feat: add input to select specific image for manual trigger

.gitea/workflows/build-images.yml

@@ -6,6 +6,11 @@ on:
     paths:
       - 'images/**'
   workflow_dispatch:
+    inputs:
+      image:
+        description: 'Image to build (e.g., terraform-ci). Leave empty to build all.'
+        required: false
+        default: ''
 
 env:
   REGISTRY: gitea.arnodo.fr
@@ -30,6 +35,12 @@ jobs:
           echo "Event: ${{ gitea.event_name }}"
           
           if [ "${{ gitea.event_name }}" = "workflow_dispatch" ]; then
+            if [ -n "${{ inputs.image }}" ]; then
+              # Manual trigger with specific image
+              echo "Manual trigger - building specific image: ${{ inputs.image }}"
+              IMAGES="${{ inputs.image }}"
+            else
+              # Manual trigger without input = build all
               echo "Manual trigger - building all images"
               IMAGES=""
               for dir in images/*/; do
@@ -39,7 +50,9 @@ jobs:
                   IMAGES="${IMAGES}${name} "
                 fi
               done
+            fi
           else
+            # Push event = detect changes only
             echo "Push event - detecting changes"
             IMAGES=$(git diff --name-only HEAD~1 HEAD -- images/ 2>/dev/null | cut -d'/' -f2 | sort -u | grep -v '^$' | tr '\n' ' ')
           fi
@@ -64,6 +77,17 @@ jobs:
             IMAGE_NAME="${{ env.REGISTRY }}/damien/${IMAGE}"
             IMAGE_PATH="images/${IMAGE}"
             
+            # Validate image path exists
+            if [ ! -d "$IMAGE_PATH" ]; then
+              echo "❌ Error: Directory $IMAGE_PATH does not exist"
+              exit 1
+            fi
+            
+            if [ ! -f "$IMAGE_PATH/Dockerfile" ]; then
+              echo "❌ Error: Dockerfile not found in $IMAGE_PATH"
+              exit 1
+            fi
+            
             echo "========================================"
             echo "Building ${IMAGE_NAME}:latest"
             echo "========================================"