forked from argoproj/gitops-engine
/
health_statefulset.go
187 lines (181 loc) · 8.39 KB
/
health_statefulset.go
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package health
import (
"fmt"
"github.com/argoproj/gitops-engine/pkg/utils/kube"
appsv1 "k8s.io/api/apps/v1"
appsv1beta1 "k8s.io/api/apps/v1beta1"
appsv1beta2 "k8s.io/api/apps/v1beta2"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
)
func getStatefulSetHealth(obj *unstructured.Unstructured) (*HealthStatus, error) {
gvk := obj.GroupVersionKind()
switch gvk {
case appsv1.SchemeGroupVersion.WithKind(kube.StatefulSetKind):
var sts appsv1.StatefulSet
err := runtime.DefaultUnstructuredConverter.FromUnstructured(obj.Object, &sts)
if err != nil {
return nil, fmt.Errorf("failed to convert unstructured StatefulSet to typed: %v", err)
}
return getAppsv1StatefulSetHealth(&sts)
case appsv1beta1.SchemeGroupVersion.WithKind(kube.StatefulSetKind):
var sts appsv1beta1.StatefulSet
err := runtime.DefaultUnstructuredConverter.FromUnstructured(obj.Object, &sts)
if err != nil {
return nil, fmt.Errorf("failed to convert unstructured StatefulSet to typed: %v", err)
}
return getAppsv1beta1StatefulSetHealth(&sts)
case appsv1beta2.SchemeGroupVersion.WithKind(kube.StatefulSetKind):
var sts appsv1beta2.StatefulSet
err := runtime.DefaultUnstructuredConverter.FromUnstructured(obj.Object, &sts)
if err != nil {
return nil, fmt.Errorf("failed to convert unstructured StatefulSet to typed: %v", err)
}
return getAppsv1beta2StatefulSetHealth(&sts)
default:
return nil, fmt.Errorf("unsupported StatefulSet GVK: %s", gvk)
}
}
func getAppsv1StatefulSetHealth(sts *appsv1.StatefulSet) (*HealthStatus, error) {
// Borrowed at kubernetes/kubectl/rollout_status.go https://github.com/kubernetes/kubernetes/blob/5232ad4a00ec93942d0b2c6359ee6cd1201b46bc/pkg/kubectl/rollout_status.go#L131
if sts.Status.ObservedGeneration == 0 || sts.Generation > sts.Status.ObservedGeneration {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: "Waiting for statefulset spec update to be observed...",
}, nil
}
if sts.Spec.Replicas != nil && sts.Status.ReadyReplicas < *sts.Spec.Replicas {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("Waiting for %d pods to be ready...", *sts.Spec.Replicas-sts.Status.ReadyReplicas),
}, nil
}
if sts.Spec.UpdateStrategy.Type == appsv1.RollingUpdateStatefulSetStrategyType && sts.Spec.UpdateStrategy.RollingUpdate != nil {
if sts.Spec.Replicas != nil && sts.Spec.UpdateStrategy.RollingUpdate.Partition != nil {
if sts.Status.UpdatedReplicas < (*sts.Spec.Replicas - *sts.Spec.UpdateStrategy.RollingUpdate.Partition) {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("Waiting for partitioned roll out to finish: %d out of %d new pods have been updated...",
sts.Status.UpdatedReplicas, (*sts.Spec.Replicas - *sts.Spec.UpdateStrategy.RollingUpdate.Partition)),
}, nil
}
}
return &HealthStatus{
Status: HealthStatusHealthy,
Message: fmt.Sprintf("partitioned roll out complete: %d new pods have been updated...", sts.Status.UpdatedReplicas),
}, nil
}
if sts.Spec.UpdateStrategy.Type == appsv1.OnDeleteStatefulSetStrategyType {
return &HealthStatus{
Status: HealthStatusHealthy,
Message: fmt.Sprintf("statefulset has %d ready pods", sts.Status.ReadyReplicas),
}, nil
}
if sts.Status.UpdateRevision != sts.Status.CurrentRevision {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("waiting for statefulset rolling update to complete %d pods at revision %s...", sts.Status.UpdatedReplicas, sts.Status.UpdateRevision),
}, nil
}
return &HealthStatus{
Status: HealthStatusHealthy,
Message: fmt.Sprintf("statefulset rolling update complete %d pods at revision %s...", sts.Status.CurrentReplicas, sts.Status.CurrentRevision),
}, nil
}
func getAppsv1beta1StatefulSetHealth(sts *appsv1beta1.StatefulSet) (*HealthStatus, error) {
// Borrowed at kubernetes/kubectl/rollout_status.go https://github.com/kubernetes/kubernetes/blob/5232ad4a00ec93942d0b2c6359ee6cd1201b46bc/pkg/kubectl/rollout_status.go#L131
observedGeneration := sts.Status.ObservedGeneration
if observedGeneration == nil {
var x int64
observedGeneration = &x
}
if *observedGeneration == 0 || sts.Generation > *observedGeneration {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: "Waiting for statefulset spec update to be observed...",
}, nil
}
if sts.Spec.Replicas != nil && sts.Status.ReadyReplicas < *sts.Spec.Replicas {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("Waiting for %d pods to be ready...", *sts.Spec.Replicas-sts.Status.ReadyReplicas),
}, nil
}
if sts.Spec.UpdateStrategy.Type == appsv1beta1.RollingUpdateStatefulSetStrategyType && sts.Spec.UpdateStrategy.RollingUpdate != nil {
if sts.Spec.Replicas != nil && sts.Spec.UpdateStrategy.RollingUpdate.Partition != nil {
if sts.Status.UpdatedReplicas < (*sts.Spec.Replicas - *sts.Spec.UpdateStrategy.RollingUpdate.Partition) {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("Waiting for partitioned roll out to finish: %d out of %d new pods have been updated...",
sts.Status.UpdatedReplicas, (*sts.Spec.Replicas - *sts.Spec.UpdateStrategy.RollingUpdate.Partition)),
}, nil
}
}
return &HealthStatus{
Status: HealthStatusHealthy,
Message: fmt.Sprintf("partitioned roll out complete: %d new pods have been updated...", sts.Status.UpdatedReplicas),
}, nil
}
if sts.Spec.UpdateStrategy.Type == appsv1beta1.OnDeleteStatefulSetStrategyType {
return &HealthStatus{
Status: HealthStatusHealthy,
Message: fmt.Sprintf("statefulset has %d ready pods", sts.Status.ReadyReplicas),
}, nil
}
if sts.Status.UpdateRevision != sts.Status.CurrentRevision {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("waiting for statefulset rolling update to complete %d pods at revision %s...", sts.Status.UpdatedReplicas, sts.Status.UpdateRevision),
}, nil
}
return &HealthStatus{
Status: HealthStatusHealthy,
Message: fmt.Sprintf("statefulset rolling update complete %d pods at revision %s...", sts.Status.CurrentReplicas, sts.Status.CurrentRevision),
}, nil
}
func getAppsv1beta2StatefulSetHealth(sts *appsv1beta2.StatefulSet) (*HealthStatus, error) {
// Borrowed at kubernetes/kubectl/rollout_status.go https://github.com/kubernetes/kubernetes/blob/5232ad4a00ec93942d0b2c6359ee6cd1201b46bc/pkg/kubectl/rollout_status.go#L131
if sts.Status.ObservedGeneration == 0 || sts.Generation > sts.Status.ObservedGeneration {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: "Waiting for statefulset spec update to be observed...",
}, nil
}
if sts.Spec.Replicas != nil && sts.Status.ReadyReplicas < *sts.Spec.Replicas {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("Waiting for %d pods to be ready...", *sts.Spec.Replicas-sts.Status.ReadyReplicas),
}, nil
}
if sts.Spec.UpdateStrategy.Type == appsv1beta2.RollingUpdateStatefulSetStrategyType && sts.Spec.UpdateStrategy.RollingUpdate != nil {
if sts.Spec.Replicas != nil && sts.Spec.UpdateStrategy.RollingUpdate.Partition != nil {
if sts.Status.UpdatedReplicas < (*sts.Spec.Replicas - *sts.Spec.UpdateStrategy.RollingUpdate.Partition) {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("Waiting for partitioned roll out to finish: %d out of %d new pods have been updated...",
sts.Status.UpdatedReplicas, (*sts.Spec.Replicas - *sts.Spec.UpdateStrategy.RollingUpdate.Partition)),
}, nil
}
}
return &HealthStatus{
Status: HealthStatusHealthy,
Message: fmt.Sprintf("partitioned roll out complete: %d new pods have been updated...", sts.Status.UpdatedReplicas),
}, nil
}
if sts.Spec.UpdateStrategy.Type == appsv1beta2.OnDeleteStatefulSetStrategyType {
return &HealthStatus{
Status: HealthStatusHealthy,
Message: fmt.Sprintf("statefulset has %d ready pods", sts.Status.ReadyReplicas),
}, nil
}
if sts.Status.UpdateRevision != sts.Status.CurrentRevision {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("waiting for statefulset rolling update to complete %d pods at revision %s...", sts.Status.UpdatedReplicas, sts.Status.UpdateRevision),
}, nil
}
return &HealthStatus{
Status: HealthStatusHealthy,
Message: fmt.Sprintf("statefulset rolling update complete %d pods at revision %s...", sts.Status.CurrentReplicas, sts.Status.CurrentRevision),
}, nil
}