add a bot to bump golang version atuomatically

.github/workflows/update-golang-version.yml

@@ -0,0 +1,43 @@
+name: "update-golang-versions"
+on:
+  workflow_dispatch:
+  schedule:
+    # every Monday at around 2 am pacific/9 am UTC
+    - cron: "0 9 * * 1"
+env:
+  GOPROXY: https://proxy.golang.org
+  GO_VERSION: 1.16.4
+jobs:
+  bump-k8s-versions:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: ${{env.GO_VERSION}}
+          stable: true
+      - name: Bump Golang Versions
+        id: bumGolang
+        run: |
+          make update-golang-version
+          echo "::set-output name=changes::$(git status --porcelain)"
+      - name: Create PR
+        if: ${{ steps.bumpGolang.outputs.changes != '' }}
+        uses: peter-evans/create-pull-request@v3
+        with:
+          token: ${{ secrets.MINIKUBE_BOT_PAT }}
+          commit-message: bump golang versions
+          committer: minikube-bot <minikube-bot@google.com>
+          author: minikube-bot <minikube-bot@google.com>
+          branch: auto_bump_golang_version
+          push-to-fork: minikube-bot/minikube
+          base: master
+          delete-branch: true
+          title: 'bump golang version'
+          labels: ok-to-test
+          body: |
+            This PR was auto-generated by `make update-golang-version` using [update-golang-versions.yml](https://github.com/kubernetes/minikube/tree/master/.github/workflows/update-golang-version.yml) CI Workflow. 
+            Please only merge if all the tests pass and if kubernetes pushed an image for this golang https://github.com/kubernetes/kubernetes/blob/master/build/build-image/cross/VERSION
+            
+            ${{ steps.bumpk8s.outputs.changes }}
+

Makefile

@@ -32,7 +32,7 @@ RPM_VERSION ?= $(DEB_VERSION)
 RPM_REVISION ?= 0
 
 # used by hack/jenkins/release_build_and_upload.sh and KVM_BUILD_IMAGE, see also BUILD_IMAGE below
-GO_VERSION ?= 1.16.4
+GO_VERSION ?= 1.16.6
 
 # replace "x.y.0" => "x.y". kube-cross and golang.org/dl use different formats for x.y.0 go versions
 KVM_GO_VERSION ?= $(GO_VERSION:.0=)
@@ -958,6 +958,12 @@ help:
 	@grep -h -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
 
 
+
+.PHONY: update-golang-version
+update-golang-version:
+	(cd hack/update/golang_version && \
+	 go run update_golang_version.go)
+
 .PHONY: update-kubernetes-version
 update-kubernetes-version:
 	(cd hack/update/kubernetes_version && \

hack/update/golang_version/update_golang_version.go

@@ -80,7 +80,17 @@ var (
 				`GO_VERSION: '.*`: `GO_VERSION: '{{.StableVersion}}'`,
 			},
 		},
-		".github/workflows/update_k8s_versions.yml": {
+		".github/workflows/update-k8s-versions.yml": {
+			Replace: map[string]string{
+				`GO_VERSION: '.*`: `GO_VERSION: '{{.StableVersion}}'`,
+			},
+		},
+		".github/workflows/update-golang-version.yml": {
+			Replace: map[string]string{
+				`GO_VERSION: '.*`: `GO_VERSION: '{{.StableVersion}}'`,
+			},
+		},
+		".github/workflows/time-to-k8s-public-chart.yml": {
 			Replace: map[string]string{
 				`GO_VERSION: '.*`: `GO_VERSION: '{{.StableVersion}}'`,
 			},
@@ -90,17 +100,6 @@ var (
 				`GO_VERSION: '.*`: `GO_VERSION: '{{.StableVersion}}'`,
 			},
 		},
-		".github/workflows/time-to-k8s-public-chart.yaml": {
-			Replace: map[string]string{
-				`GO_VERSION: '.*`: `GO_VERSION: '{{.StableVersion}}'`,
-			},
-		},
-		".travis.yml": {
-			Replace: map[string]string{
-				`go:\n  - .*`: `go:{{printf "\n  - %s" .StableVersion}}`,
-				`go: .*`:      `go: {{.StableVersion}}`,
-			},
-		},
 		"go.mod": {
 			Replace: map[string]string{
 				`(?m)^go .*`: `go {{.StableVersionMM}}`,
@@ -113,7 +112,8 @@ var (
 		},
 		"Makefile": {
 			Replace: map[string]string{
-				`GO_VERSION \?= .*`: `GO_VERSION ?= {{.StableVersion}}`,
+				// searching for 1.* so it does NOT match "KVM_GO_VERSION ?= $(GO_VERSION:.0=)" in the Makefile
+				`GO_VERSION \?= 1.*`: `GO_VERSION ?= {{.StableVersion}}`,
 			},
 		},
 	}