Merge branch 'disableIPv6' into 'master'

Disable ipv6

See merge request !497

CICD/plays/allnodes.yml

@@ -30,7 +30,7 @@
   - { role: ntp }
   - { role: set_timezone }
   - { role: logrotate, tags: [ logrotate, other ] }
-
+  - { role: disableIPv6, tags: [ disableipv6, networking ] }
 
 - hosts: 'DesktopNodes,ComputeNodes,LoginNodes,ManagementNodes'
   vars_files:

roles/disableIPv6/tasks/main.yml

+---
+- { name: disable ip v6, lineinfile: { path: '/etc/sysctl.conf', line: 'net.ipv6.conf.all.disable_ipv6 = 1'}, become: true }
+- { name: disable ip v6, lineinfile: { path: '/etc/sysctl.conf', line: 'net.ipv6.conf.default.disable_ipv6 = 1'}, become: true, register: ipv6changed }
+- { name: disable ip v6, command: 'sysctl -p', become: true, when: ipv6changed.changed  }