      - name: dockersock
+        path: /var/run/docker.sock
+    environment:
+      REGISTRY_HOST:
+        from_secret: REGISTRY_HOST
+    commands:
+      - IMAGE_TAG=$(cat /drone/src/LATEST_TAG.txt | tr -d '\n')
+      - echo "Checking if $REGISTRY_HOST/lila-games/nakama-server:$IMAGE_TAG exists..."
+      - |
+        if docker pull $REGISTRY_HOST/lila-games/nakama-server:$IMAGE_TAG > /dev/null 2>&1; then
+          echo "✅ Image already exists: $REGISTRY_HOST/lila-games/nakama-server:$IMAGE_TAG"
+          exit 78
+        else
+          echo "⚙️ Image does not exist. Will build."
+        fi
+
   # -----------------------------------------------------
   # 3. Build Nakama Docker image
   # -----------------------------------------------------
@@ -26,13 +68,40 @@ steps:
         path: /var/run/docker.sock
     commands:
       - IMAGE_TAG=$(cat /drone/src/LATEST_TAG.txt | tr -d '\n')
-      - echo "🔨 Building Nakama image lila-games/nakama-server:latest"
+      - echo "🔨 Building Nakama image lila-games/nakama-server:$IMAGE_TAG"
       - |
         docker build \
           --network=host \
+          -t lila-games/nakama-server:$IMAGE_TAG \
           -t lila-games/nakama-server:latest \
           /drone/src
 
+  # -----------------------------------------------------
+  # 4. Push Nakama image to registry
+  # -----------------------------------------------------
+  - name: push-image
+    image: docker:24
+    volumes:
+      - name: dockersock
+        path: /var/run/docker.sock
+    environment:
+      REGISTRY_HOST:
+        from_secret: REGISTRY_HOST
+      REGISTRY_USER:
+        from_secret: REGISTRY_USER
+      REGISTRY_PASS:
+        from_secret: REGISTRY_PASS
+    commands:
+      - IMAGE_TAG=$(cat /drone/src/LATEST_TAG.txt | tr -d '\n')
+      - echo "🔑 Logging into registry..."
+      - echo "$REGISTRY_PASS" | docker login $REGISTRY_HOST -u "$REGISTRY_USER" --password-stdin
+      - echo "🏷️ Tagging images..."
+      - docker tag lila-games/nakama-server:$IMAGE_TAG $REGISTRY_HOST/lila-games/nakama-server:$IMAGE_TAG
+      - docker tag lila-games/nakama-server:$IMAGE_TAG $REGISTRY_HOST/lila-games/nakama-server:latest
+      - echo "📤 Pushing images..."
+      - docker push $REGISTRY_HOST/lila-games/nakama-server:$IMAGE_TAG
+      - docker push $REGISTRY_HOST/lila-games/nakama-server:latest
+
   # -----------------------------------------------------
   # 5. Stop old Nakama container
   # -----------------------------------------------------
@@ -82,4 +151,4 @@ steps:
 # -----------------------------------------------------
 trigger:
   event:
-    - custom
+    - tag