forked from nais/naisd
/
resourcedeleter.go
161 lines (132 loc) · 5.14 KB
/
resourcedeleter.go
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package api
import (
"fmt"
redisclient "github.com/spotahome/redis-operator/client/k8s/clientset/versioned/typed/redisfailover/v1alpha2"
"k8s.io/apimachinery/pkg/api/errors"
k8smeta "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
)
func deleteK8sResouces(namespace string, deployName string, k8sClient kubernetes.Interface) (results []string, e error) {
res, err := deleteService(namespace, deployName, k8sClient)
results = append(results, res)
if err != nil {
return results, err
}
res, err = deleteDeployment(namespace, deployName, k8sClient)
results = append(results, res)
if err != nil {
return results, err
}
res, err = deleteRedisFailover(namespace, deployName, k8sClient)
results = append(results, res)
if err != nil {
results = append(results, err.Error())
}
res, err = deleteSecret(namespace, deployName, k8sClient)
results = append(results, res)
if err != nil {
return results, err
}
res, err = deleteIngress(namespace, deployName, k8sClient)
results = append(results, res)
if err != nil {
return results, err
}
res, err = deleteAutoscaler(namespace, deployName, k8sClient)
results = append(results, res)
if err != nil {
return results, err
}
res, err = deleteConfigMapRules(namespace, deployName, k8sClient)
results = append(results, res)
if err != nil {
return results, err
}
if err := NewServiceAccountInterface(k8sClient).Delete(deployName, namespace); err != nil {
return results, err
} else {
results = append(results, "service account: OK")
}
return results, nil
}
func deleteService(namespace string, deployName string, k8sClient kubernetes.Interface) (result string, e error) {
if err := k8sClient.CoreV1().Services(namespace).Delete(deployName, &k8smeta.DeleteOptions{}); err != nil {
return filterNotFound(fmt.Sprintf("service: "), err)
}
return "service: OK", nil
}
func deleteDeployment(namespace string, deployName string, k8sClient kubernetes.Interface) (result string, e error) {
deploymentDeleteOption := k8smeta.DeletePropagationForeground
if err := k8sClient.ExtensionsV1beta1().Deployments(namespace).Delete(deployName, &k8smeta.DeleteOptions{PropagationPolicy: &deploymentDeleteOption}); err != nil {
return filterNotFound("deployment: ", err)
}
return "deployment: OK", nil
}
func deleteSecret(namespace string, deployName string, k8sClient kubernetes.Interface) (result string, e error) {
if err := k8sClient.CoreV1().Secrets(namespace).Delete(deployName, &k8smeta.DeleteOptions{}); err != nil {
return filterNotFound("secret: ", err)
}
return "secret: OK", nil
}
func deleteConfigMapRules(namespace string, deployName string, k8sClient kubernetes.Interface) (result string, e error) {
configMap, err := getExistingConfigMap(AlertsConfigMapName, AlertsConfigMapNamespace, k8sClient)
if err != nil {
return "app alerts: FAIL", fmt.Errorf("unable to get existing configmap: %s", err)
}
configMap = removeRulesFromConfigMap(configMap, deployName, namespace)
configMap, err = createOrUpdateConfigMapResource(configMap, AlertsConfigMapNamespace, k8sClient)
if err != nil {
return filterNotFound("app alerts: ", err)
}
return "alert rules: OK", nil
}
func deleteAutoscaler(namespace string, deployName string, k8sClient kubernetes.Interface) (result string, e error) {
autoscaler, err := getExistingAutoscaler(deployName, namespace, k8sClient)
if autoscaler != nil {
err = k8sClient.AutoscalingV1().HorizontalPodAutoscalers(namespace).Delete(deployName, &k8smeta.DeleteOptions{})
}
if err != nil {
return filterNotFound("autoscaler: ", err)
}
return "autoscaler: OK", nil
}
func deleteIngress(namespace string, deployName string, k8sClient kubernetes.Interface) (result string, e error) {
ingress, err := getExistingIngress(deployName, namespace, k8sClient)
if ingress != nil {
err = k8sClient.ExtensionsV1beta1().Ingresses(namespace).Delete(deployName, &k8smeta.DeleteOptions{})
}
if err != nil {
return filterNotFound("ingress: ", err)
}
return "ingress OK", nil
}
func deleteRedisFailover(namespace string, deployName string, k8sClient kubernetes.Interface) (result string, e error) {
svc, err := getExistingService("rfs-"+deployName, namespace, k8sClient)
if svc == nil {
return "redis: N/A", nil
}
config, err := rest.InClusterConfig()
if err != nil {
return "redis: FAIL", fmt.Errorf("failed while deleting redis failover: can't create InClusterConfig: %s", err)
}
client, err := redisclient.NewForConfig(config)
if err != nil {
return "redis: FAIL", fmt.Errorf("failed while deleting redis failover: can't create new Redis client for InClusterConfig: %s", err)
}
failoverInterface := redisclient.RedisFailoversGetter(client).RedisFailovers(namespace)
failover, err := failoverInterface.Get(deployName, k8smeta.GetOptions{})
if failover != nil {
err = failoverInterface.Delete(deployName, &k8smeta.DeleteOptions{})
}
if err != nil {
return "redis: FAIL", fmt.Errorf("failed while deleting Redis failover: %s", err)
}
return "redis: OK", nil
}
func filterNotFound(resultMessage string, err error) (result string, e error) {
if errors.IsNotFound(err) {
return resultMessage + "N/A", nil
}
return resultMessage + "FAIL", err
}