Use commit hash to build docker image and publish.

.github/workflows/publish.yaml

@@ -9,14 +9,15 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Get the version
-        run: echo ::set-output name=tag::$(echo ${GITHUB_REF#refs/tags/})
+        run: |
+          echo ::set-output name=tag::$(echo ${GITHUB_REF#refs/tags/})
+          echo ::set-output name=sha::$(echo ${GITHUB_SHA})
         id: vars
-      - name: Extract branch name
-        shell: bash
-        run: echo "##[set-output name=branch;]$(echo ${GITHUB_BASE_REF#refs/heads/})"
-        id: extract_branch
-      - name: Docker Login
-        run: echo ${{ secrets.GITHUB_TOKEN }} | docker login https://docker.pkg.github.com -u vulcanize --password-stdin
+      - name: Docker Login to Docker Registry
+        uses: docker/login-action@v1
+        with:
+          username: vulcanizejenkins
+          password: ${{ secrets.VULCANIZEJENKINS_PAT }}
       - name: Build and push
         uses: docker/build-push-action@v2
         with:
@@ -24,4 +25,5 @@ jobs:
           push: true
           tags: vulcanize/eth-statediff-service:${{ steps.vars.outputs.tag }}
           build-args: |
-            BRANCH=${{ steps.extract_branch.outputs.branch }}
+            GIT_COMMIT=${{ steps.vars.outputs.sha }}
+