/
server.go
89 lines (69 loc) · 1.9 KB
/
server.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
package server
import (
"fmt"
"net/http"
"time"
chartserverclientv1beta1 "github.com/chartserver/chartserver/pkg/client/chartserverclientset/typed/chartserver/v1beta1"
"github.com/ghodss/yaml"
"github.com/gin-gonic/gin"
"github.com/pkg/errors"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"k8s.io/helm/pkg/repo"
)
type ChartServer struct {
chartserverClient *chartserverclientv1beta1.ChartserverV1beta1Client
client *kubernetes.Clientset
chartCache map[string]repo.ChartVersions
cacheGeneratedAt time.Time
}
func StartWebServer(config *rest.Config, bindAddr string) error {
g := gin.New()
chartserverClient, err := chartserverclientv1beta1.NewForConfig(config)
if err != nil {
return errors.Wrap(err, "failed to create chartserver clientset")
}
client, err := kubernetes.NewForConfig(config)
if err != nil {
return errors.Wrap(err, "failed to create kubernetes clientset")
}
h := ChartServer{
chartserverClient: chartserverClient,
client: client,
}
if err := h.refreshCache(); err != nil {
return errors.Wrap(err, "failed to init cache")
}
go func() {
for {
if err := h.refreshCache(); err != nil {
fmt.Println("failed to refresh cache")
}
time.Sleep(time.Second * 10)
}
}()
root := g.Group("/")
root.GET("/healthz", h.Healthz)
root.GET("/index.yaml", h.Index)
server := http.Server{Addr: bindAddr, Handler: g}
errChan := make(chan error)
go func() {
errChan <- server.ListenAndServe()
}()
return nil
}
func (h ChartServer) Healthz(c *gin.Context) {
c.JSON(200, map[string]interface{}{})
}
func (h *ChartServer) Index(c *gin.Context) {
indexFile := repo.NewIndexFile()
indexFile.Entries = h.chartCache
indexFile.Generated = h.cacheGeneratedAt
b, err := yaml.Marshal(indexFile)
if err != nil {
c.AbortWithStatus(500)
return
}
c.Header("Content-Type", "application/x-yaml; charset=utf-8")
c.String(200, string(b))
}