netplan: Correctly render macaddress on a bonds and bridges when provided.

When converting network config v1 to netplan, we were not correctly
rendering the 'macaddress' key on a bond.  Not that the difference
in spelling between v1 'mac_address' and v2 'macaddress' is intentional.
Also fixed here is rendering of the macaddress for bridges.

LP: #1784699

2 files changed, 13 insertions, 2 deletions

diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py
index bd20a361..80be2429 100644
--- a/cloudinit/net/eni.py
+++ b/cloudinit/net/eni.py
@@ -247,8 +247,15 @@ def _parse_deb_config_data(ifaces, contents, src_dir, src_path):
                 ifaces[currif]['bridge']['ports'] = []
                 for iface in split[1:]:
                     ifaces[currif]['bridge']['ports'].append(iface)
-            elif option == "bridge_hw" and split[1].lower() == "mac":
-                ifaces[currif]['bridge']['mac'] = split[2]
+            elif option == "bridge_hw":
+                # doc is confusing and thus some may put literal 'MAC'
+                #    bridge_hw MAC <address>
+                # but correct is:
+                #    bridge_hw <address>
+                if split[1].lower() == "mac":
+                    ifaces[currif]['bridge']['mac'] = split[2]
+                else:
+                    ifaces[currif]['bridge']['mac'] = split[1]
             elif option == "bridge_pathcost":
                 if 'pathcost' not in ifaces[currif]['bridge']:
                     ifaces[currif]['bridge']['pathcost'] = {}
diff --git a/cloudinit/net/netplan.py b/cloudinit/net/netplan.py
index 40143634..6352e78c 100644
--- a/cloudinit/net/netplan.py
+++ b/cloudinit/net/netplan.py
@@ -291,6 +291,8 @@ class Renderer(renderer.Renderer):
 
                 if len(bond_config) > 0:
                     bond.update({'parameters': bond_config})
+                if ifcfg.get('mac_address'):
+                    bond['macaddress'] = ifcfg.get('mac_address').lower()
                 slave_interfaces = ifcfg.get('bond-slaves')
                 if slave_interfaces == 'none':
                     _extract_bond_slaves_by_name(interfaces, bond, ifname)
@@ -327,6 +329,8 @@ class Renderer(renderer.Renderer):
 
                 if len(br_config) > 0:
                     bridge.update({'parameters': br_config})
+                if ifcfg.get('mac_address'):
+                    bridge['macaddress'] = ifcfg.get('mac_address').lower()
                 _extract_addresses(ifcfg, bridge, ifname)
                 bridges.update({ifname: bridge})