Usage-based pricing - validate that self-hosted Gitpod users are not impacted by UBP changes

[jldec]

Feature flags should ensure that there is no impact of UBP on self-hosted Gitpod installations, but this needs to be validated.

• no unexpected UBP-related errors during install or at run-time
• no billing config or usage view for teams or individuals
• no workspace or prebuild errors related to usage limits

known issues

• Usage tab is visible for all teams in the September self-hosted release build #13390
• Cannot delete teams in self-hosted RC build #13392
• Cannot create new project on self-hosted September RC build #13395

[geropl]

For ensuring exactly this we introduced the concept of BillingMode, with the possible values of none, chargebee and usage-based. And the relevant lines of code are here: if enablePayment is not set to true by the installer, the BillingMode for all users (and teams) defaults to none.

This BillingMode influences three things (which cover all ground mentioned above):

• it governs what users can see on the dashboard (an improvement over the prior state!)
• it governs what API users can use (e.g., being allowed to call upgradeSubscription or not)
• it governs which implementation (strategy) of the EnttilementService is used to figure out what a user is entitled to do. Here's the implementation for none (should be named license, really. My fault 🙄 ): EntitlementServiceLicense

That being said: we should still test, though. 🙃

[AlexTugarev]

Request deleteTeam failed with message: Stripe is not properly configured

This error blocks from team deletion, if payment is not configured.

[lucasvaltl]

@geropl what is the ask here towards the self-hosted team? If this is about spinning up self-hosted environments to test this, you should be able to use the environments during next week's release week to test this :)

[geropl]

@lucasvaltl Absolutely! This was before "release week" was decided 😉

[svenefftinge]

We should target adding the usage view with the next (October) release.

[geropl]

Issue: "Usage View" is visible in self-hosted but shows broken content. (context: https://gitpod.slack.com/archives/C01KLC56NP7/p1664288507520209 )

[jldec]

FYI - edited issue description to include 2 new issues as sub-tasks (fix usage view and team deletion)