mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
// Copyright 2015 The etcd 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 etcdhttp
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"net/http"
|
|
|
|
"go.etcd.io/etcd/api/v3/version"
|
|
"go.etcd.io/etcd/server/v3/etcdserver"
|
|
)
|
|
|
|
const (
|
|
versionPath = "/version"
|
|
)
|
|
|
|
func HandleVersion(mux *http.ServeMux, server etcdserver.Server) {
|
|
mux.HandleFunc(versionPath, versionHandler(server, serveVersion))
|
|
}
|
|
|
|
func versionHandler(server etcdserver.Server, fn func(http.ResponseWriter, *http.Request, string, string)) http.HandlerFunc {
|
|
return func(w http.ResponseWriter, r *http.Request) {
|
|
clusterVersion := server.ClusterVersion()
|
|
storageVersion := server.StorageVersion()
|
|
clusterVersionStr, storageVersionStr := "not_decided", "unknown"
|
|
if clusterVersion != nil {
|
|
clusterVersionStr = clusterVersion.String()
|
|
}
|
|
if storageVersion != nil {
|
|
storageVersionStr = storageVersion.String()
|
|
}
|
|
fn(w, r, clusterVersionStr, storageVersionStr)
|
|
}
|
|
}
|
|
|
|
func serveVersion(w http.ResponseWriter, r *http.Request, clusterV, storageV string) {
|
|
if !allowMethod(w, r, "GET") {
|
|
return
|
|
}
|
|
vs := version.Versions{
|
|
Server: version.Version,
|
|
Cluster: clusterV,
|
|
Storage: storageV,
|
|
}
|
|
|
|
w.Header().Set("Content-Type", "application/json")
|
|
b, err := json.Marshal(&vs)
|
|
if err != nil {
|
|
panic(fmt.Sprintf("cannot marshal versions to json (%v)", err))
|
|
}
|
|
w.Write(b)
|
|
}
|