Added basic setup for master and certification material

tweak_rpi4.yaml

@@ -0,0 +1,25 @@
+---
+
+- name: Enable container features
+  replace:
+    path: /boot/cmdline.txt
+    regexp: '^([\w](?!.*\b{{ item }}\b).*)$'
+    replace: '\1 {{ item }}'
+  with_items:
+  - "cgroup_enable=cpuset"
+  - "cgroup_memory=1"
+  - "cgroup_enable=memory"
+  - "wapaccount=1"
+  register: cmdline
+
+- name: Set Swappoff in conf file
+  lineinfile:
+    path: /etc/dphys-swapfile
+    line: CONF_SWAPSIZE=0
+    state: present
+    insertafter: EOF
+  register: swap
+
+- name: Unconditionally reboot the machine with all defaults
+  reboot:
+  when: cmdline.changed or swap.changed