/
mariadbdatabase_controller.go
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/
mariadbdatabase_controller.go
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/*
Copyright 2021.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package controller
import (
"context"
"time"
"github.com/go-logr/logr"
batchv1 "k8s.io/api/batch/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/tools/record"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
openstackv1beta1 "github.com/ianunruh/openstack-operator/api/v1beta1"
"github.com/ianunruh/openstack-operator/pkg/mariadb"
mariadbdatabase "github.com/ianunruh/openstack-operator/pkg/mariadb/database"
"github.com/ianunruh/openstack-operator/pkg/template"
)
// MariaDBDatabaseReconciler reconciles a MariaDBDatabase object
type MariaDBDatabaseReconciler struct {
client.Client
Log logr.Logger
Recorder record.EventRecorder
Scheme *runtime.Scheme
}
//+kubebuilder:rbac:groups=openstack.ospk8s.com,resources=mariadbdatabases,verbs=get;list;watch;create;update;patch;delete
//+kubebuilder:rbac:groups=openstack.ospk8s.com,resources=mariadbdatabases/status,verbs=get;update;patch
//+kubebuilder:rbac:groups=openstack.ospk8s.com,resources=mariadbdatabases/finalizers,verbs=update
//+kubebuilder:rbac:groups=core,resources=secrets,verbs=get;list;watch;create;update;delete
//+kubebuilder:rbac:groups=batch,resources=jobs,verbs=get;list;watch;create;update;delete
// Reconcile is part of the main kubernetes reconciliation loop which aims to
// move the current state of the cluster closer to the desired state.
func (r *MariaDBDatabaseReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
log := r.Log.WithValues("instance", req.NamespacedName)
reporter := mariadbdatabase.NewReporter(r.Recorder)
instance := &openstackv1beta1.MariaDBDatabase{}
err := r.Client.Get(ctx, req.NamespacedName, instance)
if err != nil {
if errors.IsNotFound(err) {
return ctrl.Result{}, nil
}
return ctrl.Result{}, err
}
if mariadbdatabase.ReadyCondition(instance) == nil {
reporter.Pending(instance, nil, "MariaDBDatabasePending", "Waiting for database to be reconciled")
if err := r.Client.Status().Update(ctx, instance); err != nil {
return ctrl.Result{}, err
}
}
deps := template.NewConditionWaiter(log)
cluster := &openstackv1beta1.MariaDB{
ObjectMeta: metav1.ObjectMeta{
Name: instance.Spec.Cluster,
Namespace: instance.Namespace,
},
}
if err := r.Client.Get(ctx, client.ObjectKeyFromObject(cluster), cluster); err != nil {
return ctrl.Result{}, err
}
mariadb.AddReadyCheck(deps, cluster)
if result := deps.Wait(); !result.IsZero() {
return result, nil
}
secret := mariadbdatabase.Secret(instance)
controllerutil.SetControllerReference(instance, secret, r.Scheme)
if err := template.CreateSecret(ctx, r.Client, secret, log); err != nil {
return ctrl.Result{}, err
}
jobs := template.NewJobRunner(ctx, r.Client, log)
jobs.Add(&instance.Status.SetupJobHash,
mariadbdatabase.SetupJob(instance, cluster.Spec.Image, cluster.Name, cluster.Name))
if result, err := jobs.Run(instance); err != nil {
// TODO update pending w/error
return ctrl.Result{}, err
} else if !result.IsZero() {
reporter.Pending(instance, nil, "MariaDBDatabasePending", "Waiting for setup job to complete")
if err := r.Client.Status().Update(ctx, instance); err != nil {
return ctrl.Result{}, err
}
return ctrl.Result{RequeueAfter: 10 * time.Second}, nil
}
condition := mariadbdatabase.ReadyCondition(instance)
if condition.Status == metav1.ConditionFalse {
reporter.Succeeded(instance)
if err := r.Client.Status().Update(ctx, instance); err != nil {
return ctrl.Result{}, err
}
}
return ctrl.Result{}, nil
}
// SetupWithManager sets up the controller with the Manager.
func (r *MariaDBDatabaseReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
For(&openstackv1beta1.MariaDBDatabase{}).
Owns(&batchv1.Job{}).
Owns(&corev1.Secret{}).
Complete(r)
}