forked from rook/rook
Travis Nielsen
0298d1fb29
move core rados packages under cluster folder move daemons under daemon pkg rename flex crd package to attachment pin dep to k8s 1.8.2
98 lines
2.5 KiB
Go
98 lines
2.5 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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"io"
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"io/ioutil"
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"net/http"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/rook/rook/pkg/clusterd"
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ceph "github.com/rook/rook/pkg/daemon/ceph/client"
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"github.com/rook/rook/pkg/daemon/ceph/mon"
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)
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type Handler struct {
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context *clusterd.Context
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config *Config
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cephExporter *CephExporter
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}
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func newHandler(context *clusterd.Context, config *Config) *Handler {
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return &Handler{
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context: context,
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config: config,
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}
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}
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// RegisterMetrics registers all collected metrics by this API server. Note this should be called in a
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// goroutine because it will retry upon failure and block until successful.
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func (h *Handler) RegisterMetrics(retryMs int) error {
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h.cephExporter = NewCephExporter(h)
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if err := prometheus.Register(h.cephExporter); err != nil {
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return fmt.Errorf("failed to register metrics: %+v", err)
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}
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return nil
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}
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func (h *Handler) Shutdown() {
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if h.cephExporter != nil {
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prometheus.Unregister(h.cephExporter)
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}
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}
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// Format a json response
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func FormatJsonResponse(w http.ResponseWriter, object interface{}) {
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w.Header().Set("Content-Type", "application/json; charset=UTF-8")
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output, err := json.Marshal(object)
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if err != nil {
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logger.Errorf("failed to marshal object '%+v': %+v", object, err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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w.Write(output)
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}
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type overallMonStatus struct {
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Status ceph.MonStatusResponse `json:"status"`
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Desired []*mon.CephMonitorConfig `json:"desired"`
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}
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func handleReadBody(w http.ResponseWriter, r *http.Request, opName string) ([]byte, bool) {
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if r.Body == nil {
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logger.Errorf("nil request body for %s", opName)
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w.WriteHeader(http.StatusBadRequest)
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return nil, false
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}
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body, err := ioutil.ReadAll(io.LimitReader(r.Body, 1024))
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if err == nil {
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r.Body.Close()
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} else {
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logger.Errorf("failed to read %s request body: %+v", opName, err)
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w.WriteHeader(http.StatusBadRequest)
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return nil, false
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}
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return body, true
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}
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