github: tag as 'latest' only released images

.github/workflows/publish_to_dockerhub.yml

@@ -105,15 +105,23 @@ jobs:
       - name: Update Go modules
         run: go mod download
 
-      - name: Build images
+      - name: Build image
         run: make image
 
+      - name: Build image with 'latest' tag
+        if: ${{ github.event_name == 'release' && github.event.release.target_commitish == 'master' }}
+        run: make image-latest
+
       - name: Login to DockerHub
         uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_PASSWORD }}
 
-      - name: Push released images to registry
+      - name: Push image to registry
         if: ${{ github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.push_image == 'true') }}
         run: make image-push
+
+      - name: Push image with 'latest' tag to registry
+        if: ${{ github.event_name == 'release' && github.event.release.target_commitish == 'master' }}
+        run: make image-push-latest

Makefile

@@ -18,7 +18,7 @@ IMAGE_REPO=nspccdev/neo-go
 
 # All of the targets are phony here because we don't really use make dependency
 # tracking for files
-.PHONY: build deps image check-version clean-cluster push-tag push-to-registry \
+.PHONY: build deps image image-latest image-push image-push-latest check-version clean-cluster push-tag push-to-registry \
 	run run-cluster test vet lint fmt cover
 
 build: deps
@@ -50,14 +50,20 @@ postinst: install
 
 image: deps
 	@echo "=> Building image"
-	@docker build -t $(IMAGE_REPO):latest --build-arg REPO=$(REPO) --build-arg VERSION=$(VERSION) .
 	@docker build -t $(IMAGE_REPO):$(VERSION) --build-arg REPO=$(REPO) --build-arg VERSION=$(VERSION) .
 
+image-latest: deps
+	@echo "=> Building image with 'latest' tag"
+	@docker build -t $(IMAGE_REPO):latest --build-arg REPO=$(REPO) --build-arg VERSION=$(VERSION) .
+
 image-push:
 	@echo "=> Publish image"
-	@docker push $(IMAGE_REPO):latest
 	@docker push $(IMAGE_REPO):$(VERSION)
 
+image-push-latest:
+	@echo "=> Publish image with 'latest' tag"
+	@docker push $(IMAGE_REPO):latest
+
 check-version:
 	git fetch && (! git rev-list ${VERSION})