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network: support ns: prefix to join existing namespace

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Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

Closes: #1145
Approved by: rhatdan
This commit is contained in:
Giuseppe Scrivano
2018-07-23 12:37:29 +02:00
committed by Atomic Bot
parent 6f65490e27
commit 41c7e43b4d
5 changed files with 23 additions and 5 deletions
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15
pkg/spec/parse.go
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@ -18,6 +18,21 @@ func (w *weightDevice) String() string {
return fmt.Sprintf("%s:%d", w.path, w.weight)
}
// IsNS returns if the specified string has a ns: prefix
func IsNS(s string) bool {
parts := strings.SplitN(s, ":", 2)
return len(parts) > 1 && parts[0] == "ns"
}
// NS is the path to the namespace to join.
func NS(s string) string {
parts := strings.SplitN(s, ":", 2)
if len(parts) > 1 {
return parts[1]
}
return ""
}
// validateweightDevice validates that the specified string has a valid device-weight format
// for blkio-weight-device flag
func validateweightDevice(val string) (*weightDevice, error) {