When running on CentOS7 image in AWS with selinux on, the order of

the tasks fail because selinux prevents ip-forwarding setting.

Moving the tasks around addresses two issues.  Makes sure that
the correct python tools are in place before adjusting of selinux
and makes sure that ipforwarding is toggled after selinux adjustments.

roles/kubernetes/preinstall/tasks/main.yml

@@ -76,17 +76,6 @@
   when: cloud_provider is defined and cloud_provider == 'azure'
   tags: [cloud-provider, azure, facts]
 
-- name: Enable ip forwarding
-  lineinfile:
-    dest: /etc/sysctl.d/99-sysctl.conf
-    regexp: '^net.ipv4.ip_forward='
-    line: 'net.ipv4.ip_forward=1'
-    state: present
-    create: yes
-    backup: yes
-    validate: 'sysctl -f %s'
-  tags: bootstrap-os
-
 - name: Create cni directories
   file:
     path: "{{ item }}"
@@ -134,6 +123,13 @@
   when: not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
   tags: bootstrap-os
 
+# Todo : selinux configuration
+- name: Set selinux policy to permissive
+  selinux: policy=targeted state=permissive
+  when: ansible_os_family == "RedHat"
+  changed_when: False
+  tags: bootstrap-os
+
 - name: Disable IPv6 DNS lookup
   lineinfile:
     dest: /etc/gai.conf
@@ -143,11 +139,15 @@
   when: disable_ipv6_dns and not ansible_os_family in ["CoreOS", "Container Linux by CoreOS"]
   tags: bootstrap-os
 
-# Todo : selinux configuration
-- name: Set selinux policy to permissive
-  selinux: policy=targeted state=permissive
-  when: ansible_os_family == "RedHat"
-  changed_when: False
+- name: Enable ip forwarding
+  lineinfile:
+    dest: /etc/sysctl.d/99-sysctl.conf
+    regexp: '^net.ipv4.ip_forward='
+    line: 'net.ipv4.ip_forward=1'
+    state: present
+    create: yes
+    backup: yes
+    validate: 'sysctl -f %s'
   tags: bootstrap-os
 
 - name: Write openstack cloud-config