add go micro_service

add k8s

providers/k8s/kubernetes.go

@@ -0,0 +1,39 @@
+package k8s
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/pkg/errors"
+	"github.com/rogeecn/atom/container"
+	"github.com/rogeecn/atom/providers/log"
+	"github.com/rogeecn/atom/utils/opt"
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/tools/clientcmd"
+)
+
+func DefaultProvider() container.ProviderContainer {
+	return container.ProviderContainer{
+		Provider: Provide,
+		Options:  []opt.Option{},
+	}
+}
+
+func Provide(opts ...opt.Option) error {
+	o := opt.New(opts...)
+	return container.Container.Provide(func() (*kubernetes.Clientset, error) {
+		config := filepath.Join(os.Getenv("HOME"), ".kube", "config")
+		if _, err := os.Stat(config); err != nil {
+			config = ""
+		} else {
+			log.Debugf("using kube config: %s", config)
+		}
+
+		clientConfig, err := clientcmd.BuildConfigFromFlags("", config)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to build config")
+		}
+
+		return kubernetes.NewForConfig(clientConfig)
+	}, o.DiOptions()...)
+}