# GitOps & ArgoCD (DevOps) > GitOps 원칙, ArgoCD 아키텍처, 애플리케이션, 동기화 전략, 롤백, 동기화 실패 문제 해결 - 22 면접 질문 - Senior - [면접 질문: DevOps](https://sharpskill.dev/ko/technologies/devops/interview-questions.md) ## 1. GitOps의 기본 원칙은 무엇입니까? **답변** GitOps의 기본 원칙은 Git을 인프라와 애플리케이션의 단일 진실 공급원(single source of truth)으로 사용하는 것입니다. 모든 인프라 변경은 Git 커밋을 통해 이루어지므로 감사 가능성, 버전 관리 및 손쉬운 롤백을 제공합니다. ArgoCD와 같은 GitOps 도구는 클러스터 상태를 Git에 선언된 상태와 자동으로 동기화합니다. ## 2. ArgoCD의 주요 아키텍처는 무엇입니까? **답변** ArgoCD는 여러 컴포넌트를 가진 풀 기반 아키텍처를 사용합니다: Application Controller(상태 동기화), Repo Server(Git에서 매니페스트 가져오기), API Server(REST API 노출), Redis(캐싱). 이 풀 아키텍처는 클러스터가 CI/CD에서 푸시 배포를 받는 대신 Git에서 변경 사항을 가져올 수 있도록 하여 보안과 안정성을 향상시킵니다. ## 3. ArgoCD Application과 ApplicationSet의 차이점은 무엇입니까? **답변** ArgoCD Application은 특정 클러스터와 네임스페이스에 단일 애플리케이션을 배포합니다. ApplicationSet은 템플릿에서 여러 Application을 자동으로 생성하므로 동일한 기본 구성으로 여러 환경(dev, staging, prod) 또는 여러 클러스터를 관리하는 데 이상적입니다. ApplicationSet은 생성기(Git, List, Cluster, Matrix)를 사용하여 동적으로 Application을 생성합니다. ## 19개 추가 질문 이용 가능 - ArgoCD에서 OutOfSync 상태는 무엇을 의미합니까? - GitOps 맥락에서 Continuous Delivery (CD)와 Continuous Deployment의 차이점은 무엇입니까? 무료로 가입하기: https://sharpskill.dev/ko/login ## 기타 DevOps 면접 주제 - [버전 관리 & Git](https://sharpskill.dev/ko/technologies/devops/interview-questions/version-control-git.md): 20개 질문, Junior - [Linux 기초](https://sharpskill.dev/ko/technologies/devops/interview-questions/linux-fundamentals.md): 22개 질문, Junior - [Shell Scripting & Bash](https://sharpskill.dev/ko/technologies/devops/interview-questions/shell-scripting-bash.md): 20개 질문, Mid-Level - [네트워킹 기초](https://sharpskill.dev/ko/technologies/devops/interview-questions/networking-basics.md): 22개 질문, Junior - [Docker 기초](https://sharpskill.dev/ko/technologies/devops/interview-questions/docker-fundamentals.md): 24개 질문, Junior - [CI/CD 기초](https://sharpskill.dev/ko/technologies/devops/interview-questions/ci-cd-fundamentals.md): 18개 질문, Junior - [GitHub Actions](https://sharpskill.dev/ko/technologies/devops/interview-questions/github-actions.md): 22개 질문, Mid-Level - [GitLab CI/CD](https://sharpskill.dev/ko/technologies/devops/interview-questions/gitlab-ci.md): 22개 질문, Mid-Level - [Jenkins](https://sharpskill.dev/ko/technologies/devops/interview-questions/jenkins.md): 22개 질문, Mid-Level - [Kubernetes 기초](https://sharpskill.dev/ko/technologies/devops/interview-questions/kubernetes-basics.md): 26개 질문, Mid-Level - [Kubernetes 네트워킹](https://sharpskill.dev/ko/technologies/devops/interview-questions/kubernetes-networking.md): 24개 질문, Mid-Level - [Kubernetes 고급](https://sharpskill.dev/ko/technologies/devops/interview-questions/kubernetes-advanced.md): 24개 질문, Mid-Level - [Ingress & API Gateway](https://sharpskill.dev/ko/technologies/devops/interview-questions/ingress-api-gateway.md): 20개 질문, Mid-Level - [Terraform 기초](https://sharpskill.dev/ko/technologies/devops/interview-questions/terraform-basics.md): 22개 질문, Mid-Level - [Terraform 고급](https://sharpskill.dev/ko/technologies/devops/interview-questions/terraform-advanced.md): 22개 질문, Mid-Level - [Ansible & Configuration Management](https://sharpskill.dev/ko/technologies/devops/interview-questions/ansible-configuration.md): 20개 질문, Mid-Level - [AWS 핵심](https://sharpskill.dev/ko/technologies/devops/interview-questions/aws-essentials.md): 26개 질문, Mid-Level - [Azure 기초](https://sharpskill.dev/ko/technologies/devops/interview-questions/azure-fundamentals.md): 22개 질문, Mid-Level - [GCP 기초](https://sharpskill.dev/ko/technologies/devops/interview-questions/gcp-fundamentals.md): 22개 질문, Mid-Level - [모니터링과 Prometheus](https://sharpskill.dev/ko/technologies/devops/interview-questions/monitoring-prometheus.md): 22개 질문, Mid-Level - [Logging & ELK Stack](https://sharpskill.dev/ko/technologies/devops/interview-questions/logging-elk.md): 20개 질문, Mid-Level - [알림 및 인시던트 대응](https://sharpskill.dev/ko/technologies/devops/interview-questions/alerting-incident-response.md): 20개 질문, Mid-Level - [Cloud Identity & Secrets](https://sharpskill.dev/ko/technologies/devops/interview-questions/cloud-identity-secrets.md): 22개 질문, Mid-Level - [CI/CD 파이프라인 보안](https://sharpskill.dev/ko/technologies/devops/interview-questions/cicd-pipeline-security.md): 20개 질문, Mid-Level - [Helm & Kubernetes](https://sharpskill.dev/ko/technologies/devops/interview-questions/helm-kubernetes.md): 20개 질문, Mid-Level - [런타임 및 클러스터 보안](https://sharpskill.dev/ko/technologies/devops/interview-questions/runtime-cluster-security.md): 24개 질문, Senior - [Container Supply Chain Security](https://sharpskill.dev/ko/technologies/devops/interview-questions/container-supply-chain.md): 22개 질문, Senior - [Service Mesh & Istio](https://sharpskill.dev/ko/technologies/devops/interview-questions/service-mesh-istio.md): 24개 질문, Senior - [Progressive Delivery](https://sharpskill.dev/ko/technologies/devops/interview-questions/progressive-delivery.md): 20개 질문, Senior - [분산 옵저버빌리티](https://sharpskill.dev/ko/technologies/devops/interview-questions/observability-distributed.md): 22개 질문, Senior - [Disaster Recovery & Backup](https://sharpskill.dev/ko/technologies/devops/interview-questions/disaster-recovery.md): 20개 질문, Senior - [성능 최적화](https://sharpskill.dev/ko/technologies/devops/interview-questions/performance-optimization.md): 22개 질문, Senior - [클라우드 비용 최적화](https://sharpskill.dev/ko/technologies/devops/interview-questions/infrastructure-cost.md): 20개 질문, Senior - [SRE 원칙](https://sharpskill.dev/ko/technologies/devops/interview-questions/sre-principles.md): 24개 질문, Senior - [Chaos Engineering](https://sharpskill.dev/ko/technologies/devops/interview-questions/chaos-engineering.md): 20개 질문, Senior - [Platform Engineering](https://sharpskill.dev/ko/technologies/devops/interview-questions/platform-engineering.md): 22개 질문, Senior --- Source: SharpSkill (https://sharpskill.dev), tech interview preparation for your real stack. 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