SRE Golden Signals Monitoring Guide
Learn the four golden signals of monitoring from Google SRE and how to implement them with Prometheus for reliable production systems.
·5 min read · #devops#sre#monitoring
#devops
98 posts · page 2 of 3
SRE Error Budgets and SLO/SLI Practices
Learn how to define SLIs, set SLOs, and use error budgets to balance reliability with feature velocity in your engineering team.
·7 min read · #devops#sre#slo
Terraform Modules for Reusable Infrastructure
Learn how to build, structure, and publish Terraform modules to create reusable, composable infrastructure as code.
·6 min read · #devops#terraform#iac
HashiCorp Vault for Secrets Management
Learn how to use HashiCorp Vault to store, access, and rotate secrets securely across your infrastructure and applications.
·6 min read · #devops#vault#secrets
Ansible Automation Basics
Automate server configuration with Ansible — inventory, playbooks, modules, roles, and idempotent infrastructure management.
·3 min read · #ansible#automation#beginners
Nginx as a Reverse Proxy
Configure Nginx as a reverse proxy — upstream servers, load balancing, SSL termination, WebSocket support, and caching.
·3 min read · #nginx#devops#intermediate
Monitoring with Prometheus and Grafana
Set up application monitoring with Prometheus and Grafana — metrics, PromQL queries, alerting rules, and building dashboards.
·3 min read · #prometheus#grafana#intermediate
Getting Started with Terraform
Learn Terraform from scratch — providers, resources, variables, state, modules, and deploying your first infrastructure as code.
·3 min read · #terraform#iac#beginners
CI/CD Monorepo Strategies That Scale
Learn how to design CI/CD pipelines for monorepos using affected detection, build graphs, and caching to keep builds fast as the repo grows.
·4 min read · #cicd#monorepo#devops
CI/CD Deployment Strategies Overview
Compare rolling, blue/green, canary, shadow, and feature flag deployments. Learn when to pick each strategy and the trade-offs in risk and cost.
·4 min read · #cicd#deployment#devops
CI/CD Pipeline Caching Techniques
Speed up CI builds with dependency caches, layer caches, remote build caches, and content-addressed storage. Learn what to cache and what to skip.
·4 min read · #cicd#caching#devops
CI/CD Secrets Management Best Practices
Keep API keys, tokens, and database credentials safe in CI/CD with rotation, scoping, secret managers, and OIDC-based authentication.
·3 min read · #ci-cd#secrets#security
GitHub Actions Reusable Workflows Tutorial
Stop copy-pasting CI YAML across repos. Learn how to build reusable GitHub Actions workflows with inputs, secrets, outputs, and per-environment overrides.
·4 min read · #github-actions#ci-cd#automation
AWS S3 Bucket Policies Explained
How S3 bucket policies, IAM policies, and ACLs interact, how to write least-privilege bucket policies, and patterns for cross-account access without footguns.
·5 min read · #aws#s3#security
Blameless Postmortems for DevOps Teams
How to run a blameless postmortem that actually improves your systems. Covers the philosophy, the meeting structure, a template you can copy, and the traps that turn a good process bad.
·5 min read · #devops#postmortem#incident-response
CI/CD Pipeline Design Fundamentals
How to design a CI/CD pipeline that stays fast, reliable, and reversible: stages, caching, parallelism, environments, and rollback strategies that scale with the team.
·5 min read · #ci-cd#devops#github-actions
Chaos Engineering Introduction for DevOps Teams
An introduction to chaos engineering: hypothesis-driven failure injection that finds weaknesses before customers do.
·4 min read · #devops#chaos-engineering#resilience
Feature Flags Best Practices for DevOps Teams
Feature flags decouple deploy from release. Learn flag types, rollout strategies, and how to keep your codebase from drowning in stale toggles.
·5 min read · #devops#feature-flags#release-engineering
DevOps Incident Response Playbook
A practical playbook for running production incidents: roles, comms, mitigation order, and the postmortem that turns pain into improvement.
·4 min read · #devops#sre#incident-response
DevOps Monitoring with Prometheus and Grafana
A practical tour of monitoring services with Prometheus for metrics collection and Grafana for dashboards, alerts, and SLO tracking.
·4 min read · #devops#prometheus#grafana
DevOps Observability Stack Overview
A tour of the modern observability stack: metrics, logs, traces, and events. Learn how the pillars fit together and how to choose tooling without drowning in dashboards.
·4 min read · #devops#observability#metrics
Runbook Best Practices for DevOps
How to write runbooks that on-call engineers actually use at 3am. Covers structure, tone, automation hand-offs, and how to keep runbooks alive instead of letting them rot.
·5 min read · #devops#runbooks#on-call
DevOps SLO, SLI, and Error Budgets Explained
Service Level Indicators, Objectives, and error budgets demystified: how to pick the right metric, set a target, and use the budget as a decision tool.
·4 min read · #devops#sre#slo
Docker Multi-stage Builds Explained
How Docker multi-stage builds work, why they shrink images dramatically, and patterns for Python, Node, and Go services that need a clean runtime layer.
·5 min read · #docker#containers#ci-cd
Kubernetes Pods vs Deployments
How Pods, ReplicaSets, and Deployments relate, why you almost never create Pods directly, and how rolling updates and rollbacks actually happen.
·5 min read · #kubernetes#containers#devops
Terraform State Management Basics
Why Terraform state exists, how it maps configuration to real infrastructure, and how to set up remote backends, locking, and workspaces without losing your mind.
·5 min read · #terraform#iac#devops
Docker Compose Network Aliases Tutorial
Network aliases let containers reach each other under multiple names. Learn how aliases work in Compose, when to use them, and the gotchas to avoid.
·5 min read · #docker#docker-compose#networking
Docker Compose vs Kubernetes: When to Use Which
A pragmatic comparison of Docker Compose and Kubernetes covering scope, operational cost, and the signals that tell you it is time to graduate.
·4 min read · #docker#kubernetes#compose
Docker Healthchecks and Restart Policies Explained
Healthchecks tell Docker if a container is alive. Restart policies tell it what to do when it is not. Together they keep your services running.
·5 min read · #docker#devops#containers
Git Large File Storage (LFS) Tutorial
Set up Git LFS to version large binaries like images, models, and datasets without bloating your repository, including tracking, migration, and CI tips.
·4 min read · #git#git-lfs#binaries
Maven vs Gradle: Choosing a Build Tool for Java Projects
An honest comparison of Maven and Gradle. Understand their philosophies, performance, ecosystem, and how to choose the right build tool for your Java project.
·4 min read · #java#maven#gradle
Kubernetes Init Containers: A Practical Tutorial
Learn how Kubernetes init containers work, when to use them for setup tasks, and how to build robust pod initialization pipelines with real YAML examples.
·4 min read · #kubernetes#k8s#init-containers
Kubernetes Readiness vs Liveness Probes: A Practical Guide
Understand the difference between readiness and liveness probes in Kubernetes, when to use each, and how to configure them safely in production workloads.
·4 min read · #kubernetes#k8s#probes
Kubernetes Secrets: Best Practices for Production
Practical patterns for managing Kubernetes Secrets safely: encryption at rest, external secret stores, RBAC scoping, rotation, and avoiding common leaks.
·4 min read · #kubernetes#k8s#secrets
AWS IAM Roles and Policies: A Practical Tutorial
Learn how AWS IAM roles, trust policies, and permissions policies work together. Build a small role from scratch and assume it from another account.
·5 min read · #devops#aws#iam
Docker Compose Tutorial: Run Multi-Service Apps Locally
A practical Docker Compose tutorial. Define services, networks, and volumes in one YAML file, then start and stop a full local stack with a single command.
·4 min read · #devops#docker#compose
Docker Volumes Explained: Persisting Data the Right Way
Learn how Docker volumes keep your data alive between container restarts. Compare bind mounts, named volumes, and tmpfs, and see when to use each in real projects.
·4 min read · #devops#docker#volumes
Git Branching Strategies: Trunk vs Gitflow vs GitHub Flow
Compare trunk-based development, gitflow, and GitHub flow. Learn when each strategy fits, how they affect release cadence, and which commands to actually use day to day.
·5 min read · #devops#git#branching
GitHub Actions Secrets Management: A Practical Guide
Learn how to store, scope, and rotate secrets in GitHub Actions. Cover repository, environment, and organization secrets, plus OIDC for cloud access without static keys.
·5 min read · #devops#github-actions#secrets
Kubernetes Deployments vs StatefulSets: When to Use Each
Understand the real differences between Deployments and StatefulSets in Kubernetes. Learn which workloads belong in each, with concrete YAML and rollout behavior.
·4 min read · #devops#kubernetes#workloads
Kubernetes Services Explained: ClusterIP, NodePort, LoadBalancer
A clear guide to Kubernetes Services. Learn what ClusterIP, NodePort, LoadBalancer, and headless Services do, and when to use each in real clusters.
·4 min read · #devops#kubernetes#networking
Linux systemd Services: A Practical Guide
Write, enable, and debug systemd services on Linux. Learn unit files, dependencies, restart policies, and journalctl logs through a small hands-on example.
·5 min read · #devops#linux#systemd
SSH Keys and Secure Server Access
Generate strong SSH keys, configure your ~/.ssh/config, lock down sshd, and use agent forwarding and jump hosts to access servers safely without passwords.
·5 min read · #devops#ssh#security
DevOps Engineer Roadmap: Tools, Skills, and Order of Learning
A practical roadmap to becoming a DevOps Engineer. Linux, scripting, Docker, CI/CD, Kubernetes, Terraform, AWS, and observability, in the right order.
·5 min read · #career#roadmap#devops
ArgoCD and GitOps for Kubernetes
ArgoCD makes Git the source of truth for your Kubernetes clusters. Learn the GitOps pattern, the App-of-Apps model, and sync strategies that work.
·6 min read · #argocd#gitops#intermediate
GitHub Actions Matrix Builds: Test Across Versions
Use the matrix strategy in GitHub Actions to test across Node versions, operating systems, and dependency sets without duplicating workflow files.
·5 min read · #github-actions#ci#intermediate
NGINX as a Reverse Proxy: Configuration That Works
Set up NGINX as a reverse proxy for Node, Python, or container backends with the right headers, timeouts, and TLS configuration for production.
·6 min read · #nginx#networking#intermediate
Terraform Basics: HCL, Providers, and Your First Resource
Learn the foundations of Terraform: writing HCL, configuring providers, managing state, and creating your first cloud resource the right way.
·5 min read · #terraform#iac#intermediate