diff --git a/ansible/roles/metacluster/tasks/cleanup.yml b/ansible/roles/metacluster/tasks/cleanup.yml
new file mode 100644
index 0000000..45e28d5
--- /dev/null
+++ b/ansible/roles/metacluster/tasks/cleanup.yml
@@ -0,0 +1,4 @@
+- name: Zero-out disk
+  ansible.builtin.shell:
+    cmd: dd bs=1M count=$(df -m . | awk '/[0-9]%/{print $(NF-2)}') if=/dev/zero of=./zero; sync; sync; rm -f ./zero
+    chdir: /opt/metacluster