Ansible Idempotency Drift Fix for Repeated Changes

Stop playbooks from reporting changes every run when nothing should have changed.

April 10, 2026•1 min read

#ansible#idempotency#drift

Problem

Each playbook run reports changes on the same hosts even when the system is already configured.

Root Cause

The tasks use shell commands or templates that always rewrite files without checking current state.

Fix

Code

ansible-playbook harden.yml -i inventories/prod/hosts.ini --check --diff
grep -n "changed_when" roles/hardening/tasks/main.yml
ansible-lint roles/hardening/tasks/main.yml

Result

The playbook becomes idempotent and repeated runs stop producing false-positive changes.

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