Kubernetes cost optimization: a practical EKS playbook
Find the real cost drivers, right-size requests, and choose autoscaling and Spot capacity without making reliability an afterthought.
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Practical ideas for systems in production.
Technical guides on cloud infrastructure, delivery automation, and the operational details that keep services dependable. Examples are educational templates; adapt and validate them for your environment.
THE LIBRARY
Field guides
15 practical guides across the operations lifecycle.
A Jenkins CI/CD pipeline for microservices
A production-minded pipeline with quality gates, image scanning, Kubernetes rollout, notifications, and a rollback path.
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Terraform workflows that scale past one environment
Remote state, reusable modules, environment separation, and a safer plan-and-apply workflow for teams.
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Docker storage issues: why your server runs out of disk space
Understand images, writable layers, volumes, build cache, and logs before cleaning anything.
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PostgreSQL performance tuning for production
Find query, connection, vacuum, and storage bottlenecks before changing settings.
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Build a practical Prometheus and Grafana stack
Metrics, actionable alert rules, Slack routing, and dashboards for operational decisions.
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Kubernetes troubleshooting: 15 common issues
A calm diagnostic path through pod, network, storage, ingress, and node symptoms.
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Secure Docker and Kubernetes in production
Practical controls for scanning, Pod Security, RBAC, network policy, and runtime visibility.
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Manage AWS servers without direct SSH access
Session Manager, instance roles, port forwarding, Run Command, and audit considerations.
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Incident walkthrough: Linux disk at 100%
An explicitly illustrative timeline for diagnosis, safe mitigation, and permanent fixes.
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Slack notifications for Jenkins pipelines
Route useful build and deployment status while keeping app credentials out of code.
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Linux log management and retention
Control journald, logrotate, application output, and Docker logs without losing needed history.
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DevOps roadmap 2027: skills that compound
A practical learning sequence with hands-on projects and free documentation resources.
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GitOps with Argo CD: deploy from declared state
Reconciliation, environment promotion, self-healing, access controls, and Git-based rollback.
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50 Linux and DevOps commands worth knowing
A categorized quick reference with concise explanations and safe-use context.
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