Securing Kubernetes Clusters - Production Best Practices
Comprehensive guide to securing Kubernetes clusters in production, including RBAC, network policies, secrets management, and security scanning.
25 posts
Comprehensive guide to securing Kubernetes clusters in production, including RBAC, network policies, secrets management, and security scanning.
How we scaled our microservices architecture from 500 to 10,000 requests per second using Kubernetes, including real metrics, challenges, and lessons learned.
Real-world lessons from deploying and managing 50+ microservices on Kubernetes, including scaling, monitoring, and disaster recovery.
Implemented GitOps with ArgoCD - deployment time 30min → 2min, zero manual kubectl, full audit trail. 100% declarative
Deployed Istio service mesh - zero-downtime deployments, automatic retries, distributed tracing. MTTR reduced by 70%
Upgraded to Kubernetes 1.18 - kubectl debug, topology-aware routing, ingress improvements. Reduced debugging time by 60%
Implementing HPA to automatically scale microservices based on CPU, memory, and custom metrics
Implementing zero-trust networking in Kubernetes using Network Policies, including real-world examples and common pitfalls
Our experience migrating from self-managed Kubernetes (kops) to Amazon EKS in production.
Mastering Kubernetes pod placement - node affinity, pod anti-affinity, taints/tolerations, and building a custom scheduler for special workloads
Understanding Kubernetes Operators and how they automate deployment and management of complex applications.
Evaluating Jenkins X and GitOps workflow for Kubernetes deployments.
Testing Istio and Linkerd to solve microservices networking challenges - traffic management, security, and observability
Evaluating Istio service mesh for Kubernetes - features, benefits, and whether the added complexity is worth it.
My experience running PostgreSQL and Redis on Kubernetes using StatefulSets, including storage, networking, and backup strategies
Implementing canary releases with Kubernetes and Istio - gradual rollout, automated rollback, and catching bugs before they affect all users
Managing persistent storage in Kubernetes - PV, PVC, StorageClass, dynamic provisioning, and running databases in production
How Helm simplifies Kubernetes deployments with templating and package management.
Lessons learned from running Kubernetes in production for 6 months - the good, the bad, and the ugly.
Lessons learned from migrating our production infrastructure from EC2 instances to Kubernetes.
Implementing blue-green deployment strategy for zero-downtime releases - switching traffic, rollback in seconds, and lessons learned
Setting up automated deployments to Kubernetes using Jenkins Pipeline and kubectl.
Separating configuration from code with ConfigMaps and Secrets - environment-specific configs, secret management, and best practices
My initial experience setting up a Kubernetes cluster and whether it's ready for production use.
Controlling where pods run in Kubernetes cluster - node selectors, affinity, anti-affinity, and taints/tolerations