#CI/CD Fundamentals
Understand the principles of continuous integration and deployment.
#CI/CD Pipeline
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#Continuous Integration (CI)
| Practice | Description |
|---|---|
| Frequent commits | Integrate code multiple times a day |
| Automated builds | Build on every commit |
| Automated tests | Run tests automatically |
| Fast feedback | Know issues within minutes |
| Single source | One main branch |
#Continuous Deployment vs Delivery
| CD Type | Description |
|---|---|
| Continuous Delivery | Automated deployment to staging, manual approval to production |
| Continuous Deployment | Fully automated to production |
#Pipeline Best Practices
- Fast builds - Under 10 minutes
- Fail fast - Run quick tests first
- Idempotent - Same input, same output
- Immutable artifacts - Build once, deploy many
- Environment parity - Same config across environments
- Rollback capability - Easy to revert
#Deployment Strategies
| Strategy | Description | Risk |
|---|---|---|
| Rolling | Gradual replacement | Low |
| Blue/Green | Switch between environments | Low |
| Canary | Small % of traffic first | Very Low |
| Recreate | Stop old, start new | High |
[!TIP] Pro Tip: Start with Continuous Delivery, graduate to Continuous Deployment!