certmanager updates

pkg/client/client.go

@@ -0,0 +1,51 @@
+package client
+
+import (
+	"context"
+	"crypto/tls"
+	"fmt"
+	"time"
+
+	"certmanager/pkg/cmctl"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
+)
+
+const (
+	DefaultWrpcPort int = 20311
+	DefaultGrpcPort int = 20312
+)
+
+type Access struct {
+	Hostname string
+	Port     int
+	Username string
+	Password string
+}
+
+func NewClient(access *Access) (cmctl.ControlClient, error) {
+	var err error
+	var cli cmctl.ControlClient
+
+	tlsConfig := &tls.Config{
+		InsecureSkipVerify: true,
+	}
+	const dialTimeout time.Duration = 1 * time.Second
+	const idleTimeout time.Duration = 5 * time.Second
+
+	authCred := NewAuthCredential(access.Username, access.Password)
+	dialOpts := []grpc.DialOption{
+		grpc.WithTransportCredentials(credentials.NewTLS(tlsConfig)),
+		grpc.WithPerRPCCredentials(authCred),
+		grpc.WithBlock(),
+		grpc.WithIdleTimeout(idleTimeout),
+	}
+	address := fmt.Sprintf("%s:%d", access.Hostname, access.Port)
+	ctx, _ := context.WithTimeout(context.Background(), dialTimeout)
+	conn, err := grpc.DialContext(ctx, address, dialOpts...)
+	if err != nil {
+		return cli, fmt.Errorf("Dial error: %v", err)
+	}
+	cli = cmctl.NewControlClient(conn)
+	return cli, err
+}