57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
// +build linux
|
|
|
|
package libcontainer
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
|
|
"github.com/opencontainers/runc/libcontainer/apparmor"
|
|
"github.com/opencontainers/runc/libcontainer/keys"
|
|
"github.com/opencontainers/runc/libcontainer/label"
|
|
"github.com/opencontainers/runc/libcontainer/seccomp"
|
|
"github.com/opencontainers/runc/libcontainer/system"
|
|
)
|
|
|
|
// linuxSetnsInit performs the container's initialization for running a new process
|
|
// inside an existing container.
|
|
type linuxSetnsInit struct {
|
|
config *initConfig
|
|
}
|
|
|
|
func (l *linuxSetnsInit) getSessionRingName() string {
|
|
return fmt.Sprintf("_ses.%s", l.config.ContainerId)
|
|
}
|
|
|
|
func (l *linuxSetnsInit) Init() error {
|
|
// do not inherit the parent's session keyring
|
|
if _, err := keyctl.JoinSessionKeyring(l.getSessionRingName()); err != nil {
|
|
return err
|
|
}
|
|
if err := setupRlimits(l.config.Rlimits); err != nil {
|
|
return err
|
|
}
|
|
if l.config.NoNewPrivileges {
|
|
if err := system.Prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if l.config.Config.Seccomp != nil {
|
|
if err := seccomp.InitSeccomp(l.config.Config.Seccomp); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if err := finalizeNamespace(l.config); err != nil {
|
|
return err
|
|
}
|
|
if err := apparmor.ApplyProfile(l.config.AppArmorProfile); err != nil {
|
|
return err
|
|
}
|
|
if l.config.ProcessLabel != "" {
|
|
if err := label.SetProcessLabel(l.config.ProcessLabel); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return system.Execv(l.config.Args[0], l.config.Args[0:], os.Environ())
|
|
}
|