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Add config generation for simple user namespace testing. #379

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vmarmol merged 1 commit into from
Feb 14, 2015
Merged

Add config generation for simple user namespace testing. #379

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17 changes: 17 additions & 0 deletions nsinit/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import (
"bytes"
"encoding/json"
"io"
"math"
"os"
"path/filepath"
"syscall"
Expand All @@ -27,6 +28,7 @@ var createFlags = []cli.Flag{
cli.StringFlag{Name: "apparmor-profile", Usage: "set the apparmor profile"},
cli.StringFlag{Name: "process-label", Usage: "set the process label"},
cli.StringFlag{Name: "mount-label", Usage: "set the mount label"},
cli.IntFlag{Name: "userns-root-uid", Usage: "set the user namespace root uid"},
}

var configCommand = cli.Command{
Expand Down Expand Up @@ -70,6 +72,21 @@ func modify(config *configs.Config, context *cli.Context) {
config.AppArmorProfile = context.String("apparmor-profile")
config.ProcessLabel = context.String("process-label")
config.MountLabel = context.String("mount-label")

userns_uid := context.Int("userns-root-uid")
if userns_uid != 0 {
config.Namespaces = append(config.Namespaces, configs.Namespace{Type: configs.NEWUSER})
config.UidMappings = []configs.IDMap{
{ContainerID: 0, HostID: userns_uid, Size: 1},
{ContainerID: 1, HostID: 1, Size: userns_uid - 1},
{ContainerID: userns_uid + 1, HostID: userns_uid + 1, Size: math.MaxInt32 - userns_uid},
}
config.GidMappings = []configs.IDMap{
{ContainerID: 0, HostID: userns_uid, Size: 1},
{ContainerID: 1, HostID: 1, Size: userns_uid - 1},
{ContainerID: userns_uid + 1, HostID: userns_uid + 1, Size: math.MaxInt32 - userns_uid},
}
}
}

func getTemplate() *configs.Config {
Expand Down