☸️Kubernetes Manifest Linter
Validate Kubernetes manifests against schema rules and SRE production-grade best practices (resource constraints, security privileges, high availability, and deterministic images).
Awaiting Validation
Paste your YAML manifest in the editor and click "Lint Manifest" to start parsing and validate infrastructure best practices.
Kubernetes Production Best Practices
Configuring Kubernetes manifests correctly is fundamental to infrastructure reliability, predictable scheduling, and strong container security. Neglecting limits or security privileges often leads to outages and vulnerabilities.
Resource Contention
If container resources limits are omitted, a single memory leak or cpu-intensive loop can exhaust the entire host node's resources, causing the kubelet to evict other critical pods.
Privileged Isolation
By default, processes inside Docker containers can run as the root user. If a container is compromised, the attacker has elevated privileges. Enforcing runAsNonRoot forces the container to run under unprivileged Unix IDs.
Recommended Deployment Checklist:
- Define Limits: Configure
requestsandlimitsfor both CPU and Memory. - HA Replicas: Deploy replica counts greater than 1 (ideally with PodDisruptionBudgets) to survive node restarts.
- Deterministic Tags: Avoid mutable tags like
latest. Tag image references with immutable digests or semantic build numbers. - Health Monitoring: Configure
readinessProbe(traffic control) andlivenessProbe(autorestart) for all web apps.