Merge pull request #749 from kubernetes-incubator/azure_ip_forward

Set net.ipv4.ip_forward=1 on all systems, not only on GCE

roles/kubernetes/preinstall/tasks/main.yml

@@ -81,7 +81,7 @@
   when: cloud_provider is defined and cloud_provider == 'azure'
   tags: [cloud-provider, azure, facts]
 
-- name: Fix ipv4 forward rule in GCE security policy
+- name: Enable ip forwarding
   lineinfile:
     dest: /etc/sysctl.d/99-sysctl.conf
     regexp: '^net.ipv4.ip_forward='
@@ -90,8 +90,7 @@
     create: yes
     backup: yes
     validate: 'sysctl -f %s'
-  when: cloud_provider is defined and cloud_provider == 'gce'
-  tags: [cloud-provider, gce, bootstrap-os]
+  tags: bootstrap-os
 
 - name: Create cni directories
   file: