build(docker): cleanup after branch removal (#32)

.github/workflows/build.yml

@@ -6,8 +6,6 @@ on:
       - '*'
     tags:
       - 'v*'
-  pull_request:
-    types: [opened, reopened, edited, ready_for_review]
 
 jobs:
   build:

.github/workflows/cleanup.yml

@@ -1,57 +1,26 @@
 name: Docker Cleanup
 
-on:
-  pull_request:
-    types: [closed, removed]
-  delete:
+on: delete
 
 jobs:
   cleanup_branch:
     if: startsWith(github.event.ref_type, 'branch') == true
     runs-on: ubuntu-latest
     steps:
-      - name: Determine docker tag
-        env:
-          GH_EVENT_REF: ${{ github.event.ref }}
-        id: dockertag
-        shell: bash
-        run: echo "::set-output name=tag::${GH_EVENT_REF#refs/heads/}"
-
-      - name: Remove branch docker tag
-        shell: bash
-        env:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
-          tag: ${{ steps.dockertag.outputs.tag }}
-        run: |
-          docker run --rm lumir/remove-dockerhub-tag --user "$username" --password "$password" cloudb0x/autoscan:$tag
-
-  cleanup_pr:
-    if: startsWith(github.event.ref, 'refs/pull/') == true
-    env:
-      GH_EVENT_REF: ${{ github.event.ref }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Determine pull request tag
-        id: githubpr
-        shell: bash
-        run: echo "::set-output name=tag::${GH_EVENT_REF#refs/pull/}"
-
-      - name: Determine docker tag
+      - name: Sanitize branch docker tag
         uses: frabert/replace-string-action@master
         id: dockertag
         with:
-          pattern: '[:\.]+'
-          string: "${{ steps.githubpr.outputs.tag }}"
+          pattern: '[:\.\/]+'
+          string: "${{ github.event.ref }}"
           replace-with: '-'
           flags: 'g'
 
-      - name: Remove pull request docker tag
+      - name: Remove branch docker tag
         shell: bash
         env:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
           tag: ${{ steps.dockertag.outputs.replaced }}
         run: |
-          docker run --rm lumir/remove-dockerhub-tag --user "$username" --password "$password" cloudb0x/autoscan:pr-$tag
-
+          docker run --rm lumir/remove-dockerhub-tag --user "$username" --password "$password" cloudb0x/autoscan:$tag