Update go version in kubebuilder

Signed-off-by: Sujil02 <sujil.shah@gmail.com>

.github/workflows/testdata.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v2
         with:
-          go-version: '1.15'
+          go-version: '1.16'
       - name: Remove pre-installed kustomize
         # This step is needed as the following one tries to remove
         # kustomize for each test but has no permission to do so

.github/workflows/unit-tests.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v2
         with:
-          go-version: '1.15'
+          go-version: '1.16'
       # This step is needed as the following one tries to remove
       # kustomize for each test but has no permission to do so
       - name: Remove pre-installed kustomize
@@ -54,7 +54,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v2
         with:
-          go-version: '1.15'
+          go-version: '1.16'
       - name: Generate the coverage output
         run: make test-coverage
       - name: Send the coverage output

docs/book/src/component-config-tutorial/testdata/project/Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.15 as builder
+FROM golang:1.16 as builder
 
 WORKDIR /workspace
 # Copy the Go Modules manifests
@@ -15,7 +15,7 @@ COPY apis/ apis/
 COPY controllers/ controllers/
 
 # Build
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on go build -a -o manager main.go
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details

docs/book/src/component-config-tutorial/testdata/project/go.mod

@@ -1,6 +1,6 @@
 module tutorial.kubebuilder.io/project
 
-go 1.15
+go 1.16
 
 require (
 	github.com/go-logr/logr v0.2.1

docs/book/src/cronjob-tutorial/testdata/project/Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.15 as builder
+FROM golang:1.16 as builder
 
 WORKDIR /workspace
 # Copy the Go Modules manifests
@@ -15,7 +15,7 @@ COPY api/ api/
 COPY controllers/ controllers/
 
 # Build
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on go build -a -o manager main.go
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details

docs/book/src/cronjob-tutorial/testdata/project/go.mod

@@ -1,6 +1,6 @@
 module tutorial.kubebuilder.io/project
 
-go 1.15
+go 1.16
 
 require (
 	github.com/go-logr/logr v0.3.0

docs/book/src/migration/manually_migration_guide_v2_v3.md

@@ -353,7 +353,7 @@ Ensure that your `go.mod` is using Go version `1.15` and the following dependenc
 ```go
 module example
 
-go 1.15
+go 1.16
 
 require (
 	github.com/go-logr/logr v0.3.0
@@ -377,7 +377,7 @@ FROM golang:1.13 as builder
 With:
 ```
 # Build the manager binary
-FROM golang:1.15 as builder
+FROM golang:1.16 as builder
 ```
 
 ####  Update your Makefile

docs/book/src/migration/v2vsv3.md

@@ -9,7 +9,7 @@ and [kb-releases][kb-releases] release notes.
 
 ## Common changes
 
-v3 projects use Go modules and request Go 1.15+. Dep is no longer supported for dependency management.
+v3 projects use Go modules and request Go 1.16+. Dep is no longer supported for dependency management.
 
 ## Kubebuilder
 

docs/book/src/multiversion-tutorial/testdata/project/Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.15 as builder
+FROM golang:1.16 as builder
 
 WORKDIR /workspace
 # Copy the Go Modules manifests
@@ -15,7 +15,7 @@ COPY api/ api/
 COPY controllers/ controllers/
 
 # Build
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on go build -a -o manager main.go
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details

docs/book/src/multiversion-tutorial/testdata/project/go.mod

@@ -1,6 +1,6 @@
 module tutorial.kubebuilder.io/project
 
-go 1.15
+go 1.16
 
 require (
 	github.com/go-logr/logr v0.3.0

docs/book/utils/go.mod

@@ -1,3 +1,3 @@
 module sigs.k8s.io/kubebuilder/docs/book/utils
 
-go 1.15
+go 1.16

go.mod

@@ -1,9 +1,11 @@
 module sigs.k8s.io/kubebuilder/v3
 
-go 1.15
+go 1.16
+
 
 require (
 	github.com/cloudflare/cfssl v1.5.0 // for `kubebuilder alpha config-gen`
+	github.com/go-logr/logr v0.3.0 // indirect
 	github.com/gobuffalo/flect v0.2.2
 	// TODO: remove this in favor of embed once using 1.16
 	github.com/markbates/pkger v0.17.1 // for `kubebuilder alpha config-gen`
@@ -15,9 +17,10 @@ require (
 	golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e
 	// for `kubebuilder alpha config-gen`
 	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 // indirect
+	k8s.io/api v0.20.2 // indirect
+	k8s.io/apiextensions-apiserver v0.20.1 // indirect
 	k8s.io/apimachinery v0.20.2 // for `kubebuilder alpha config-gen`
 	k8s.io/utils v0.0.0-20210111153108-fddb29f9d009 // indirect
-	sigs.k8s.io/controller-runtime v0.8.3
 	sigs.k8s.io/controller-tools v0.3.0 // for `kubebuilder alpha config-gen`
 	sigs.k8s.io/kustomize/kyaml v0.10.10 // for `kubebuilder alpha config-gen`
 	sigs.k8s.io/yaml v1.2.0