[Usage-based] When payment is enabled, attribute all workspace instance usage to an explicitly selected "billing account"

[jankeromnes]

Description

When payment is enabled, attribute all workspace instance usage to an explicitly selected "billing account".

TODO:

• In the user's Billing settings, show all the teams that have usage-based billing enabled in a dropdown
• Persist a user's selected "billing account"
• When computing the usageAttributionId of a workspace instance, attribute based on the workspace owner's selected "billing account"

Follow-ups:

• Auto-select "billing account" when there is no ambiguity (e.g. when a team upgrades to usage-based billing, also update all its users' usageAttributionId where it makes sense)
• Auto-revert to user account when the team subscription is cancelled, or when the user leaves the team

Related Issue(s)

Fixes #10901

How to test

1. Open a workspace with no project
2. Create a project under your user (this automatically triggers a prebuild, so no need to also start a workspace)
3. Create a Team A, with a Project A under it
4. Create a Team B, with a Project B under it
5. Verify attribution*:
   a. Workspace with no project --> your user
   b. Workspace with user project --> your user
   c. Workspace with Team A project --> your user
   d. Workspace with Team B project --> your user
6. Now, enable usage-based billing for Team A, by adding a credit card for it (e.g 4242 4242 4242 4242, 4/24, 424)
7. Next, in your user's Settings, go to the "Billing" page, and select "Team A" as a billing account (note: "Team B" should not be available, since it doesn't have usage-based billing enabled)
8. Open a new workspace with no project
9. Open a new workspace for your user project
10. Open a new workspace for Project A
11. Open a new workspace for Project B
12. Verify attribution*:
    a. Workspace with no project --> team A
    b. Workspace with user project --> team A
    c. Workspace with Team A project --> team A
    d. Workspace with Team B project --> team A

*To verify attribution, open this PR in Gitpod, then run:

kubectl port-forward mysql-0 3306 &
mysql -h 127.0.0.1 -pjBzVMe2w4Yi7GagadsyB gitpod
mysql> select workspaceId, usageAttributionId, creationTime from d_b_workspace_instance order by creationTime;

Example output:

+-----------------------------------+-------------------------------------------+--------------------------+
| workspaceId                       | usageAttributionId                        | creationTime             |
+-----------------------------------+-------------------------------------------+--------------------------+
| autofixdev-autofix-vyof8v6yj9i    | user:a7dcf253-f05e-4dcf-9a47-cf8fccc74717 | 2022-06-24T13:13:34.254Z |
| jankeromnes-metachess-g7xzjycgnqj | team:8eba990a-4f1c-4233-b80f-c45330f81dd6 | 2022-06-24T13:14:41.517Z |
| jankeromnes-metaboard-9uzkqymxtz0 | team:8eba990a-4f1c-4233-b80f-c45330f81dd6 | 2022-06-24T13:15:04.492Z |
| jankeromnes-metachess-zwbh1q0jis4 | user:a7dcf253-f05e-4dcf-9a47-cf8fccc74717 | 2022-06-24T13:15:38.521Z |
+-----------------------------------+-------------------------------------------+--------------------------+

You can also verify every user's usageAttributionId preference like so:

mysql> select name, additionalData->"$.usageAttributionId" from d_b_user;
+--------------------------+---------------------------------------------+
| name                     | additionalData->"$.usageAttributionId"      |
+--------------------------+---------------------------------------------+
| jankeromnes              | "team:8eba990a-4f1c-4233-b80f-c45330f81dd6" |
| agent-smith              | NULL                                        |
| builtin-workspace-prober | NULL                                        |
+--------------------------+---------------------------------------------+

Release Notes

NONE

Documentation

Werft options:

• /werft with-preview
• /werft with-payment

[geropl]

❤️

[geropl]

Thank you, LGTM!