ci: Add linter for the samples scaffolded under docs

This commit change the action to add linter for the samples scaffolded under docs

Signed-off-by: Jongwoo Han <jongwooo.han@gmail.com>

.github/workflows/lint-sample.yml

@@ -16,7 +16,10 @@ jobs:
         folder: [
           "testdata/project-v4",
           "testdata/project-v4-with-plugins",
-          "testdata/project-v4-multigroup"
+          "testdata/project-v4-multigroup",
+          "docs/book/src/cronjob-tutorial/testdata/project",
+          "docs/book/src/getting-started/testdata/project",
+          "docs/book/src/multiversion-tutorial/testdata/project"
         ]
     if: (github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository)
     steps:

docs/book/src/cronjob-tutorial/testdata/project/internal/controller/cronjob_controller.go

@@ -28,15 +28,16 @@ import (
 	"sort"
 	"time"
 
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/log"
+
 	"github.com/robfig/cron"
 	kbatch "k8s.io/api/batch/v1"
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	ref "k8s.io/client-go/tools/reference"
-	ctrl "sigs.k8s.io/controller-runtime"
-	"sigs.k8s.io/controller-runtime/pkg/client"
-	"sigs.k8s.io/controller-runtime/pkg/log"
 
 	batchv1 "tutorial.kubebuilder.io/project/api/v1"
 )
@@ -96,6 +97,7 @@ var (
 //
 // For more details, check Reconcile and its Result here:
 // - https://pkg.go.dev/sigs.k8s.io/controller-runtime@v0.19.1/pkg/reconcile
+// nolint:gocyclo
 func (r *CronJobReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
 	log := log.FromContext(ctx)
 

docs/book/src/cronjob-tutorial/testdata/project/internal/controller/cronjob_controller_test.go

@@ -129,7 +129,7 @@ var _ = Describe("CronJob controller", func() {
 			By("By checking the CronJob has zero active Jobs")
 			Consistently(func(g Gomega) {
 				g.Expect(k8sClient.Get(ctx, cronjobLookupKey, createdCronjob)).To(Succeed())
-				g.Expect(createdCronjob.Status.Active).To(HaveLen(0))
+				g.Expect(createdCronjob.Status.Active).To(HaveLen(0)) // nolint:ginkgolinter
 			}, duration, interval).Should(Succeed())
 			/*
 				Next, we actually create a stubbed Job that will belong to our CronJob, as well as its downstream template specs.

docs/book/src/cronjob-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook.go

@@ -20,18 +20,20 @@ package v1
 import (
 	"context"
 	"fmt"
+
 	"github.com/robfig/cron"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	validationutils "k8s.io/apimachinery/pkg/util/validation"
 	"k8s.io/apimachinery/pkg/util/validation/field"
 
-	"k8s.io/apimachinery/pkg/runtime"
 	ctrl "sigs.k8s.io/controller-runtime"
 	logf "sigs.k8s.io/controller-runtime/pkg/log"
 	"sigs.k8s.io/controller-runtime/pkg/webhook"
 	"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
 
+	"k8s.io/apimachinery/pkg/runtime"
+
 	batchv1 "tutorial.kubebuilder.io/project/api/v1"
 )
 

docs/book/src/cronjob-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook_test.go

@@ -80,7 +80,7 @@ var _ = Describe("CronJob Webhook", func() {
 			obj.Spec.FailedJobsHistoryLimit = nil     // This should default to 1
 
 			By("calling the Default method to apply defaults")
-			defaulter.Default(ctx, obj)
+			defaulter.Default(ctx, obj) // nolint:errcheck
 
 			By("checking that the default values are set")
 			Expect(obj.Spec.ConcurrencyPolicy).To(Equal(batchv1.AllowConcurrent), "Expected ConcurrencyPolicy to default to AllowConcurrent")
@@ -100,7 +100,7 @@ var _ = Describe("CronJob Webhook", func() {
 			*obj.Spec.FailedJobsHistoryLimit = 2
 
 			By("calling the Default method to apply defaults")
-			defaulter.Default(ctx, obj)
+			defaulter.Default(ctx, obj) // nolint:errcheck
 
 			By("checking that the fields were not overwritten")
 			Expect(obj.Spec.ConcurrencyPolicy).To(Equal(batchv1.ForbidConcurrent), "Expected ConcurrencyPolicy to retain its set value")
@@ -119,7 +119,7 @@ var _ = Describe("CronJob Webhook", func() {
 		})
 
 		It("Should admit creation if the name is valid", func() {
-			obj.ObjectMeta.Name = "valid-cronjob-name"
+			obj.ObjectMeta.Name = "valid-cronjob-name" // nolint:goconst
 			Expect(validator.ValidateCreate(ctx, obj)).To(BeNil(),
 				"Expected name validation to pass for a valid name")
 		})
@@ -132,7 +132,7 @@ var _ = Describe("CronJob Webhook", func() {
 		})
 
 		It("Should admit creation if the schedule is valid", func() {
-			obj.Spec.Schedule = "*/5 * * * *"
+			obj.Spec.Schedule = "*/5 * * * *" // nolint:goconst
 			Expect(validator.ValidateCreate(ctx, obj)).To(BeNil(),
 				"Expected spec validation to pass for a valid schedule")
 		})

docs/book/src/getting-started/testdata/project/internal/controller/memcached_controller.go

@@ -19,20 +19,22 @@ package controller
 import (
 	"context"
 	"fmt"
+	"time"
+
 	appsv1 "k8s.io/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/api/meta"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/utils/ptr"
-	"time"
 
-	"k8s.io/apimachinery/pkg/runtime"
 	ctrl "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/log"
 
+	"k8s.io/apimachinery/pkg/runtime"
+
 	cachev1alpha1 "example.com/memcached/api/v1alpha1"
 )
 
@@ -89,7 +91,7 @@ func (r *MemcachedReconciler) Reconcile(ctx context.Context, req ctrl.Request) (
 	}
 
 	// Let's just set the status as Unknown when no status is available
-	if memcached.Status.Conditions == nil || len(memcached.Status.Conditions) == 0 {
+	if memcached.Status.Conditions == nil || len(memcached.Status.Conditions) == 0 { // nolint:gosimple
 		meta.SetStatusCondition(&memcached.Status.Conditions, metav1.Condition{Type: typeAvailableMemcached, Status: metav1.ConditionUnknown, Reason: "Reconciling", Message: "Starting reconciliation"})
 		if err = r.Status().Update(ctx, memcached); err != nil {
 			log.Error(err, "Failed to update Memcached status")

docs/book/src/multiversion-tutorial/testdata/project/internal/controller/cronjob_controller.go

@@ -28,15 +28,16 @@ import (
 	"sort"
 	"time"
 
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/log"
+
 	"github.com/robfig/cron"
 	kbatch "k8s.io/api/batch/v1"
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	ref "k8s.io/client-go/tools/reference"
-	ctrl "sigs.k8s.io/controller-runtime"
-	"sigs.k8s.io/controller-runtime/pkg/client"
-	"sigs.k8s.io/controller-runtime/pkg/log"
 
 	batchv1 "tutorial.kubebuilder.io/project/api/v1"
 )
@@ -96,6 +97,7 @@ var (
 //
 // For more details, check Reconcile and its Result here:
 // - https://pkg.go.dev/sigs.k8s.io/controller-runtime@v0.19.1/pkg/reconcile
+// nolint:gocyclo
 func (r *CronJobReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
 	log := log.FromContext(ctx)
 

docs/book/src/multiversion-tutorial/testdata/project/internal/controller/cronjob_controller_test.go

@@ -129,7 +129,7 @@ var _ = Describe("CronJob controller", func() {
 			By("By checking the CronJob has zero active Jobs")
 			Consistently(func(g Gomega) {
 				g.Expect(k8sClient.Get(ctx, cronjobLookupKey, createdCronjob)).To(Succeed())
-				g.Expect(createdCronjob.Status.Active).To(HaveLen(0))
+				g.Expect(createdCronjob.Status.Active).To(HaveLen(0)) // nolint:ginkgolinter
 			}, duration, interval).Should(Succeed())
 			/*
 				Next, we actually create a stubbed Job that will belong to our CronJob, as well as its downstream template specs.

docs/book/src/multiversion-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook.go

@@ -20,18 +20,20 @@ package v1
 import (
 	"context"
 	"fmt"
+
 	"github.com/robfig/cron"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	validationutils "k8s.io/apimachinery/pkg/util/validation"
 	"k8s.io/apimachinery/pkg/util/validation/field"
 
-	"k8s.io/apimachinery/pkg/runtime"
 	ctrl "sigs.k8s.io/controller-runtime"
 	logf "sigs.k8s.io/controller-runtime/pkg/log"
 	"sigs.k8s.io/controller-runtime/pkg/webhook"
 	"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
 
+	"k8s.io/apimachinery/pkg/runtime"
+
 	batchv1 "tutorial.kubebuilder.io/project/api/v1"
 )
 

docs/book/src/multiversion-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook_test.go

@@ -80,7 +80,7 @@ var _ = Describe("CronJob Webhook", func() {
 			obj.Spec.FailedJobsHistoryLimit = nil     // This should default to 1
 
 			By("calling the Default method to apply defaults")
-			defaulter.Default(ctx, obj)
+			defaulter.Default(ctx, obj) // nolint:errcheck
 
 			By("checking that the default values are set")
 			Expect(obj.Spec.ConcurrencyPolicy).To(Equal(batchv1.AllowConcurrent), "Expected ConcurrencyPolicy to default to AllowConcurrent")
@@ -100,7 +100,7 @@ var _ = Describe("CronJob Webhook", func() {
 			*obj.Spec.FailedJobsHistoryLimit = 2
 
 			By("calling the Default method to apply defaults")
-			defaulter.Default(ctx, obj)
+			defaulter.Default(ctx, obj) //nolint:errcheck
 
 			By("checking that the fields were not overwritten")
 			Expect(obj.Spec.ConcurrencyPolicy).To(Equal(batchv1.ForbidConcurrent), "Expected ConcurrencyPolicy to retain its set value")
@@ -119,7 +119,7 @@ var _ = Describe("CronJob Webhook", func() {
 		})
 
 		It("Should admit creation if the name is valid", func() {
-			obj.ObjectMeta.Name = "valid-cronjob-name"
+			obj.ObjectMeta.Name = "valid-cronjob-name" // nolint:goconst
 			Expect(validator.ValidateCreate(ctx, obj)).To(BeNil(),
 				"Expected name validation to pass for a valid name")
 		})
@@ -132,7 +132,7 @@ var _ = Describe("CronJob Webhook", func() {
 		})
 
 		It("Should admit creation if the schedule is valid", func() {
-			obj.Spec.Schedule = "*/5 * * * *"
+			obj.Spec.Schedule = "*/5 * * * *" // nolint:goconst
 			Expect(validator.ValidateCreate(ctx, obj)).To(BeNil(),
 				"Expected spec validation to pass for a valid schedule")
 		})