Replace usage of networkd template with role

For consistency reasons instead of placing a template for
systemd-networkd we better use systemd_networkd role that is present
for a while.

Change-Id: I1e9deaa2892a8fa7eb171acaf75441d7efeac297

handlers/main.yml

@@ -57,22 +57,6 @@
   changed_when: false
   listen: Lxc container restart
 
-- name: Flush addresses
-  command: "ip addr flush {{ item.value.interface }}"
-  with_dict: "{{ lxc_container_networks_combined }}"
-  failed_when: false
-  when:
-    - item.value.interface is defined
-  listen: Restart networkd
-
-- name: Restart systemd-networkd
-  systemd:
-    name: systemd-networkd
-    state: restarted
-    enabled: true
-    daemon_reload: true
-  listen: Restart networkd
-
 - name: Enable resolved
   systemd:
     name: systemd-resolved

tasks/lxc_container_config.yml

@@ -210,7 +210,7 @@
   changed_when: wiring_script.rc == 3
   delegate_to: "{{ physical_host }}"
 
-- include_tasks: "lxc_container_network_new.yml"
+- include_tasks: "lxc_container_network.yml"
 # VETH AND CONNECTIVITY SETTINGS
 
 

tasks/lxc_container_network.yml

@@ -13,23 +13,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- name: Create networkd directory
-  file:
-    path: "/etc/systemd/network"
-    state: directory
 
-- name: Drop container network file (interfaces)
-  template:
-    src: "container_network.network.j2"
-    dest: "/etc/systemd/network/{{ item.value.interface }}.network"
-    owner: "root"
-    group: "root"
-    mode: "0644"
-  with_dict: "{{ lxc_container_networks_combined }}"
-  notify:
-    - Enable dbus
-    - Enable resolved
-    - Restart networkd
+- name: Run the systemd-networkd role
+  import_role:
+    name: systemd_networkd
+  vars:
+    systemd_run_networkd: true
+    systemd_networkd_distro_packages: []
+    systemd_networks: "{{ _lxc_container_systemd_networks }}"
 
 - name: Create resolved link
   file:

templates/container_network.network.j2

@@ -1,46 +0,0 @@
-[Match]
-Name={{ item.value.interface }}
-
-{% if item.value.address is defined %}
-[Address]
-{% set addr_cidr = (item.value.address | string + '/' + item.value.netmask | string) | ansible.utils.ipaddr('prefix') %}
-Address={{ item.value.address }}/{{ addr_cidr }}
-{% else %}
-[DHCP]
-{% if item.value.dhcp_use_dns is defined %}
-UseDNS={{ item.value.dhcp_use_dns | bool | lower }}
-{% else %}
-UseDNS={{ (lxc_container_enable_resolved | bool) | ternary('yes', 'no') }}
-{% endif %}
-UseNTP=yes
-RouteMetric=20
-{% if hostvars[inventory_hostname]['gateway'] is defined
-   or item.value.dhcp_use_routes is defined %}
-UseRoutes={{ item.value.dhcp_use_routes | default(false) | bool | lower }}
-{% endif %}
-
-{% endif %}
-
-{% for route in item.value.static_routes | default([]) %}
-[Route]
-Destination={{ route['cidr'] }}
-Gateway={{ route['gateway'] }}
-Metric={{ 20 + loop.index }}
-
-{% endfor %}
-
-[Network]
-{% if item.value.address is defined %}
-{%   set addr_cidr = (item.value.address | string + '/' + item.value.netmask | string) | ansible.utils.ipaddr('prefix') %}
-Address={{ item.value.address }}/{{ addr_cidr }}
-{% else %}
-DHCP=yes
-{% endif %}
-{% if item.value.gateway is defined %}
-Gateway={{ item.value.gateway }}
-{% endif %}
-
-[Link]
-{% if item.value.mtu is defined %}
-MTUBytes={{ item.value.mtu }}
-{% endif %}

vars/main.yml

@@ -33,3 +33,20 @@ lxc_container_default_config_list:
 lxc_container_networks_combined: "{{ container_networks | default({}) | combine(container_extra_networks | default({})) | combine(lxc_container_networks) }}"
 sysctl_path: "/sbin"
 _lxc_container_bind_mounts: []
+
+_lxc_container_systemd_networks: |
+  {% set systemd_networks = [] %}
+  {% for network in lxc_container_networks_combined.values() %}
+  {% set _ = systemd_networks.append({
+    'filename': network.interface,
+    'interface': network.interface,
+    'address': network.address | default('dhcp'),
+    'netmask': network.netmask | default(),
+    'gateway': network.gateway | default(),
+    'mtu': network.mtu | default(),
+    'static_routes': network.static_routes | default([]),
+    'usedns': ('dhcp_use_dns' in network) | ternary(network.dhcp_use_dns, lxc_container_enable_resolved | bool),
+    'config_overrides': ('dhcp_use_routes' in network) | ternary({'DHCP': network.dhcp_use_routes}, {})
+  }) %}
+  {% endfor %}
+  {{ systemd_networks }}