Add a playbook to install prerequisites for fixing a broken Netplan c…

…onfiguration

See these issues for more information:
- #300
- canonical/cloud-init#4764

src/fix-netplan-configuration.yml

@@ -0,0 +1,18 @@
+---
+# Install the prerequisites for the user script that fixes the Netplan
+# configuration generated by cloud-init from the instance metadata.
+#
+# See these issues for more details:
+# - cisagov/skeleton-packer#300
+# - canonical/cloud-init#4764
+- hosts: all
+  name: >-
+    Install prerequisites for the script that fixes the Netplan
+    configuration generated by cloud-init from the instance metadata
+  become: true
+  become_method: ansible.builtin.sudo
+  tasks:
+    - name: Install python3-pyyaml
+      ansible.builtin.package:
+        name:
+          - python3-yaml

src/playbook.yml

@@ -2,6 +2,9 @@
 - name: Import base image playbook
   ansible.builtin.import_playbook: base.yml
 
+- name: Import playbook to fix Netplan configuration
+  ansible.builtin.import_playbook: fix-netplan-configuration.yml
+
 - name: Import AWS playbook
   ansible.builtin.import_playbook: aws.yml