restructure rcloud-base as a single base controller (#37)

* restructure rcloud-base as a single base controller
* updated master.rest
* moved sentry from internal to pkg as it is used by relay
* removing unused rpc and it's dependencies
* Fix usermgmt tests
* Don't redefine variables in rest file
Co-authored-by: Abin Simon <abin.simon@rafay.co>

pkg/controller/client/client.go

@@ -0,0 +1,31 @@
+package client
+
+import (
+	"time"
+
+	"github.com/RafaySystems/rcloud-base/pkg/controller/scheme"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/client/apiutil"
+	"sigs.k8s.io/controller-runtime/pkg/client/config"
+)
+
+var (
+	defaultResyncInterval = time.Second * 30
+)
+
+// New returns new kubernetes client
+func New() (client.Client, error) {
+
+	config, err := config.GetConfig()
+	if err != nil {
+		return nil, err
+	}
+
+	mapper, err := apiutil.NewDynamicRESTMapper(config)
+	if err != nil {
+		return nil, err
+	}
+
+	return client.New(config, client.Options{Scheme: scheme.Scheme, Mapper: mapper})
+
+}

pkg/controller/client/client_test.go

@@ -0,0 +1,15 @@
+package client
+
+import (
+	"testing"
+)
+
+func BenchmarkCreateClient(b *testing.B) {
+	// run the Fib function b.N times
+	for n := 0; n < b.N; n++ {
+		_, err := New()
+		if err != nil {
+			b.Error(err)
+		}
+	}
+}