fix: Render v2 bridges correctly on network-manager with set-name (#5740

)

Similar to the recent sysconfig fix, ensure bridges render correctly
for configs that contain `set-name`.

Fixes GH-5717

cloudinit/net/network_manager.py

@@ -575,11 +575,13 @@ def render_network_state(
         # interfaces that have UUIDs that can be linked to from related
         # interfaces
         for iface in network_state.iter_interfaces():
-            self.connections[iface["name"]] = NMConnection(iface["name"])
+            conn_key = iface.get("config_id") or iface["name"]
+            self.connections[conn_key] = NMConnection(iface["name"])
 
         # Now render the actual interface configuration
         for iface in network_state.iter_interfaces():
-            conn = self.connections[iface["name"]]
+            conn_key = iface.get("config_id") or iface["name"]
+            conn = self.connections[conn_key]
             conn.render_interface(iface, network_state, self)
 
         # And finally write the files

tests/unittests/net/network_configs.py

@@ -4996,5 +4996,93 @@
                 """
             ),
         },
+        "expected_network_manager": {
+            "cloud-init-baremetal.nmconnection": textwrap.dedent(
+                """\
+                # Generated by cloud-init. Changes will be lost.
+
+                [connection]
+                id=cloud-init baremetal
+                uuid=e63eed9a-cd1c-55de-8d5e-1e80b756a482
+                autoconnect-priority=120
+                type=bridge
+                interface-name=baremetal
+
+                [user]
+                org.freedesktop.NetworkManager.origin=cloud-init
+
+                [bridge]
+
+                [ipv6]
+                method=manual
+                may-fail=false
+                address1=fc00:1:1::2/64
+
+                """
+            ),
+            "cloud-init-baremetalport.nmconnection": textwrap.dedent(
+                """\
+                # Generated by cloud-init. Changes will be lost.
+
+                [connection]
+                id=cloud-init baremetal0
+                uuid=8e326690-51d6-5157-ab84-e4e822b06503
+                autoconnect-priority=120
+                type=ethernet
+                slave-type=bridge
+                master=e63eed9a-cd1c-55de-8d5e-1e80b756a482
+
+                [user]
+                org.freedesktop.NetworkManager.origin=cloud-init
+
+                [ethernet]
+                mac-address=52:54:00:BD:8F:CB
+
+                """
+            ),
+            "cloud-init-provisioning.nmconnection": textwrap.dedent(
+                """\
+                # Generated by cloud-init. Changes will be lost.
+
+                [connection]
+                id=cloud-init provisioning
+                uuid=e5bd3f1a-cdcc-55d3-a6d8-88f1ba73bd0e
+                autoconnect-priority=120
+                type=bridge
+                interface-name=provisioning
+
+                [user]
+                org.freedesktop.NetworkManager.origin=cloud-init
+
+                [bridge]
+
+                [ipv6]
+                method=manual
+                may-fail=false
+                address1=fc00:1:2::2/64
+
+                """
+            ),
+            "cloud-init-provisioningport.nmconnection": textwrap.dedent(
+                """\
+                # Generated by cloud-init. Changes will be lost.
+
+                [connection]
+                id=cloud-init provisioning0
+                uuid=d79b7b70-e9df-596f-ace7-89537db45684
+                autoconnect-priority=120
+                type=ethernet
+                slave-type=bridge
+                master=e5bd3f1a-cdcc-55d3-a6d8-88f1ba73bd0e
+
+                [user]
+                org.freedesktop.NetworkManager.origin=cloud-init
+
+                [ethernet]
+                mac-address=52:54:00:25:AE:12
+
+                """
+            ),
+        },
     },
 }

tests/unittests/test_net.py

@@ -3062,6 +3062,7 @@ def test_ipv4_and_ipv6_static_config(self, yaml_file, config, caplog):
             ("v2-dns-no-if-ips", "yaml"),
             ("v2-dns-no-dhcp", "yaml"),
             ("v2-route-no-gateway", "yaml"),
+            ("v2-bridges-set-name", "yaml"),
             pytest.param(
                 "large_v2",
                 "yaml",