Don't use {{ in when, variables are bare there.

playbooks/f19_temp_instance.yml

@@ -36,11 +36,11 @@
 
   - name: resize the /dev/vda 1 fs
     action: command resize2fs /dev/vda1
-    when: "{{ growpart.rc }} == 0"
+    when: growpart.rc == 0
 
   - name: put the mbr back - b/c the resize breaks booting otherwise
     action: shell cat /usr/share/syslinux/mbr.bin > /dev/vda
-    when: "{{ growpart.rc }} == 0"
+    when: growpart.rc == 0
 
 
   - include: "{{ tasks }}/cloud_setup_basic.yml"

tasks/collectd/client.yml

@@ -26,13 +26,13 @@
   yum: state=installed name=collectd-apache
   notify:
   - restart collectd
-  when_set: {{ collectd_apache }}
+  when_set: collectd_apache
 
 - name: /etc/collectd/apache.conf
   copy: src="{{ files }}/collectd/apache.conf" dest=/etc/collectd.d/apache.conf
   notify:
   - restart collectd
-  when_set: {{ collectd_apache }}
+  when_set: collectd_apache
 
   
 # each of the below should move to a separate task list

tasks/growroot_cloud.yml

@@ -17,13 +17,13 @@
    
 - name: reboot the box
   action: command /sbin/reboot
-  when: "{{ growpart.rc }} == 0"
+  when: growpart.rc == 0
   ignore_errors: true
 
 - name: wait for it to come back (should be quick)
   local_action: wait_for host={{ inventory_hostname }} port=22 delay=10 timeout=120
-  when: "{{ growpart.rc }} == 0"
+  when: growpart.rc == 0
 
 - name: resize the /dev/vda 2 fs
   action: command resize2fs /dev/vda2
-  when: "{{ growpart.rc }} == 0"
+  when: growpart.rc == 0