How to Install kubectl on Linux and Use It (get, describe, logs)
Install kubectl on Linux from official binaries, configure kubeconfig, switch context, kubectl get pods/nodes, describe events, logs, and…
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Docker logs and docker exec: Debug Containers on Linux (Compose Included)
Debug Docker on Linux: docker logs --tail and -f, docker ps -a exit codes, docker exec into containers,…
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How to Install Docker Compose on Linux (Compose v2 Plugin)
Install Docker Compose v2 on Linux as a docker compose plugin, write compose.yaml, docker compose up -d, logs,…
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Terraform vs Ansible: What Is the Difference (and Do You Need Both)?
Terraform vs Ansible explained: provision cloud infra with state vs configure servers over SSH, when to use each,…
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Kubernetes Ingress with NGINX and TLS (cert-manager) Explained
Expose Kubernetes apps with an NGINX Ingress controller: install, host and path routing, TLS via cert-manager, annotations and…
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Ansible Roles Tutorial: Structure, Templates and Reuse
Organise Ansible playbooks into reusable roles: directory layout, tasks, templates, handlers, defaults, testing and requirements.yml.
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Ansible Vault: Encrypting Secrets in Playbooks (Complete Guide)
Encrypt secrets in Ansible with Vault: create and edit vault files, encrypt single variables inline, and run playbooks…
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OpenTelemetry Basics: Distributed Tracing for Linux Services (Complete Guide)
Set up OpenTelemetry for distributed tracing: instrument a service, run the Collector, and send traces to Jaeger alongside…
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Kubernetes Storage: PersistentVolumes and PersistentVolumeClaims Explained
Understand Kubernetes storage: PersistentVolumes, PersistentVolumeClaims, StorageClasses for dynamic provisioning, and what happens to data when a pod restarts.
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Helm Basics: Packaging and Deploying Kubernetes Applications (Complete Guide)
Learn Helm, the Kubernetes package manager: chart structure, values overrides, installing and upgrading releases, and rolling back a…
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