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controller.go
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controller.go
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package controller
import (
kapi "github.com/GoogleCloudPlatform/kubernetes/pkg/api"
kclient "github.com/GoogleCloudPlatform/kubernetes/pkg/client"
"github.com/GoogleCloudPlatform/kubernetes/pkg/fields"
"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
osclient "github.com/openshift/origin/pkg/client"
)
// NamespaceController is responsible for participating in Kubernetes Namespace termination
// Use the NamespaceControllerFactory to create this controller.
type NamespaceController struct {
// Client is an OpenShift client.
Client osclient.Interface
// KubeClient is a Kubernetes client.
KubeClient kclient.Interface
}
// fatalError is an error which can't be retried.
type fatalError string
func (e fatalError) Error() string { return "fatal error handling namespace: " + string(e) }
// Handle processes a namespace and deletes content in origin if its terminating
func (c *NamespaceController) Handle(namespace *kapi.Namespace) error {
// ignore namespaces that are not terminating
if namespace.Status.Phase != kapi.NamespaceTerminating {
return nil
}
deleteAllContent(c.Client, namespace.Name)
// TODO: finalize namespace (remove openshift.com/origin)
return nil
}
// deleteAllContent will purge all content in openshift in the specified namespace
func deleteAllContent(client osclient.Interface, namespace string) (err error) {
err = deleteBuildConfigs(client, namespace)
if err != nil {
return err
}
err = deleteBuilds(client, namespace)
if err != nil {
return err
}
err = deleteDeploymentConfigs(client, namespace)
if err != nil {
return err
}
err = deleteDeployments(client, namespace)
if err != nil {
return err
}
err = deleteImageRepositories(client, namespace)
if err != nil {
return err
}
err = deletePolicies(client, namespace)
if err != nil {
return err
}
err = deletePolicyBindings(client, namespace)
if err != nil {
return err
}
err = deleteRoleBindings(client, namespace)
if err != nil {
return err
}
err = deleteRoles(client, namespace)
if err != nil {
return err
}
err = deleteRoutes(client, namespace)
if err != nil {
return err
}
return nil
}
func deleteRoutes(client osclient.Interface, ns string) error {
items, err := client.Routes(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := client.Routes(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
func deleteRoles(client osclient.Interface, ns string) error {
items, err := client.Roles(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := client.Roles(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
func deleteRoleBindings(client osclient.Interface, ns string) error {
items, err := client.RoleBindings(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := client.RoleBindings(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
func deletePolicyBindings(client osclient.Interface, ns string) error {
items, err := client.PolicyBindings(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := client.PolicyBindings(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
func deletePolicies(client osclient.Interface, ns string) error {
items, err := client.Policies(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := client.Policies(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
func deleteImageRepositories(client osclient.Interface, ns string) error {
items, err := client.ImageRepositories(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := client.ImageRepositories(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
func deleteDeployments(client osclient.Interface, ns string) error {
items, err := client.Deployments(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := client.Deployments(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
func deleteDeploymentConfigs(client osclient.Interface, ns string) error {
items, err := client.DeploymentConfigs(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := client.DeploymentConfigs(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
func deleteBuilds(client osclient.Interface, ns string) error {
items, err := client.Builds(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := client.Builds(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
func deleteBuildConfigs(client osclient.Interface, ns string) error {
items, err := client.BuildConfigs(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := client.BuildConfigs(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}