tests: improve tests image content.

tests/packer/init/archlinux-gnome.user-data.yml

@@ -59,8 +59,6 @@ runcmd:
   # Regenerate grub.cfg
   - [ grub-mkconfig, -o, /boot/grub/grub.cfg ]
 
-  # Enable firewall
-
   # Enable core services
   - [ systemctl, enable, apparmor ]
   - [ systemctl, enable, auditd ]

tests/packer/init/archlinux-kde.user-data.yml

@@ -61,8 +61,6 @@ runcmd:
   # Regenerate grub.cfg
   - [ grub-mkconfig, -o, /boot/grub/grub.cfg ]
 
-  # Enable firewall
-
   # Enable core services
   - [ systemctl, enable, apparmor ]
   - [ systemctl, enable, auditd ]

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

@@ -43,30 +43,37 @@ snap:
 
 runcmd:
 
-  # Let NetworkManager handle network
-  - rm /etc/netplan/*
-  - >-
-    printf "network:\n  version: 2\n  renderer: NetworkManager" > /etc/netplan/01-network-manager.yaml
-
   # Remove default filesystem and related tools not used with the suggested
   # storage layout. These may yet be required if different partitioning schemes
   # are used.
-  - apt-get -y remove btrfs-progs cryptsetup* lvm2 xfsprogs
+  - apt-get -y purge btrfs-progs cryptsetup* lvm2 xfsprogs
 
   # Remove other packages present by default in Ubuntu Server but not
   # normally present in Ubuntu Desktop.
   - >-
-    apt-get -y remove
-      ubuntu-server ubuntu-server-minimal
+    apt-get -y purge
+      ubuntu-server ubuntu-server-minimal netplan.io cloud-init
       binutils byobu curl dmeventd finalrd gawk
       kpartx mdadm ncurses-term needrestart open-iscsi
       sg3-utils ssh-import-id sssd thin-provisioning-tools tmux
       sosreport screen open-vm-tools motd-news-config lxd-agent-loader
       landscape-common fonts-ubuntu-console ethtool
 
-  # Keep cloud-init, as it performs some of the installation on first boot.
-  - apt-get -y install cloud-init
-
   # Finally, remove things only installed as dependencies of other things
   # we have already removed.
   - apt-get -y autoremove
+
+write_files:
+
+  - path: /etc/systemd/network/20-wired.network
+    owner: 'root:root'
+    permissions: '0644'
+    content: |
+      [Match]
+      Name=en*
+
+      [Network]
+      DHCP=yes
+
+      [DHCPv4]
+      RouteMetric=10

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

@@ -20,6 +20,7 @@ package_upgrade: true
 package_reboot_if_required: false
 packages:
   - apparmor-profiles
+  - auditd
   - build-essential
   - config-package-dev
   - debhelper