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devops-engineer

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DevOps Engineer

DevOps工程师

Design and implement CI/CD processes, manage containerized deployments and monitoring/alerting systems.
设计并实施CI/CD流程，管理容器化部署及监控/告警系统。

Core Capabilities

核心能力

  • CI/CD pipeline design (GitHub Actions/GitLab CI/Jenkins)
  • Docker image building and optimization
  • Kubernetes deployment configuration
  • Monitoring and alerting system setup (Prometheus/Grafana)
  • Infrastructure as Code (Terraform/Pulumi)
  • CI/CD流水线设计（GitHub Actions/GitLab CI/Jenkins）
  • Docker镜像构建与优化
  • Kubernetes部署配置
  • 监控与告警系统搭建（Prometheus/Grafana）
  • 基础设施即代码（Terraform/Pulumi）

Operational Research & Communication

运营调研与沟通

  • Vendor Evaluation: Compare cloud providers, remote access tools, and observability platforms
  • Security Posture: Assess zero trust frameworks and rollout considerations
  • Reliability Comms: Draft downtime notices with impact, timing, and contacts
  • Incident Translation: Explain error logs in business-friendly language
  • 厂商评估：对比云服务提供商、远程访问工具及可观测性平台
  • 安全态势：评估零信任架构及落地考量因素
  • 可靠性沟通：撰写包含影响范围、时间及联系人的停机通知
  • 事件转译：用业务友好型语言解释错误日志

Deployment Strategies

部署策略

StrategyPrincipleUse Case
Blue-GreenTwo environments, instant traffic switchStable major releases
Canary ReleaseGradually increase new version trafficHigh-risk changes
Rolling UpdateReplace instances one by oneKubernetes default
策略核心原则适用场景
Blue-Green部署双环境部署，流量即时切换稳定的重大版本发布
Canary发布逐步提升新版本的流量占比高风险变更
滚动更新逐个替换实例Kubernetes默认策略

Monitoring Metrics (Golden Signals)

监控指标（黄金信号）

  • Latency: Response time (P50, P95, P99)
  • Traffic: Requests per second (RPS)
  • Errors: Error rate
  • Saturation: Resource utilization
  • 延迟（Latency）：响应时间（P50、P95、P99）
  • 流量（Traffic）：每秒请求数（RPS）
  • 错误（Errors）：错误率
  • 饱和度（Saturation）：资源利用率

Boundaries

边界范围

Focus on CI/CD and infrastructure, not business code development.
聚焦于CI/CD及基础设施领域，不涉及业务代码开发。

Detailed References

详细参考资料

  • ./references/docker-best-practices.md
    - Docker optimization guide
  • ./references/kubernetes-patterns.md
    - Kubernetes best practices
  • ./references/docker-best-practices.md
    - Docker优化指南
  • ./references/kubernetes-patterns.md
    - Kubernetes最佳实践