Summary

Integrate GitLab onto feature flags management

• Closes #966.
• Closes #1298.

Steps to test

• Go to https://gitlab.com/minds/engine/-/feature_flags
• Click the pencil icon on the media-modal row.
• Notice the [review-site] environment state (flipped on=true, off=false)
• Open https://epic-feature-flags.minds.io/api/v1/minds/config in Postman (or Firefox)
• Navigate to features > media-modal. Check the value matches what you saw on GitLab.
• Now switch it.
• Wait 5 minutes or more (there's a small cache)
• Reload https://epic-feature-flags.minds.io/api/v1/minds/config in Postman (or Firefox)
• Navigate to features > media-modal. Check the value reflects your switch on GitLab.

Note: Ensure you sync with other testers because you might be flipping each other switches.

Estimated Regression Scope

Feature flags might not be correctly read or exported to frontend.

Deployment

New Settings

$CONFIG->set('unleash', [
    'apiUrl' => '', // URL to GitLab's Unleash server
    'instanceId' => '', // GitLab's Unleash instance ID
    'applicationName' => '', // GitLab Feature Flags environment
    'pollingIntervalSeconds' => 300, // Cache bust
    'metricsIntervalSeconds' => 15, // Metrics interval
]);

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mentioned in issue #966

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added 13 commits

• 104a2e41...570a6e81 - 12 commits from branch master
• ea0a7219 - Merge remote-tracking branch 'origin/master' into epic/feature-flags

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added 1 commit

• c04e224b - (refactor): Introduce context groups; features service layer

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• abcf3497 - (fix): Use session; (test): Fix all tests

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• fc847e39 - (chore): VCS for minds/unleash-client-php

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added 3 commits

• fc847e39...31877e67 - 2 commits from branch master
• c5ad49f0 - Merge remote-tracking branch 'origin/master' into epic/feature-flags

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• 535b0b41 - (chore): Use unleash-client-php 0.1.1

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• 95129e19 - (feat): Whitelist feature keys

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• efd07fe7 - (chore): Remove test features
• 6a29c603 - (feat): Resolve user groups for $CONFIG values
• 30e7c4be - (chore): Whitelisting should happen in services
• 2b27c128 - (feat): Environment variables service
• 890731ee - (chore): PHPdoc

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• ac1cb6df - (test): Spec test and tweaks on tested classes

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unmarked as a Work In Progress

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resolved all threads

Note: Ensure you sync with other testers because you might be flipping each other switches.

Testing

approved this merge request

Approved, working fine

unassigned @edgebal

assigned to @edgebal, @brianhatchet, @markeharding, and @xander-miller

I'm unable to make the feature flag false. Let's discuss on a call. Can we also confirm all flags are false by default?

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