feat: [M3-9092] - Add Feature Flag for Linode Interfaces

[bnussman-akamai]

Description 📝

• Adds a feature flag for the Linode Interfaces project 🔌 🏴
  • The flag is just a BaseFeatureFlag for now, but we will likely extend BaseFeatureFlag with more properties as this project evolves
• Adds initial useIsLinodeInterfacesEnabled hook 🎣
  • This is just acts as a useful abstraction over the flag and customer tags
• Opening this PR now so that we can begin building out the UI behind a flag

Preview 📷

How to test 🧪

• Nothing to test in the UI! Just verify the code looks correct and doesn't make any crazy errors
• Verify the unit test brings value
  • It is basic for now, but it will be nice to have once this project gets a bit more complex

Author Checklists

As an Author, to speed up the review process, I considered 🤔

👀 Doing a self review
❔ Our contribution guidelines
🤏 Splitting feature into small PRs
➕ Adding a changeset
🧪 Providing/improving test coverage
🔐 Removing all sensitive information from the code and PR description
🚩 Using a feature flag to protect the release
👣 Providing comprehensive reproduction steps
📑 Providing or updating our documentation
🕛 Scheduling a pair reviewing session
📱 Providing mobile support
♿ Providing accessibility support

• I have read and considered all applicable items listed above.

As an Author, before moving this PR from Draft to Open, I confirmed ✅

• All unit tests are passing
• TypeScript compilation succeeded without errors
• Code passes all linting rules

[coliu-akamai]

✅ confirmed tests pass - thank you!

We'll want to update the GET v4/regions/{id} endpoint too as part of the AC:

not urgent, does the feature flag need to be turned on in dev in launch darkly? Not seeing it when I console.logged flags in useFlags():

[bnussman-akamai]

@coliu-akamai

I see the API is currently returning Enhanced Interfaces on /v4/regions right now. I added that. We may need to update this if they every change it to just Interfaces

I didn't add the flag to Launch Darkly yet just incase we wanted something different than linodeInterfaces. I will add it when merging

[github-actions]

Coverage Report: ✅
Base Coverage: 79.29%
Current Coverage: 79.3%

[coliu-akamai]

ooh a reference to Enhanced Interfaces still exists 😆
I'll leave a comment on the region endpoint to give them a heads up

[bnussman-akamai]

Great, thank you! @coliu-akamai

[linode-gh-bot]

Cloud Manager UI test results

🎉 490 passing tests on test run #4 ↗︎

❌ Failing	✅ Passing	↪️ Skipped	🕐 Duration
0 Failing	490 Passing	2 Skipped	119m 40s

[cypress]

Cloud Manager E2E    Run #7151

Run Properties:   Passed #7151  •  1ef473ff35: feat: [M3-9092] - Add Feature Flag for Linode Interfaces (#11584)

Project	Cloud Manager E2E
Branch Review	develop
Run status	Passed #7151
Run duration	29m 11s
Commit	1ef473ff35: feat: [M3-9092] - Add Feature Flag for Linode Interfaces (#11584)
Committer	Banks Nussman
View all properties for this run ↗︎

---

Test results
Failures	0
Flaky	1
Pending	2
Skipped	0
Passing	493
View all changes introduced in this branch ↗︎

[coliu-akamai]

update - they said it will be changed to 'Linode Interfaces' around hopefully next week or so. There's a number of other API clarifications, so gonna make a ticket to follow up on them in [M3-9210]