infra: remove dead code
@@ -294,57 +294,6 @@ func ParseIDMapping(mode namespaces.UsernsMode, uidMapSlice, gidMapSlice []strin
options.AutoUserNsOpts = *opts
return &options, nil
}
- if mode.IsKeepID() {
- if len(uidMapSlice) > 0 || len(gidMapSlice) > 0 {
- return nil, errors.New("cannot specify custom mappings with --userns=keep-id")
- }
- if len(subUIDMap) > 0 || len(subGIDMap) > 0 {
- return nil, errors.New("cannot specify subuidmap or subgidmap with --userns=keep-id")
- }
- if !rootless.IsRootless() {
- return nil, errors.New("keep-id is only supported in rootless mode")
- }
- min := func(a, b int) int {
- if a < b {
- return a
- }
- return b
- }
-
- uid := rootless.GetRootlessUID()
- gid := rootless.GetRootlessGID()
-
- uids, gids, err := rootless.GetConfiguredMappings()
- if err != nil {
- return nil, fmt.Errorf("cannot read mappings: %w", err)
- }
- maxUID, maxGID := 0, 0
- for _, u := range uids {
- maxUID += u.Size
- }
- for _, g := range gids {
- maxGID += g.Size
- }
-
- options.UIDMap, options.GIDMap = nil, nil
-
- options.UIDMap = append(options.UIDMap, idtools.IDMap{ContainerID: 0, HostID: 1, Size: min(uid, maxUID)})
- options.UIDMap = append(options.UIDMap, idtools.IDMap{ContainerID: uid, HostID: 0, Size: 1})
- if maxUID > uid {
- options.UIDMap = append(options.UIDMap, idtools.IDMap{ContainerID: uid + 1, HostID: uid + 1, Size: maxUID - uid})
- }
-
- options.GIDMap = append(options.GIDMap, idtools.IDMap{ContainerID: 0, HostID: 1, Size: min(gid, maxGID)})
- options.GIDMap = append(options.GIDMap, idtools.IDMap{ContainerID: gid, HostID: 0, Size: 1})
- if maxGID > gid {
- options.GIDMap = append(options.GIDMap, idtools.IDMap{ContainerID: gid + 1, HostID: gid + 1, Size: maxGID - gid})
- }
-
- options.HostUIDMapping = false
- options.HostGIDMapping = false
- // Simply ignore the setting and do not set up an inner namespace for root as it is a no-op
- return &options, nil
- }
if subGIDMap == "" && subUIDMap != "" {
subGIDMap = subUIDMap
