/
namespace.go
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/
namespace.go
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// Copyright (c) 2021 Terminus, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package namespace manipulates the k8s api of namespace object
package namespace
import (
"bytes"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
apiv1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/erda-project/erda/modules/scheduler/executor/plugins/k8s/k8sapi"
"github.com/erda-project/erda/modules/scheduler/executor/plugins/k8s/k8serror"
"github.com/erda-project/erda/pkg/http/httpclient"
"github.com/erda-project/erda/pkg/strutil"
)
// Namespace is the object to manipulate k8s api of namespace
type Namespace struct {
addr string
client *httpclient.HTTPClient
}
// Option configures a Namespace
type Option func(*Namespace)
// New news a Namespace
func New(options ...Option) *Namespace {
ns := &Namespace{}
for _, op := range options {
op(ns)
}
return ns
}
// WithCompleteParams provides an Option
func WithCompleteParams(addr string, client *httpclient.HTTPClient) Option {
return func(n *Namespace) {
n.addr = addr
n.client = client
}
}
// Create creates a k8s namespace
// TODO: Need to pass in the namespace structure
func (n *Namespace) Create(ns string, labels map[string]string) error {
namespace := &apiv1.Namespace{
TypeMeta: metav1.TypeMeta{
APIVersion: "v1",
Kind: "Namespace",
},
ObjectMeta: metav1.ObjectMeta{
Name: ns,
Labels: labels,
},
}
var b bytes.Buffer
resp, err := n.client.Post(n.addr).
Path("/api/v1/namespaces").
JSONBody(namespace).
Do().
Body(&b)
if err != nil {
return errors.Wrapf(err, "failed to create namespace, ns: %s, (%v)", ns, err)
}
if !resp.IsOK() {
return errors.Errorf("failed to create namespace, ns: %s, statuscode: %v, body: %v", ns, resp.StatusCode(), b.String())
}
logrus.Infof("succeed to create namespace %s", ns)
return nil
}
func (n *Namespace) Update(ns string, labels map[string]string) error {
namespace := &apiv1.Namespace{
TypeMeta: metav1.TypeMeta{
APIVersion: "v1",
Kind: "Namespace",
},
ObjectMeta: metav1.ObjectMeta{
Name: ns,
Labels: labels,
},
}
var b bytes.Buffer
resp, err := n.client.Put(n.addr).
Path("/api/v1/namespaces/" + ns).
JSONBody(namespace).
Do().
Body(&b)
if err != nil {
return errors.Wrapf(err, "failed to update namespace, ns: %s, (%v)", ns, err)
}
if !resp.IsOK() {
return errors.Errorf("failed to update namespace, ns: %s, statuscode: %v, body: %v", ns, resp.StatusCode(), b.String())
}
logrus.Infof("succeed to update namespace, ns: %s", ns)
return nil
}
// Exists decides whether a namespace exists
func (n *Namespace) Exists(ns string) error {
path := strutil.Concat("/api/v1/namespaces/", ns)
resp, err := n.client.Get(n.addr).
Path(path).
Do().
DiscardBody()
if err != nil {
return err
}
if !resp.IsOK() {
if resp.IsNotfound() {
return k8serror.ErrNotFound
}
return errors.Errorf("failed to get namespace, ns: %s, statuscode: %v", ns, resp.StatusCode())
}
return nil
}
// Delete deletes a k8s namespace (deletes all dependents in the foreground)
func (n *Namespace) Delete(ns string) error {
var b bytes.Buffer
path := strutil.Concat("/api/v1/namespaces/", ns)
resp, err := n.client.Delete(n.addr).
Path(path).
JSONBody(k8sapi.DeleteOptions).
Do().
Body(&b)
if err != nil {
return errors.Errorf("failed to delete namespace, ns: %s, (%v)", ns, err)
}
if !resp.IsOK() {
if resp.IsNotfound() {
logrus.Debugf("namespace not found, ns: %s", ns)
return k8serror.ErrNotFound
}
//When the deletion fails, the namespace is forced to be deleted, and the spec is set to empty
if resp.StatusCode() == 409 {
return n.DeleteForce(ns)
}
return errors.Errorf("failed to delete namespace, ns: %s, statuscode: %v, body: %v",
ns, resp.StatusCode(), b.String())
}
return nil
}
// Delete deletes a k8s namespace with empty
func (n *Namespace) DeleteForce(ns string) error {
namespace := &apiv1.Namespace{
TypeMeta: metav1.TypeMeta{
APIVersion: "v1",
Kind: "Namespace",
},
ObjectMeta: metav1.ObjectMeta{
Name: ns,
},
}
var b bytes.Buffer
_, err := n.client.Put(n.addr).
Path("/api/v1/namespaces/" + ns + "/finalize").
JSONBody(namespace).
Do().
Body(&b)
if err != nil {
logrus.Errorf("failed to update(force delete finalize) namespace, ns: %s, (%v)", ns, err)
return errors.Wrapf(err, "failed to update(force delete finalize) namespace, ns: %s, (%v)", ns, err)
}
return nil
}