kubernetes-patterns

name	kubernetes-patterns
description	Provides Kubernetes resource management, Helm chart patterns, service mesh configuration, and autoscaling strategies. Covers HPA, VPA, KEDA, operators, security contexts, and namespace isolation. Use when user mentions 'kubernetes', 'k8s', 'helm', 'istio', 'linkerd', 'service mesh', 'HPA', 'VPA', 'KEDA', 'pod security', 'resource quotas', 'operators'.
type	skill
category	patterns
status	stable
origin	tibsfox
modified	false
first_seen	"2026-02-07T00:00:00.000Z"
first_path	examples/kubernetes-patterns/SKILL.md
superseded_by	null

Kubernetes Patterns

Best practices for deploying, scaling, securing, and managing workloads on Kubernetes. This skill covers resource management, Helm chart structure, service mesh configuration, autoscaling strategies, and security hardening.

Resource Management

Every container must declare resource requests and limits. Without them, the scheduler cannot make informed placement decisions and nodes can become overcommitted.

Resource Type	Request (Guaranteed)	Limit (Maximum)	What Happens at Limit
CPU	Reserved on node	Throttled (not killed)	Container slows down
Memory	Reserved on node	OOM-killed	Container restarts
Ephemeral Storage	Reserved on node	Evicted	Pod removed from node
GPU	Reserved on node	Hard limit	Cannot exceed

QoS Classes

Kubernetes assigns QoS classes based on resource declarations. This determines eviction priority.

QoS Class	Condition	Eviction Priority
Guaranteed	requests == limits for all containers	Last (highest priority)
Burstable	requests < limits for at least one container	Middle
BestEffort	No requests or limits set	First (lowest priority)

Resource Declaration Best Practices

apiVersion: apps/v1
kind: Deployment
metadata:
  name: api-server
  namespace: production
spec:
  replicas: 3
  selector:
    matchLabels:
      app: api-server
  template: