Automation
Terraform in CI/CD: pipelines, plan review, OIDC and GitOps
Automate Terraform: plan pipeline on merge requests and apply after approval, posting the plan as a comment, OIDC federated identities to AWS, Azure and G…
Guides & insights
A library for curious minds
DevOps
Infrastructure as Code and GitOps: Terraform, Ansible and Argo CD
Manage infrastructure as code: declarative or imperative, Terraform (providers, state, plan, modules, drift), Ansible for configuration, immutable infrast…
Observability
Vector: sources, transforms, sinks and topology
Vector concepts (sources, transforms, sinks), YAML configuration, common components, disk buffers and operational tools (validate, top, tap).
Proxy & networking
Visualizing your infrastructure with HAProxy Topology Visualizer
Learn how to use HAProxy Topology Visualizer to turn complex haproxy.cfg files into interactive diagrams and make debugging your architecture easier.
Cloud computing
Stop moving to the Cloud, to micro-services...
I will certainly shock more than one person in this article, but don't hesitate to read to the end and then leave comments.
Observability
Git Sync in Grafana: version dashboards in GitHub
Sync Grafana dashboards and folders with a GitHub repository: prerequisites, token, setup in Administration > Provisioning, saving through commits or pull…
Observability
Grafana announcement banner: inform every user
Show a message at the top of every Grafana page: enabling it, the Message field with Markdown and HTML, colour variants, scheduling, permissions, API prov…
Cloud computing
Compute on Google Cloud: Compute Engine, GKE, Cloud Run and Cloud Functions
Choose compute on Google Cloud: Compute Engine VMs and managed instance groups, Google Kubernetes Engine (Standard and Autopilot), Cloud Run for serverles…
Cloud computing
Azure networking: VNet, NSG, peering, load balancing and hybrid connectivity
Design networking on Azure: virtual networks and subnets, network security groups (NSG), peering and hub-and-spoke topology, Azure Firewall, Private Endpo…
Systems & Linux
Processes, memory and performance: monitoring and troubleshooting a Linux server
Understand and control Linux processes (ps, top, signals, nice, jobs), interpret load, memory and I/O (free, vmstat, iostat), diagnose with lsof and strac…
Systems & Linux
Bash scripts for administrators: writing robust scripts
Automate Linux administration with Bash: variables and quoting, conditions, loops, functions, exit codes, set -euo pipefail, trap, arguments with getopts,…
DevOps
Organizing DevOps: value streams, teams and a blameless culture
Set up a DevOps organization: value chain and value stream mapping, Team Topologies, « you build it, you run it », platform teams, small batches, feedback…
Learning never stops