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Diffstat (limited to 'cmd/crio/main.go')
-rw-r--r--cmd/crio/main.go532
1 files changed, 0 insertions, 532 deletions
diff --git a/cmd/crio/main.go b/cmd/crio/main.go
deleted file mode 100644
index e58adb114..000000000
--- a/cmd/crio/main.go
+++ /dev/null
@@ -1,532 +0,0 @@
-package main
-
-import (
- "context"
- "fmt"
- "net"
- "net/http"
- _ "net/http/pprof"
- "os"
- "os/signal"
- "sort"
- "strings"
- "time"
-
- "github.com/containers/storage/pkg/reexec"
- "github.com/kubernetes-incubator/cri-o/libkpod"
- "github.com/kubernetes-incubator/cri-o/server"
- "github.com/kubernetes-incubator/cri-o/version"
- "github.com/opencontainers/selinux/go-selinux"
- "github.com/sirupsen/logrus"
- "github.com/soheilhy/cmux"
- "github.com/urfave/cli"
- "golang.org/x/sys/unix"
- "google.golang.org/grpc"
- "k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1/runtime"
-)
-
-// gitCommit is the commit that the binary is being built from.
-// It will be populated by the Makefile.
-var gitCommit = ""
-
-func validateConfig(config *server.Config) error {
- switch config.ImageVolumes {
- case libkpod.ImageVolumesMkdir:
- case libkpod.ImageVolumesIgnore:
- case libkpod.ImageVolumesBind:
- default:
- return fmt.Errorf("Unrecognized image volume type specified")
-
- }
-
- // This needs to match the read buffer size in conmon
- if config.LogSizeMax >= 0 && config.LogSizeMax < 8192 {
- return fmt.Errorf("log size max should be negative or >= 8192")
- }
- return nil
-}
-
-func mergeConfig(config *server.Config, ctx *cli.Context) error {
- // Don't parse the config if the user explicitly set it to "".
- if path := ctx.GlobalString("config"); path != "" {
- if err := config.UpdateFromFile(path); err != nil {
- if ctx.GlobalIsSet("config") || !os.IsNotExist(err) {
- return err
- }
-
- // We don't error out if --config wasn't explicitly set and the
- // default doesn't exist. But we will log a warning about it, so
- // the user doesn't miss it.
- logrus.Warnf("default configuration file does not exist: %s", server.CrioConfigPath)
- }
- }
-
- // Override options set with the CLI.
- if ctx.GlobalIsSet("conmon") {
- config.Conmon = ctx.GlobalString("conmon")
- }
- if ctx.GlobalIsSet("pause-command") {
- config.PauseCommand = ctx.GlobalString("pause-command")
- }
- if ctx.GlobalIsSet("pause-image") {
- config.PauseImage = ctx.GlobalString("pause-image")
- }
- if ctx.GlobalIsSet("signature-policy") {
- config.SignaturePolicyPath = ctx.GlobalString("signature-policy")
- }
- if ctx.GlobalIsSet("root") {
- config.Root = ctx.GlobalString("root")
- }
- if ctx.GlobalIsSet("runroot") {
- config.RunRoot = ctx.GlobalString("runroot")
- }
- if ctx.GlobalIsSet("storage-driver") {
- config.Storage = ctx.GlobalString("storage-driver")
- }
- if ctx.GlobalIsSet("storage-opt") {
- config.StorageOptions = ctx.GlobalStringSlice("storage-opt")
- }
- if ctx.GlobalIsSet("file-locking") {
- config.FileLocking = ctx.GlobalBool("file-locking")
- }
- if ctx.GlobalIsSet("insecure-registry") {
- config.InsecureRegistries = ctx.GlobalStringSlice("insecure-registry")
- }
- if ctx.GlobalIsSet("registry") {
- config.Registries = ctx.GlobalStringSlice("registry")
- }
- if ctx.GlobalIsSet("default-transport") {
- config.DefaultTransport = ctx.GlobalString("default-transport")
- }
- if ctx.GlobalIsSet("listen") {
- config.Listen = ctx.GlobalString("listen")
- }
- if ctx.GlobalIsSet("stream-address") {
- config.StreamAddress = ctx.GlobalString("stream-address")
- }
- if ctx.GlobalIsSet("stream-port") {
- config.StreamPort = ctx.GlobalString("stream-port")
- }
- if ctx.GlobalIsSet("runtime") {
- config.Runtime = ctx.GlobalString("runtime")
- }
- if ctx.GlobalIsSet("selinux") {
- config.SELinux = ctx.GlobalBool("selinux")
- }
- if ctx.GlobalIsSet("seccomp-profile") {
- config.SeccompProfile = ctx.GlobalString("seccomp-profile")
- }
- if ctx.GlobalIsSet("apparmor-profile") {
- config.ApparmorProfile = ctx.GlobalString("apparmor-profile")
- }
- if ctx.GlobalIsSet("cgroup-manager") {
- config.CgroupManager = ctx.GlobalString("cgroup-manager")
- }
- if ctx.GlobalIsSet("hooks-dir-path") {
- config.HooksDirPath = ctx.GlobalString("hooks-dir-path")
- }
- if ctx.GlobalIsSet("default-mounts") {
- config.DefaultMounts = ctx.GlobalStringSlice("default-mounts")
- }
- if ctx.GlobalIsSet("pids-limit") {
- config.PidsLimit = ctx.GlobalInt64("pids-limit")
- }
- if ctx.GlobalIsSet("log-size-max") {
- config.LogSizeMax = ctx.GlobalInt64("log-size-max")
- }
- if ctx.GlobalIsSet("cni-config-dir") {
- config.NetworkDir = ctx.GlobalString("cni-config-dir")
- }
- if ctx.GlobalIsSet("cni-plugin-dir") {
- config.PluginDir = ctx.GlobalString("cni-plugin-dir")
- }
- if ctx.GlobalIsSet("image-volumes") {
- config.ImageVolumes = libkpod.ImageVolumesType(ctx.GlobalString("image-volumes"))
- }
- return nil
-}
-
-func catchShutdown(gserver *grpc.Server, sserver *server.Server, hserver *http.Server, signalled *bool) {
- sig := make(chan os.Signal, 10)
- signal.Notify(sig, unix.SIGINT, unix.SIGTERM)
- go func() {
- for s := range sig {
- switch s {
- case unix.SIGINT:
- logrus.Debugf("Caught SIGINT")
- case unix.SIGTERM:
- logrus.Debugf("Caught SIGTERM")
- default:
- continue
- }
- *signalled = true
- gserver.GracefulStop()
- hserver.Shutdown(context.Background())
- // TODO(runcom): enable this after https://github.com/kubernetes/kubernetes/pull/51377
- //sserver.StopStreamServer()
- sserver.StopExitMonitor()
- if err := sserver.Shutdown(); err != nil {
- logrus.Warnf("error shutting down main service %v", err)
- }
- return
- }
- }()
-}
-
-func main() {
- if reexec.Init() {
- return
- }
- app := cli.NewApp()
-
- var v []string
- v = append(v, version.Version)
- if gitCommit != "" {
- v = append(v, fmt.Sprintf("commit: %s", gitCommit))
- }
- app.Name = "crio"
- app.Usage = "crio server"
- app.Version = strings.Join(v, "\n")
- app.Metadata = map[string]interface{}{
- "config": server.DefaultConfig(),
- }
-
- app.Flags = []cli.Flag{
- cli.StringFlag{
- Name: "config",
- Value: server.CrioConfigPath,
- Usage: "path to configuration file",
- },
- cli.StringFlag{
- Name: "conmon",
- Usage: "path to the conmon executable",
- },
- cli.StringFlag{
- Name: "listen",
- Usage: "path to crio socket",
- },
- cli.StringFlag{
- Name: "stream-address",
- Usage: "bind address for streaming socket",
- },
- cli.StringFlag{
- Name: "stream-port",
- Usage: "bind port for streaming socket (default: \"10010\")",
- },
- cli.StringFlag{
- Name: "log",
- Value: "",
- Usage: "set the log file path where internal debug information is written",
- },
- cli.StringFlag{
- Name: "log-format",
- Value: "text",
- Usage: "set the format used by logs ('text' (default), or 'json')",
- },
- cli.StringFlag{
- Name: "log-level",
- Usage: "log messages above specified level: debug, info (default), warn, error, fatal or panic",
- },
-
- cli.StringFlag{
- Name: "pause-command",
- Usage: "name of the pause command in the pause image",
- },
- cli.StringFlag{
- Name: "pause-image",
- Usage: "name of the pause image",
- },
- cli.StringFlag{
- Name: "signature-policy",
- Usage: "path to signature policy file",
- },
- cli.StringFlag{
- Name: "root",
- Usage: "crio root dir",
- },
- cli.StringFlag{
- Name: "runroot",
- Usage: "crio state dir",
- },
- cli.StringFlag{
- Name: "storage-driver",
- Usage: "storage driver",
- },
- cli.StringSliceFlag{
- Name: "storage-opt",
- Usage: "storage driver option",
- },
- cli.BoolFlag{
- Name: "file-locking",
- Usage: "enable or disable file-based locking",
- },
- cli.StringSliceFlag{
- Name: "insecure-registry",
- Usage: "whether to disable TLS verification for the given registry",
- },
- cli.StringSliceFlag{
- Name: "registry",
- Usage: "registry to be prepended when pulling unqualified images, can be specified multiple times",
- },
- cli.StringFlag{
- Name: "default-transport",
- Usage: "default transport",
- },
- cli.StringFlag{
- Name: "runtime",
- Usage: "OCI runtime path",
- },
- cli.StringFlag{
- Name: "seccomp-profile",
- Usage: "default seccomp profile path",
- },
- cli.StringFlag{
- Name: "apparmor-profile",
- Usage: "default apparmor profile name (default: \"crio-default\")",
- },
- cli.BoolFlag{
- Name: "selinux",
- Usage: "enable selinux support",
- },
- cli.StringFlag{
- Name: "cgroup-manager",
- Usage: "cgroup manager (cgroupfs or systemd)",
- },
- cli.Int64Flag{
- Name: "pids-limit",
- Value: libkpod.DefaultPidsLimit,
- Usage: "maximum number of processes allowed in a container",
- },
- cli.Int64Flag{
- Name: "log-size-max",
- Value: libkpod.DefaultLogSizeMax,
- Usage: "maximum log size in bytes for a container",
- },
- cli.StringFlag{
- Name: "cni-config-dir",
- Usage: "CNI configuration files directory",
- },
- cli.StringFlag{
- Name: "cni-plugin-dir",
- Usage: "CNI plugin binaries directory",
- },
- cli.StringFlag{
- Name: "image-volumes",
- Value: string(libkpod.ImageVolumesMkdir),
- Usage: "image volume handling ('mkdir', 'bind', or 'ignore')",
- },
- cli.StringFlag{
- Name: "hooks-dir-path",
- Usage: "set the OCI hooks directory path",
- Value: libkpod.DefaultHooksDirPath,
- Hidden: true,
- },
- cli.StringSliceFlag{
- Name: "default-mounts",
- Usage: "add one or more default mount paths in the form host:container",
- Hidden: true,
- },
- cli.BoolFlag{
- Name: "profile",
- Usage: "enable pprof remote profiler on localhost:6060",
- },
- cli.IntFlag{
- Name: "profile-port",
- Value: 6060,
- Usage: "port for the pprof profiler",
- },
- cli.BoolFlag{
- Name: "enable-metrics",
- Usage: "enable metrics endpoint for the servier on localhost:9090",
- },
- cli.IntFlag{
- Name: "metrics-port",
- Value: 9090,
- Usage: "port for the metrics endpoint",
- },
- }
-
- sort.Sort(cli.FlagsByName(app.Flags))
- sort.Sort(cli.FlagsByName(configCommand.Flags))
-
- app.Commands = []cli.Command{
- configCommand,
- }
-
- app.Before = func(c *cli.Context) error {
- // Load the configuration file.
- config := c.App.Metadata["config"].(*server.Config)
- if err := mergeConfig(config, c); err != nil {
- return err
- }
-
- if err := validateConfig(config); err != nil {
- return err
- }
-
- cf := &logrus.TextFormatter{
- TimestampFormat: "2006-01-02 15:04:05.000000000Z07:00",
- FullTimestamp: true,
- }
-
- logrus.SetFormatter(cf)
-
- if loglevel := c.GlobalString("log-level"); loglevel != "" {
- level, err := logrus.ParseLevel(loglevel)
- if err != nil {
- return err
- }
-
- logrus.SetLevel(level)
- }
-
- if path := c.GlobalString("log"); path != "" {
- f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_APPEND|os.O_SYNC, 0666)
- if err != nil {
- return err
- }
- logrus.SetOutput(f)
- }
-
- switch c.GlobalString("log-format") {
- case "text":
- // retain logrus's default.
- case "json":
- logrus.SetFormatter(new(logrus.JSONFormatter))
- default:
- return fmt.Errorf("unknown log-format %q", c.GlobalString("log-format"))
- }
-
- return nil
- }
-
- app.Action = func(c *cli.Context) error {
- if c.GlobalBool("profile") {
- profilePort := c.GlobalInt("profile-port")
- profileEndpoint := fmt.Sprintf("localhost:%v", profilePort)
- go func() {
- http.ListenAndServe(profileEndpoint, nil)
- }()
- }
-
- args := c.Args()
- if len(args) > 0 {
- for _, command := range app.Commands {
- if args[0] == command.Name {
- break
- }
- }
- return fmt.Errorf("command %q not supported", args[0])
- }
-
- config := c.App.Metadata["config"].(*server.Config)
-
- if !config.SELinux {
- selinux.SetDisabled()
- }
-
- if _, err := os.Stat(config.Runtime); os.IsNotExist(err) {
- // path to runtime does not exist
- return fmt.Errorf("invalid --runtime value %q", err)
- }
-
- // Remove the socket if it already exists
- if _, err := os.Stat(config.Listen); err == nil {
- if err := os.Remove(config.Listen); err != nil {
- logrus.Fatal(err)
- }
- }
- lis, err := net.Listen("unix", config.Listen)
- if err != nil {
- logrus.Fatalf("failed to listen: %v", err)
- }
-
- s := grpc.NewServer()
-
- service, err := server.New(config)
- if err != nil {
- logrus.Fatal(err)
- }
-
- if c.GlobalBool("enable-metrics") {
- metricsPort := c.GlobalInt("metrics-port")
- me, err := service.CreateMetricsEndpoint()
- if err != nil {
- logrus.Fatalf("Failed to create metrics endpoint: %v", err)
- }
- l, err := net.Listen("tcp", fmt.Sprintf(":%v", metricsPort))
- if err != nil {
- logrus.Fatalf("Failed to create listener for metrics: %v", err)
- }
- go func() {
- if err := http.Serve(l, me); err != nil {
- logrus.Fatalf("Failed to serve metrics endpoint: %v", err)
- }
- }()
- }
-
- runtime.RegisterRuntimeServiceServer(s, service)
- runtime.RegisterImageServiceServer(s, service)
-
- // after the daemon is done setting up we can notify systemd api
- notifySystem()
-
- go func() {
- service.StartExitMonitor()
- }()
-
- m := cmux.New(lis)
- grpcL := m.Match(cmux.HTTP2HeaderField("content-type", "application/grpc"))
- httpL := m.Match(cmux.HTTP1Fast())
-
- infoMux := service.GetInfoMux()
- srv := &http.Server{
- Handler: infoMux,
- ReadTimeout: 5 * time.Second,
- }
-
- graceful := false
- catchShutdown(s, service, srv, &graceful)
-
- go s.Serve(grpcL)
- go srv.Serve(httpL)
-
- serverCloseCh := make(chan struct{})
- go func() {
- defer close(serverCloseCh)
- if err := m.Serve(); err != nil {
- if graceful && strings.Contains(strings.ToLower(err.Error()), "use of closed network connection") {
- err = nil
- } else {
- logrus.Errorf("Failed to serve grpc grpc request: %v", err)
- }
- }
- }()
-
- // TODO(runcom): enable this after https://github.com/kubernetes/kubernetes/pull/51377
- //streamServerCloseCh := service.StreamingServerCloseChan()
- serverExitMonitorCh := service.ExitMonitorCloseChan()
- select {
- // TODO(runcom): enable this after https://github.com/kubernetes/kubernetes/pull/51377
- //case <-streamServerCloseCh:
- case <-serverExitMonitorCh:
- case <-serverCloseCh:
- }
-
- service.Shutdown()
-
- // TODO(runcom): enable this after https://github.com/kubernetes/kubernetes/pull/51377
- //<-streamServerCloseCh
- //logrus.Debug("closed stream server")
- <-serverExitMonitorCh
- logrus.Debug("closed exit monitor")
- <-serverCloseCh
- logrus.Debug("closed main server")
-
- return nil
- }
-
- if err := app.Run(os.Args); err != nil {
- logrus.Fatal(err)
- }
-}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-10-15 15:32:51 +0000