Master DevOps Tools with Real Practice
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Progressive lessons that build on each other. Start simple, master the advanced
Day 25: Zero-Downtime Deploys with Rolling Update Strategy
Rolling updates let you deploy new versions with minimal or zero downtime when properly configured.
# Deployment with rolling update strategy
apiVersion: apps/v1
kind: Deployment
metadata:
name: web-app
spec:
replicas: 4
strategy:
type: RollingUpdate
rollingUpdate:
maxSurge: 1 # max 1 extra pod during update
maxUnavailable: 0 # never reduce below desired count
template:
spec:
containers:
- name: web
image: myapp:v2
readinessProbe:
httpGet:
path: /ready
port: 8080
# Watch the rollout in real time
kubectl rollout status deployment/web-app
# Undo a bad deployment instantly
kubectl rollout undo deployment/web-appQuick Start
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Git Fundamentals
14 lessons available
Master version control with Git. Learn branching, merging, and collaboration workflows.
Start Git TrackDocker Essentials
11 lessons available
Learn containerization with Docker. Build, ship, and run applications in isolated containers.
Start Docker TrackKubernetes
15 lessons available
Master container orchestration. Deploy, scale, and manage containerized applications.
Start Kubernetes TrackLinux & Bash
8 lessons available
Master the command line with Linux and Bash. Learn file operations, text processing, and scripting.
Start Linux TrackCI/CD
16 lessons available
Automate build, test, and deployment pipelines. Learn GitHub Actions and deployment strategies.
Start CI/CD TrackBuild Real-World DevOps Pipelines
Apply everything you've learned by building complete end-to-end projects. Integrate multiple tools and see the full DevOps workflow in action.
Full CI/CD Pipeline Project
Build a complete production-ready pipeline from scratch. Take a Node.js app from code commit through automated testing, Docker containerization, and Kubernetes deployment using GitHub Actions.
Prerequisites:
More projects coming soon: Terraform Infrastructure, Monitoring Stack, Multi-Cloud Deployment...
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