forked from giantswarm/operatorkit
/
wrapper.go
187 lines (159 loc) · 3.94 KB
/
wrapper.go
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package example
import (
"context"
"os"
"strings"
"time"
"github.com/LeXFReeMan/k8sclient/v7/pkg/k8sclient"
"github.com/giantswarm/microerror"
"github.com/giantswarm/micrologger"
corev1 "k8s.io/api/core/v1"
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/yaml"
v1 "github.com/LeXFReeMan/operatorkit/v7/api/v1"
"github.com/LeXFReeMan/operatorkit/v7/integration/env"
"github.com/LeXFReeMan/operatorkit/v7/pkg/controller"
"github.com/LeXFReeMan/operatorkit/v7/pkg/resource"
)
type Config struct {
Resources []resource.Interface
Name string
Namespace string
}
type Wrapper struct {
controller *controller.Controller
ctrlClient client.Client
}
func New(config Config) (*Wrapper, error) {
var err error
var newLogger micrologger.Logger
{
c := micrologger.Config{}
newLogger, err = micrologger.New(c)
if err != nil {
return nil, microerror.Mask(err)
}
}
var k8sClient *k8sclient.Clients
{
c := k8sclient.ClientsConfig{
Logger: newLogger,
KubeConfigPath: env.KubeConfigPath(),
}
k8sClient, err = k8sclient.NewClients(c)
if err != nil {
return nil, microerror.Mask(err)
}
}
var newController *controller.Controller
{
c := controller.Config{
K8sClient: k8sClient,
Logger: newLogger,
Resources: config.Resources,
Namespace: config.Namespace,
NewRuntimeObjectFunc: func() client.Object {
return new(v1.Example)
},
Selector: labels.Everything(),
Name: config.Name,
ResyncPeriod: 10 * time.Second,
}
newController, err = controller.New(c)
if err != nil {
return nil, microerror.Mask(err)
}
}
wrapper := &Wrapper{
controller: newController,
ctrlClient: k8sClient.CtrlClient(),
}
return wrapper, nil
}
func (w Wrapper) Controller() *controller.Controller {
return w.controller
}
func (w Wrapper) MustSetup(ctx context.Context, namespace string) {
w.MustTeardown(ctx, namespace)
ns := corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: namespace,
},
}
err := w.ctrlClient.Create(ctx, &ns)
if errors.IsAlreadyExists(err) {
// fall though
} else if err != nil {
panic(err)
}
crdYAML, err := os.ReadFile("../../../config/crd/testing.giantswarm.io_examples.yaml")
if err != nil {
panic(microerror.JSON(err))
}
var crd apiextensionsv1.CustomResourceDefinition
err = yaml.Unmarshal(crdYAML, &crd)
if err != nil {
panic(microerror.JSON(err))
}
err = w.ctrlClient.Create(ctx, &crd)
if errors.IsAlreadyExists(err) {
// fall though
} else if err != nil {
panic(err)
}
}
func (w Wrapper) MustTeardown(ctx context.Context, namespace string) {
var crd apiextensionsv1.CustomResourceDefinition
err := w.ctrlClient.Get(ctx, client.ObjectKey{
Name: "examples.testing.giantswarm.io",
}, &crd)
if errors.IsNotFound(err) {
// fall though
} else if err != nil {
panic(err)
} else {
var existing v1.ExampleList
err = w.ctrlClient.List(ctx, &existing)
if err != nil {
panic(err)
}
for _, item := range existing.Items {
var filteredFinalizers []string
for _, finalizer := range item.Finalizers {
if !strings.HasPrefix(finalizer, "operatorkit.giantswarm.io") {
filteredFinalizers = append(filteredFinalizers, finalizer)
}
}
if len(filteredFinalizers) != len(item.Finalizers) {
item.Finalizers = filteredFinalizers
err = w.ctrlClient.Update(ctx, &item) //nolint:gosec
if errors.IsNotFound(err) {
// fall though
} else if err != nil {
panic(err)
}
}
}
err = w.ctrlClient.Delete(ctx, &crd)
if errors.IsNotFound(err) {
// fall though
} else if err != nil {
panic(err)
}
}
ns := corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: namespace,
},
}
err = w.ctrlClient.Delete(ctx, &ns)
if errors.IsNotFound(err) {
// fall though
} else if err != nil {
panic(err)
}
}