Files
podman/utils/utils_supported.go
Giuseppe Scrivano b94a5e2410 utils: use the user session for systemd
when running as rootless, use the user session bus.  It is already
implemented in the pkg/cgroups so just re-use it.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
2019-09-12 08:35:26 +02:00

52 lines
1.2 KiB
Go

// +build linux darwin
package utils
import (
"github.com/containers/libpod/pkg/cgroups"
"github.com/containers/libpod/pkg/rootless"
systemdDbus "github.com/coreos/go-systemd/dbus"
"github.com/godbus/dbus"
)
// RunUnderSystemdScope adds the specified pid to a systemd scope
func RunUnderSystemdScope(pid int, slice string, unitName string) error {
var properties []systemdDbus.Property
var conn *systemdDbus.Conn
var err error
if rootless.IsRootless() {
conn, err = cgroups.GetUserConnection(rootless.GetRootlessUID())
if err != nil {
return err
}
} else {
conn, err = systemdDbus.New()
if err != nil {
return err
}
}
properties = append(properties, systemdDbus.PropSlice(slice))
properties = append(properties, newProp("PIDs", []uint32{uint32(pid)}))
properties = append(properties, newProp("Delegate", true))
properties = append(properties, newProp("DefaultDependencies", false))
ch := make(chan string)
_, err = conn.StartTransientUnit(unitName, "replace", properties, ch)
if err != nil {
return err
}
defer conn.Close()
// Block until job is started
<-ch
return nil
}
func newProp(name string, units interface{}) systemdDbus.Property {
return systemdDbus.Property{
Name: name,
Value: dbus.MakeVariant(units),
}
}