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package main
import (
"encoding/json"
"fmt"
"net"
"os"
"strings"
"time"
"github.com/sirupsen/logrus"
"github.com/urfave/cli"
"google.golang.org/grpc"
pb "k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1/runtime"
)
// This is populated by the Makefile from the VERSION file
// in the repository
var version = ""
// gitCommit is the commit that the binary is being built from.
// It will be populated by the Makefile.
var gitCommit = ""
func getClientConnection(context *cli.Context) (*grpc.ClientConn, error) {
conn, err := grpc.Dial(context.GlobalString("connect"), grpc.WithInsecure(), grpc.WithTimeout(context.GlobalDuration("timeout")),
grpc.WithDialer(func(addr string, timeout time.Duration) (net.Conn, error) {
return net.DialTimeout("unix", addr, timeout)
}))
if err != nil {
return nil, fmt.Errorf("failed to connect: %v", err)
}
return conn, nil
}
func openFile(path string) (*os.File, error) {
f, err := os.Open(path)
if err != nil {
if os.IsNotExist(err) {
return nil, fmt.Errorf("config at %s not found", path)
}
return nil, err
}
return f, nil
}
func loadPodSandboxConfig(path string) (*pb.PodSandboxConfig, error) {
f, err := openFile(path)
if err != nil {
return nil, err
}
defer f.Close()
var config pb.PodSandboxConfig
if err := json.NewDecoder(f).Decode(&config); err != nil {
return nil, err
}
return &config, nil
}
func loadContainerConfig(path string) (*pb.ContainerConfig, error) {
f, err := openFile(path)
if err != nil {
return nil, err
}
defer f.Close()
var config pb.ContainerConfig
if err := json.NewDecoder(f).Decode(&config); err != nil {
return nil, err
}
return &config, nil
}
func main() {
app := cli.NewApp()
var v []string
if version != "" {
v = append(v, version)
}
if gitCommit != "" {
v = append(v, fmt.Sprintf("commit: %s", gitCommit))
}
app.Name = "crioctl"
app.Usage = "client for crio"
app.Version = strings.Join(v, "\n")
app.Commands = []cli.Command{
podSandboxCommand,
containerCommand,
runtimeVersionCommand,
imageCommand,
infoCommand,
}
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "connect",
Value: "/var/run/crio.sock",
Usage: "Socket to connect to",
},
cli.DurationFlag{
Name: "timeout",
Value: 10 * time.Second,
Usage: "Timeout of connecting to server",
},
}
if err := app.Run(os.Args); err != nil {
logrus.Fatal(err)
}
}
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