62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
package main
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import (
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"fmt"
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"os"
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"path/filepath"
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"github.com/Sirupsen/logrus"
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"github.com/opencontainers/runtime-spec/specs-go"
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"github.com/urfave/cli"
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)
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// fatal prints the error's details if it is a libcontainer specific error type
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// then exits the program with an exit status of 1.
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func fatal(err error) {
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// make sure the error is written to the logger
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logrus.Error(err)
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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// setupSpec performs initial setup based on the cli.Context for the container
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func setupSpec(context *cli.Context) (*specs.Spec, error) {
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bundle := context.String("bundle")
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if bundle != "" {
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if err := os.Chdir(bundle); err != nil {
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return nil, err
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}
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}
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spec, err := loadSpec(specConfig)
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if err != nil {
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return nil, err
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}
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notifySocket := os.Getenv("NOTIFY_SOCKET")
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if notifySocket != "" {
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setupSdNotify(spec, notifySocket)
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}
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if os.Geteuid() != 0 {
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return nil, fmt.Errorf("runc should be run as root")
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}
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return spec, nil
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}
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func revisePidFile(context *cli.Context) error {
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pidFile := context.String("pid-file")
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if pidFile == "" {
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return nil
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}
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// convert pid-file to an absolute path so we can write to the right
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// file after chdir to bundle
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pidFile, err := filepath.Abs(pidFile)
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if err != nil {
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return err
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}
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err = context.Set("pid-file", pidFile)
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if err != nil {
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return err
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}
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return nil
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}
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