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health_replicaset.go
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health_replicaset.go
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package health
import (
"fmt"
"github.com/argoproj/gitops-engine/pkg/utils/kube"
appsv1 "k8s.io/api/apps/v1"
appsv1beta2 "k8s.io/api/apps/v1beta2"
corev1 "k8s.io/api/core/v1"
extv1beta1 "k8s.io/api/extensions/v1beta1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
)
func getReplicaSetHealth(obj *unstructured.Unstructured) (*HealthStatus, error) {
gvk := obj.GroupVersionKind()
switch gvk {
case appsv1.SchemeGroupVersion.WithKind(kube.ReplicaSetKind):
var replicaSet appsv1.ReplicaSet
err := runtime.DefaultUnstructuredConverter.FromUnstructured(obj.Object, &replicaSet)
if err != nil {
return nil, fmt.Errorf("failed to convert unstructured ReplicaSet to typed: %v", err)
}
return getAppsv1ReplicaSetHealth(&replicaSet)
case appsv1beta2.SchemeGroupVersion.WithKind(kube.ReplicaSetKind):
var replicaSet appsv1beta2.ReplicaSet
err := runtime.DefaultUnstructuredConverter.FromUnstructured(obj.Object, &replicaSet)
if err != nil {
return nil, fmt.Errorf("failed to convert unstructured ReplicaSet to typed: %v", err)
}
return getAppsv1beta1ReplicaSetHealth(&replicaSet)
case extv1beta1.SchemeGroupVersion.WithKind(kube.ReplicaSetKind):
var replicaSet extv1beta1.ReplicaSet
err := runtime.DefaultUnstructuredConverter.FromUnstructured(obj.Object, &replicaSet)
if err != nil {
return nil, fmt.Errorf("failed to convert unstructured ReplicaSet to typed: %v", err)
}
return getExtv1beta1ReplicaSetHealth(&replicaSet)
default:
return nil, fmt.Errorf("unsupported ReplicaSet GVK: %s", gvk)
}
}
func getAppsv1ReplicaSetHealth(replicaSet *appsv1.ReplicaSet) (*HealthStatus, error) {
if replicaSet.Generation <= replicaSet.Status.ObservedGeneration {
cond := getAppsv1ReplicaSetCondition(replicaSet.Status, appsv1.ReplicaSetReplicaFailure)
if cond != nil && cond.Status == corev1.ConditionTrue {
return &HealthStatus{
Status: HealthStatusDegraded,
Message: cond.Message,
}, nil
} else if replicaSet.Spec.Replicas != nil && replicaSet.Status.AvailableReplicas < *replicaSet.Spec.Replicas {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("Waiting for rollout to finish: %d out of %d new replicas are available...", replicaSet.Status.AvailableReplicas, *replicaSet.Spec.Replicas),
}, nil
}
} else {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: "Waiting for rollout to finish: observed replica set generation less then desired generation",
}, nil
}
return &HealthStatus{
Status: HealthStatusHealthy,
}, nil
}
func getAppsv1beta1ReplicaSetHealth(replicaSet *appsv1beta2.ReplicaSet) (*HealthStatus, error) {
if replicaSet.Generation <= replicaSet.Status.ObservedGeneration {
cond := getAppsv1beta2ReplicaSetCondition(replicaSet.Status, appsv1beta2.ReplicaSetReplicaFailure)
if cond != nil && cond.Status == corev1.ConditionTrue {
return &HealthStatus{
Status: HealthStatusDegraded,
Message: cond.Message,
}, nil
} else if replicaSet.Spec.Replicas != nil && replicaSet.Status.AvailableReplicas < *replicaSet.Spec.Replicas {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("Waiting for rollout to finish: %d out of %d new replicas are available...", replicaSet.Status.AvailableReplicas, *replicaSet.Spec.Replicas),
}, nil
}
} else {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: "Waiting for rollout to finish: observed replica set generation less then desired generation",
}, nil
}
return &HealthStatus{
Status: HealthStatusHealthy,
}, nil
}
func getExtv1beta1ReplicaSetHealth(replicaSet *extv1beta1.ReplicaSet) (*HealthStatus, error) {
if replicaSet.Generation <= replicaSet.Status.ObservedGeneration {
cond := getExtv1beta1ReplicaSetCondition(replicaSet.Status, extv1beta1.ReplicaSetReplicaFailure)
if cond != nil && cond.Status == corev1.ConditionTrue {
return &HealthStatus{
Status: HealthStatusDegraded,
Message: cond.Message,
}, nil
} else if replicaSet.Spec.Replicas != nil && replicaSet.Status.AvailableReplicas < *replicaSet.Spec.Replicas {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: fmt.Sprintf("Waiting for rollout to finish: %d out of %d new replicas are available...", replicaSet.Status.AvailableReplicas, *replicaSet.Spec.Replicas),
}, nil
}
} else {
return &HealthStatus{
Status: HealthStatusProgressing,
Message: "Waiting for rollout to finish: observed replica set generation less then desired generation",
}, nil
}
return &HealthStatus{
Status: HealthStatusHealthy,
}, nil
}
func getAppsv1ReplicaSetCondition(status appsv1.ReplicaSetStatus, condType appsv1.ReplicaSetConditionType) *appsv1.ReplicaSetCondition {
for i := range status.Conditions {
c := status.Conditions[i]
if c.Type == condType {
return &c
}
}
return nil
}
func getAppsv1beta2ReplicaSetCondition(status appsv1beta2.ReplicaSetStatus, condType appsv1beta2.ReplicaSetConditionType) *appsv1beta2.ReplicaSetCondition {
for i := range status.Conditions {
c := status.Conditions[i]
if c.Type == condType {
return &c
}
}
return nil
}
func getExtv1beta1ReplicaSetCondition(status extv1beta1.ReplicaSetStatus, condType extv1beta1.ReplicaSetConditionType) *extv1beta1.ReplicaSetCondition {
for i := range status.Conditions {
c := status.Conditions[i]
if c.Type == condType {
return &c
}
}
return nil
}