What Is Docker? Containers, Images, Registries, and Compose Explained Simply
A beginner-friendly explanation of Docker covering containers, images, Dockerfiles, registries, Compose, containers vs VMs, and what Docker does—and does not—solve.
Docker & Kubernetes
Showing 13 of 13 articlesDocker for Backend Developers: Images, Containers, Networks, Volumes, and Compose
A practical Docker guide for backend developers covering images, containers, ports, networks, volumes, Compose, persistent data, and the differences between local development and production.
Kubernetes Pods Explained: Lifecycle, Probes, Init Containers, Sidecars, and Resources
A concise guide to Kubernetes Pods covering lifecycle, resource requests and limits, startup/readiness/liveness probes, init containers, native sidecars, and graceful termination.
Dockerizing Node.js Apps for Production: Smaller Images, Safer Containers, Faster Builds
A focused production guide to Dockerizing Node.js with multi-stage builds, deterministic dependencies, non-root execution, .dockerignore, runtime secrets, graceful shutdown, and smaller runtime images.
Production Kubernetes Setup: HA, Security, Networking, Storage, and Recovery
A practical production Kubernetes blueprint covering managed vs self-managed clusters, HA control planes and etcd, networking, RBAC, Pod Security, resource controls, storage, observability, upgrades, and disaster recovery.
Kubernetes Explained Simply: Pods, Deployments, Services, and the Control Plane
A beginner-friendly explanation of Kubernetes: how the control plane, worker nodes, Pods, Deployments, Services, configuration, storage, and self-healing fit together—and what Kubernetes does not do for you.
Kubernetes Services Explained: ClusterIP, NodePort, LoadBalancer, and Headless Services
A concise guide to Kubernetes Services covering ClusterIP, NodePort, LoadBalancer, ExternalName, headless Services, EndpointSlices, readiness, DNS, and public-vs-internal routing.
Scaling Kubernetes Workloads: HPA, VPA, Node Autoscaling, and Scale-to-Zero
A practical guide to Kubernetes scaling covering HPA, VPA, node autoscaling, custom metrics, scale-to-zero, resource requests, queue-driven workloads, and common autoscaling mistakes.
Docker Containerization Best Practices: Designing Apps for Replaceable Containers
A concise guide to designing applications for Docker containerization: focused services, external state, runtime configuration, immutable images, production-vs-dev mounts, logging, shutdown, and least privilege.
Docker Images Explained: Layers, Tags, Digests, Build Cache, and Multi-Platform Images
A concise guide to Docker images covering immutable layers, build cache, tags vs digests, trusted minimal base images, multi-stage builds, multi-platform images, and production image identity.
Docker Containers Explained: Isolation, Lifecycle, Resources, and Persistent Data
A concise explanation of Docker containers covering process isolation, lifecycle, disposable writable layers, persistent volumes, CPU/memory limits, graceful shutdown, and runtime hardening.
Kubernetes Deployments Explained: Rolling Updates, Rollbacks, and Zero-Downtime Releases
A focused guide to Kubernetes Deployments covering ReplicaSets, rolling updates, maxSurge/maxUnavailable, readiness, rollout status, progress deadlines, rollback, and safe production release patterns.
Kubernetes Fundamentals: Objects, YAML, Labels, Namespaces, and Workloads
A compact hands-on foundation for Kubernetes covering desired-state objects, spec vs status, YAML, labels/selectors, namespaces, core workload/network/storage resources, and kubectl.