Ensure the kernel key storage quote is not reached, so idmapping works

nfs-client/handlers/main.yml

@@ -9,3 +9,6 @@
 
 - name: reload sysfs.conf
   service: name=sysfsutils state=restarted
+
+- name: reload sysctl
+  command: sysctl -p

nfs-client/tasks/main.yml

@@ -39,6 +39,15 @@
     - sysfs
     - config
 
+- name: ensure the kernel key storage quote used for idmapping is sufficiently high
+  sysctl: name=kernel.keys.root_maxkeys state=present value=1000 # default is 200, this quote was reached
+  notify:
+    - reload sysctl
+  tags:
+    - nfs-client
+    - sysctl
+    - config
+
 # makes life much easier to have an automounter and not /etc/fstab
 - name: ensure automounter is installed
   apt: name=autofs state=latest