This repository has been archived by the owner on Mar 16, 2024. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 102
/
logs.go
129 lines (111 loc) · 3.12 KB
/
logs.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
package apps
import (
"context"
"encoding/json"
"net/http"
"github.com/acorn-io/mink/pkg/strategy"
apiv1 "github.com/acorn-io/runtime/pkg/apis/api.acorn.io/v1"
"github.com/acorn-io/runtime/pkg/k8schannel"
kclient "github.com/acorn-io/runtime/pkg/k8sclient"
"github.com/acorn-io/runtime/pkg/labels"
"github.com/acorn-io/runtime/pkg/log"
"github.com/gorilla/websocket"
"github.com/sirupsen/logrus"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/registry/rest"
"k8s.io/client-go/kubernetes"
clientgo "k8s.io/client-go/rest"
"sigs.k8s.io/controller-runtime/pkg/client"
)
func NewLogs(c client.WithWatch, cfg *clientgo.Config) (*Logs, error) {
k8s, err := kubernetes.NewForConfig(cfg)
if err != nil {
return nil, err
}
return &Logs{
k8s: k8s,
client: c,
}, nil
}
type Logs struct {
*strategy.DestroyAdapter
k8s kubernetes.Interface
client client.WithWatch
}
func (i *Logs) NamespaceScoped() bool {
return true
}
func (i *Logs) New() runtime.Object {
return &apiv1.LogOptions{}
}
func (i *Logs) NewConnectOptions() (runtime.Object, bool, string) {
return &apiv1.LogOptions{}, false, ""
}
func (i *Logs) Connect(ctx context.Context, id string, options runtime.Object, r rest.Responder) (http.Handler, error) {
ns, _ := request.NamespaceFrom(ctx)
app := &apiv1.App{}
err := i.client.Get(ctx, kclient.ObjectKey{Namespace: ns, Name: id}, app)
if err != nil {
return nil, err
}
var (
opts = options.(*apiv1.LogOptions)
)
output := make(chan log.Message)
go func() {
defer close(output)
err := log.App(ctx, app, output, &log.Options{
Client: i.client,
PodClient: i.k8s.CoreV1(),
Tail: opts.Tail,
Follow: opts.Follow,
ContainerReplica: opts.ContainerReplica,
Container: opts.Container,
})
if err != nil {
output <- log.Message{
Err: err,
}
}
}()
return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
conn, err := k8schannel.Upgrader.Upgrade(rw, req, nil)
if err != nil {
logrus.Errorf("Error during handshake for app logs: %v", err)
return
}
defer conn.Close()
k8schannel.AddCloseHandler(conn)
for message := range output {
lm := apiv1.LogMessage{
Line: message.Line,
ContainerName: message.ContainerName,
Time: metav1.NewTime(message.Time),
}
if message.Pod != nil {
lm.AppName = message.Pod.Labels[labels.AcornAppName]
lm.ContainerName = message.Pod.Name
if message.ContainerName != message.Pod.Labels[labels.AcornContainerName] {
lm.ContainerName += "." + message.ContainerName
}
}
if message.Err != nil {
lm.Error = message.Err.Error()
}
data, err := json.Marshal(lm)
if err != nil {
panic("failed to marshal update: " + err.Error())
}
if err := conn.WriteMessage(websocket.TextMessage, data); err != nil {
logrus.Errorf("Error writing log message: %v", err)
break
}
}
_ = conn.CloseHandler()(websocket.CloseNormalClosure, "")
}), nil
}
func (i *Logs) ConnectMethods() []string {
return []string{"GET"}
}