forked from istio/istio
-
Notifications
You must be signed in to change notification settings - Fork 1
/
proc.go
87 lines (73 loc) · 2.3 KB
/
proc.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
// Copyright 2018 Istio 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 topics
import (
"html/template"
"net/http"
"os"
"runtime"
"istio.io/istio/pkg/ctrlz/fw"
)
type procTopic struct {
}
// ProcTopic returns a ControlZ topic that allows visualization of process state.
func ProcTopic() fw.Topic {
return procTopic{}
}
func (procTopic) Title() string {
return "Process Info"
}
func (procTopic) Prefix() string {
return "proc"
}
type procInfo struct {
Egid int `json:"egid"`
Euid int `json:"euid"`
Gid int `json:"gid"`
Groups []int `json:"groups"`
Pid int `json:"pid"`
Ppid int `json:"ppid"`
UID int `json:"uid"`
Wd string `json:"wd"`
Hostname string `json:"hostname"`
TempDir string `json:"tempdir"`
Threads int `json:"threads"`
Goroutines int `json:"goroutines"`
}
func getProcInfo() *procInfo {
pi := procInfo{
Egid: os.Getegid(),
Euid: os.Geteuid(),
Gid: os.Getgid(),
Pid: os.Getpid(),
Ppid: os.Getppid(),
UID: os.Getuid(),
TempDir: os.TempDir(),
Goroutines: runtime.NumGoroutine(),
}
pi.Groups, _ = os.Getgroups()
pi.Wd, _ = os.Hostname()
pi.Hostname, _ = os.Hostname()
pi.Threads, _ = runtime.ThreadCreateProfile(nil)
return &pi
}
func (procTopic) Activate(context fw.TopicContext) {
tmpl := template.Must(context.Layout().Parse(string(MustAsset("assets/templates/proc.html"))))
_ = context.HTMLRouter().StrictSlash(true).NewRoute().Path("/").HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
fw.RenderHTML(w, tmpl, getProcInfo())
})
_ = context.JSONRouter().StrictSlash(true).NewRoute().Methods("GET").Path("/").HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
fw.RenderJSON(w, http.StatusOK, getProcInfo())
})
}