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kafkaconnect_controller.go
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/
kafkaconnect_controller.go
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// Copyright (c) 2022 Aiven, Helsinki, Finland. https://aiven.io/
package controllers
import (
"context"
"fmt"
"strconv"
"github.com/aiven/aiven-go-client"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/aiven/aiven-operator/api/v1alpha1"
)
// KafkaConnectReconciler reconciles a KafkaConnect object
type KafkaConnectReconciler struct {
Controller
}
type KafkaConnectHandler struct{}
// +kubebuilder:rbac:groups=aiven.io,resources=kafkaconnects,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=aiven.io,resources=kafkaconnects/status,verbs=get;update;patch
func (r *KafkaConnectReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
return r.reconcileInstance(ctx, req, KafkaConnectHandler{}, &v1alpha1.KafkaConnect{})
}
func (r *KafkaConnectReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
For(&v1alpha1.KafkaConnect{}).
Complete(r)
}
func (h KafkaConnectHandler) exists(avn *aiven.Client, i client.Object) (bool, error) {
kc, err := h.convert(i)
if err != nil {
return false, err
}
s, err := avn.Services.Get(kc.Spec.Project, kc.Name)
if aiven.IsNotFound(err) {
return false, nil
}
return s != nil, nil
}
func (h KafkaConnectHandler) createOrUpdate(avn *aiven.Client, i client.Object, refs []client.Object) error {
kc, err := h.convert(i)
if err != nil {
return err
}
projectVPCID := kc.Spec.ProjectVPCID
if projectVPCID == "" {
if p := v1alpha1.FindProjectVPC(refs); p != nil {
projectVPCID = p.Status.ID
}
}
exits, err := h.exists(avn, i)
if err != nil {
return err
}
var reason string
if !exits {
_, err := avn.Services.Create(kc.Spec.Project, aiven.CreateServiceRequest{
Cloud: kc.Spec.CloudName,
MaintenanceWindow: getMaintenanceWindow(
kc.Spec.MaintenanceWindowDow,
kc.Spec.MaintenanceWindowTime),
Plan: kc.Spec.Plan,
ProjectVPCID: toOptionalStringPointer(projectVPCID),
ServiceName: kc.Name,
ServiceType: "kafka_connect",
UserConfig: UserConfigurationToAPI(kc.Spec.UserConfig).(map[string]interface{}),
ServiceIntegrations: nil,
})
if err != nil {
return err
}
reason = "Created"
} else {
_, err := avn.Services.Update(kc.Spec.Project, kc.Name, aiven.UpdateServiceRequest{
Cloud: kc.Spec.CloudName,
MaintenanceWindow: getMaintenanceWindow(
kc.Spec.MaintenanceWindowDow,
kc.Spec.MaintenanceWindowTime),
Plan: kc.Spec.Plan,
ProjectVPCID: toOptionalStringPointer(projectVPCID),
UserConfig: UserConfigurationToAPI(kc.Spec.UserConfig).(map[string]interface{}),
Powered: true,
})
if err != nil {
return err
}
reason = "Updated"
}
meta.SetStatusCondition(&kc.Status.Conditions,
getInitializedCondition(reason,
"Instance was created or update on Aiven side"))
meta.SetStatusCondition(&kc.Status.Conditions,
getRunningCondition(metav1.ConditionUnknown, reason,
"Instance was created or update on Aiven side, status remains unknown"))
metav1.SetMetaDataAnnotation(&kc.ObjectMeta,
processedGenerationAnnotation, strconv.FormatInt(kc.GetGeneration(), formatIntBaseDecimal))
return nil
}
func (h KafkaConnectHandler) delete(avn *aiven.Client, i client.Object) (bool, error) {
kc, err := h.convert(i)
if err != nil {
return false, err
}
if err := avn.Services.Delete(kc.Spec.Project, kc.Name); err != nil {
if !aiven.IsNotFound(err) {
return false, fmt.Errorf("aiven client delete KafkaConnect error: %w", err)
}
}
return true, nil
}
func (h KafkaConnectHandler) get(avn *aiven.Client, i client.Object) (*corev1.Secret, error) {
kc, err := h.convert(i)
if err != nil {
return nil, err
}
s, err := avn.Services.Get(kc.Spec.Project, kc.Name)
if err != nil {
return nil, err
}
kc.Status.State = s.State
if s.State == "RUNNING" {
meta.SetStatusCondition(&kc.Status.Conditions,
getRunningCondition(metav1.ConditionTrue, "CheckRunning",
"Instance is running on Aiven side"))
metav1.SetMetaDataAnnotation(&kc.ObjectMeta, instanceIsRunningAnnotation, "true")
}
return nil, nil
}
func (h KafkaConnectHandler) convert(i client.Object) (*v1alpha1.KafkaConnect, error) {
kc, ok := i.(*v1alpha1.KafkaConnect)
if !ok {
return nil, fmt.Errorf("cannot convert object to KafkaConnect")
}
return kc, nil
}
func (h KafkaConnectHandler) checkPreconditions(_ *aiven.Client, _ client.Object) (bool, error) {
return true, nil
}