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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Restic Encrypted Backups on Linux: Repository, Retention and systemd Timer
Set up restic for encrypted, deduplicated Linux backups: init, first backup, excludes, retention, systemd timer and restore drills.
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ViciDial Docker Deployment: Architecture and Container Build Guide
How to split a ViciDial stack across Docker containers: the web frontend, Asterisk, and MySQL images, the architecture…
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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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Blue-Green vs Canary Deployments Explained (with Traefik)
Understand blue-green and canary deployment strategies and implement both with Traefik's weighted routing for zero-downtime, lower-risk releases.
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Self-Hosted Container Registry with Harbor (Complete Guide)
Run a private Docker registry with Harbor: install with Docker Compose, push/pull images, enable Trivy vulnerability scanning, and…
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GitOps with ArgoCD: Deploying to Kubernetes from Git (Complete Guide)
Set up ArgoCD for GitOps on Kubernetes: install it, connect a Git repo, create and sync an Application,…
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