diff options
Diffstat (limited to 'pkg/specgenutil')
| -rw-r--r-- | pkg/specgenutil/volumes.go | 63 |
1 files changed, 60 insertions, 3 deletions
diff --git a/pkg/specgenutil/volumes.go b/pkg/specgenutil/volumes.go index 0ed08198f..3ce96164f 100644 --- a/pkg/specgenutil/volumes.go +++ b/pkg/specgenutil/volumes.go @@ -243,7 +243,7 @@ func getBindMount(args []string) (spec.Mount, error) { Type: define.TypeBind, } - var setSource, setDest, setRORW, setSuid, setDev, setExec, setRelabel bool + var setSource, setDest, setRORW, setSuid, setDev, setExec, setRelabel, setOwnership bool for _, val := range args { kv := strings.SplitN(val, "=", 2) @@ -343,6 +343,18 @@ func getBindMount(args []string) (spec.Mount, error) { default: return newMount, errors.Wrapf(util.ErrBadMntOption, "%s mount option must be 'private' or 'shared'", kv[0]) } + case "U", "chown": + if setOwnership { + return newMount, errors.Wrapf(optionArgError, "cannot pass 'U' or 'chown' option more than once") + } + ok, err := validChownFlag(val) + if err != nil { + return newMount, err + } + if ok { + newMount.Options = append(newMount.Options, "U") + } + setOwnership = true case "consistency": // Often used on MACs and mistakenly on Linux platforms. // Since Docker ignores this option so shall we. @@ -375,7 +387,7 @@ func getTmpfsMount(args []string) (spec.Mount, error) { Source: define.TypeTmpfs, } - var setDest, setRORW, setSuid, setDev, setExec, setTmpcopyup bool + var setDest, setRORW, setSuid, setDev, setExec, setTmpcopyup, setOwnership bool for _, val := range args { kv := strings.SplitN(val, "=", 2) @@ -431,6 +443,18 @@ func getTmpfsMount(args []string) (spec.Mount, error) { } newMount.Destination = filepath.Clean(kv[1]) setDest = true + case "U", "chown": + if setOwnership { + return newMount, errors.Wrapf(optionArgError, "cannot pass 'U' or 'chown' option more than once") + } + ok, err := validChownFlag(val) + if err != nil { + return newMount, err + } + if ok { + newMount.Options = append(newMount.Options, "U") + } + setOwnership = true case "consistency": // Often used on MACs and mistakenly on Linux platforms. // Since Docker ignores this option so shall we. @@ -486,7 +510,7 @@ func getDevptsMount(args []string) (spec.Mount, error) { func getNamedVolume(args []string) (*specgen.NamedVolume, error) { newVolume := new(specgen.NamedVolume) - var setSource, setDest, setRORW, setSuid, setDev, setExec bool + var setSource, setDest, setRORW, setSuid, setDev, setExec, setOwnership bool for _, val := range args { kv := strings.SplitN(val, "=", 2) @@ -532,6 +556,18 @@ func getNamedVolume(args []string) (*specgen.NamedVolume, error) { } newVolume.Dest = filepath.Clean(kv[1]) setDest = true + case "U", "chown": + if setOwnership { + return newVolume, errors.Wrapf(optionArgError, "cannot pass 'U' or 'chown' option more than once") + } + ok, err := validChownFlag(val) + if err != nil { + return newVolume, err + } + if ok { + newVolume.Options = append(newVolume.Options, "U") + } + setOwnership = true case "consistency": // Often used on MACs and mistakenly on Linux platforms. // Since Docker ignores this option so shall we. @@ -628,3 +664,24 @@ func getTmpfsMounts(tmpfsFlag []string) (map[string]spec.Mount, error) { } return m, nil } + +// validChownFlag ensures that the U or chown flag is correctly used +func validChownFlag(flag string) (bool, error) { + kv := strings.SplitN(flag, "=", 2) + switch len(kv) { + case 1: + case 2: + // U=[true|false] + switch strings.ToLower(kv[1]) { + case "true": + case "false": + return false, nil + default: + return false, errors.Wrapf(optionArgError, "'U' or 'chown' must be set to true or false, instead received %q", kv[1]) + } + default: + return false, errors.Wrapf(optionArgError, "badly formatted option %q", flag) + } + + return true, nil +} |