/
pvc.go
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/
pvc.go
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// Copyright 2022 The kubegems.io Authors
//
// 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 apis
import (
"strconv"
"github.com/gin-gonic/gin"
v1snap "github.com/kubernetes-csi/external-snapshotter/client/v4/apis/volumesnapshot/v1"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/types"
"kubegems.io/kubegems/pkg/apis/storage"
"kubegems.io/library/rest/response"
"sigs.k8s.io/controller-runtime/pkg/client"
)
type PvcHandler struct {
C client.Client
}
// @Tags Agent.V1
// @Summary 获取PersistentVolumeClaim列表数据
// @Description 获取PersistentVolumeClaim列表数据
// @Accept json
// @Produce json
// @Param order query string false "page"
// @Param search query string false "search"
// @Param page query int false "page"
// @Param size query int false "page"
// @Param namespace path string true "namespace"
// @Param cluster path string true "cluster"
// @Success 200 {object} handlers.ResponseStruct{Data=response.Page[v1.PersistentVolumeClaim]{List=[]object}} "PersistentVolumeClaim"
// @Router /v1/proxy/cluster/{cluster}/custom/core/v1/namespaces/{namespace}/pvcs [get]
// @Security JWT
func (h *PvcHandler) List(c *gin.Context) {
ns := c.Param("namespace")
if ns == "_all" || ns == "_" {
ns = ""
}
pvcList := &v1.PersistentVolumeClaimList{}
listOpts := []client.ListOption{
client.InNamespace(ns),
client.MatchingLabelsSelector{Selector: getLabelSelector(c)},
}
if err := h.C.List(c.Request.Context(), pvcList, listOpts...); err != nil {
NotOK(c, err)
return
}
// ignore errors
pvcInUse, snapClassInUse, _ := h.getMapForSnapAndPod(c, ns)
objects := pvcList.Items
for _, obj := range objects {
h.annotatePVC(c, &obj, pvcInUse, snapClassInUse)
}
pageData := response.PageObjectFromRequest(c.Request, objects)
OK(c, pageData)
}
// @Tags Agent.V1
// @Summary 获取PersistentVolumeClaim数据
// @Description 获取PersistentVolumeClaim数据
// @Accept json
// @Produce json
// @Param cluster path string true "cluster"
// @Param name path string true "name"
// @Param namespace path string true "namespace"
// @Success 200 {object} handlers.ResponseStruct{Data=object} "counter"
// @Router /v1/proxy/cluster/{cluster}/custom/core/v1/namespaces/{namespace}/pvcs/{name} [get]
// @Security JWT
func (h *PvcHandler) Get(c *gin.Context) {
ns := c.Param("namespace")
pvcName := c.Param("name")
pvc := &v1.PersistentVolumeClaim{}
if ns == "_all" || ns == "_" {
ns = ""
}
err := h.C.Get(c.Request.Context(), types.NamespacedName{Namespace: ns, Name: pvcName}, pvc)
if err != nil {
NotOK(c, err)
return
}
pvcInUse, snapClassInUse, err := h.getMapForSnapAndPod(c, ns)
if err != nil {
NotOK(c, err)
return
}
h.annotatePVC(c, pvc, pvcInUse, snapClassInUse)
OK(c, pvc)
}
func (h *PvcHandler) annotatePVC(c *gin.Context, pvc *v1.PersistentVolumeClaim,
pvcInUse map[string]int, snapClassInUse map[string]int,
) {
inUse, allowSnapshot := false, false
if pvc.Annotations == nil {
pvc.Annotations = make(map[string]string)
}
if _, ok := pvcInUse[pvc.Name]; ok {
inUse = true
}
if provisioner := pvc.GetAnnotations()[storage.AnnotationStorageProvisioner]; len(provisioner) > 0 {
if _, ok := snapClassInUse[provisioner]; ok {
allowSnapshot = true
}
}
pvc.Annotations[storage.AnnotationInUse] = strconv.FormatBool(inUse)
pvc.Annotations[storage.AnnotationAllowSnapshot] = strconv.FormatBool(allowSnapshot)
}
func (h *PvcHandler) getMapForSnapAndPod(c *gin.Context, ns string) (map[string]int, map[string]int, error) {
pvcInUse := make(map[string]int)
snapClassInUse := make(map[string]int)
podList := &v1.PodList{}
err := h.C.List(c.Request.Context(), podList, client.InNamespace(ns))
if err != nil {
return nil, nil, err
}
for _, pod := range podList.Items {
for _, pvc := range pod.Spec.Volumes {
if pvc.PersistentVolumeClaim != nil {
pvcInUse[pvc.PersistentVolumeClaim.ClaimName] = 1
}
}
}
snapClass := &v1snap.VolumeSnapshotClassList{}
err = h.C.List(c.Request.Context(), snapClass, client.InNamespace(""))
if err != nil {
return nil, nil, err
}
for _, snap := range snapClass.Items {
snapClassInUse[snap.Driver] = 1
}
return pvcInUse, snapClassInUse, nil
}