diff --git a/ispmail.yml b/ispmail.yml
index 697a062..dc0aba8 100644
--- a/ispmail.yml
+++ b/ispmail.yml
@@ -3,4 +3,5 @@
 - hosts: all
   roles:
   - ispmail-packages
+  - dumpvars
 
diff --git a/roles/dumpvars/tasks/main.yml b/roles/dumpvars/tasks/main.yml
new file mode 100644
index 0000000..35d6006
--- /dev/null
+++ b/roles/dumpvars/tasks/main.yml
@@ -0,0 +1,3 @@
+---
+- name: Dump all vars
+  action: template src=dumpall.j2 dest=/tmp/ansible-vars
diff --git a/roles/dumpvars/templates/dumpall.j2 b/roles/dumpvars/templates/dumpall.j2
new file mode 100644
index 0000000..9fe6aee
--- /dev/null
+++ b/roles/dumpvars/templates/dumpall.j2
@@ -0,0 +1,23 @@
+Module Variables ("vars"):
+--------------------------------
+{{ vars | to_nice_json }}
+
+Environment Variables ("environment"):
+--------------------------------
+{{ environment | to_nice_json }}
+
+GROUP NAMES Variables ("group_names"):
+--------------------------------
+{{ group_names | to_nice_json }}
+
+GROUPS Variables ("groups"):
+--------------------------------
+{{ groups | to_nice_json }}
+
+HOST Variables ("hostvars"):
+--------------------------------
+{{ hostvars | to_nice_json }}
+
+HOST Variables for this host ({{inventory_hostname}}):
+---------------------------------------
+{{ hostvars[inventory_hostname] | to_nice_json }}