Ensure main publish workflow uses short SHA

Author: integrii

.github/workflows/publish.yaml

@@ -0,0 +1,47 @@
+name: Publish main
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${ secrets.DOCKER_HUB_USER }
+          password: ${ secrets.DOCKER_HUB_PAT }
+
+      - name: Set image tag
+        run: |
+          SHORT_SHA=$(git rev-parse --short HEAD)
+          IMAGE_TAG="kuberhealthy/ssh-check:${SHORT_SHA}"
+          echo "IMAGE_TAG=${IMAGE_TAG}" >> $GITHUB_ENV
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ${ env.IMAGE_TAG }
+
+      - name: Publish summary
+        run: |
+          echo "Images pushed:" >> "$GITHUB_STEP_SUMMARY"
+          echo "- ${ env.IMAGE_TAG }" >> "$GITHUB_STEP_SUMMARY"