Realistic Guide To DevOps

?? 1. Plan

• Goal: Define business and technical requirements.
• Tools: Jira, Azure Boards, Trello, GitHub Projects
• Key Practices:
  • Agile/scrum planning
  • User stories and task breakdown
  • Backlog grooming
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  ?? 2. Develop

  • Goal: Write the code.
  • Tools: Git, GitHub/GitLab/Azure Repos, Visual Studio Code, JetBrains Rider
  • Key Practices:
    • Source control with Git (feature branches, PRs)
    • Code reviews
    • Pair programming
    • Use of linters and static analysis tools
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    ??? 3. Build

    • Goal: Turn source code into executable artifacts.
    • Tools: Azure Pipelines, GitHub Actions, Jenkins, TeamCity
    • Key Practices:
      • Automated build pipelines
      • Dependency management
      • Versioning
      • Build caching
      /ul> /li> /ul>

      ?? 4. Test

      • Goal: Ensure code is correct and safe.
      • Tools: xUnit/NUnit (C#), Jest (JavaScript), Selenium, Postman, Playwright
      • Key Practices:
        • Unit testing
        • Integration testing
        • Automated regression tests
        • Code coverage tracking
        • Security scanning (e.g., Snyk)
        /ul> /li> /ul>

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        ?? 5. Release

        • Goal: Prepare the software for production.
        • Tools: GitHub Releases, Octopus Deploy, Azure DevOps Releases
        • Key Practices:
          • Tagging and release notes
          • Versioning strategies (SemVer)
          • Approval gates and change management
          /ul> /li> /ul>

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          ?? 6. Deploy

          • Goal: Ship the software to the target environment.
          • Tools: Azure DevOps Pipelines, GitHub Actions, ArgoCD, Helm, Terraform
          • Key Practices:
            • Infrastructure as Code (IaC)
            • Blue/Green or Canary deployments
            • Rollback strategies
            • Secrets management (e.g., Azure Key Vault)
            /ul> /li> /ul>

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            ??? 7. Operate

            • Goal: Ensure reliability and performance of the live system.
            • Tools: Azure Monitor, AWS CloudWatch, Prometheus, Grafana
            • Key Practices:
              • Infrastructure monitoring
              • Logging (e.g., Serilog, ELK, Loki)
              • Alerting and on-call rotations
              /ul> /li> /ul>

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              ?? 8. Monitor & Feedback

              • Goal: Use real-world usage data to improve.
              • Tools: Application Insights, New Relic, DataDog, Sentry
              • Key Practices:
                • End-user telemetry
                • Error tracking
                • A/B testing
                • Retrospectives and continuous improvement
                /ul> /li> /ul>

                ?? Best Practices

                • Shift Left: Catch issues early (test early, secure early).
                • Everything as Code: Source control for infrastructure, builds, policies.
                • Small, Frequent Releases: Lower risk and faster feedback.
                • Automate Everything: Builds, tests, security, deployments.
                • Measure Everything: DORA metrics (deployment frequency, change lead time, MTTR, failure rate).
                /ul>