sysctl file should be in defaults so that it can be overriden (#2475)

* sysctl file should be in defaults so that it can be overriden

* Change sysctl_file_path to be consistent with roles/kubernetes/preinstall/defaults/main.yml

roles/kubernetes/node/defaults/main.yml

@@ -93,6 +93,8 @@ kube_cadvisor_port: 0
 # The read-only port for the Kubelet to serve on with no authentication/authorization.
 kube_read_only_port: 0
 
+# sysctl_file_path to add sysctl conf to
+sysctl_file_path: "/etc/sysctl.d/99-sysctl.conf"
 
 # For the openstack integration kubelet will need credentials to access
 # openstack apis like nova and cinder. Per default this values will be

roles/kubernetes/node/tasks/main.yml

@@ -61,6 +61,7 @@
     name: net.ipv4.ip_local_reserved_ports
     value: "{{ kube_apiserver_node_port_range }}"
     sysctl_set: yes
+    sysctl_file: "{{ sysctl_file_path }}"
     state: present
     reload: yes
   when: kube_apiserver_node_port_range is defined
@@ -96,6 +97,7 @@
   sysctl:
     name: "{{ item }}"
     state: present
+    sysctl_file: "{{ sysctl_file_path }}"
     value: 1
     reload: yes
   when: sysctl_bridge_nf_call_iptables.rc == 0