Add config

config/context.go

@@ -0,0 +1,132 @@
+package config
+
+import (
+	"context"
+
+	"github.com/rancher/norman/controller"
+	"github.com/rancher/norman/signal"
+	appsv1beta2 "github.com/rancher/types/apis/apps/v1beta2"
+	authzv1 "github.com/rancher/types/apis/authorization.cattle.io/v1"
+	clusterv1 "github.com/rancher/types/apis/cluster.cattle.io/v1"
+	corev1 "github.com/rancher/types/apis/core/v1"
+	workloadv1 "github.com/rancher/types/apis/workload.cattle.io/v1"
+	"github.com/sirupsen/logrus"
+	"k8s.io/client-go/dynamic"
+	"k8s.io/client-go/rest"
+)
+
+type ClusterContext struct {
+	RESTConfig        rest.Config
+	UnversionedClient rest.Interface
+	Cluster           clusterv1.Interface
+	Authorization     authzv1.Interface
+}
+
+type WorkloadContext struct {
+	Cluster           *ClusterContext
+	RESTConfig        rest.Config
+	UnversionedClient rest.Interface
+	Apps              appsv1beta2.Interface
+	Workload          workloadv1.Interface
+	Core              corev1.Interface
+}
+
+func NewClusterContext(config rest.Config) (*ClusterContext, error) {
+	var err error
+
+	context := &ClusterContext{
+		RESTConfig: config,
+	}
+
+	context.Cluster, err = clusterv1.NewForConfig(config)
+	if err != nil {
+		return nil, err
+	}
+
+	context.Authorization, err = authzv1.NewForConfig(config)
+	if err != nil {
+		return nil, err
+	}
+
+	dynamicConfig := config
+	if dynamicConfig.NegotiatedSerializer == nil {
+		configConfig := dynamic.ContentConfig()
+		dynamicConfig.NegotiatedSerializer = configConfig.NegotiatedSerializer
+	}
+
+	context.UnversionedClient, err = rest.UnversionedRESTClientFor(&dynamicConfig)
+	if err != nil {
+		return nil, err
+	}
+
+	return context, err
+}
+
+func (c *ClusterContext) Start(ctx context.Context) error {
+	logrus.Info("Syncing cluster controllers")
+	err := controller.Sync(ctx,
+		c.Cluster,
+		c.Authorization)
+	if err != nil {
+		return err
+	}
+
+	logrus.Info("Starting cluster controllers")
+	if err := c.Cluster.Start(ctx, 5); err != nil {
+		return err
+	}
+
+	if err := c.Authorization.Start(ctx, 5); err != nil {
+		return err
+	}
+
+	logrus.Info("Cluster context started")
+	return nil
+}
+
+func (c *ClusterContext) StartAndWait() error {
+	ctx := signal.SigTermCancelContext(context.Background())
+	c.Start(ctx)
+	<-ctx.Done()
+	return ctx.Err()
+}
+
+func NewWorkloadContext(clusterConfig, config rest.Config) (*WorkloadContext, error) {
+	var err error
+	context := &WorkloadContext{
+		RESTConfig: config,
+	}
+
+	context.Cluster, err = NewClusterContext(clusterConfig)
+	if err != nil {
+		return nil, err
+	}
+
+	context.Apps, err = appsv1beta2.NewForConfig(config)
+	if err != nil {
+		return nil, err
+	}
+
+	context.Workload, err = workloadv1.NewForConfig(config)
+	if err != nil {
+		return nil, err
+	}
+
+	context.Core, err = corev1.NewForConfig(config)
+	if err != nil {
+		return nil, err
+	}
+
+	dynamicConfig := config
+	if dynamicConfig.NegotiatedSerializer == nil {
+		configConfig := dynamic.ContentConfig()
+		dynamicConfig.NegotiatedSerializer = configConfig.NegotiatedSerializer
+	}
+
+	context.UnversionedClient, err = rest.UnversionedRESTClientFor(&dynamicConfig)
+	if err != nil {
+		return nil, err
+	}
+
+	return context, err
+}