forked from tektoncd/triggers
/
main.go
129 lines (109 loc) · 3.92 KB
/
main.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
/*
Copyright 2019 The Tekton 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 main
import (
"context"
"flag"
"log"
"github.com/tektoncd/pipeline/pkg/system"
"github.com/tektoncd/triggers/pkg/apis/triggers/v1alpha1"
"go.uber.org/zap"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/client-go/dynamic"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"knative.dev/pkg/configmap"
"knative.dev/pkg/logging"
"knative.dev/pkg/logging/logkey"
"knative.dev/pkg/signals"
"knative.dev/pkg/webhook"
)
// WebhookLogKey is the name of the logger for the webhook cmd
const (
WebhookLogKey = "webhook"
// ConfigName is the name of the ConfigMap that the logging config will be stored in
ConfigName = "config-logging-triggers"
)
var (
client dynamic.Interface
)
func main() {
flag.Parse()
cm, err := configmap.Load("/etc/config-logging")
if err != nil {
log.Fatalf("Error loading logging configuration: %v", err)
}
config, err := logging.NewConfigFromMap(cm)
if err != nil {
log.Fatalf("Error parsing logging configuration: %v", err)
}
logger, atomicLevel := logging.NewLoggerFromConfig(config, WebhookLogKey)
defer func() {
err := logger.Sync()
if err != nil {
logger.Fatal("Failed to sync the logger", zap.Error(err))
}
}()
logger = logger.With(zap.String(logkey.ControllerType, "webhook"))
logger.Info("Starting the Configuration Webhook")
// set up signals so we handle the first shutdown signal gracefully
stopCh := signals.SetupSignalHandler()
clusterConfig, err := rest.InClusterConfig()
if err != nil {
logger.Fatal("Failed to get in cluster config", zap.Error(err))
}
kubeClient, err := kubernetes.NewForConfig(clusterConfig)
if err != nil {
logger.Fatal("Failed to get the client set", zap.Error(err))
}
client, err = dynamic.NewForConfig(clusterConfig)
if err != nil {
logger.Fatal("Failed to get the dynamic client set", zap.Error(err))
}
// Watch the logging config map and dynamically update logging levels.
configMapWatcher := configmap.NewInformedWatcher(kubeClient, system.GetNamespace())
configMapWatcher.Watch(ConfigName, logging.UpdateLevelFromConfigMap(logger, atomicLevel, WebhookLogKey))
if err = configMapWatcher.Start(stopCh); err != nil {
logger.Fatalf("failed to start configuration manager: %v", err)
}
options := webhook.ControllerOptions{
ServiceName: "tekton-triggers-webhook",
DeploymentName: "tekton-triggers-webhook",
Namespace: system.GetNamespace(),
Port: 8443,
SecretName: "triggers-webhook-certs",
WebhookName: "triggers-webhook.tekton.dev",
}
//TODO add validations here
controller := webhook.AdmissionController{
Client: kubeClient,
Options: options,
Handlers: map[schema.GroupVersionKind]webhook.GenericCRD{
v1alpha1.SchemeGroupVersion.WithKind("EventListener"): &v1alpha1.EventListener{},
v1alpha1.SchemeGroupVersion.WithKind("TriggerBinding"): &v1alpha1.TriggerBinding{},
v1alpha1.SchemeGroupVersion.WithKind("TriggerTemplate"): &v1alpha1.TriggerTemplate{},
},
Logger: logger,
DisallowUnknownFields: true,
// Decorate contexts with the current state of the config.
WithContext: func(ctx context.Context) context.Context {
return injectDynamicClientset(ctx)
},
}
if err := controller.Run(stopCh); err != nil {
logger.Fatal("Error running admission controller", zap.Error(err))
}
}
func injectDynamicClientset(ctx context.Context) context.Context {
return context.WithValue(ctx, "clientSet", client)
}