seaweedfs-operator/controllers/controller_master.go

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package controllers
import (
"context"
"time"
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appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/runtime"
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ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
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seaweedv1 "github.com/seaweedfs/seaweedfs-operator/api/v1"
"github.com/seaweedfs/seaweedfs-operator/controllers/label"
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)
func (r *SeaweedReconciler) ensureMaster(seaweedCR *seaweedv1.Seaweed) (done bool, result ctrl.Result, err error) {
_ = context.Background()
_ = r.Log.WithValues("seaweed", seaweedCR.Name)
if done, result, err = r.ensureMasterPeerService(seaweedCR); done {
return
}
if done, result, err = r.ensureMasterService(seaweedCR); done {
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return
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}
if done, result, err = r.ensureMasterConfigMap(seaweedCR); done {
return
}
if done, result, err = r.ensureMasterStatefulSet(seaweedCR); done {
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return
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}
if done, result, err = r.waitForMasterStatefulSet(seaweedCR); done {
return
}
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return
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}
func (r *SeaweedReconciler) waitForMasterStatefulSet(seaweedCR *seaweedv1.Seaweed) (bool, ctrl.Result, error) {
log := r.Log.WithValues("sw-master-statefulset", seaweedCR.Name)
podList := &corev1.PodList{}
listOpts := []client.ListOption{
client.InNamespace(seaweedCR.Namespace),
client.MatchingLabels(labelsForMaster(seaweedCR.Name)),
}
if err := r.List(context.Background(), podList, listOpts...); err != nil {
log.Error(err, "Failed to list master pods", "namespace", seaweedCR.Namespace, "name", seaweedCR.Name)
return true, ctrl.Result{RequeueAfter: 3 * time.Second}, nil
}
log.Info("pods", "count", len(podList.Items))
runningCounter := 0
for _, pod := range podList.Items {
if pod.Status.Phase == corev1.PodRunning {
for _, containerStatus := range pod.Status.ContainerStatuses {
if containerStatus.Image == seaweedCR.Spec.Image {
runningCounter++
break
}
}
} else {
log.Info("pod", "name", pod.Name, "status", pod.Status)
}
}
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if runningCounter < len(podList.Items)/2+1 {
log.Info("some masters are not ready", "missing", len(podList.Items)-runningCounter)
return true, ctrl.Result{RequeueAfter: 3 * time.Second}, nil
}
log.Info("masters are ready")
return ReconcileResult(nil)
}
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func (r *SeaweedReconciler) ensureMasterStatefulSet(seaweedCR *seaweedv1.Seaweed) (bool, ctrl.Result, error) {
log := r.Log.WithValues("sw-master-statefulset", seaweedCR.Name)
masterStatefulSet := r.createMasterStatefulSet(seaweedCR)
if err := controllerutil.SetControllerReference(seaweedCR, masterStatefulSet, r.Scheme); err != nil {
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return ReconcileResult(err)
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}
_, err := r.CreateOrUpdate(masterStatefulSet, func(existing, desired runtime.Object) error {
existingStatefulSet := existing.(*appsv1.StatefulSet)
desiredStatefulSet := desired.(*appsv1.StatefulSet)
existingStatefulSet.Spec.Template.Spec = desiredStatefulSet.Spec.Template.Spec
return nil
})
log.Info("ensure master stateful set " + masterStatefulSet.Name)
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return ReconcileResult(err)
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}
func (r *SeaweedReconciler) ensureMasterConfigMap(seaweedCR *seaweedv1.Seaweed) (bool, ctrl.Result, error) {
log := r.Log.WithValues("sw-master-configmap", seaweedCR.Name)
masterConfigMap := r.createMasterConfigMap(seaweedCR)
if err := controllerutil.SetControllerReference(seaweedCR, masterConfigMap, r.Scheme); err != nil {
return ReconcileResult(err)
}
_, err := r.CreateOrUpdateConfigMap(masterConfigMap)
log.Info("Get master ConfigMap " + masterConfigMap.Name)
return ReconcileResult(err)
}
func (r *SeaweedReconciler) ensureMasterService(seaweedCR *seaweedv1.Seaweed) (bool, ctrl.Result, error) {
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log := r.Log.WithValues("sw-master-service", seaweedCR.Name)
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masterService := r.createMasterService(seaweedCR)
if err := controllerutil.SetControllerReference(seaweedCR, masterService, r.Scheme); err != nil {
return ReconcileResult(err)
}
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_, err := r.CreateOrUpdateService(masterService)
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log.Info("Get master service " + masterService.Name)
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return ReconcileResult(err)
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}
func (r *SeaweedReconciler) ensureMasterPeerService(seaweedCR *seaweedv1.Seaweed) (bool, ctrl.Result, error) {
log := r.Log.WithValues("sw-master-peer-service", seaweedCR.Name)
masterPeerService := r.createMasterPeerService(seaweedCR)
if err := controllerutil.SetControllerReference(seaweedCR, masterPeerService, r.Scheme); err != nil {
return ReconcileResult(err)
}
_, err := r.CreateOrUpdateService(masterPeerService)
log.Info("Get master peer service " + masterPeerService.Name)
return ReconcileResult(err)
}
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func labelsForMaster(name string) map[string]string {
return map[string]string{
label.ManagedByLabelKey: "seaweedfs-operator",
label.NameLabelKey: "seaweedfs",
label.ComponentLabelKey: "master",
label.InstanceLabelKey: name,
}
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}