Remove standalone mode

Signed-off-by: Lantao Liu <lantaol@google.com>

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"},
+				},
+			},
+		},
+	}
+}