Kubernetes & OpenShift Platform Operations Playbook

This repository is a curated collection of operational runbooks, troubleshooting guides, and practical commands for Kubernetes and OpenShift environments.

It is a practical collection of operational procedures for Kubernetes and OpenShift environments, useful for troubleshooting container runtime, cluster issues, automation workflows, and cloud-native tooling.

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Scope

The repository covers operational scenarios in cloud-native environments, focusing on real-world troubleshooting and platform operations.

It includes:

• cluster and workload debugging in Kubernetes and OpenShift
• container image and runtime troubleshooting
• infrastructure automation and provisioning workflows
• Elasticsearch and Kibana incident response and diagnostics
• storage access and S3-compatible integrations

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Structure

• ansible/ → Infrastructure and security automation workflows (AAP, RBAC, LDAP, Elasticsearch)
• build/ → Container build and deployment tooling (Buildah, Podman, OpenShift build processes)
• containers/ → Container runtime and image operations (Java memory debugging, tools like skopeo, image inspection)
• elastic/ → Elasticsearch and Kibana incident troubleshooting, cluster diagnostics, and index/storage management
• kubernetes/ → Kubernetes cluster operations and troubleshooting (pod debugging, networking, observability, TCP/IP diagnostics)
• storage/ → Cloud storage operations and S3-compatible integrations (AWS CLI, NetApp S3, rclone)
• troubleshooting/java/ → JVM and Java runtime troubleshooting on OpenShift. Covers GC logs, heap analysis, thread dumps, and production-grade debugging techniques for diagnosing memory, latency, and performance issues in containerized Java workloads.

Purpose

The goal of this repository is to provide a practical, command-driven knowledge base for real operational tasks in Kubernetes-based environments.

It is not a tutorial, but a reference for day-to-day platform engineering activities.

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Notes

All content is based on real operational experience in cloud-native environments and focuses on reproducible troubleshooting patterns and infrastructure operations.