try to consolidate image tags

Author: tamcore

.github/workflows/docker-release.yml

@@ -34,7 +34,7 @@ jobs:
     steps:
     - id: set-output-defaults
       run: |
-        echo "::set-output name=tag::${{ env.IS_PRERELEASE == 'true' && 'alpha' || 'ubuntu' }}"
+        echo "::set-output name=tag::${{ env.IS_PRERELEASE == 'true' && 'alpha' }}"
         echo "::set-output name=tag_latest::${{ env.IS_PRERELEASE == 'true' && 'false' || 'true' }}"
 
   release-container:

.github/workflows/reusable-container-workflow.yaml

@@ -7,7 +7,7 @@ on:
         required: true
         type: string
       tag:
-        required: true
+        required: false
         type: string
       tag_latest:
         required: false
@@ -88,30 +88,26 @@ jobs:
           username: ${{ inputs.registry_username }}
           password: ${{ secrets.registry_password }}
 
-      - if: matrix.tag_main == 'true'
-        name: Docker meta
+      - name: Docker meta
         id: metadata
         uses: docker/metadata-action@v3
         with:
           images: |
             ${{ inputs.image }}
           tags: |
-            type=raw,value=latest,enable=${{ inputs.tag_latest }}
-            type=raw,value=${{ inputs.tag }}
-            type=raw,value=${{ inputs.tag }}-${{ matrix.tag }}
-            type=raw,value=${{ inputs.release_version }},enable=${{ inputs.release_version != '' }}
-            type=raw,value=${{ inputs.release_version }}-${{ matrix.tag }},enable=${{ inputs.release_version != '' }}
+            # will set tag 'latest' for ubuntu build on production push
+            type=raw,value=latest,enable=${{ matrix.tag_main && inputs.tag_latest }}
 
-      - if: matrix.tag_main == 'false'
-        name: Docker meta
-        id: metadata2
-        uses: docker/metadata-action@v3
-        with:
-          images: |
-            ${{ inputs.image }}
-          tags: |
+            # will set tag like 'alpha' for ubuntu build, if inputs.tag is not empty
+            type=raw,value=${{ inputs.tag }},enable=${{ matrix.tag_main }}
+
+            # will set tag like 'alpha-(ubuntu|alpine)', if inputs.tag is not empty
             type=raw,value=${{ inputs.tag }}-${{ matrix.tag }}
+
+            # will set tag like 'v0.12.0' for ubuntu build, if inputs.release_version is not empty
             type=raw,value=${{ inputs.release_version }},enable=${{ inputs.release_version != '' }}
+
+            # will set tag like 'v0.12.0-(ubuntu|alpine)', if inputs.release_version is not empty
             type=raw,value=${{ inputs.release_version }}-${{ matrix.tag }},enable=${{ inputs.release_version != '' }}
 
       - name: Build release image