Agile discussion (TeamA)

Sylvain Fargier (BE-CEM)

06/11/22

Agile/Scrum overview

• Agile Scrum
  • Based on "agile-manifesto"
  • Fixed length sprints, using a backlog of user-oriented stories : "As a user I want to ..."

Agile: Scrum

Agile/Scrum example cycle

Agile : Scrum ceremonies

Agile/Scrum ceremonies and timeline

• Practices from XP (extreme-programming)
  • Planning poker
  • TDD (test-driven development)
  • CI (continuous integration)
  • Pair programming / Code Reviews
• And from DevOps
  • CD (continuous deployment)
  • BDD (behavior-driven development)
• From Kanban using a board

Agile : Good Practices

General DevOps cycle

Planning poker deck

Our workflow

•  Backlog
  • Jira board integrating several projects
  • Using per-project releases
• KanBan board (see Jira board)
• Daily-Scrum
  • On Mattermost In addition to on-site stand-up dailies (on Monday)
• Weekly code-reviews / demo
  • Friday afternoons, on site

Project management

KanBan board (Jira)&
Daily-scrums (Mattermost)

• Homegeneous
  • On GitLab
  • CI and tools rules
  • Containerized build environment
  • Directory layout, naming, styling ...
  • Consistent techs and frameworks
• Documented
  • templates & boilerplates (cpp/web)
  • guidelines & readmes
  • playgrounds & live-documentation
  • Formal documentation streams and tooling

Projects & Repositories

Repository organisation and worflow

• Peer-review oriented workflow
  • Using CERN/GitLab merge-requests
  • Relying on CI tests and analysis results
• Per component maintainers
  • To empower and give sense of responsibility to developers
• Homogeneous workflow rules
  • Large number or repositories and users
  • Enforced using automated tools

Team work

Merge-requests & CI (GitLab)

• Weekly code-review
  • Show your work to others
  • Open discussions and exchanges
• Weekly builds
  • Rebuild and validate everything
  • Dependencies, platforms, environment evolves,
  • "Better fix sooner than later"
• Pair coding and reviews
  • Since software is all about learning

Quality & reviews

Playground code examples

Deployment & Production