Adapt workflow to build from a specific tag

Author: GuillaumeBourque-QC

.github/workflows/build-indy-node-monitor.yaml

@@ -12,7 +12,7 @@ on:
       ref:
         required: false
         type: string
-        description: "This is the tag version number use to build and publish the container.  Don't include the v like this 2.4.6, if you dont provide a version we will get the latest tag version from the repo"
+        description: "This is the tag version, don't include the v like this 2.4.6, if you dont provide a version we will get the latest tag"
 
 jobs:
   build:
@@ -42,11 +42,38 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Set lowercase username
+        run: echo "USERNAME=$(echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV
+      - name: Checkout repository main
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Required due to the way Git works, without it this action won't be able to find any or the correct tags
+
+      - name: Extract latest version from Git tag, excludind the v.
+        run: |
+          LATEST_TAG=$(git describe --tags `git rev-list --tags --max-count=1` | cut -c2-)
+          echo "LATEST_TAG=$LATEST_TAG" >> $GITHUB_ENV
+          echo "LATEST_TAG=$LATEST_TAG"
+
+      - name: Checkout repository specific tag
+        uses: actions/checkout@v4
+        with:
+          ref: v${{ inputs.ref || env.LATEST_TAG }}
+
+      - name: Log in to the GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Set lowercase username
         run: echo "USERNAME=$(echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV
 
       - name: Build the Docker image
         run: docker build -t ghcr.io/${{ env.USERNAME }}/${{ github.event.repository.name }}/indy-node-monitor:${{ inputs.ref || env.LATEST_TAG  }} ./fetch-validator-status/
+        run: docker build -t ghcr.io/${{ env.USERNAME }}/${{ github.event.repository.name }}/indy-node-monitor:${{ inputs.ref || env.LATEST_TAG  }} ./fetch-validator-status/
 
       - name: Push the Docker image
         run: docker push ghcr.io/${{ env.USERNAME }}/${{ github.event.repository.name }}/indy-node-monitor:${{ inputs.ref || env.LATEST_TAG }}
+        run: docker push ghcr.io/${{ env.USERNAME }}/${{ github.event.repository.name }}/indy-node-monitor:${{ inputs.ref || env.LATEST_TAG }}