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package main
import (
"fmt"
"log/syslog"
"os"
"path"
"github.com/containers/libpod/cmd/podmanV2/registry"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/pkg/domain/entities"
"github.com/containers/libpod/version"
"github.com/sirupsen/logrus"
logrusSyslog "github.com/sirupsen/logrus/hooks/syslog"
"github.com/spf13/cobra"
)
var (
rootCmd = &cobra.Command{
Use: path.Base(os.Args[0]),
Long: "Manage pods, containers and images",
SilenceUsage: true,
SilenceErrors: true,
TraverseChildren: true,
PersistentPreRunE: preRunE,
RunE: registry.SubCommandExists,
Version: version.Version,
}
logLevels = entities.NewStringSet("debug", "info", "warn", "error", "fatal", "panic")
logLevel = "error"
useSyslog bool
)
func init() {
// Override default --help information of `--version` global flag}
var dummyVersion bool
// TODO had to disable shorthand -v for version due to -v rm with volume
rootCmd.PersistentFlags().BoolVar(&dummyVersion, "version", false, "Version of Podman")
rootCmd.PersistentFlags().StringVarP(®istry.EngineOptions.Uri, "remote", "r", "", "URL to access Podman service")
rootCmd.PersistentFlags().StringSliceVar(®istry.EngineOptions.Identities, "identity", []string{}, "path to SSH identity file")
rootCmd.PersistentFlags().StringVar(&logLevel, "log-level", "error", fmt.Sprintf("Log messages above specified level (%s)", logLevels.String()))
rootCmd.PersistentFlags().BoolVar(&useSyslog, "syslog", false, "Output logging information to syslog as well as the console (default false)")
cobra.OnInitialize(
logging,
syslogHook,
)
}
func preRunE(cmd *cobra.Command, args []string) error {
cmd.SetHelpTemplate(registry.HelpTemplate())
cmd.SetUsageTemplate(registry.UsageTemplate())
return nil
}
func logging() {
if !logLevels.Contains(logLevel) {
fmt.Fprintf(os.Stderr, "Log Level \"%s\" is not supported, choose from: %s\n", logLevel, logLevels.String())
os.Exit(1)
}
level, err := logrus.ParseLevel(logLevel)
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
}
logrus.SetLevel(level)
if logrus.IsLevelEnabled(logrus.InfoLevel) {
logrus.Infof("%s filtering at log level %s", os.Args[0], logrus.GetLevel())
}
}
func syslogHook() {
if useSyslog {
hook, err := logrusSyslog.NewSyslogHook("", "", syslog.LOG_INFO, "")
if err != nil {
logrus.WithError(err).Error("Failed to initialize syslog hook")
}
if err == nil {
logrus.AddHook(hook)
}
}
}
func Execute() {
o := registry.NewOptions(rootCmd.Context(), ®istry.EngineOptions)
if err := rootCmd.ExecuteContext(o); err != nil {
fmt.Fprintln(os.Stderr, "Error:", err.Error())
} else if registry.GetExitCode() == define.ExecErrorCodeGeneric {
// The exitCode modified from define.ExecErrorCodeGeneric,
// indicates an application
// running inside of a container failed, as opposed to the
// podman command failed. Must exit with that exit code
// otherwise command exited correctly.
registry.SetExitCode(0)
}
os.Exit(registry.GetExitCode())
}
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