/
statefulset.go
61 lines (51 loc) · 1.66 KB
/
statefulset.go
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package checker
import (
"context"
"errors"
"fmt"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/Ladicle/kubectl-check/pkg/pod"
"github.com/Ladicle/kubectl-check/pkg/pritty"
)
// NewStatefulSetChecker creates Statefulset Checker resource.
func NewStatefulSetChecker(opts *Options) Checker {
return &StatefulSetChecker{Options: opts}
}
// StatefulSetChecker checks a target statefulset resource.
type StatefulSetChecker struct {
*Options
}
func (ssc *StatefulSetChecker) Check(printer *pritty.Printer) error {
sts, err := ssc.getTarget()
if err != nil {
return err
}
if sts.Status.ReadyReplicas == sts.Status.Replicas {
fmt.Fprintf(printer.IOStreams.Out, "%v is ready\n", ssc.Target)
return nil
}
fmt.Fprintf(printer.IOStreams.Out, "Deployment %q is not ready (%d/%d):\n\n",
ssc.Target, sts.Status.ReadyReplicas, sts.Status.Replicas)
pods, err := ssc.getLatestPods(sts)
if err != nil {
return err
}
return pod.ReportPodsDetail(ssc.Clientset, printer, pods.Items)
}
func (ssc *StatefulSetChecker) getTarget() (*appsv1.StatefulSet, error) {
return ssc.Clientset.AppsV1().StatefulSets(ssc.Target.Namespace).
Get(context.Background(), ssc.Target.Name, metav1.GetOptions{})
}
func (ssc *StatefulSetChecker) getLatestPods(sts *appsv1.StatefulSet) (*corev1.PodList, error) {
if sts.Status.UpdateRevision == "" {
return nil, errors.New(".state.updateRevision is empty")
}
opt := metav1.ListOptions{
LabelSelector: fmt.Sprintf("%v=%v",
appsv1.ControllerRevisionHashLabelKey,
sts.Status.UpdateRevision),
}
return ssc.Clientset.CoreV1().Pods(sts.Namespace).List(context.Background(), opt)
}