/
shared_client.go
56 lines (49 loc) · 1.7 KB
/
shared_client.go
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package controller
import (
"time"
kubeinformers "k8s.io/client-go/informers"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
clientset "github.com/mbrt/k8cc/pkg/client/clientset/versioned"
informers "github.com/mbrt/k8cc/pkg/client/informers/externalversions"
)
// SharedClient provides a shared connection for all operators
type SharedClient struct {
KubeClientset kubernetes.Interface
K8ccClientset clientset.Interface
KubeInformerFactory kubeinformers.SharedInformerFactory
DistccInformerFactory informers.SharedInformerFactory
}
// NewSharedClient creates a new connection to the kubernetes master.
//
// If kubecfg and masterURL are empty, defaults to in-cluster configuration. This should be
// shared with as many controllers as possible.
func NewSharedClient(masterURL, kubecfg string) (*SharedClient, error) {
cfg, err := clientcmd.BuildConfigFromFlags(masterURL, kubecfg)
if err != nil {
return nil, err
}
kubeClient, err := kubernetes.NewForConfig(cfg)
if err != nil {
return nil, err
}
client, err := clientset.NewForConfig(cfg)
if err != nil {
return nil, err
}
kubeInformerFactory := kubeinformers.NewSharedInformerFactory(kubeClient, time.Second*30)
distccInformerFactory := informers.NewSharedInformerFactory(client, time.Second*30)
return &SharedClient{
KubeClientset: kubeClient,
K8ccClientset: client,
KubeInformerFactory: kubeInformerFactory,
DistccInformerFactory: distccInformerFactory,
}, nil
}
// Run starts the client connection, and sync the caches.
func (c *SharedClient) Run(stopCh <-chan struct{}) error {
go c.KubeInformerFactory.Start(stopCh)
go c.DistccInformerFactory.Start(stopCh)
<-stopCh
return nil
}