Kubernetes Best Practices for Production

ihanyouqing#gmail.com (#->@) (Youqing Han) — Fri, 22 Aug 2025 00:00:00 +0000

Introduction

Kubernetes has become the de facto standard for container orchestration in production environments. However, running Kubernetes in production requires careful planning, proper configuration, and adherence to best practices. This comprehensive guide covers essential practices for deploying and managing Kubernetes clusters in production environments.

Security Best Practices

1. RBAC and Access Control

Implement proper Role-Based Access Control (RBAC) to ensure least privilege access.

# ClusterRole for application developers
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: app-developer
rules:
  - apiGroups: [""]
    resources: ["pods", "services", "configmaps", "secrets"]
    verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
  - apiGroups: ["apps"]
    resources: ["deployments", "replicasets"]
    verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
  - apiGroups: ["networking.k8s.io"]
    resources: ["ingresses"]
    verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]

---
# ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: app-developer-binding
subjects:
  - kind: ServiceAccount
    name: app-developer
    namespace: production
roleRef:
  kind: ClusterRole
  name: app-developer
  apiGroup: rbac.authorization.k8s.io

---
# ServiceAccount
apiVersion: v1
kind: ServiceAccount
metadata:
  name: app-developer
  namespace: production

2. Network Policies

Implement network policies to control pod-to-pod communication.

Scaling on Youqing Han - DevOps Engineer

Kubernetes Best Practices for Production

Introduction

Security Best Practices

1. RBAC and Access Control

2. Network Policies