diff --git a/cmd/cri-containerd/cri_containerd.go b/cmd/cri-containerd/cri_containerd.go
deleted file mode 100644
index 9b40cda19..000000000
--- a/cmd/cri-containerd/cri_containerd.go
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
-Copyright 2017 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package main
-
-import (
-	"flag"
-	"fmt"
-	"net"
-	"net/http"
-	"net/http/pprof"
-	"os"
-	"os/signal"
-	"runtime"
-	"syscall"
-
-	"github.com/containerd/cgroups"
-	"github.com/containerd/containerd/log"
-	"github.com/containerd/containerd/sys"
-	runtimespec "github.com/opencontainers/runtime-spec/specs-go"
-	"github.com/sirupsen/logrus"
-	"github.com/spf13/cobra"
-	"k8s.io/kubernetes/pkg/util/interrupt"
-
-	"github.com/containerd/cri-containerd/cmd/cri-containerd/options"
-	"github.com/containerd/cri-containerd/pkg/server"
-	"github.com/containerd/cri-containerd/pkg/version"
-)
-
-// Add \u200B to avoid the space trimming.
-const desc = "\u200B" + `             _                         __        _                      __
-  __________(_)      _________  ____  / /_____ _(_)____  ___  _________/ /
- / ___/ ___/ /______/ ___/ __ \/ __ \/ __/ __ ` + "`" + `/ // __ \/ _ \/ ___/ __  /
-/ /__/ /  / //_____/ /__/ /_/ / / / / /_/ /_/ / // / / /  __/ /  / /_/ /
-\___/_/  /_/       \___/\____/_/ /_/\__/\__,_/_//_/ /_/\___/_/   \__,_/
-
-A containerd based Kubernetes CRI implementation.
-`
-
-var cmd = &cobra.Command{
-	Use:   "cri-containerd",
-	Short: "A containerd based Kubernetes CRI implementation.",
-	Long:  desc,
-}
-
-func defaultConfigCommand() *cobra.Command {
-	return &cobra.Command{
-		Use:   "default-config",
-		Short: "Print default toml config of cri-containerd.",
-		Run: func(cmd *cobra.Command, args []string) {
-			options.PrintDefaultTomlConfig()
-		},
-	}
-}
-
-func versionCommand() *cobra.Command {
-	return &cobra.Command{
-		Use:   "version",
-		Short: "Print cri-containerd version information.",
-		Run: func(cmd *cobra.Command, args []string) {
-			version.PrintVersion()
-		},
-	}
-}
-
-func main() {
-	o := options.NewCRIContainerdOptions()
-
-	o.AddFlags(cmd.Flags())
-	cmd.AddCommand(defaultConfigCommand())
-	cmd.AddCommand(versionCommand())
-
-	cmd.RunE = func(cmd *cobra.Command, args []string) error {
-		setupDumpStacksTrap()
-		if err := o.InitFlags(cmd.Flags()); err != nil {
-			return fmt.Errorf("failed to init CRI containerd flags: %v", err)
-		}
-
-		if err := setLogLevel(o.LogLevel); err != nil {
-			return fmt.Errorf("failed to set log level: %v", err)
-		}
-
-		logrus.Infof("Run cri-containerd %+v", o)
-
-		if o.CgroupPath != "" {
-			_, err := loadCgroup(o.CgroupPath)
-			if err != nil {
-				return fmt.Errorf("failed to load cgroup for cgroup path %v: %v", o.CgroupPath, err)
-			}
-		}
-
-		if o.OOMScore != 0 {
-			if err := sys.SetOOMScore(os.Getpid(), o.OOMScore); err != nil {
-				return fmt.Errorf("failed to set OOMScore to %v: %v", o.OOMScore, err)
-			}
-		}
-
-		// Start profiling server if enable.
-		if o.EnableProfiling {
-			logrus.Info("Start profiling server")
-			go startProfilingServer(o.ProfilingAddress, o.ProfilingPort)
-		}
-
-		logrus.Infof("Run cri-containerd grpc server on socket %q", o.SocketPath)
-		s, err := server.NewCRIContainerdService(o.Config)
-		if err != nil {
-			return fmt.Errorf("failed to create CRI containerd service: %v", err)
-		}
-		// Use interrupt handler to make sure the server is stopped properly.
-		// Pass in non-empty final function to avoid os.Exit(1). We expect `Run`
-		// to return itself.
-		h := interrupt.New(func(os.Signal) {}, func() {
-			if err := s.Close(); err != nil {
-				logrus.WithError(err).Error("Failed to stop cri service")
-			}
-		})
-		if err := h.Run(func() error { return s.Run(true) }); err != nil {
-			return fmt.Errorf("failed to run cri-containerd with grpc server: %v", err)
-		}
-		return nil
-	}
-
-	if err := cmd.Execute(); err != nil {
-		// Error should have been reported.
-		os.Exit(1)
-	}
-}
-
-func setupDumpStacksTrap() {
-	c := make(chan os.Signal, 1)
-	signal.Notify(c, syscall.SIGUSR1)
-	go func() {
-		for range c {
-			dumpStacks()
-		}
-	}()
-}
-
-func dumpStacks() {
-	buf := make([]byte, 1024)
-	for {
-		n := runtime.Stack(buf, true)
-		if n < len(buf) {
-			buf = buf[:n]
-			break
-		}
-		buf = make([]byte, 2*len(buf))
-	}
-	logrus.Infof("=== BEGIN goroutine stack dump ===\n%s\n=== END goroutine stack dump ===", buf)
-}
-
-// startProfilingServer start http server to profiling via web interface
-func startProfilingServer(host string, port string) {
-	endpoint := net.JoinHostPort(host, port)
-	mux := http.NewServeMux()
-	mux.HandleFunc("/debug/pprof/", pprof.Index)
-	mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
-	mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
-	mux.HandleFunc("/debug/pprof/trace", pprof.Trace)
-	if err := http.ListenAndServe(endpoint, mux); err != nil {
-		logrus.WithError(err).Error("Failed to start profiling server")
-	}
-}
-
-func setLogLevel(l string) error {
-	lvl, err := log.ParseLevel(l)
-	if err != nil {
-		return err
-	}
-	if err := setGLogLevel(lvl); err != nil {
-		return err
-	}
-	logrus.SetLevel(lvl)
-	return nil
-}
-
-// TODO(random-liu): Set glog level in plugin mode.
-func setGLogLevel(l logrus.Level) error {
-	if err := flag.Set("logtostderr", "true"); err != nil {
-		return err
-	}
-	switch l {
-	case log.TraceLevel:
-		return flag.Set("v", "5")
-	case logrus.DebugLevel:
-		return flag.Set("v", "4")
-	case logrus.InfoLevel:
-		return flag.Set("v", "2")
-	// glog doesn't support following filters. Defaults to v=0.
-	case logrus.WarnLevel:
-	case logrus.ErrorLevel:
-	case logrus.FatalLevel:
-	case logrus.PanicLevel:
-	}
-	return nil
-}
-
-// loadCgroup loads the cgroup associated with path if it exists and moves the current process into the cgroup. If the cgroup
-// is not created it is created and returned.
-func loadCgroup(cgroupPath string) (cgroups.Cgroup, error) {
-	cg, err := cgroups.Load(cgroups.V1, cgroups.StaticPath(cgroupPath))
-	if err != nil {
-		if err != cgroups.ErrCgroupDeleted {
-			return nil, err
-		}
-		if cg, err = cgroups.New(cgroups.V1, cgroups.StaticPath(cgroupPath), &runtimespec.LinuxResources{}); err != nil {
-			return nil, err
-		}
-	}
-	if err := cg.Add(cgroups.Process{
-		Pid: os.Getpid(),
-	}); err != nil {
-		return nil, err
-	}
-	return cg, nil
-}
diff --git a/cmd/cri-containerd/options/options.go b/cmd/cri-containerd/options/options.go
deleted file mode 100644
index 3f1edfecb..000000000
--- a/cmd/cri-containerd/options/options.go
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
-Copyright 2017 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package options
-
-import (
-	"fmt"
-	"os"
-
-	"github.com/BurntSushi/toml"
-	"github.com/containerd/containerd"
-	"github.com/spf13/pflag"
-)
-
-const (
-	// configFilePathArgName is the path to the config file.
-	configFilePathArgName = "config"
-	// defaultConfigFilePath is the default config file path.
-	defaultConfigFilePath = "/etc/cri-containerd/config.toml"
-)
-
-// ContainerdConfig contains toml config related to containerd
-type ContainerdConfig struct {
-	// RootDir is the root directory path for containerd.
-	// TODO(random-liu): Remove this field when no longer support cri-containerd standalone mode.
-	RootDir string `toml:"root_dir" json:"rootDir,omitempty"`
-	// Snapshotter is the snapshotter used by containerd.
-	Snapshotter string `toml:"snapshotter" json:"snapshotter,omitempty"`
-	// Endpoint is the containerd endpoint path.
-	// TODO(random-liu): Remove this field when no longer support cri-containerd standalone mode.
-	Endpoint string `toml:"endpoint" json:"endpoint,omitempty"`
-	// Runtime is the runtime to use in containerd. We may support
-	// other runtimes in the future.
-	Runtime string `toml:"runtime" json:"runtime,omitempty"`
-	// RuntimeEngine is the name of the runtime engine used by containerd.
-	// Containerd default should be "runc"
-	// We may support other runtime engines in the future.
-	RuntimeEngine string `toml:"runtime_engine" json:"runtimeEngine,omitempty"`
-	// RuntimeRoot is the directory used by containerd for runtime state.
-	// Containerd default should be "/run/containerd/runc"
-	RuntimeRoot string `toml:"runtime_root" json:"runtimeRoot,omitempty"`
-}
-
-// CniConfig contains toml config related to cni
-type CniConfig struct {
-	// NetworkPluginBinDir is the directory in which the binaries for the plugin is kept.
-	NetworkPluginBinDir string `toml:"bin_dir" json:"binDir,omitempty"`
-	// NetworkPluginConfDir is the directory in which the admin places a CNI conf.
-	NetworkPluginConfDir string `toml:"conf_dir" json:"confDir,omitempty"`
-}
-
-// PluginConfig contains toml config related to CRI plugin,
-// it is a subset of Config.
-type PluginConfig struct {
-	// ContainerdConfig contains config related to containerd
-	ContainerdConfig `toml:"containerd" json:"containerd,omitempty"`
-	// CniConfig contains config related to cni
-	CniConfig `toml:"cni" json:"cni,omitempty"`
-	// Registry contains config related to the registry
-	Registry `toml:"registry" json:"registry,omitempty"`
-	// StreamServerAddress is the ip address streaming server is listening on.
-	StreamServerAddress string `toml:"stream_server_address" json:"streamServerAddress,omitempty"`
-	// StreamServerPort is the port streaming server is listening on.
-	StreamServerPort string `toml:"stream_server_port" json:"streamServerPort,omitempty"`
-	// EnableSelinux indicates to enable the selinux support.
-	EnableSelinux bool `toml:"enable_selinux" json:"enableSelinux,omitempty"`
-	// SandboxImage is the image used by sandbox container.
-	SandboxImage string `toml:"sandbox_image" json:"sandboxImage,omitempty"`
-	// StatsCollectPeriod is the period (in seconds) of snapshots stats collection.
-	StatsCollectPeriod int `toml:"stats_collect_period" json:"statsCollectPeriod,omitempty"`
-	// SystemdCgroup enables systemd cgroup support.
-	SystemdCgroup bool `toml:"systemd_cgroup" json:"systemdCgroup,omitempty"`
-	// EnableIPv6DAD enables IPv6 DAD.
-	// TODO(random-liu): Use optimistic_dad when it's GA.
-	EnableIPv6DAD bool `toml:"enable_ipv6_dad" json:"enableIPv6DAD,omitempty"`
-}
-
-// Config contains toml config related cri-containerd daemon.
-// TODO(random-liu): Make this an internal config object when we no longer support cri-containerd
-// standalone mode. At that time, we can clean this up.
-type Config struct {
-	// PluginConfig is the config for CRI plugin.
-	PluginConfig
-	// ContainerdRootDir is the root directory path for containerd.
-	ContainerdRootDir string `toml:"-" json:"containerdRootDir,omitempty"`
-	// ContainerdEndpoint is the containerd endpoint path.
-	ContainerdEndpoint string `toml:"-" json:"containerdEndpoint,omitempty"`
-	// SocketPath is the path to the socket which cri-containerd serves on.
-	// TODO(random-liu): Remove SocketPath when no longer support cri-containerd
-	// standalone mode.
-	SocketPath string `toml:"socket_path" json:"socketPath,omitempty"`
-	// RootDir is the root directory path for managing cri-containerd files
-	// (metadata checkpoint etc.)
-	RootDir string `toml:"root_dir" json:"rootDir,omitempty"`
-	// TODO(random-liu): Remove following fields when we no longer support cri-containerd
-	// standalone mode.
-	// CgroupPath is the path for the cgroup that cri-containerd is placed in.
-	CgroupPath string `toml:"cgroup_path" json:"cgroupPath,omitempty"`
-	// OOMScore adjust the cri-containerd's oom score
-	OOMScore int `toml:"oom_score" json:"oomScore,omitempty"`
-	// EnableProfiling is used for enable profiling via host:port/debug/pprof/
-	EnableProfiling bool `toml:"profiling" json:"enableProfiling,omitempty"`
-	// ProfilingPort is the port for profiling via host:port/debug/pprof/
-	ProfilingPort string `toml:"profiling_port" json:"profilingPort,omitempty"`
-	// ProfilingAddress is address for profiling via host:port/debug/pprof/
-	ProfilingAddress string `toml:"profiling_addr" json:"profilingAddress,omitempty"`
-	// LogLevel is the logrus log level.
-	LogLevel string `toml:"log_level" json:"logLevel,omitempty"`
-}
-
-// CRIContainerdOptions contains cri-containerd command line and toml options.
-type CRIContainerdOptions struct {
-	// Config contains cri-containerd toml config
-	Config
-	// ConfigFilePath is the path to the TOML config file.
-	ConfigFilePath string `toml:"-"`
-}
-
-// NewCRIContainerdOptions returns a reference to CRIContainerdOptions
-func NewCRIContainerdOptions() *CRIContainerdOptions {
-	return &CRIContainerdOptions{}
-}
-
-// AddFlags adds cri-containerd command line options to pflag.
-func (c *CRIContainerdOptions) AddFlags(fs *pflag.FlagSet) {
-	defaults := DefaultConfig()
-	fs.StringVar(&c.ConfigFilePath, configFilePathArgName,
-		defaultConfigFilePath, "Path to the config file.")
-	fs.StringVar(&c.LogLevel, "log-level",
-		defaults.LogLevel, "Set the logging level [trace, debug, info, warn, error, fatal, panic].")
-	fs.StringVar(&c.SocketPath, "socket-path",
-		defaults.SocketPath, "Path to the socket which cri-containerd serves on.")
-	fs.StringVar(&c.RootDir, "root-dir",
-		defaults.RootDir, "Root directory path for cri-containerd managed files (metadata checkpoint etc).")
-	fs.StringVar(&c.ContainerdRootDir, "containerd-root-dir",
-		defaults.ContainerdRootDir, "Root directory path where containerd stores persistent data.")
-	fs.StringVar(&c.ContainerdEndpoint, "containerd-endpoint",
-		defaults.ContainerdEndpoint, "Path to the containerd endpoint.")
-	fs.StringVar(&c.ContainerdConfig.Snapshotter, "containerd-snapshotter",
-		defaults.ContainerdConfig.Snapshotter, "The snapshotter used by containerd.")
-	fs.StringVar(&c.ContainerdConfig.Runtime, "containerd-runtime",
-		defaults.ContainerdConfig.Runtime, "The runtime used by containerd.")
-	fs.StringVar(&c.ContainerdConfig.RuntimeEngine, "containerd-runtime-engine",
-		defaults.ContainerdConfig.RuntimeEngine, "Runtime engine used by containerd. Defaults to containerd's default if not specified.")
-	fs.StringVar(&c.ContainerdConfig.RuntimeRoot, "containerd-runtime-root",
-		defaults.ContainerdConfig.RuntimeRoot, "The directory used by containerd for runtime state. Defaults to containerd's default if not specified.")
-	fs.StringVar(&c.NetworkPluginBinDir, "network-bin-dir",
-		defaults.NetworkPluginBinDir, "The directory for putting network binaries.")
-	fs.StringVar(&c.NetworkPluginConfDir, "network-conf-dir",
-		defaults.NetworkPluginConfDir, "The directory for putting network plugin configuration files.")
-	fs.StringVar(&c.StreamServerAddress, "stream-addr",
-		defaults.StreamServerAddress, "The ip address streaming server is listening on. The default host interface is used if not specified.")
-	fs.StringVar(&c.StreamServerPort, "stream-port",
-		defaults.StreamServerPort, "The port streaming server is listening on.")
-	fs.StringVar(&c.CgroupPath, "cgroup-path",
-		defaults.CgroupPath, "The cgroup that cri-containerd is part of. Cri-containerd is not placed in a cgroup if none is specified.")
-	fs.BoolVar(&c.EnableSelinux, "enable-selinux",
-		defaults.EnableSelinux, "Enable selinux support. By default not enabled.")
-	fs.StringVar(&c.SandboxImage, "sandbox-image",
-		defaults.SandboxImage, "The image used by sandbox container.")
-	fs.IntVar(&c.StatsCollectPeriod, "stats-collect-period",
-		defaults.StatsCollectPeriod, "The period (in seconds) of snapshots stats collection.")
-	fs.BoolVar(&c.SystemdCgroup, "systemd-cgroup",
-		defaults.SystemdCgroup, "Enables systemd cgroup support. By default not enabled.")
-	fs.IntVar(&c.OOMScore, "oom-score",
-		defaults.OOMScore, "Adjust the cri-containerd's oom score.")
-	fs.BoolVar(&c.EnableProfiling, "profiling",
-		defaults.EnableProfiling, "Enable profiling via web interface host:port/debug/pprof/.")
-	fs.StringVar(&c.ProfilingPort, "profiling-port",
-		defaults.ProfilingPort, "Profiling port for web interface host:port/debug/pprof/.")
-	fs.StringVar(&c.ProfilingAddress, "profiling-addr",
-		defaults.ProfilingAddress, "Profiling address for web interface host:port/debug/pprof/.")
-	fs.BoolVar(&c.EnableIPv6DAD, "enable-ipv6-dad",
-		defaults.EnableIPv6DAD, "Enable IPv6 DAD (duplicate address detection) for pod sandbox network. Enabling this will increase pod sandbox start latency by several seconds.")
-	fs.Var(&c.Registry, "registry",
-		"Registry config for image pull eg --registry=myregistry.io=https://mymirror.io/ --registry=myregistry2.io=https://mymirror2.io/")
-}
-
-// InitFlags load configurations from config file, and then overwrite with flags.
-// This function must be called inside `Run`, at that time flags should have been
-// parsed once.
-// precedence:  commandline > configfile > default
-func (c *CRIContainerdOptions) InitFlags(fs *pflag.FlagSet) error {
-	// Load default config file if none provided
-	if _, err := toml.DecodeFile(c.ConfigFilePath, &c.Config); err != nil {
-		// the absence of default config file is normal case.
-		if !fs.Changed(configFilePathArgName) && os.IsNotExist(err) {
-			return nil
-		}
-		return err
-	}
-	// Add this for backward compatibility.
-	// TODO(random-liu): Remove this when we no longer support cri-containerd standalone mode.
-	if c.ContainerdConfig.RootDir != "" {
-		c.ContainerdRootDir = c.ContainerdConfig.RootDir
-	}
-	if c.ContainerdConfig.Endpoint != "" {
-		c.ContainerdEndpoint = c.ContainerdConfig.Endpoint
-	}
-
-	// What is the reason for applying the command line twice?
-	// Because the values from command line have the highest priority.
-	// The path of toml configuration file if from the command line,
-	// and triggers the first parse.
-	// The first parse generates the default value and the value from command line at the same time.
-	// But the priority of the toml config value is higher than the default value,
-	// Without a way to insert the toml config value between the default value and the command line value.
-	// We parse twice one for default value, one for commandline value.
-	return fs.Parse(os.Args[1:])
-}
-
-// PrintDefaultTomlConfig print default toml config of cri-containerd.
-func PrintDefaultTomlConfig() {
-	if err := toml.NewEncoder(os.Stdout).Encode(DefaultConfig()); err != nil {
-		fmt.Println(err)
-		return
-	}
-}
-
-// DefaultConfig returns default configurations of cri-containerd.
-func DefaultConfig() Config {
-	return Config{
-		PluginConfig: PluginConfig{
-			CniConfig: CniConfig{
-				NetworkPluginBinDir:  "/opt/cni/bin",
-				NetworkPluginConfDir: "/etc/cni/net.d",
-			},
-			ContainerdConfig: ContainerdConfig{
-				Snapshotter:   containerd.DefaultSnapshotter,
-				Runtime:       "io.containerd.runtime.v1.linux",
-				RuntimeEngine: "",
-				RuntimeRoot:   "",
-			},
-			StreamServerAddress: "",
-			StreamServerPort:    "10010",
-			EnableSelinux:       false,
-			SandboxImage:        "gcr.io/google_containers/pause:3.0",
-			StatsCollectPeriod:  10,
-			SystemdCgroup:       false,
-			EnableIPv6DAD:       false,
-			Registry: Registry{
-				Mirrors: map[string]Mirror{
-					"docker.io": {
-						Endpoints: []string{"https://registry-1.docker.io"},
-					},
-				},
-			},
-		},
-		ContainerdRootDir:  "/var/lib/containerd",
-		ContainerdEndpoint: "/run/containerd/containerd.sock",
-		SocketPath:         "/var/run/cri-containerd.sock",
-		RootDir:            "/var/lib/cri-containerd",
-		CgroupPath:         "",
-		OOMScore:           -999,
-		EnableProfiling:    true,
-		ProfilingPort:      "10011",
-		ProfilingAddress:   "127.0.0.1",
-		LogLevel:           "info",
-	}
-}
diff --git a/cmd/cri-containerd/options/registry.go b/cmd/cri-containerd/options/registry.go
deleted file mode 100644
index 7f057ee4c..000000000
--- a/cmd/cri-containerd/options/registry.go
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
-Copyright 2018 The Containerd Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package options
-
-import (
-	"fmt"
-	"net/url"
-	"strings"
-)
-
-// Mirror contains the config related to the registry mirror
-type Mirror struct {
-	Endpoints []string `toml:"endpoint" json:"endpoint,omitempty"`
-	// TODO (Abhi) We might need to add auth per namespace. Looks like
-	// image auth information is passed by kube itself.
-}
-
-// Registry is registry settings configured
-type Registry struct {
-	Mirrors map[string]Mirror `toml:"mirrors" json:"mirrors,omitempty"`
-}
-
-// String returns the string format of registry type
-func (r *Registry) String() string {
-	// Its not used hence return empty string
-	return ""
-}
-
-// Set validates and converts into the internal registry struct
-func (r *Registry) Set(s string) error {
-	// --registry docker.io=https://mymirror.io,http://mymirror2.io
-	// If no option is set then return format error
-	if len(s) == 0 {
-		return fmt.Errorf("incomplete registry mirror option")
-	}
-	var mirrors []string
-	host := "docker.io"
-	opt := strings.Split(s, "=")
-	if len(opt) > 1 {
-		// If option is set in the format "mynamespace.io=https://mymirror.io,https://mymirror2.io"
-		// Then associate the mirror urls for the namespace only"
-		host = opt[0]
-		mirrors = strings.Split(opt[1], ",")
-	} else {
-		// If option is set in the format "https://mymirror.io,https://mymirror.io"
-		// Then associate mirror against default docker.io namespace
-		mirrors = strings.Split(opt[0], ",")
-	}
-
-	// Validate the format of the urls passed
-	for _, u := range mirrors {
-		_, err := url.Parse(u)
-		if err != nil {
-			return fmt.Errorf("invalid registry mirror url format %v: %v", u, err)
-		}
-	}
-
-	if r.Mirrors == nil {
-		r.Mirrors = make(map[string]Mirror)
-	}
-	if _, ok := r.Mirrors[host]; !ok {
-		r.Mirrors[host] = Mirror{}
-	}
-	m := r.Mirrors[host]
-	m.Endpoints = append(m.Endpoints, mirrors...)
-	r.Mirrors[host] = m
-
-	return nil
-}
-
-// Type returns a string name for the option type
-func (r *Registry) Type() string {
-	return "list"
-}
diff --git a/cmd/ctrcri/ctrcri.go b/cmd/ctrcri/ctrcri.go
index 63276cf75..67811d4c3 100644
--- a/cmd/ctrcri/ctrcri.go
+++ b/cmd/ctrcri/ctrcri.go
@@ -20,10 +20,10 @@ import (
 	"os"
 	"time"
 
+	"github.com/containerd/containerd/defaults"
 	"github.com/spf13/cobra"
 	"github.com/spf13/pflag"
 
-	"github.com/containerd/cri-containerd/cmd/cri-containerd/options"
 	"github.com/containerd/cri-containerd/pkg/version"
 )
 
@@ -56,9 +56,7 @@ var (
 )
 
 func addGlobalFlags(fs *pflag.FlagSet) {
-	// TODO(random-liu): Change default to containerd/defaults.DefaultAddress after cri plugin
-	// become default.
-	fs.StringVar(&address, "address", options.DefaultConfig().SocketPath, "address for containerd's GRPC server.")
+	fs.StringVar(&address, "address", defaults.DefaultAddress, "address for containerd's GRPC server.")
 	fs.DurationVar(&timeout, "timeout", defaultTimeout, "timeout for containerd grpc connection.")
 }
 
diff --git a/cri.go b/cri.go
index fdcdf81cb..4da21e910 100644
--- a/cri.go
+++ b/cri.go
@@ -17,6 +17,7 @@ limitations under the License.
 package cri
 
 import (
+	"flag"
 	"path/filepath"
 
 	"github.com/containerd/containerd/log"
@@ -24,8 +25,9 @@ import (
 	"github.com/containerd/containerd/plugin"
 	imagespec "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
 
-	"github.com/containerd/cri-containerd/cmd/cri-containerd/options"
+	criconfig "github.com/containerd/cri-containerd/pkg/config"
 	"github.com/containerd/cri-containerd/pkg/server"
 )
 
@@ -35,7 +37,7 @@ const criVersion = "v1alpha2"
 // TODO(random-liu): Use github.com/pkg/errors for our errors.
 // Register CRI service plugin
 func init() {
-	config := options.DefaultConfig().PluginConfig
+	config := criconfig.DefaultConfig()
 	plugin.Register(&plugin.Registration{
 		Type:   plugin.GRPCPlugin,
 		ID:     "cri",
@@ -57,8 +59,8 @@ func initCRIService(ic *plugin.InitContext) (interface{}, error) {
 	ic.Meta.Platforms = []imagespec.Platform{platforms.DefaultSpec()}
 	ic.Meta.Exports = map[string]string{"CRIVersion": criVersion}
 	ctx := ic.Context
-	pluginConfig := ic.Config.(*options.PluginConfig)
-	c := options.Config{
+	pluginConfig := ic.Config.(*criconfig.PluginConfig)
+	c := criconfig.Config{
 		PluginConfig: *pluginConfig,
 		// This is a hack. We assume that containerd root directory
 		// is one level above plugin directory.
@@ -69,6 +71,10 @@ func initCRIService(ic *plugin.InitContext) (interface{}, error) {
 	}
 	log.G(ctx).Infof("Start cri plugin with config %+v", c)
 
+	if err := setGLogLevel(); err != nil {
+		return nil, errors.Wrap(err, "failed to set glog level")
+	}
+
 	s, err := server.NewCRIContainerdService(c)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to create CRI service")
@@ -77,10 +83,32 @@ func initCRIService(ic *plugin.InitContext) (interface{}, error) {
 	// Use a goroutine to initialize cri service. The reason is that currently
 	// cri service requires containerd to be initialize.
 	go func() {
-		if err := s.Run(false); err != nil {
+		if err := s.Run(); err != nil {
 			log.G(ctx).WithError(err).Fatal("Failed to run CRI service")
 		}
 		// TODO(random-liu): Whether and how we can stop containerd.
 	}()
 	return s, nil
 }
+
+// Set glog level.
+func setGLogLevel() error {
+	l := logrus.GetLevel()
+	if err := flag.Set("logtostderr", "true"); err != nil {
+		return err
+	}
+	switch l {
+	case log.TraceLevel:
+		return flag.Set("v", "5")
+	case logrus.DebugLevel:
+		return flag.Set("v", "4")
+	case logrus.InfoLevel:
+		return flag.Set("v", "2")
+	// glog doesn't support following filters. Defaults to v=0.
+	case logrus.WarnLevel:
+	case logrus.ErrorLevel:
+	case logrus.FatalLevel:
+	case logrus.PanicLevel:
+	}
+	return nil
+}
diff --git a/pkg/config/config.go b/pkg/config/config.go
new file mode 100644
index 000000000..102be9f14
--- /dev/null
+++ b/pkg/config/config.go
@@ -0,0 +1,127 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package config
+
+import "github.com/containerd/containerd"
+
+// ContainerdConfig contains toml config related to containerd
+type ContainerdConfig struct {
+	// Snapshotter is the snapshotter used by containerd.
+	Snapshotter string `toml:"snapshotter" json:"snapshotter,omitempty"`
+	// Runtime is the runtime to use in containerd. We may support
+	// other runtimes in the future.
+	Runtime string `toml:"runtime" json:"runtime,omitempty"`
+	// RuntimeEngine is the name of the runtime engine used by containerd.
+	// Containerd default should be "runc"
+	// We may support other runtime engines in the future.
+	RuntimeEngine string `toml:"runtime_engine" json:"runtimeEngine,omitempty"`
+	// RuntimeRoot is the directory used by containerd for runtime state.
+	// Containerd default should be "/run/containerd/runc"
+	RuntimeRoot string `toml:"runtime_root" json:"runtimeRoot,omitempty"`
+}
+
+// CniConfig contains toml config related to cni
+type CniConfig struct {
+	// NetworkPluginBinDir is the directory in which the binaries for the plugin is kept.
+	NetworkPluginBinDir string `toml:"bin_dir" json:"binDir,omitempty"`
+	// NetworkPluginConfDir is the directory in which the admin places a CNI conf.
+	NetworkPluginConfDir string `toml:"conf_dir" json:"confDir,omitempty"`
+}
+
+// Mirror contains the config related to the registry mirror
+type Mirror struct {
+	// Endpoints are endpoints for a namespace. CRI plugin will try the endpoints
+	// one by one until a working one is found.
+	Endpoints []string `toml:"endpoint" json:"endpoint,omitempty"`
+	// TODO (Abhi) We might need to add auth per namespace. Looks like
+	// image auth information is passed by kube itself.
+}
+
+// Registry is registry settings configured
+type Registry struct {
+	// Mirrors are namespace to mirror mapping for all namespaces.
+	Mirrors map[string]Mirror `toml:"mirrors" json:"mirrors,omitempty"`
+}
+
+// PluginConfig contains toml config related to CRI plugin,
+// it is a subset of Config.
+type PluginConfig struct {
+	// ContainerdConfig contains config related to containerd
+	ContainerdConfig `toml:"containerd" json:"containerd,omitempty"`
+	// CniConfig contains config related to cni
+	CniConfig `toml:"cni" json:"cni,omitempty"`
+	// Registry contains config related to the registry
+	Registry `toml:"registry" json:"registry,omitempty"`
+	// StreamServerAddress is the ip address streaming server is listening on.
+	StreamServerAddress string `toml:"stream_server_address" json:"streamServerAddress,omitempty"`
+	// StreamServerPort is the port streaming server is listening on.
+	StreamServerPort string `toml:"stream_server_port" json:"streamServerPort,omitempty"`
+	// EnableSelinux indicates to enable the selinux support.
+	EnableSelinux bool `toml:"enable_selinux" json:"enableSelinux,omitempty"`
+	// SandboxImage is the image used by sandbox container.
+	SandboxImage string `toml:"sandbox_image" json:"sandboxImage,omitempty"`
+	// StatsCollectPeriod is the period (in seconds) of snapshots stats collection.
+	StatsCollectPeriod int `toml:"stats_collect_period" json:"statsCollectPeriod,omitempty"`
+	// SystemdCgroup enables systemd cgroup support.
+	SystemdCgroup bool `toml:"systemd_cgroup" json:"systemdCgroup,omitempty"`
+	// EnableIPv6DAD enables IPv6 DAD.
+	// TODO(random-liu): Use optimistic_dad when it's GA.
+	EnableIPv6DAD bool `toml:"enable_ipv6_dad" json:"enableIPv6DAD,omitempty"`
+}
+
+// Config contains all configurations for cri server.
+type Config struct {
+	// PluginConfig is the config for CRI plugin.
+	PluginConfig
+	// ContainerdRootDir is the root directory path for containerd.
+	ContainerdRootDir string `json:"containerdRootDir,omitempty"`
+	// ContainerdEndpoint is the containerd endpoint path.
+	ContainerdEndpoint string `json:"containerdEndpoint,omitempty"`
+	// RootDir is the root directory path for managing cri-containerd files
+	// (metadata checkpoint etc.)
+	RootDir string `json:"rootDir,omitempty"`
+}
+
+// DefaultConfig returns default configurations of cri plugin.
+func DefaultConfig() PluginConfig {
+	return PluginConfig{
+		CniConfig: CniConfig{
+			NetworkPluginBinDir:  "/opt/cni/bin",
+			NetworkPluginConfDir: "/etc/cni/net.d",
+		},
+		ContainerdConfig: ContainerdConfig{
+			Snapshotter:   containerd.DefaultSnapshotter,
+			Runtime:       "io.containerd.runtime.v1.linux",
+			RuntimeEngine: "",
+			RuntimeRoot:   "",
+		},
+		StreamServerAddress: "",
+		StreamServerPort:    "10010",
+		EnableSelinux:       false,
+		SandboxImage:        "gcr.io/google_containers/pause:3.0",
+		StatsCollectPeriod:  10,
+		SystemdCgroup:       false,
+		EnableIPv6DAD:       false,
+		Registry: Registry{
+			Mirrors: map[string]Mirror{
+				"docker.io": {
+					Endpoints: []string{"https://registry-1.docker.io"},
+				},
+			},
+		},
+	}
+}
diff --git a/pkg/server/service.go b/pkg/server/service.go
index f502709db..f5930800e 100644
--- a/pkg/server/service.go
+++ b/pkg/server/service.go
@@ -19,10 +19,7 @@ package server
 import (
 	"fmt"
 	"io"
-	"net"
-	"os"
 	"path/filepath"
-	"syscall"
 	"time"
 
 	"github.com/containerd/containerd"
@@ -37,9 +34,9 @@ import (
 	runtime "k8s.io/kubernetes/pkg/kubelet/apis/cri/runtime/v1alpha2"
 	"k8s.io/kubernetes/pkg/kubelet/server/streaming"
 
-	"github.com/containerd/cri-containerd/cmd/cri-containerd/options"
 	api "github.com/containerd/cri-containerd/pkg/api/v1"
 	"github.com/containerd/cri-containerd/pkg/atomic"
+	criconfig "github.com/containerd/cri-containerd/pkg/config"
 	osinterface "github.com/containerd/cri-containerd/pkg/os"
 	"github.com/containerd/cri-containerd/pkg/registrar"
 	containerstore "github.com/containerd/cri-containerd/pkg/store/container"
@@ -48,12 +45,8 @@ import (
 	snapshotstore "github.com/containerd/cri-containerd/pkg/store/snapshot"
 )
 
-const (
-	// k8sContainerdNamespace is the namespace we use to connect containerd.
-	k8sContainerdNamespace = "k8s.io"
-	// unixProtocol is the network protocol of unix socket.
-	unixProtocol = "unix"
-)
+// k8sContainerdNamespace is the namespace we use to connect containerd.
+const k8sContainerdNamespace = "k8s.io"
 
 // grpcServices are all the grpc services provided by cri containerd.
 type grpcServices interface {
@@ -64,7 +57,7 @@ type grpcServices interface {
 
 // CRIContainerdService is the interface implement CRI remote service server.
 type CRIContainerdService interface {
-	Run(bool) error
+	Run() error
 	// io.Closer is used by containerd to gracefully stop cri service.
 	io.Closer
 	plugin.Service
@@ -74,15 +67,13 @@ type CRIContainerdService interface {
 // criContainerdService implements CRIContainerdService.
 type criContainerdService struct {
 	// config contains all configurations.
-	config options.Config
+	config criconfig.Config
 	// imageFSPath is the path to image filesystem.
 	imageFSPath string
 	// apparmorEnabled indicates whether apparmor is enabled.
 	apparmorEnabled bool
 	// seccompEnabled indicates whether seccomp is enabled.
 	seccompEnabled bool
-	// server is the grpc server.
-	server *grpc.Server
 	// os is an interface for all required os operations.
 	os osinterface.OS
 	// sandboxStore stores all resources associated with sandboxes.
@@ -113,7 +104,7 @@ type criContainerdService struct {
 }
 
 // NewCRIContainerdService returns a new instance of CRIContainerdService
-func NewCRIContainerdService(config options.Config) (CRIContainerdService, error) {
+func NewCRIContainerdService(config criconfig.Config) (CRIContainerdService, error) {
 	var err error
 	c := &criContainerdService{
 		config:             config,
@@ -153,12 +144,6 @@ func NewCRIContainerdService(config options.Config) (CRIContainerdService, error
 
 	c.eventMonitor = newEventMonitor(c.containerStore, c.sandboxStore)
 
-	// To avoid race condition between `Run` and `Stop`, still create grpc server
-	// although we may not use it. It's just a small in-memory data structure.
-	// TODO(random-liu): Get rid of the grpc server when completely switch
-	// to plugin mode.
-	c.server = grpc.NewServer()
-
 	return c, nil
 }
 
@@ -172,11 +157,8 @@ func (c *criContainerdService) Register(s *grpc.Server) error {
 	return nil
 }
 
-// Run starts the cri-containerd service. startGRPC specifies
-// whether to start grpc server in this function.
-// TODO(random-liu): Remove `startRPC=true` case when we no longer support cri-containerd
-// standalone mode.
-func (c *criContainerdService) Run(startGRPC bool) error {
+// Run starts the cri-containerd service.
+func (c *criContainerdService) Run() error {
 	logrus.Info("Start cri-containerd service")
 
 	// Connect containerd service here, to get rid of the containerd dependency
@@ -226,35 +208,10 @@ func (c *criContainerdService) Run(startGRPC bool) error {
 	// Set the server as initialized. GRPC services could start serving traffic.
 	c.initialized.Set()
 
-	grpcServerCloseCh := make(chan struct{})
-	if startGRPC {
-		// Create the grpc server and register runtime and image services.
-		c.Register(c.server) // nolint: errcheck
-		// Start grpc server.
-		// Unlink to cleanup the previous socket file.
-		logrus.Info("Start grpc server")
-		err := syscall.Unlink(c.config.SocketPath)
-		if err != nil && !os.IsNotExist(err) {
-			return fmt.Errorf("failed to unlink socket file %q: %v", c.config.SocketPath, err)
-		}
-		l, err := net.Listen(unixProtocol, c.config.SocketPath)
-		if err != nil {
-			return fmt.Errorf("failed to listen on %q: %v", c.config.SocketPath, err)
-		}
-		go func() {
-			if err := c.server.Serve(l); err != nil {
-				logrus.WithError(err).Error("Failed to serve grpc request")
-			}
-			close(grpcServerCloseCh)
-		}()
-	}
-	// Keep grpcServerCloseCh open if grpc server is not started.
-
 	// Stop the whole cri-containerd service if any of the critical service exits.
 	select {
 	case <-eventMonitorCloseCh:
 	case <-streamServerCloseCh:
-	case <-grpcServerCloseCh:
 	}
 	if err := c.Close(); err != nil {
 		return fmt.Errorf("failed to stop cri service: %v", err)
@@ -277,11 +234,6 @@ func (c *criContainerdService) Run(startGRPC bool) error {
 	case <-time.After(streamServerStopTimeout):
 		logrus.Errorf("Stream server is not stopped in %q", streamServerStopTimeout)
 	}
-	if startGRPC {
-		// Only wait for grpc server close channel when grpc server is started.
-		<-grpcServerCloseCh
-		logrus.Info("GRPC server stopped")
-	}
 	return nil
 }
 
@@ -293,7 +245,6 @@ func (c *criContainerdService) Close() error {
 	if err := c.streamServer.Stop(); err != nil {
 		return fmt.Errorf("failed to stop stream server: %v", err)
 	}
-	c.server.Stop()
 	return nil
 }
 
diff --git a/pkg/server/service_test.go b/pkg/server/service_test.go
index 0743ee4d4..51bdf34d8 100644
--- a/pkg/server/service_test.go
+++ b/pkg/server/service_test.go
@@ -17,7 +17,7 @@ limitations under the License.
 package server
 
 import (
-	"github.com/containerd/cri-containerd/cmd/cri-containerd/options"
+	criconfig "github.com/containerd/cri-containerd/pkg/config"
 	ostesting "github.com/containerd/cri-containerd/pkg/os/testing"
 	"github.com/containerd/cri-containerd/pkg/registrar"
 	servertesting "github.com/containerd/cri-containerd/pkg/server/testing"
@@ -39,9 +39,9 @@ const (
 // newTestCRIContainerdService creates a fake criContainerdService for test.
 func newTestCRIContainerdService() *criContainerdService {
 	return &criContainerdService{
-		config: options.Config{
+		config: criconfig.Config{
 			RootDir: testRootDir,
-			PluginConfig: options.PluginConfig{
+			PluginConfig: criconfig.PluginConfig{
 				SandboxImage: testSandboxImage,
 			},
 		},