forked from rook/rook
131 lines
3.4 KiB
Go
131 lines
3.4 KiB
Go
/*
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Copyright 2016 The Rook Authors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package api
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import (
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"encoding/json"
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"fmt"
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"net/http"
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ceph "github.com/rook/rook/pkg/cephmgr/client"
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"github.com/rook/rook/pkg/model"
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)
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// Gets the images that have been created in this cluster.
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// GET
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// /image
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func (h *Handler) GetImages(w http.ResponseWriter, r *http.Request) {
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adminConn, ok := h.handleConnectToCeph(w)
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if !ok {
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return
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}
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defer adminConn.Shutdown()
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// first list all the pools so that we can retrieve images from all pools
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pools, err := ceph.ListPoolSummaries(adminConn)
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if err != nil {
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logger.Errorf("failed to list pools: %+v", err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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result := []model.BlockImage{}
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// for each pool, open an IO context to get further details about all the images in the pool
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for _, p := range pools {
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ioctx, ok := handleOpenIOContext(w, adminConn, p.Name)
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if !ok {
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return
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}
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// get all the image names for the current pool
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imageNames, err := ioctx.GetImageNames()
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if err != nil {
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logger.Errorf("failed to get image names from pool %s: %+v", p.Name, err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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// for each image name, open the image and stat it for further details
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images := make([]model.BlockImage, len(imageNames))
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for i, name := range imageNames {
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image := ioctx.GetImage(name)
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image.Open(true)
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defer image.Close()
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imageStat, err := image.Stat()
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if err != nil {
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logger.Errorf("failed to stat image %s from pool %s: %+v", name, p.Name, err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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// add the current image's details to the result set
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images[i] = model.BlockImage{
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Name: name,
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PoolName: p.Name,
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Size: imageStat.Size,
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}
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}
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result = append(result, images...)
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}
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FormatJsonResponse(w, result)
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}
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// Creates a new image in this cluster.
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// POST
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// /image
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func (h *Handler) CreateImage(w http.ResponseWriter, r *http.Request) {
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var newImage model.BlockImage
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body, ok := handleReadBody(w, r, "create image")
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if !ok {
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return
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}
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if err := json.Unmarshal(body, &newImage); err != nil {
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logger.Errorf("failed to unmarshal create image request body '%s': %+v", string(body), err)
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w.WriteHeader(http.StatusBadRequest)
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return
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}
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if newImage.Name == "" || newImage.PoolName == "" || newImage.Size == 0 {
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logger.Errorf("image missing required fields: %+v", newImage)
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w.WriteHeader(http.StatusBadRequest)
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return
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}
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adminConn, ok := h.handleConnectToCeph(w)
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if !ok {
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return
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}
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defer adminConn.Shutdown()
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ioctx, ok := handleOpenIOContext(w, adminConn, newImage.PoolName)
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if !ok {
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return
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}
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createdImage, err := ioctx.CreateImage(newImage.Name, newImage.Size, 22)
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if err != nil {
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logger.Errorf("failed to create image %+v: %+v", newImage, err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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w.Write([]byte(fmt.Sprintf("succeeded created image %s", createdImage.Name())))
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}
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