Merge pull request #2003 from lunarway/bump-go-1-16

Update to Go 1.16

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
     - name: Set up Go 1.x
       uses: actions/setup-go@v2
       with:
-        go-version: ^1.15
+        go-version: ^1.16
       id: go
 
     - name: Check out code into the Go module directory

Dockerfile

@@ -14,7 +14,7 @@
 
 # builder image
 ARG ARCH
-FROM golang:1.15 as builder
+FROM golang:1.16 as builder
 ARG ARCH
 
 WORKDIR /sigs.k8s.io/external-dns

Dockerfile.mini

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.15 as builder
+FROM golang:1.16 as builder
 
 WORKDIR /sigs.k8s.io/external-dns
 

docs/contributing/getting-started.md

 # Quick Start
 
 - [Git](https://git-scm.com/downloads)
-- [Go 1.15+](https://golang.org/dl/)
+- [Go 1.16+](https://golang.org/dl/)
 - [Go modules](https://github.com/golang/go/wiki/Modules)
 - [golangci-lint](https://github.com/golangci/golangci-lint)
 - [Docker](https://docs.docker.com/install/)

go.mod

 module sigs.k8s.io/external-dns
 
-go 1.15
+go 1.16
 
 require (
 	cloud.google.com/go v0.50.0