# Progressive Delivery (DevOps) > Argo Rollouts, Flagger, canary deployments, blue-green, traffic splitting, 자동 rollback - 20 면접 질문 - Senior - [면접 질문: DevOps](https://sharpskill.dev/ko/technologies/devops/interview-questions.md) ## 1. DevOps 맥락에서 Progressive Delivery란 무엇입니까? **답변** Progressive Delivery는 트래픽 노출을 세밀하게 제어하여 새로운 애플리케이션 버전을 점진적으로 릴리스할 수 있는 배포 접근 방식입니다. 모든 트래픽이 즉시 전환되는 기존 배포와 달리, Progressive Delivery는 canary나 blue-green 같은 전략을 사용하여 새 버전을 점진적으로 노출합니다. 이를 통해 완전한 rollout 전에 점진적 검증, 빠른 rollback, 메트릭 분석이 가능해져 위험을 줄입니다. ## 2. canary deployment이란 무엇입니까? **답변** canary deployment은 새 버전을 먼저 소수의 사용자(5~10%)에게 노출한 후 점진적으로 전체 트래픽에 배포하는 배포 전략입니다. 이 용어는 유독 가스를 감지하기 위해 광산에서 사용된 카나리아에서 유래했습니다. 이 접근 방식은 제한된 위험으로 프로덕션에서 새 버전을 검증하고, 메트릭(오류, 지연 시간)을 분석하며, 문제가 감지되면 빠르게 rollback할 수 있게 해줍니다. ## 3. blue-green deployment이란 무엇입니까? **답변** blue-green deployment은 두 개의 동일한 환경(blue와 green)을 병렬로 유지하는 전략입니다. 활성 환경이 트래픽을 계속 처리하는 동안 새 버전이 비활성 환경에 배포되고, 그 후 트래픽이 새 환경으로 즉시 전환됩니다. 이 접근 방식은 문제가 발생하면 트래픽을 이전 환경으로 리디렉션하여 즉시 rollback할 수 있지만, 두 배의 리소스가 필요합니다. ## 17개 추가 질문 이용 가능 - Argo Rollouts란 무엇입니까? - Flagger란 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 - [GitOps & ArgoCD](https://sharpskill.dev/ko/technologies/devops/interview-questions/gitops-argocd.md): 22개 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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