chore: update cloudinit configs

* make sure ntp is enabled
* set timezone
* disable makecache timer
* write dnf.conf
* noatime on root fs
* fix package installation and upgrades

vms/cloudinit.host-attacker.cfg

@@ -4,6 +4,26 @@
 runcmd:
   - cat /etc/resolv.conf
   - uname -r
+  - timedatectl set-ntp 1
+  - timedatectl set-timezone Europe/Bratislava
+  - systemctl disable --now dnf-makecache.timer
+  - dnf config-manager --set-enabled updates updates-testing
+  - dnf upgrade --refresh -y
+  - dnf distro-sync -y
+  - dnf clean all
+  - sed -i "s/ext4 * defaults *1 1/ext4 noatime 0 0/" /etc/fstab
+
+write_files:
+  - content: |
+      [main]
+      gpg_check=1
+      installonly_limit=2
+      clean_requirements_on_remove=True
+      fastestmirror=True
+      max_parallel_downloads=7
+    path: /etc/dnf/dnf.conf
+    owner: root:root
+    permissions: '0644'
 
 ssh_pwauth: true
 chpasswd:
@@ -44,6 +64,7 @@ power_state:
   delay: "+1"
   mode: reboot
   condition: true
+  timeout: 120  # seconds
 
 packages:
   - vim
@@ -54,12 +75,15 @@ packages:
   - kernel-devel
   - kernel-headers
   - nmap
-  - python39 # for ansible
-  - "@Security Lab"
+  # use python3 instead of python39 or similar; python3 is certain to point to
+  # the latest python version available in the repositories (apart from
+  # python3-devel perhaps)
+  - python3  # for ansible
+  - "@security-lab"
   - sudo
   - tcpdump
   - tcpflow
   - tcptrack
 
-package_upgrade: true
+package_upgrade: false
 package_reboot_if_required: true

vms/cloudinit.host-defender.cfg

@@ -4,6 +4,26 @@
 runcmd:
   - cat /etc/resolv.conf
   - uname -r
+  - timedatectl set-ntp 1
+  - timedatectl set-timezone Europe/Bratislava
+  - systemctl disable --now dnf-makecache.timer
+  - dnf config-manager --set-enabled updates updates-testing
+  - dnf upgrade --refresh -y
+  - dnf distro-sync -y
+  - dnf clean all
+  - sed -i "s/ext4 * defaults *1 1/ext4 noatime 0 0/" /etc/fstab
+
+write_files:
+  - content: |
+      [main]
+      gpg_check=1
+      installonly_limit=2
+      clean_requirements_on_remove=True
+      fastestmirror=True
+      max_parallel_downloads=7
+    path: /etc/dnf/dnf.conf
+    owner: root:root
+    permissions: '0644'
 
 ssh_pwauth: true
 chpasswd:
@@ -38,6 +58,7 @@ power_state:
   delay: "+1"
   mode: reboot
   condition: true
+  timeout: 120  # seconds
 
 packages:
   - vim
@@ -48,12 +69,15 @@ packages:
   - kernel-devel
   - kernel-headers
   - nmap
-  - python39 # for ansible
-  - "@Security Lab"
+  # use python3 instead of python39 or similar; python3 is certain to point to
+  # the latest python version available in the repositories (apart from
+  # python3-devel perhaps)
+  - python3  # for ansible
+  - "@security-lab"
   - sudo
   - tcpdump
   - tcpflow
   - tcptrack
 
-package_upgrade: true
+package_upgrade: false
 package_reboot_if_required: true

vms/cloudinit.host-victim.cfg

@@ -4,6 +4,23 @@
 runcmd:
   - cat /etc/resolv.conf
   - uname -r
+  # - echo -e "[main]\ngpg_check=1\ninstallonly_limit=2\nclean_requirements_on_remove=True\nfastestmirror=True\nmax_parallel_downloads=7" > /etc/dnf/dnf.conf
+  - timedatectl set-ntp 1
+  - timedatectl set-timezone Europe/Bratislava
+  - dnf config-manager --set-enabled cr powertools
+  - sed -i "s/xfs * defaults *1 1/ext4 noatime 0 0/" /etc/fstab
+
+write_files:
+  - content: |
+      [main]
+      gpg_check=1
+      installonly_limit=2
+      clean_requirements_on_remove=True
+      fastestmirror=True
+      max_parallel_downloads=7
+    path: /etc/dnf/dnf.conf
+    owner: root:root
+    permissions: '0644'
 
 ssh_pwauth: true
 chpasswd:
@@ -46,8 +63,11 @@ power_state:
   condition: true
 
 packages:
+  # install python3; it's a metapackage that points to the latest available
+  # version in the distro repositories; currently python 3.7.x for centos8
+  - python3  # for ansible
   - sudo
-  - python39 # for ansible
+  - vim
 
 package_upgrade: true
 package_reboot_if_required: true

vms/cloudinit.router.cfg

@@ -4,6 +4,22 @@
 runcmd:
   - cat /etc/resolv.conf
   - uname -r
+  - timedatectl set-ntp 1
+  - timedatectl set-timezone Europe/Bratislava
+  - dnf config-manager --set-enabled updates updates-testing
+  - sed -i "s/ext4 * defaults *1 1/ext4 noatime 0 0/" /etc/fstab
+
+write_files:
+  - content: |
+      [main]
+      gpg_check=1
+      installonly_limit=2
+      clean_requirements_on_remove=True
+      fastestmirror=True
+      max_parallel_downloads=7
+    path: /etc/dnf/dnf.conf
+    owner: root:root
+    permissions: '0644'
 
 ssh_pwauth: true
 chpasswd:
@@ -43,7 +59,10 @@ packages:
   - vim
   - frr
   - htop
-  - python39 # for ansible
+  # use python3 instead of python39 or similar; python3 is certain to point to
+  # the latest python version available in the repositories (apart from
+  # python3-devel perhaps)
+  - python3  # for ansible
   - sudo
 
 package_upgrade: true