test(packer): add initial cloud-init files.

tests/packer/init/ubuntu-server.user-data.yml

@@ -0,0 +1,45 @@
+#cloud-config
+
+hostname: ${hostname}
+
+ssh_pwauth: true
+users:
+  - name: ${username}
+    plain_text_passwd: ${password}
+    shell: /bin/bash
+    ssh_authorized_keys:
+      - ${ssh_key}
+    lock_passwd: false
+    sudo: ALL=(ALL) NOPASSWD:ALL
+
+package_update: true
+package_upgrade: true
+package_reboot_if_required: false
+packages:
+  - apparmor-profiles
+  - build-essential 
+  - config-package-dev
+  - debhelper
+  - devscripts
+  - golang-go
+  - htop
+  - lsb-release
+  - qemu-guest-agent
+  - rsync
+  - vim
+
+write_files:
+
+  # Network configuration
+  - path: /etc/systemd/network/20-wired.network
+    owner: 'root:root'
+    permissions: '0644'
+    content: |
+      [Match]
+      Name=en*
+
+      [Network]
+      DHCP=yes
+
+      [DHCPv4]
+      RouteMetric=10