quadlet: add InterfaceName option to network unit

I noticed this was missing, its a simple 1 to 1 mapping to
--interface-name.

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

docs/source/markdown/podman-systemd.unit.5.md

@@ -1393,6 +1393,7 @@ Valid options for `[Network]` are listed below:
 | Driver=bridge                       | --driver bridge                                                 |
 | Gateway=192.168.55.3                | --gateway 192.168.55.3                                          |
 | GlobalArgs=--log-level=debug        | --log-level=debug                                               |
+| InterfaceName=enp1                  | --interface-name enp1                                           |
 | Internal=true                       | --internal                                                      |
 | IPAMDriver=dhcp                     | --ipam-driver dhcp                                              |
 | IPRange=192.168.55.128/25           | --ip-range 192.168.55.128/25                                    |
@@ -1450,6 +1451,14 @@ escaped to allow inclusion of whitespace and other control characters.
 
 This key can be listed multiple times.
 
+### `InterfaceName=`
+
+This option maps the *network_interface* option in the network config, see **podman network inspect**.
+Depending on the driver, this can have different effects; for `bridge`, it uses the bridge interface name.
+For `macvlan` and `ipvlan`, it is the parent device on the host. It is the same as `--opt parent=...`.
+
+This is equivalent to the Podman `--interface-name` option.
+
 ### `Internal=` (defaults to `false`)
 
 Restrict external access of this network.

pkg/systemd/quadlet/quadlet.go

@@ -111,6 +111,7 @@ const (
 	KeyHostName              = "HostName"
 	KeyImage                 = "Image"
 	KeyImageTag              = "ImageTag"
+	KeyInterfaceName         = "InterfaceName"
 	KeyInternal              = "Internal"
 	KeyIP                    = "IP"
 	KeyIP6                   = "IP6"
@@ -372,6 +373,7 @@ var (
 				KeyIPAMDriver:           true,
 				KeyIPRange:              true,
 				KeyIPv6:                 true,
+				KeyInterfaceName:        true,
 				KeyInternal:             true,
 				KeyNetworkName:          true,
 				KeyNetworkDeleteOnStop:  true,
@@ -975,8 +977,9 @@ func ConvertNetwork(network *parser.UnitFile, name string, unitsInfoMap map[stri
 	lookupAndAddBoolean(network, NetworkGroup, boolKeys, podman)
 
 	stringKeys := map[string]string{
-		KeyDriver:     "--driver",
+		KeyDriver:        "--driver",
-		KeyIPAMDriver: "--ipam-driver",
+		KeyIPAMDriver:    "--ipam-driver",
+		KeyInterfaceName: "--interface-name",
 	}
 	lookupAndAddString(network, NetworkGroup, stringKeys, podman)
 

test/e2e/quadlet/interface-name.network

@@ -0,0 +1,5 @@
+## assert-podman-final-args systemd-interface-name
+## assert-podman-args "--interface-name" "enp1"
+
+[Network]
+InterfaceName=enp1

test/e2e/quadlet_test.go

@@ -1005,6 +1005,7 @@ BOGUS=foo
 		Entry("Network - Gateway", "gateway.network"),
 		Entry("Network - IPAM Driver", "ipam-driver.network"),
 		Entry("Network - IPv6", "ipv6.network"),
+		Entry("Network - InterfaceName network", "interface-name.network"),
 		Entry("Network - Internal network", "internal.network"),
 		Entry("Network - Label", "label.network"),
 		Entry("Network - Multiple Options", "options.multiple.network"),