k8s-application-best-practices

Best practices for applications on Kubernetes.

Application architecture

• What a Pod is and what a Pod is not

• Use Deployments for stateless components

• Use StatefulSets for stateful components

• Use Services to expose and access your components

• Use liveness and readiness probes on you components

• Make your components log to stdout / stderr

• Expose your component's metrics on an endpoint

• Configure components via environment variables and use ConfigMaps for configuration parameters

• Resource requests and limits

• Persistence

• Graceful shutdown

Security

• Run with ServiceAccounts

• Restricting network connectivity

• Unprivileged containers

• Read-only filesystem

• Minimal containers

• Scan youe images

• Use Secrets with care

Deployment

• Be declarative

• Managing variants