Kubernetes Probes: Liveness, Readiness, and Startup
Use better Kubernetes probes by choosing the right signal, tuning thresholds, and avoiding false restarts, traffic drops, and noisy rollouts.
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Kubernetes
35 practical articles on Kubernetes, covering setup, troubleshooting, and production decisions.
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Kubernetes Ephemeral Containers: Safe Production Debugging
Safely inspect a live Pod without baking debugging tools into production images.
Kubernetes NetworkPolicy: Default Deny, DNS, and Safe Rollout
A concrete rollout path for Kubernetes NetworkPolicy: start with default deny, whitelist DNS and key dependencies, and avoid breaking production traffic.
Kubernetes Rollout Safety: PDB, Surge, and Unavailable Settings
Combine Deployment rollingUpdate settings with PodDisruptionBudgets to keep availability during upgrades and node maintenance.
LWS PD Disaggregation for vLLM and SGLang
Deploy SGLang and vLLM Prefill/Decode roles with LWS DisaggregatedSet, NIXL startup commands, validation steps, and production safeguards.
Kubernetes Requests and Limits: Scheduling, Throttling, OOM
How CPU/memory requests and limits actually affect scheduling, throttling, OOMKills, and autoscaling.
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Kubernetes Probes: Liveness, Readiness, and Startup
Use better Kubernetes probes by choosing the right signal, tuning thresholds, and avoiding false restarts, traffic drops, and noisy rollouts.
Kubernetes Ephemeral Containers: Safe Production Debugging
Safely inspect a live Pod without baking debugging tools into production images.
Kubernetes NetworkPolicy: Default Deny, DNS, and Safe Rollout
A concrete rollout path for Kubernetes NetworkPolicy: start with default deny, whitelist DNS and key dependencies, and avoid breaking production traffic.
Kubernetes Rollout Safety: PDB, Surge, and Unavailable Settings
Combine Deployment rollingUpdate settings with PodDisruptionBudgets to keep availability during upgrades and node maintenance.
LWS PD Disaggregation for vLLM and SGLang
Deploy SGLang and vLLM Prefill/Decode roles with LWS DisaggregatedSet, NIXL startup commands, validation steps, and production safeguards.
Kubernetes Requests and Limits: Scheduling, Throttling, OOM
How CPU/memory requests and limits actually affect scheduling, throttling, OOMKills, and autoscaling.
Kubernetes RBAC Least Privilege: Roles and Bindings
Learn concrete Kubernetes RBAC least-privilege patterns, how to reduce overbroad permissions, and which checks catch risky role bindings before incidents.
Kubernetes vs Docker vs OpenStack: Where Each Fits
Separate container packaging, Kubernetes orchestration, and OpenStack IaaS so teams choose the layer that matches their actual operating problem.
Kubernetes Troubleshooting: Pending, CrashLoopBackOff, and Traffic
A concrete Kubernetes troubleshooting playbook for Pending Pods, CrashLoopBackOff, readiness failures, networking issues, and node-level problems.
Kubernetes Autoscaling: HPA, VPA, and Cluster Autoscaler Boundaries
How to make autoscaling predictable: right requests, sane HPA behavior, VPA recommendations, and capacity-aware cluster scaling.
Kubernetes Probes: Liveness, Readiness, and Startup Protection
Learn how liveness, readiness, and startup probes work in Kubernetes, what each one should check, and how to avoid restart loops and false failures.
Deploying MySQL with Helm: Chart Defaults and Operational Boundaries
Use Helm to deploy a MySQL cluster on Kubernetes while understanding chart defaults, persistence, networking, and production tradeoffs.
kubectl port-forward: Debugging Boundaries and Failure Signals
Learn how kubectl port-forward works, when to use it for debugging, and how it differs from Services, Ingress, and production traffic paths.
MySQL Source and Replicas on Kubernetes: Status, Routing, and Failover
Understand MySQL source-replica topology on Kubernetes and use MySQL 8.4 commands to verify replication status, routing, and failover.
Kubernetes Headless Service: Pod Identity, DNS, and Stateful Apps
Understand when to use a headless Service in Kubernetes, how DNS works without a virtual IP, and why it matters for StatefulSets and peer discovery.
Kubernetes StatefulSet: Stable Identity, Ordered Rollouts, and Storage
Learn when to use a StatefulSet in Kubernetes, how stable Pod identity works, and why ordering and persistent storage matter.
Kubernetes StorageClass: Provisioning, Defaults, and Debugging
Understand how StorageClass enables dynamic provisioning in Kubernetes, how default classes work, and how to choose the right storage policy.
Kubernetes PV and PVC: Binding, Reclaim Policy, and Storage Debugging
Learn how PersistentVolumes and PersistentVolumeClaims work in Kubernetes, how binding happens, and how to troubleshoot storage lifecycle issues.
Kubernetes Ephemeral Volumes: emptyDir, Caches, and Scratch Data
Use emptyDir, memory-backed volumes, and generic ephemeral volumes for caches, build spaces, and sidecar data while managing scheduling, eviction, and cleanup.
Kubernetes Volumes: Temporary Data, Mounts, and Storage Choices
Learn the core Kubernetes volume types, what data survives Pod restarts, and how to choose between temporary and persistent storage.
Kubernetes ConfigMaps and Secrets: Safe Configuration Patterns
Understand when to use ConfigMap or Secret in Kubernetes, how they reach Pods, and which practices reduce config drift and secret exposure.
Running MySQL on Kubernetes: Storage, Access, and Backup Boundaries
Learn the essentials of running MySQL on Kubernetes, including StatefulSets, persistent storage, Services, and operational tradeoffs.
Stateful Apps on Kubernetes: Storage, Identity, and Upgrade Pace
A concrete guide to stateful applications on Kubernetes, covering storage choices, stable identities, rollout concerns, and failure handling.
Kubernetes Canary Releases: Rollout, Signals, and Rollback
Learn practical canary release patterns in Kubernetes, how to reduce rollout risk, and which signals to watch before promoting traffic.
Kubernetes Declarative Config: apply, diff, and Review
Understand declarative configuration in Kubernetes, why desired state matters, and how apply, diff, and reconciliation shape safe operations.
Kubernetes Namespace: Isolation Boundaries, Naming, and Access Control
Learn how Kubernetes Namespaces organize resources, scope policies and quotas, and support safer multi-team or multi-environment clusters.
Kubernetes Service: Stable Entry Points, Endpoints, and Traffic Paths
Learn how Kubernetes Services provide stable networking for Pods, how service types differ, and how to troubleshoot selectors, endpoints, and traffic flow.
Kubernetes Deployment and ReplicaSet: Replicas, Rollouts, and Rollback
Learn how Deployments and ReplicaSets work together in Kubernetes, how rolling updates happen, and how to debug rollout and selector problems.
Kubernetes Pod: Lifecycle, Scheduling, and Debugging Entry Point
Understand what a Pod really is in Kubernetes, how Pods are scheduled and restarted, and which commands help you debug them.
K3s Quick Start: Installation, Edge Use, and Host Checks
Learn when to use K3s, how to install it quickly, and how to run core Kubernetes workloads on a lightweight cluster for labs and edge environments.