Update deploy-image.yml to handle tag-based deployments and dynamically compute image tags

.gitea/workflows/deploy-image.yml

@@ -2,6 +2,8 @@ name: Build and Push Docker Image
 
 on:
   push:
+    tags:
+      - 'v*'
   workflow_dispatch:
 
 jobs:
@@ -16,7 +18,6 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Compute image name and tag
-        id: meta
         run: |
           REGISTRY=$(echo "${{ github.server_url }}" | sed 's|https\?://||')
           OWNER=$(echo "${{ github.repository_owner }}" | tr '[:upper:]' '[:lower:]')
@@ -25,8 +26,8 @@ jobs:
           FULL_IMAGE="${REGISTRY}/${OWNER}/${IMAGE_NAME}"
 
           REF="${{ github.ref_name }}"
-          if [ "${REF}" = "main" ]; then
-            TAG="latest"
+          if [[ "${REF}" == v* ]]; then
+            TAG="${REF#v}"
           else
             TAG=$(echo "${REF}" | tr '[:upper:]' '[:lower:]' | sed 's/[^a-z0-9._-]/-/g')
           fi
@@ -62,4 +63,4 @@ jobs:
         with:
           context: .
           push: true
-          tags: git.mein-gateway.de/thischwa/javadocviewerservice:develop
+          tags: ${{ steps.metai.outputs.image }}:${{ steps.metai.outputs.tag }}