network create: add support for ipam-driver none

Add a new flag to set the ipam-driver. Also adds a new ipam driver none
mode which only creates interfaces but does not assign addresses.

Fixes #13521

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

2 files changed, 17 insertions, 2 deletions

diff --git a/cmd/podman/common/completion.go b/cmd/podman/common/completion.go
index 9ebdcda2b..1c0065006 100644
--- a/cmd/podman/common/completion.go
+++ b/cmd/podman/common/completion.go
@@ -1115,6 +1115,13 @@ func AutocompleteNetworkDriver(cmd *cobra.Command, args []string, toComplete str
 	return drivers, cobra.ShellCompDirectiveNoFileComp
 }
 
+// AutocompleteNetworkIPAMDriver - Autocomplete network ipam driver option.
+// -> "bridge", "macvlan"
+func AutocompleteNetworkIPAMDriver(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+	drivers := []string{types.HostLocalIPAMDriver, types.DHCPIPAMDriver, types.NoneIPAMDriver}
+	return drivers, cobra.ShellCompDirectiveNoFileComp
+}
+
 // AutocompletePodShareNamespace - Autocomplete pod create --share flag option.
 // -> "ipc", "net", "pid", "user", "uts", "cgroup", "none"
 func AutocompletePodShareNamespace(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
diff --git a/cmd/podman/networks/create.go b/cmd/podman/networks/create.go
index 8cf9bcada..84c58d4dc 100644
--- a/cmd/podman/networks/create.go
+++ b/cmd/podman/networks/create.go
@@ -33,6 +33,8 @@ var (
 	networkCreateOptions entities.NetworkCreateOptions
 	labels               []string
 	opts                 []string
+	ipamDriverFlagName   = "ipam-driver"
+	ipamDriver           string
 )
 
 func networkCreateFlags(cmd *cobra.Command) {
@@ -66,8 +68,8 @@ func networkCreateFlags(cmd *cobra.Command) {
 	flags.StringArrayVar(&labels, labelFlagName, nil, "set metadata on a network")
 	_ = cmd.RegisterFlagCompletionFunc(labelFlagName, completion.AutocompleteNone)
 
-	// TODO not supported yet
-	// flags.StringVar(&networkCreateOptions.IPamDriver, "ipam-driver", "",  "IP Address Management Driver")
+	flags.StringVar(&ipamDriver, ipamDriverFlagName, "", "IP Address Management Driver")
+	_ = cmd.RegisterFlagCompletionFunc(ipamDriverFlagName, common.AutocompleteNetworkIPAMDriver)
 
 	flags.BoolVar(&networkCreateOptions.IPv6, "ipv6", false, "enable IPv6 networking")
 
@@ -112,6 +114,12 @@ func networkCreate(cmd *cobra.Command, args []string) error {
 		Internal:    networkCreateOptions.Internal,
 	}
 
+	if cmd.Flags().Changed(ipamDriverFlagName) {
+		network.IPAMOptions = map[string]string{
+			types.Driver: ipamDriver,
+		}
+	}
+
 	// old --macvlan option
 	if networkCreateOptions.MacVLAN != "" {
 		logrus.Warn("The --macvlan option is deprecated, use `--driver macvlan --opt parent=<device>` instead")