support advanced network configuration via cli

Rework the --network parse logic to support multiple networks with
specific network configuration settings.
--network can now be set multiple times. For bridge network mode the
following options have been added:
  - **alias=name**: Add network-scoped alias for the container.
  - **ip=IPv4**: Specify a static ipv4 address for this container.
  - **ip=IPv6**: Specify a static ipv6 address for this container.
  - **mac=MAC**: Specify a static mac address address for this container.
  - **interface_name**: Specify a name for the created network interface inside the container.

So now you can set --network bridge:ip=10.88.0.10,mac=44:33:22:11:00:99
for the default bridge network as well as for network names.
This is better than using --ip because we can set the ip per network
without any confusion which network the ip address should be assigned
to.
The --ip, --mac-address and --network-alias options are still supported
but --ip or --mac-address can only be set when only one network is set.
This limitation already existed previously.

The ability to specify a custom network interface name is new
Fixes #11534

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/cmd/podman/pods/create.go b/cmd/podman/pods/create.go
index 7399dd029..f844812c2 100644
--- a/cmd/podman/pods/create.go
+++ b/cmd/podman/pods/create.go
@@ -116,7 +116,7 @@ func create(cmd *cobra.Command, args []string) error {
 			return fmt.Errorf("cannot specify no-hosts without an infra container")
 		}
 		flags := cmd.Flags()
-		createOptions.Net, err = common.NetFlagsToNetOptions(nil, *flags, createOptions.Infra)
+		createOptions.Net, err = common.NetFlagsToNetOptions(nil, *flags)
 		if err != nil {
 			return err
 		}
@@ -133,7 +133,7 @@ func create(cmd *cobra.Command, args []string) error {
 	} else {
 		// reassign certain options for lbpod api, these need to be populated in spec
 		flags := cmd.Flags()
-		infraOptions.Net, err = common.NetFlagsToNetOptions(nil, *flags, createOptions.Infra)
+		infraOptions.Net, err = common.NetFlagsToNetOptions(nil, *flags)
 		if err != nil {
 			return err
 		}