google-agents-cli-scaffold
Project scaffolding, deployment configuration, and CI/CD setup for Google ADK agents.
deployment-strategy
Deployment Strategy Agent. Feature Flag, Canary/Blue-Green 배포, 롤백 전략을 담당합니다. 안전한 배포와 점진적 롤아웃을 관리합니다.
Full skill instructions
안전하고 신뢰할 수 있는 배포 전략을 수립하고 실행합니다.
┌─────────────────────────────────────────────────────────────────┐
│ 배포 전략 비교 │
├─────────────────────────────────────────────────────────────────┤
│ │
│ Big Bang (권장하지 않음) │
│ ┌──────────┐ ┌──────────┐ │
│ │ v1.0 │ ──► │ v2.0 │ 한 번에 100% 전환 │
│ └──────────┘ └──────────┘ 리스크: 높음 │
│ │
│ Blue-Green │
│ ┌──────────┐ ┌──────────┐ │
│ │ Blue │ │ Green │ 두 환경 유지 │
│ │ (v1.0) │ ──► │ (v2.0) │ 트래픽 즉시 전환 │
│ └──────────┘ └──────────┘ 롤백: 즉시 가능 │
│ │
│ Canary │
│ ┌──────────────────────────────────────────────────────┐ │
│ │ v1.0: 100% ──► 90% ──► 50% ──► 0% │ │
│ │ v2.0: 0% ──► 10% ──► 50% ──► 100% │ │
│ └──────────────────────────────────────────────────────┘ │
│ 점진적 롤아웃, 리스크 최소화 │
│ │
│ Feature Flag │
│ ┌──────────────────────────────────────────────────────┐ │
│ │ 코드는 배포됨, 기능은 비활성 │ │
│ │ Flag ON: 특정 사용자/그룹만 활성화 │ │
│ │ 문제 시 Flag OFF로 즉시 비활성화 │ │
│ └──────────────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────┘
// src/lib/feature-flags.ts
import * as LaunchDarkly from 'launchdarkly-js-client-sdk';
const client = LaunchDarkly.initialize(
process.env.LAUNCHDARKLY_CLIENT_ID!,
{
key: 'user-id',
email: '[email protected]',
custom: {
plan: 'premium',
beta: true,
},
}
);
export const isFeatureEnabled = async (flagKey: string): Promise<boolean> => {
await client.waitForInitialization();
return client.variation(flagKey, false);
};
// 사용 예시
if (await isFeatureEnabled('new-checkout-flow')) {
// 새 체크아웃 플로우
} else {
// 기존 체크아웃 플로우
}
// src/lib/feature-flags.ts
interface FeatureFlag {
key: string;
enabled: boolean;
percentage: number;
allowedUsers: string[];
allowedGroups: string[];
killSwitch: boolean;
}
const flags: Record<string, FeatureFlag> = {
'new-feature': {
key: 'new-feature',
enabled: true,
percentage: 10, // 10% 사용자에게 노출
allowedUsers: ['admin'], // 특정 사용자는 항상 활성화
allowedGroups: ['beta'], // 베타 그룹은 항상 활성화
killSwitch: false, // 긴급 비활성화 스위치
},
};
export const isEnabled = (
flagKey: string,
userId: string,
userGroups: string[] = []
): boolean => {
const flag = flags[flagKey];
if (!flag || !flag.enabled || flag.killSwitch) {
return false;
}
// 특정 사용자 체크
if (flag.allowedUsers.includes(userId)) {
return true;
}
// 특정 그룹 체크
if (userGroups.some(g => flag.allowedGroups.includes(g))) {
return true;
}
// 퍼센티지 기반 롤아웃
const hash = hashUserId(userId);
return hash < flag.percentage;
};
const hashUserId = (userId: string): number => {
let hash = 0;
for (let i = 0; i < userId.length; i++) {
hash = ((hash << 5) - hash) + userId.charCodeAt(i);
hash |= 0;
}
return Math.abs(hash) % 100;
};
// src/hooks/useFeatureFlag.ts
import { useEffect, useState } from 'react';
import { isEnabled } from '@/lib/feature-flags';
import { useUser } from '@/hooks/useUser';
export const useFeatureFlag = (flagKey: string): boolean => {
const [enabled, setEnabled] = useState(false);
const { user } = useUser();
useEffect(() => {
if (user) {
setEnabled(isEnabled(flagKey, user.id, user.groups));
}
}, [flagKey, user]);
return enabled;
};
// 사용 예시
const MyComponent = () => {
const showNewFeature = useFeatureFlag('new-feature');
return showNewFeature ? <NewFeature /> : <OldFeature />;
};
# canary-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: app-canary
spec:
replicas: 1 # 전체의 10%
selector:
matchLabels:
app: myapp
version: canary
template:
metadata:
labels:
app: myapp
version: canary
spec:
containers:
- name: app
image: myapp:v2.0
ports:
- containerPort: 3000
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: app-stable
spec:
replicas: 9 # 전체의 90%
selector:
matchLabels:
app: myapp
version: stable
template:
metadata:
labels:
app: myapp
version: stable
spec:
containers:
- name: app
image: myapp:v1.0
ports:
- containerPort: 3000
---
apiVersion: v1
kind: Service
metadata:
name: app-service
spec:
selector:
app: myapp # 두 버전 모두 선택
ports:
- port: 80
targetPort: 3000
#!/bin/bash
# canary-rollout.sh
CANARY_PERCENTAGE=$1
TOTAL_REPLICAS=10
CANARY_REPLICAS=$((TOTAL_REPLICAS * CANARY_PERCENTAGE / 100))
STABLE_REPLICAS=$((TOTAL_REPLICAS - CANARY_REPLICAS))
echo "Rolling out canary: $CANARY_PERCENTAGE%"
echo "Canary replicas: $CANARY_REPLICAS"
echo "Stable replicas: $STABLE_REPLICAS"
# Canary 스케일
kubectl scale deployment app-canary --replicas=$CANARY_REPLICAS
# Stable 스케일
kubectl scale deployment app-stable --replicas=$STABLE_REPLICAS
# 상태 확인
kubectl rollout status deployment/app-canary
kubectl rollout status deployment/app-stable
## Canary 배포 체크리스트
### Stage 1: 10% (1시간)
- [ ] Canary 배포 완료
- [ ] 에러율 < 1%
- [ ] 응답 시간 정상
- [ ] 로그 확인
### Stage 2: 25% (2시간)
- [ ] 트래픽 증가
- [ ] 메트릭 정상
- [ ] 사용자 피드백 없음
### Stage 3: 50% (4시간)
- [ ] 절반 트래픽
- [ ] 성능 저하 없음
- [ ] DB 부하 정상
### Stage 4: 100% (전체 롤아웃)
- [ ] 모든 트래픽 전환
- [ ] 이전 버전 제거
- [ ] 문서 업데이트
# blue-green.yaml
# Blue (현재 프로덕션)
apiVersion: apps/v1
kind: Deployment
metadata:
name: app-blue
spec:
replicas: 3
selector:
matchLabels:
app: myapp
color: blue
template:
metadata:
labels:
app: myapp
color: blue
spec:
containers:
- name: app
image: myapp:v1.0
---
# Green (새 버전)
apiVersion: apps/v1
kind: Deployment
metadata:
name: app-green
spec:
replicas: 3
selector:
matchLabels:
app: myapp
color: green
template:
metadata:
labels:
app: myapp
color: green
spec:
containers:
- name: app
image: myapp:v2.0
---
# Service (트래픽 전환용)
apiVersion: v1
kind: Service
metadata:
name: app-service
spec:
selector:
app: myapp
color: blue # green으로 변경하여 전환
ports:
- port: 80
targetPort: 3000
#!/bin/bash
# switch-traffic.sh
CURRENT_COLOR=$(kubectl get svc app-service -o jsonpath='{.spec.selector.color}')
if [ "$CURRENT_COLOR" == "blue" ]; then
NEW_COLOR="green"
else
NEW_COLOR="blue"
fi
echo "Switching from $CURRENT_COLOR to $NEW_COLOR"
# 트래픽 전환
kubectl patch svc app-service -p '{"spec":{"selector":{"color":"'$NEW_COLOR'"}}}'
# 확인
kubectl get svc app-service -o jsonpath='{.spec.selector.color}'
# rollback-conditions.yaml
rollback:
automatic: true
conditions:
- metric: error_rate
threshold: 5%
duration: 5m
- metric: latency_p99
threshold: 2000ms
duration: 5m
- metric: cpu_usage
threshold: 90%
duration: 10m
actions:
- type: alert
channels: [slack, pagerduty]
- type: rollback
target: previous_stable
- type: scale_down
target: canary
replicas: 0
#!/bin/bash
# rollback.sh
echo "Starting rollback..."
# Kubernetes 롤백
kubectl rollout undo deployment/app
# 또는 특정 버전으로
kubectl rollout undo deployment/app --to-revision=2
# Feature Flag 비활성화
curl -X PATCH https://api.launchdarkly.com/api/v2/flags/project/flag-key \
-H "Authorization: api-key" \
-H "Content-Type: application/json" \
-d '{"patch":[{"op":"replace","path":"/environments/production/on","value":false}]}'
# 상태 확인
kubectl rollout status deployment/app
echo "Rollback completed"
## 배포 전 체크리스트
### 코드 준비
- [ ] 모든 테스트 통과
- [ ] 코드 리뷰 완료
- [ ] 보안 스캔 통과
- [ ] 문서 업데이트
### 환경 준비
- [ ] 환경 변수 설정
- [ ] Secret 업데이트
- [ ] DB 마이그레이션 준비
- [ ] Feature Flag 설정
### 배포 준비
- [ ] 롤백 계획 수립
- [ ] 모니터링 대시보드 준비
- [ ] 알림 채널 확인
- [ ] 온콜 담당자 확인
### 배포 후 체크리스트
- [ ] 헬스체크 통과
- [ ] 에러율 정상
- [ ] 성능 정상
- [ ] 로그 확인
## 배포 모니터링 지표
### 핵심 지표
| 지표 | 임계값 | 현재 | 상태 |
|------|--------|------|------|
| Error Rate | < 1% | 0.2% | ✅ |
| P99 Latency | < 500ms | 320ms | ✅ |
| CPU Usage | < 80% | 45% | ✅ |
| Memory Usage | < 80% | 62% | ✅ |
### 비즈니스 지표
| 지표 | 기준 | 현재 | 변화 |
|------|------|------|------|
| 전환율 | 3.2% | 3.1% | -0.1% |
| 이탈률 | 45% | 46% | +1% |
| 페이지뷰 | 10K/h | 9.8K/h | -2% |
docs/features/<기능명>/implementation/deployment-plan.mddocs/features/<기능명>/implementation/rollback-plan.mddocs/features/<기능명>/gates/gate-6-checklist.mdProject scaffolding, deployment configuration, and CI/CD setup for Google ADK agents.
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