Stencil.js Backup Recovery
Stencil.js Web Components Backup Recovery Version Control npm Registry CI/CD Rollback Disaster Recovery RPO RTO Semantic Versioning
| Asset | Backup Method | Frequency | Storage | Recovery Time |
|---|---|---|---|---|
| Source Code | Git (Distributed) | ทุก Commit | GitHub/GitLab + Local | ทันที (git clone) |
| Build Artifacts | npm Registry / Artifactory | ทุก Release | npm + S3 Backup | 5-10 นาที |
| CI/CD Config | Git (IaC) | ทุก Change | Git Repository | 10-30 นาที |
| Documentation | Git + Static Site | ทุก Release | Git + CDN | 5 นาที |
| Environment Config | Secret Manager | ทุก Change | AWS SM / Vault | 5 นาที |
Version Control Strategy
# === Stencil.js Version Control & Release ===
# Semantic Versioning for Component Library
# MAJOR.MINOR.PATCH
# 1.0.0 → 1.0.1 (Bug fix, backward compatible)
# 1.0.0 → 1.1.0 (New feature, backward compatible)
# 1.0.0 → 2.0.0 (Breaking change)
# Git Branching Strategy
# main → Production releases (tagged)
# develop → Integration branch
# feature/* → New components/features
# hotfix/* → Emergency fixes
# release/* → Release preparation
# Release Process
# 1. Feature complete → merge to develop
# 2. Create release/1.2.0 branch from develop
# 3. Final testing, update CHANGELOG
# 4. Merge to main, tag v1.2.0
# 5. npm publish
# 6. Merge back to develop
from dataclasses import dataclass
@dataclass
class ReleaseStep:
step: int
action: str
command: str
verify: str
rollback: str
release_steps = [
ReleaseStep(1, "Create Release Branch",
"git checkout -b release/1.2.0 develop",
"git branch → release/1.2.0",
"git branch -D release/1.2.0"),
ReleaseStep(2, "Update Version",
"npm version minor → 1.2.0",
"cat package.json | grep version",
"git revert HEAD"),
ReleaseStep(3, "Build & Test",
"npm run build && npm test",
"All tests pass, dist/ generated",
"Fix bugs, rebuild"),
ReleaseStep(4, "Merge to Main & Tag",
"git checkout main && git merge release/1.2.0 && git tag v1.2.0",
"git log --oneline -5 && git tag -l",
"git revert HEAD && git tag -d v1.2.0"),
ReleaseStep(5, "Publish to npm",
"npm publish --access public",
"npm view @myorg/components version",
"npm unpublish @myorg/components@1.2.0 (within 72h)"),
ReleaseStep(6, "Deploy to CDN",
"aws s3 sync dist/ s3://cdn/components/1.2.0/",
"curl https://cdn.example.com/components/1.2.0/",
"Update CDN pointer to 1.1.0"),
]
print("=== Release Steps ===")
for s in release_steps:
print(f"\n Step {s.step}: {s.action}")
print(f" Command: {s.command}")
print(f" Verify: {s.verify}")
print(f" Rollback: {s.rollback}")
Rollback Strategies
# === Rollback Strategies ===
@dataclass
class RollbackStrategy:
strategy: str
when: str
steps: str
time: str
risk: str
strategies = [
RollbackStrategy("npm Version Rollback",
"Component ใหม่มี Bug หลัง Publish",
"1. npm unpublish (< 72h) หรือ npm deprecate\n"
"2. Fix bug → npm publish patch version\n"
"3. แจ้ง Consumer อัพเดท",
"10-30 นาที",
"Consumer ที่ Install แล้วยังได้ Version เก่า"),
RollbackStrategy("Git Revert",
"Commit ที่ Merge แล้วมีปัญหา",
"1. git revert \n"
"2. Push revert commit\n"
"3. CI/CD auto-build & test",
"5-10 นาที",
"History ยังอยู่ ปลอดภัย"),
RollbackStrategy("CDN Version Switch",
"Component บน CDN มีปัญหา",
"1. อัพเดท CDN pointer จาก /1.2.0/ → /1.1.0/\n"
"2. Invalidate CDN Cache\n"
"3. ยืนยันว่า Consumer ได้ Version เก่า",
"5 นาที",
"Cache Propagation อาจใช้เวลา"),
RollbackStrategy("Feature Flag",
"Feature ใหม่ใน Component มีปัญหา",
"1. ปิด Feature Flag → Feature หายทันที\n"
"2. ไม่ต้อง Redeploy\n"
"3. Fix bug → เปิด Flag กลับ",
"ทันที (< 1 นาที)",
"ต้องออกแบบ Feature Flag ตั้งแต่แรก"),
RollbackStrategy("Blue-Green Deploy",
"Deployment ใหม่ทั้งชุดมีปัญหา",
"1. สลับ Traffic จาก Green (new) → Blue (old)\n"
"2. Green ยังอยู่ Debug ได้\n"
"3. Fix → Deploy Green ใหม่ → สลับกลับ",
"1-5 นาที",
"ต้องมี Infrastructure 2 ชุด"),
]
print("=== Rollback Strategies ===")
for s in strategies:
print(f"\n [{s.strategy}] When: {s.when}")
print(f" Steps: {s.steps}")
print(f" Time: {s.time}")
print(f" Risk: {s.risk}")
Disaster Recovery
# === Disaster Recovery Plan ===
@dataclass
class DRScenario:
scenario: str
impact: str
rpo: str
rto: str
recovery: str
scenarios = [
DRScenario("npm Registry Down",
"ไม่สามารถ Install Component ใหม่",
"0 (ไม่มีข้อมูลหาย)",
"10 นาที",
"ใช้ Local npm Cache, Verdaccio Mirror, หรือ Install จาก Git"),
DRScenario("Git Server Down",
"ไม่สามารถ Push/Pull Code",
"0 (ทุกู้คืนมี Local Clone)",
"ทันที (Work Local)",
"ทำงานต่อ Local รอ Server กลับมา Push"),
DRScenario("CI/CD Pipeline Down",
"ไม่สามารถ Build/Test/Deploy อัตโนมัติ",
"0",
"30 นาที",
"Build Local: npm run build, Test: npm test, Publish Manual"),
DRScenario("CDN Down",
"Consumer ไม่สามารถโหลด Component",
"0",
"5-30 นาที",
"สลับ CDN Provider, Self-host, หรือ npm Install แทน CDN"),
DRScenario("Critical Bug in Production",
"Component พังใน Production ของ Consumer",
"ไม่เกิน 1 ชั่วโมง",
"30 นาที",
"Rollback Version + Hotfix Branch + Emergency Release"),
]
print("=== DR Scenarios ===")
for d in scenarios:
print(f"\n [{d.scenario}]")
print(f" Impact: {d.impact}")
print(f" RPO: {d.rpo} | RTO: {d.rto}")
print(f" Recovery: {d.recovery}")
เคล็ดลับ
- SemVer: ใช้ Semantic Versioning ทุก Release ไม่ Break โดยไม่แจ้ง
- Tag: Tag ทุก Release ใน Git ย้อนกลับง่าย
- CHANGELOG: เขียน CHANGELOG ทุก Release บอก Consumer ว่าเปลี่ยนอะไร
- Cache: ตั้ง Local npm Cache (Verdaccio) ป้องกัน Registry Down
- DR Test: ทดสอบ Disaster Recovery ทุก 6 เดือน
Stencil.js คืออะไร
Compiler Web Components TypeScript JSX Custom Elements Lazy Loading SSR Ionic Shoelace Design System Component Library ใช้ได้ทุก Framework
Backup Strategy ทำอย่างไร
Git Source Code npm Registry Build Artifacts CI/CD Config IaC Documentation Storybook Secret Manager Environment Variables Semantic Versioning Tag
Rollback ทำอย่างไร
npm unpublish deprecate git revert CDN Version Switch Feature Flag Blue-Green Deploy Canary Rollback Patch Version Hotfix Emergency Release
Disaster Recovery Plan คืออะไร
RPO RTO npm Down Local Cache Git Down Local Clone CI/CD Down Build Local CDN Down Switch Provider Critical Bug Rollback Hotfix ทดสอบ 6 เดือน
สรุป
Stencil.js Backup Recovery Git SemVer npm Registry CI/CD CDN Rollback Feature Flag Blue-Green DR Plan RPO RTO Hotfix CHANGELOG
