k8s-cleaner
Cleaner is a Kubernetes controller that identifies unused or unhealthy resources, helping you maintain a streamlined and efficient Kubernetes cluster.
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k8s-cleaner is a Kubernetes controller that finds and removes or updates unused or unhealthy resources.
- for
- Kubernetes administrators and DevOps engineers managing clusters
- pricing
- open source
- license
- Apache-2.0
Key features
- Schedule — Define scan frequency with Cron syntax to run cleanup regularly.
- DryRun — Test filtering logic without applying changes to resources.
- Label Filtering — Select resources based on label keys, operators, and values.
- Lua-based Selection — Write custom Lua scripts for complex resource selection criteria.
- Notifications — Send detailed cleanup reports to Slack, Webex, Discord, Telegram or Teams.
- Resource Removal & Updates — Automatically delete stale resources or patch them to current configurations.
Use cases
- Remove orphaned pods and services to free cluster capacity
- Update outdated ConfigMaps to match new standards
- Run nightly scans to keep the cluster free of resource bloat
- Notify team channels when resources are cleaned or patched
- Validate cleanup rules safely using DryRun before production
k8s-cleaner FAQ
What types of resources can k8s-cleaner manage?+
It can handle any Kubernetes resource type, including custom resources.
How can I test my cleanup rules safely?+
Enable DryRun mode; the controller will identify matching resources without making changes.
Can I schedule scans at specific intervals?+
Yes, you can set a Cron expression to define how often k8s-cleaner runs.
How are notifications delivered?+
You can configure Slack, Webex, Discord, Telegram or Teams to receive cleanup reports.
Is k8s-cleaner free to use?+
Yes, it is an open-source project available on GitHub.
Summarized by DevHunt from gianlucam76.github.io · Oct 2, 2026. Details may change; check the official site.
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