Skip to content

H
helm3
Commit 3c98c512 authored by Adam Reese's avatar Adam Reese Committed by GitHub
Browse files
Options

Merge pull request #1336 from adamreese/feat/grpc-tracing 

feat(tiller): add optional grpc tracing
parents cd4069dd 995f7569
Hide whitespace changes
Inline Side-by-side
Showing with 75 additions and 8 deletions
cmd/tiller/tiller.go
View file @ 3c98c512
......@@ -46,9 +46,11 @@ var rootServer = grpc.NewServer()
var env = environment.New()
var (
addr = ":44134"
probe = ":44135"
store = storageConfigMap
grpcAddr = ":44134"
probeAddr = ":44135"
traceAddr = ":44136"
enableTracing = false
store = storageConfigMap
)
const globalUsage = `The Kubernetes Helm server.
......@@ -67,8 +69,9 @@ var rootCommand = &cobra.Command{
func main() {
pf := rootCommand.PersistentFlags()
pf.StringVarP(&addr, "listen", "l", ":44134", "The address:port to listen on")
pf.StringVarP(&grpcAddr, "listen", "l", ":44134", "The address:port to listen on")
pf.StringVar(&store, "storage", storageConfigMap, "The storage driver to use. One of 'configmap' or 'memory'")
pf.BoolVar(&enableTracing, "trace", false, "Enable rpc tracing")
rootCommand.Execute()
}
......@@ -84,16 +87,20 @@ func start(c *cobra.Command, args []string) {
env.Releases = storage.Init(driver.NewConfigMaps(c.ConfigMaps(environment.TillerNamespace)))
}
lstn, err := net.Listen("tcp", addr)
lstn, err := net.Listen("tcp", grpcAddr)
if err != nil {
fmt.Fprintf(os.Stderr, "Server died: %s\n", err)
os.Exit(1)
}
fmt.Printf("Tiller is running on %s\n", addr)
fmt.Printf("Tiller probes server is running on %s\n", probe)
fmt.Printf("Tiller is listening on %s\n", grpcAddr)
fmt.Printf("Probes server is listening on %s\n", probeAddr)
fmt.Printf("Storage driver is %s\n", env.Releases.Name())
if enableTracing {
startTracing(traceAddr)
}
srvErrCh := make(chan error)
probeErrCh := make(chan error)
go func() {
......@@ -104,7 +111,7 @@ func start(c *cobra.Command, args []string) {
go func() {
mux := newProbesMux()
if err := http.ListenAndServe(probe, mux); err != nil {
if err := http.ListenAndServe(probeAddr, mux); err != nil {
probeErrCh <- err
}
}()
......
cmd/tiller/trace.go 0 → 100644
View file @ 3c98c512
/*
Copyright 2016 The Kubernetes Authors All rights reserved.
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 main // import "k8s.io/helm/cmd/tiller"
import (
"fmt"
"log"
"net/http"
_ "net/http/pprof"
"google.golang.org/grpc"
)
func startTracing(addr string) {
fmt.Printf("Tracing server is listening on %s\n", addr)
grpc.EnableTracing = true
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
w.Header().Set("Content-Type", "text/html; charset=utf-8")
w.Write([]byte(traceIndexHTML))
})
go func() {
if err := http.ListenAndServe(addr, nil); err != nil {
log.Printf("tracing error: %s", err)
}
}()
}
const traceIndexHTML = `<!DOCTYPE html>
<html>
<body>
<ul>
<li><a href="/debug/requests">requests</a></li>
<li><a href="/debug/events">events</a></li>
<li><a href="/debug/pprof">pprof</a></li>
<li><a href="/debug/vars">vars</a></li>
</ul>
</body>
</html>
`
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment