forked from thanos-io/thanos
/
query.go
131 lines (111 loc) · 3.54 KB
/
query.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
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
121
122
123
124
125
126
127
128
129
130
131
package ui
import (
"html/template"
"net/http"
"os"
"path"
"strings"
"time"
"github.com/go-kit/kit/log"
"github.com/improbable-eng/thanos/pkg/component"
"github.com/improbable-eng/thanos/pkg/query"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/model"
"github.com/prometheus/common/route"
"github.com/prometheus/common/version"
)
var localhostRepresentations = []string{"127.0.0.1", "localhost"}
type Query struct {
*BaseUI
storeSet *query.StoreSet
flagsMap map[string]string
cwd string
birth time.Time
now func() model.Time
}
type thanosVersion struct {
Version string `json:"version"`
Revision string `json:"revision"`
Branch string `json:"branch"`
BuildUser string `json:"buildUser"`
BuildDate string `json:"buildDate"`
GoVersion string `json:"goVersion"`
}
func NewQueryUI(logger log.Logger, storeSet *query.StoreSet, flagsMap map[string]string) *Query {
cwd, err := os.Getwd()
if err != nil {
cwd = "<error retrieving current working directory>"
}
return &Query{
BaseUI: NewBaseUI(logger, "query_menu.html", queryTmplFuncs()),
storeSet: storeSet,
flagsMap: flagsMap,
cwd: cwd,
birth: time.Now(),
now: model.Now,
}
}
func queryTmplFuncs() template.FuncMap {
return template.FuncMap{
"since": func(t time.Time) time.Duration {
return time.Since(t) / time.Millisecond * time.Millisecond
},
"formatTimestamp": func(timestamp int64) string {
return time.Unix(timestamp/1000, 0).Format(time.RFC3339)
},
"title": strings.Title,
}
}
// Register registers new GET routes for subpages and retirects from / to /graph.
func (q *Query) Register(r *route.Router) {
instrf := prometheus.InstrumentHandlerFunc
r.Get("/", instrf("root", q.root))
r.Get("/graph", instrf("graph", q.graph))
r.Get("/stores", instrf("stores", q.stores))
r.Get("/status", instrf("status", q.status))
r.Get("/flags", instrf("flags", q.flags))
r.Get("/static/*filepath", instrf("static", q.serveStaticAsset))
// TODO(bplotka): Consider adding more Thanos related data e.g:
// - what store nodes we see currently
// - what sidecars we see currently
}
// root redirects "/" requests to "/graph", taking into account the path prefix value
func (q *Query) root(w http.ResponseWriter, r *http.Request) {
prefix := GetWebPrefix(q.logger, q.flagsMap, r)
http.Redirect(w, r, path.Join(prefix, "/graph"), http.StatusFound)
}
func (q *Query) graph(w http.ResponseWriter, r *http.Request) {
prefix := GetWebPrefix(q.logger, q.flagsMap, r)
q.executeTemplate(w, "graph.html", prefix, nil)
}
func (q *Query) status(w http.ResponseWriter, r *http.Request) {
prefix := GetWebPrefix(q.logger, q.flagsMap, r)
q.executeTemplate(w, "status.html", prefix, struct {
Birth time.Time
CWD string
Version thanosVersion
}{
Birth: q.birth,
CWD: q.cwd,
Version: thanosVersion{
Version: version.Version,
Revision: version.Revision,
Branch: version.Branch,
BuildUser: version.BuildUser,
BuildDate: version.BuildDate,
GoVersion: version.GoVersion,
},
})
}
func (q *Query) stores(w http.ResponseWriter, r *http.Request) {
prefix := GetWebPrefix(q.logger, q.flagsMap, r)
statuses := make(map[component.StoreAPI][]query.StoreStatus)
for _, status := range q.storeSet.GetStoreStatus() {
statuses[status.StoreType] = append(statuses[status.StoreType], status)
}
q.executeTemplate(w, "stores.html", prefix, statuses)
}
func (q *Query) flags(w http.ResponseWriter, r *http.Request) {
prefix := GetWebPrefix(q.logger, q.flagsMap, r)
q.executeTemplate(w, "flags.html", prefix, q.flagsMap)
}