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Support --network=default as if it was private

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Docker defines an option of "default" which means to
use the default network.  We should support this with
the same code path as --network="".

This is important for compatibility with the Docker API.

Fixes: https://github.com/containers/podman/issues/8544

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This commit is contained in:
Daniel J Walsh
2020-12-02 08:28:30 -05:00
parent 7210b86d9e
commit ee418c8565
3 changed files with 30 additions and 11 deletions
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16
pkg/specgen/namespaces.go
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@ -258,24 +258,22 @@ func ParseNetworkNamespace(ns string) (Namespace, []string, error) {
var cniNetworks []string
// Net defaults to Slirp on rootless
switch {
case ns == "slirp4netns", strings.HasPrefix(ns, "slirp4netns:"):
case ns == string(Slirp), strings.HasPrefix(ns, string(Slirp)+":"):
toReturn.NSMode = Slirp
case ns == "pod":
case ns == string(FromPod):
toReturn.NSMode = FromPod
case ns == "":
case ns == "" || ns == string(Default) || ns == string(Private):
if rootless.IsRootless() {
toReturn.NSMode = Slirp
} else {
toReturn.NSMode = Bridge
}
case ns == "bridge":
case ns == string(Bridge):
toReturn.NSMode = Bridge
case ns == "none":
case ns == string(NoNetwork):
toReturn.NSMode = NoNetwork
case ns == "host":
case ns == string(Host):
toReturn.NSMode = Host
case ns == "private":
toReturn.NSMode = Private
case strings.HasPrefix(ns, "ns:"):
split := strings.SplitN(ns, ":", 2)
if len(split) != 2 {
@ -283,7 +281,7 @@ func ParseNetworkNamespace(ns string) (Namespace, []string, error) {
}
toReturn.NSMode = Path
toReturn.Value = split[1]
case strings.HasPrefix(ns, "container:"):
case strings.HasPrefix(ns, string(FromContainer)+":"):
split := strings.SplitN(ns, ":", 2)
if len(split) != 2 {
return toReturn, nil, errors.Errorf("must provide name or ID or a container when specifying container:")