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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
package main
import (
"fmt"
"net/http"
"strings"
"time"
"go.wit.com/lib/gui/shell"
"go.wit.com/log"
)
// remove '?' part and trailing '/'
func cleanURL(url string) string {
url = "/" + strings.Trim(url, "/")
return url
}
func okHandler(w http.ResponseWriter, r *http.Request) {
var tmp string
tmp = cleanURL(r.URL.Path)
log.Info("Handling URL:", tmp)
if tmp == "/" {
fmt.Fprintln(w, "OK")
return
}
if tmp == "/me" {
fmt.Fprintln(w, "OK")
return
}
// list all the droplets
if tmp == "/droplets" {
for _, d := range me.droplets {
dur := time.Since(d.lastpoll) // Calculate the elapsed time
fmt.Fprintln(w, d.Hostname, d.hname, shell.FormatDuration(dur))
}
return
}
// is the cluster running what it should?
if tmp == "/good" {
var good = true
for _, d := range me.droplets {
if d.State != "ON" {
continue
}
dur := time.Since(d.lastpoll) // Calculate the elapsed time
if d.CurrentState != "ON" {
fmt.Fprintln(w, "BAD STATE ", d.Hostname, "State =", d.State, "CurrentState =", d.CurrentState, shell.FormatDuration(dur))
good = false
} else {
dur := time.Since(d.lastpoll) // Calculate the elapsed time
fmt.Fprintln(w, "GOOD STATE ON", d.Hostname, d.hname, shell.FormatDuration(dur))
}
}
if good {
fmt.Fprintln(w, "GOOD=true")
} else {
fmt.Fprintln(w, "GOOD=false")
}
return
}
if tmp == "/favicon.ico" {
writeFile(w, "ipv6.png")
return
}
if tmp == "/uptime" {
if clusterHealthy() {
fmt.Fprintln(w, "GOOD=true")
} else {
fmt.Fprintln(w, "GOOD=false")
}
return
}
// used for uptime monitor checking (like Kuma)
if tmp == "/uptime" {
writeFile(w, "uptime.html")
return
}
log.Warn("BAD URL =", tmp)
fmt.Fprintln(w, "BAD ZOOT")
// badurl(w, r.URL.String())
// fmt.Fprintln(w, "BAD", tmp)
}
func writeFile(w http.ResponseWriter, filename string) {
// fmt.Fprintln(w, "GOT TEST?")
fullname := "resources/" + filename
pfile, err := resources.ReadFile(fullname)
if err != nil {
log.Println("ERROR:", err)
// w.Write(pfile)
return
}
var repohtml string
repohtml = string(pfile)
if filename == "goReference.svg" {
w.Header().Set("Content-Type", "image/svg+xml")
}
fmt.Fprintln(w, repohtml)
log.Println("writeFile() found internal file:", filename)
}
// starts and sits waiting for HTTP requests
func startHTTP() {
http.HandleFunc("/", okHandler)
p := fmt.Sprintf(":%d", argv.Port)
log.Println("Running on port", p)
err := http.ListenAndServe(p, nil)
if err != nil {
log.Println("Error starting server:", err)
}
}
|
