121 lines
3.4 KiB
Go
121 lines
3.4 KiB
Go
/*
|
|
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"
|
|
"os"
|
|
|
|
"github.com/docker/docker/pkg/reexec"
|
|
"github.com/golang/glog"
|
|
"github.com/opencontainers/selinux/go-selinux"
|
|
"github.com/spf13/cobra"
|
|
"k8s.io/kubernetes/pkg/util/interrupt"
|
|
|
|
"github.com/kubernetes-incubator/cri-containerd/cmd/cri-containerd/options"
|
|
"github.com/kubernetes-incubator/cri-containerd/pkg/server"
|
|
"github.com/kubernetes-incubator/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,
|
|
}
|
|
|
|
// Add golang flags as persistent flags.
|
|
func init() {
|
|
cmd.PersistentFlags().AddGoFlagSet(flag.CommandLine)
|
|
}
|
|
|
|
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() {
|
|
if reexec.Init() {
|
|
return
|
|
}
|
|
o := options.NewCRIContainerdOptions()
|
|
|
|
o.AddFlags(cmd.Flags())
|
|
cmd.AddCommand(defaultConfigCommand())
|
|
cmd.AddCommand(versionCommand())
|
|
|
|
cmd.Run = func(cmd *cobra.Command, args []string) {
|
|
if err := o.InitFlags(cmd.Flags()); err != nil {
|
|
glog.Exitf("Failed to init CRI containerd flags: %v", err)
|
|
}
|
|
validateConfig(o)
|
|
|
|
glog.V(0).Infof("Run cri-containerd %+v", o)
|
|
|
|
glog.V(2).Infof("Run cri-containerd grpc server on socket %q", o.SocketPath)
|
|
s, err := server.NewCRIContainerdService(o.Config)
|
|
if err != nil {
|
|
glog.Exitf("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) {}, s.Stop)
|
|
if err := h.Run(func() error { return s.Run() }); err != nil {
|
|
glog.Exitf("Failed to run cri-containerd grpc server: %v", err)
|
|
}
|
|
}
|
|
|
|
if err := cmd.Execute(); err != nil {
|
|
glog.Exitf("Failed to execute cri-containerd: %v", err)
|
|
}
|
|
}
|
|
|
|
func validateConfig(o *options.CRIContainerdOptions) {
|
|
if o.EnableSelinux {
|
|
if !selinux.GetEnabled() {
|
|
glog.Warning("Selinux is not supported")
|
|
}
|
|
} else {
|
|
selinux.SetDisabled()
|
|
}
|
|
}
|