ADD: Job to deliver image

Author: jarpsimoes

Diff for: .github/workflows/docker-image.yml

@@ -38,7 +38,7 @@ jobs:
           fail_ci_if_error: true 
 
   build:
-    if: github.ref == 'refs/heads/main'
+    if: startsWith(github.ref, 'refs/tags/')
     runs-on: ubuntu-latest
     needs: coverage
     steps:
@@ -53,11 +53,16 @@ jobs:
       - name: Add SHORT_SHA env property with commit short sha
         run: echo "SHORT_SHA=`echo ${GITHUB_SHA} | cut -c1-8`" >> $GITHUB_ENV
 
+      - name: Docker Tag
+        id: vars
+        run: echo ::set-output name=tag::${GITHUB_REF/refs\/tags\//}
+
       - name: Build the Docker image
-        run: docker build . --file Dockerfile --tag jarpsimoes/git_http_server:v0.${SHORT_SHA}
+        run: |
+          docker build . --file Dockerfile --tag jarpsimoes/git_http_server:${{ steps.vars.outputs.tag }}
+          docker tag jarpsimoes/git_http_server:${{ steps.vars.outputs.tag }} jarpsimoes/git_http_server:latest
 
       - name: Push Image
-        run: docker push jarpsimoes/git_http_server:v0.${SHORT_SHA}
-
-      - name: Push Latest
-        run: docker tag jarpsimoes/git_http_server:v0.${SHORT_SHA} jarpsimoes/git_http_server:latest && docker push jarpsimoes/git_http_server:latest
+        run: |
+          docker push jarpsimoes/git_http_server:${{ steps.vars.outputs.tag }}
+          docker push jarpsimoes/git_http_server:latest