chore: add release workflow (#750)

* Regenerate deepcopy

* Add the workflow

* Stop signing the tag

.github/workflows/release.yaml

@@ -0,0 +1,56 @@
+name: Release Operator
+on:
+  workflow_dispatch:
+
+jobs:
+  build-and-release:
+    name: Release Operator, build and push newest image
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up env vars
+        run: |
+          echo "GO111MODULE=on" >> $GITHUB_ENV
+          echo "GO_VERSION=v$(sed -n 's/GO_VERSION=//p' config.base.env)" >> $GITHUB_ENV
+          echo "GOPATH=/home/runner/go" >> $GITHUB_ENV
+
+      - name: Prepare go environment
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      - name: Ensure Golang runtime dependencies
+        run: make go-dependencies
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "[email protected]"
+
+      - name: Tag the release
+        run: make tag
+
+      - name: Set version for release tag name
+        run: |
+          echo "VERSION=$(cat VERSION.txt)" >> $GITHUB_ENV
+
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        with:
+          tag_name: ${{ env.VERSION }}
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+
+      - name: Build and push the image to DockerHub
+        run: |
+          git reset --hard
+          make container-runtime-release

Makefile

@@ -398,7 +398,7 @@ bump-version: sembump ## Bump the version in the version file. Set BUMP to [ pat
 .PHONY: tag
 tag: ## Create a new git tag to prepare to build a release
 	@echo "+ $@"
-	git tag -s -a $(VERSION) -m "$(VERSION)"
+	git tag -a $(VERSION) -m "$(VERSION)"
 	git push origin $(VERSION)
 
 .PHONY: help