Auto-Remediation with Kubernetes and Ansible

Start with fixes that are safe to repeat, easy to undo, and already written in a runbook, such as restarting one service or rolling back a failed rollout. Leave data changes, security changes, and anything touching several services for a human decision.

Alerts repeat, so a remediation may run many times. An idempotent playbook checks the current state and acts only when it differs from the goal, so a second run changes nothing. A playbook that appends or restarts blindly can do more harm than the original fault.

Not directly. Alertmanager sends a webhook to a small receiver you run, and that receiver starts the playbook. The receiver must authenticate callers, check the alert name against an allow list, validate every value it passes on, and answer quickly.

Partly. Probes restart hung containers, readiness checks stop traffic reaching bad pods, autoscalers add capacity, and a stalled rollout can be rolled back. It cannot fix a fault that its health checks do not see, such as an exhausted connection pool behind a healthy-looking endpoint.