Managing requirements for a many-thousands contributors software

Transcript

1. Managing requirements for a >1k contributors software
3. dafuq?, smiling cat?
4. For attending Still here feel free to interrupt @flaper87 flavio@redhat.com
6. The problem Co-Installable software What do we depend on? Requirements Synced
7. What do we depend on? License requirements Binary vs Pure Python Py27 / Py34 support
8. What do we depend on? License requirements Binary vs Pure Python Py27 / Py34 support
9. What do we depend on? License requirements Binary vs Pure Python Py27 / Py34 support
10. What do we depend on? License requirements Binary vs Pure Python Py27 / Py34 support
11. requirements >= synced Project 1 Project 2 Project 3 Project N
12. Co-Installable software Compute Requirements Storage Requirements Network Requirements
13. Co-Installable software Compute Requirements Storage Requirements Network Requirements openstack libraries Third-Party libraries transitive dependencies
14. Co-Installable software Essential for integration tests
15. OpenStack [...] to produce the ubiquitous Open Source Cloud Computing platform that will meet the needs of public and private clouds regardless of size, by being simple to implement and massively scalable. [...]
16. Compute & storage We’ve been adding new projects to the ecosystem ever since OpenStack was created
17. Compute & storage auth We’ve been adding new projects to the ecosystem ever since OpenStack was created
18. Compute & storage db auth We’ve been adding new projects to the ecosystem ever since OpenStack was created
19. Compute & storage Network db auth We’ve been adding new projects to the ecosystem ever since OpenStack was created
20. Compute & storage Network Messages db auth We’ve been adding new projects to the ecosystem ever since OpenStack was created
21. Compute & storage Network Messages db auth Images We’ve been adding new projects to the ecosystem ever since OpenStack was created
22. Compute & storage Images DB net auth All these projects ought to be able to run under the same environment
23. Centralized requirements
24. For every requirement file Main Tests Extra
25. For every requirement file Direct & Transitive
26. For every requirement file Internal & Third-Party
27. Not editable mode (-e)
28. Not external source (-f)
29. CI Job forbidding untracked requirements
30. minimum Working version
31. No Dependency Caps
32. Requirements Constraints
33. 1 2 3 4 Does it have an acceptable license? Is it Py3 compatible? Is it actively maintained? Is it packaged already? 5 Does something similar exists already? Ask yourself these questions
34. ... Or you can just ignore this ...
35. 1 2 3 4 Use the minimum version possible Avoid dependencies that don’t do semver Capping is not always good Favor things on PyPi 5 Keep track of transitive dependencies Summary-ish
36. Questions?