What is a ConfigMap and Secret in Kubernetes? Explained Simply (2026)
ConfigMaps and Secrets separate configuration from code in Kubernetes. Here's what they are, how they work, and when to use each one — explained simply.
D
4 min readRead
All Articles
The DevOps Knowledge Base
In-depth guides on Docker, Kubernetes, AWS, CI/CD, AI/ML, and modern infrastructure — written by engineers, for engineers.
All (801)kubernetes(387)cicd(163)mlops(156)troubleshooting(155)beginners(138)aws(136)platform-engineering(117)career(114)ai(105)devops(105)monitoring(99)security(87)observability(84)networking(66)docker(60)terraform(50)gitops(46)cloud(44)github-actions(41)finops(34)comparison(27)linux(24)helm(18)argocd(18)python(18)eks(14)llmops(8)containers(5)storage(3)prometheus(2)bash(2)ansible(1)tools(1)
Showing 622–630 of 801 articles
Page 70 of 89
Build a Slack ChatOps Bot for Kubernetes Alerts Using Claude API (2026)
Build a Slack bot that receives Kubernetes Alertmanager webhooks, calls Claude AI to explain the alert and suggest fixes, then posts actionable runbook steps in Slack.
D
5 min readRead
containerd vs Docker vs CRI-O — Which Container Runtime Should You Use? (2026)
Kubernetes deprecated Docker as a runtime in 2020. In 2026, containerd and CRI-O run most production clusters. Here's the difference and which one to pick.
D
4 min readRead
How to Transition from Sysadmin to DevOps Engineer in 2026
You're a sysadmin with Linux, scripting, and networking skills. Here's exactly how to make the DevOps jump — what to learn, what to skip, and how to get your first DevOps title.
D
4 min readRead
Argo Rollouts vs Flagger — Which Canary Deployment Tool Should You Use? (2026)
Both Argo Rollouts and Flagger do progressive delivery on Kubernetes. Here's a detailed comparison of features, architecture, and when to pick each.
D
4 min readRead
How to Negotiate Your DevOps Salary and Get Paid What You're Worth (2026)
Most DevOps engineers leave 20-40% salary on the table by not negotiating. Here's the exact playbook — what to say, when to say it, and how to counter lowball offers.
D
4 min readRead
Kubernetes PVC Stuck in Pending — Every Cause and Fix (2026)
Your PersistentVolumeClaim is stuck in Pending and your pod won't start. Here's every reason this happens and exactly how to fix it.
D
4 min readRead
Run vLLM on Kubernetes for Fast LLM Inference (2026)
vLLM is the fastest open-source LLM inference engine. Here's how to deploy it on Kubernetes with GPU nodes, expose an OpenAI-compatible API, and scale it.
D
4 min readRead
What is a Kubernetes Ingress? Explained Simply (2026)
Kubernetes Ingress routes external HTTP/HTTPS traffic to your services. Here's what it is, how it works, and how to set one up — explained simply.
D
4 min readRead