debian: get inventory data from netbox

Set standardized interface names (mgmt0… for L2 management interfaces
and lan0… for L3 data interfaces speaking BGP). ASN is stored as a
custom field in netbox but that might change.

roles/debian/tasks/main.yml

@@ -1,13 +1,4 @@
-- name: Set hostname
-  hostname:
-    name: '{{ inventory_hostname }}'
-
-- name: Set up management interface
-  template:
-    dest: /etc/network/interfaces
-    src: interfaces.j2
-    mode: 0644
-  notify: reboot
+- include_tasks: mgmt.yml
 
 - name: Set up loopback interface
   template:
@@ -23,32 +14,9 @@
     mode: 0644
   notify: reload interfaces
 
-- name: Install ifupdown2
-  package: name=ifupdown2
-  notify: reboot
-
-- name: Create override directory for ssh service
-  file:
-    path: /etc/systemd/system/ssh.service.d
-    state: directory
-
-- name: Run ssh in mgmt VRF
-  copy:
-    dest: /etc/systemd/system/ssh.service.d/override.conf
-    src: ssh.service-override.conf
-  notify: reboot
-
-# With PAM enabled, login shell would run in default VRF instead of mgmt.
-- name: Disable PAM for ssh
-  lineinfile:
-    path: /etc/ssh/sshd_config
-    regexp: '^UsePAM .*yes'
-    state: absent
-  notify: reboot
-
-# Reboot here if anything changed to ensure the new VRF is up and sshd
-# listens there.
-- meta: flush_handlers
+- name: Set hostname
+  hostname:
+    name: '{{ inventory_hostname }}'
 
 - name: Set up resolv.conf
   template:

roles/debian/tasks/mgmt.yml

@@ -0,0 +1,39 @@
+- name: Add rules to rename network interfaces
+  template:
+    dest: /etc/udev/rules.d/10-network.rules
+    src: 10-network.rules.j2
+    mode: 0644
+  notify: reboot
+
+- name: Set up management interface
+  template:
+    dest: /etc/network/interfaces
+    src: interfaces.j2
+    mode: 0644
+  notify: reboot
+
+- name: Install ifupdown2
+  package: name=ifupdown2
+  notify: reboot
+
+- name: Create override directory for ssh service
+  file:
+    path: /etc/systemd/system/ssh.service.d
+    state: directory
+
+- name: Set up ssh to run in mgmt VRF
+  copy:
+    dest: /etc/systemd/system/ssh.service.d/override.conf
+    src: ssh.service-override.conf
+  notify: reboot
+
+# With PAM enabled, login shell would run in default VRF instead of mgmt.
+- name: Disable PAM for ssh
+  lineinfile:
+    path: /etc/ssh/sshd_config
+    regexp: '^UsePAM .*yes'
+    state: absent
+  notify: reboot
+
+- meta: flush_handlers
+