Merge pull request #38 from fnord123/ubuntu2004

Add support for Ubuntu 20.04

README.md

@@ -7,7 +7,7 @@ Author: <https://github.com/itwars>
 Build a Kubernetes cluster using Ansible with k3s. The goal is easily install a Kubernetes cluster on machines running:
 
 - [X] Debian
-- [ ] Ubuntu
+- [X] Ubuntu
 - [X] CentOS
 
 on processor architecture:

roles/ubuntu/tasks/main.yml

@@ -0,0 +1,14 @@
+---
+- name: Enable cgroup via boot commandline if not already enabled
+  lineinfile:
+    path: /boot/firmware/cmdline.txt
+    backrefs: yes
+    regexp: '^((?!.*\bcgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory\b).*)$'
+    line: '\1 cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory'
+  when:
+    - ansible_distribution == 'Ubuntu'
+
+- name: Reboot to enable cgroups
+  reboot:
+  when:
+    - ansible_distribution == 'Ubuntu'

site.yml

@@ -7,7 +7,7 @@
     - role: prereq
     - role: download
     - role: raspbian
-
+    - role: ubuntu
 
 - hosts: master
   become: yes