---
id: wiki-20260508-ci-cd-pipeline-redir
title: CI/CD Pipeline
category: 10_Wiki/Topics
status: verified
canonical_id: self
aliases: [CI/CD, CI CD Pipeline, 파이프라인, Continuous Delivery]
duplicate_of: none
source_trust_level: A
confidence_score: 0.92
verification_status: applied
tags: [cicd, devops, automation, deployment]
raw_sources: []
last_reinforced: 2026-05-10
github_commit: pending
tech_stack:
  language: yaml
  framework: GitHub Actions, GitLab CI, ArgoCD
---

# CI/CD Pipeline

## 매 한 줄
> **"매 commit 의 production 의 automated path"**. 매 Continuous Integration (build+test on every push) + Continuous Delivery/Deployment (artifact → staging → prod 의 자동) 의 결합 — 매 2026 의 GitHub Actions 의 dominant 의 + GitLab CI / Jenkins / CircleCI / ArgoCD (GitOps) 의 ecosystem. 매 trunk-based dev + feature flag 의 pair.

## 매 핵심

### 매 Stages
1. **Source**: trigger (push, PR, schedule, manual).
2. **Build**: compile, package (Docker image, JAR, npm).
3. **Test**: unit → integration → e2e → security scan.
4. **Artifact**: registry push (ECR, GHCR, Artifactory).
5. **Deploy**: staging → smoke test → prod (canary / blue-green / rolling).
6. **Observe**: metrics, alerts, rollback trigger.

### 매 CI vs CD
- **CI**: 매 main branch 의 always-green — fast feedback (<10 min).
- **CD (delivery)**: 매 always-deployable artifact — manual prod gate.
- **CD (deployment)**: 매 fully automated — canary + auto-rollback.

### 매 응용
1. SaaS web app: GitHub Actions → Docker → ECS/K8s.
2. Mobile: Fastlane + TestFlight/Play Console.
3. Library: tag → npm/PyPI/Maven publish.
4. Infrastructure: Terraform plan/apply via CI.

## 💻 패턴

### GitHub Actions (Node + Docker)
```yaml
name: ci
on: { push: { branches: [main] }, pull_request: {} }
jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with: { node-version: 20, cache: pnpm }
      - run: pnpm install --frozen-lockfile
      - run: pnpm lint && pnpm test --coverage
      - uses: codecov/codecov-action@v4
  build-deploy:
    needs: test
    if: github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    permissions: { id-token: write, contents: read }
    steps:
      - uses: actions/checkout@v4
      - uses: aws-actions/configure-aws-credentials@v4
        with: { role-to-assume: arn:aws:iam::123:role/ci, aws-region: us-east-1 }
      - run: docker build -t $ECR/app:${{ github.sha }} . && docker push $ECR/app:${{ github.sha }}
      - run: aws ecs update-service --cluster prod --service app --force-new-deployment
```

### GitLab CI (matrix + cache)
```yaml
stages: [test, build, deploy]
test:
  stage: test
  image: node:20
  cache: { paths: [node_modules/] }
  script: [npm ci, npm test]
  parallel:
    matrix: [{ NODE_VERSION: ["18", "20", "22"] }]
```

### ArgoCD (GitOps)
```yaml
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata: { name: app, namespace: argocd }
spec:
  source: { repoURL: https://git.../infra, path: k8s/prod, targetRevision: HEAD }
  destination: { server: https://kubernetes.default.svc, namespace: prod }
  syncPolicy: { automated: { prune: true, selfHeal: true } }
```

### Canary deploy (Argo Rollouts)
```yaml
strategy:
  canary:
    steps: [{ setWeight: 10 }, { pause: { duration: 10m } }, { setWeight: 50 }, { pause: {} }]
    analysis: { templates: [{ templateName: success-rate }] }
```

## 매 결정 기준
| 상황 | Approach |
|---|---|
| GitHub-hosted repo | GitHub Actions |
| Self-hosted, full DevOps suite | GitLab CI |
| Java-heavy enterprise | Jenkins |
| K8s native, declarative | ArgoCD / Flux |
| Mobile | Fastlane + Bitrise |
| Monorepo | Nx Cloud / Turborepo Remote Cache |

**기본값**: GitHub Actions + Docker + ArgoCD (cloud-native) or ECS/Cloud Run (PaaS).

## 🔗 Graph
- 부모: [[DevOps]] · [[Software Delivery]]
- 변형: [[Continuous Integration (CI)]] · [[Continuous Delivery]] · [[GitOps]]
- 응용: [[Blue-Green Deployment]] · [[Canary Deployment]] · [[Feature Flag]]
- Adjacent: [[Docker]] · [[Kubernetes]] · [[Terraform]] · [[TeamCity]]

## 🤖 LLM 활용
**언제**: 매 workflow YAML 의 generation, matrix 의 expansion, action 의 lookup.
**언제 X**: 매 production 의 deploy script — 매 review + canary + rollback 의 always.

## ❌ 안티패턴
- **No rollback path**: 매 deploy 의 forward-only — 매 disaster.
- **Secrets in YAML**: 매 GitHub Secrets / OIDC 의 사용.
- **Slow CI** (>15 min): 매 dev 의 PR 의 stack — 매 cache + parallelize.
- **Deploy on every push**: 매 manual gate or canary 의 사용 — 매 prod 의 break.
- **No artifact pinning** (`:latest`): 매 reproducibility 의 lose.

## 🧪 검증 / 중복
- Verified (GitHub Actions docs, GitLab CI docs, ArgoCD docs).
- 신뢰도 A.

## 🕓 Changelog
| 날짜 | 변경 |
|---|---|
| 2026-05-08 | Phase 1 |
| 2026-05-10 | Manual cleanup — full CI/CD treatment with Actions/ArgoCD examples |
