Files
supabase/apps/studio/components/interfaces/ProjectCreation
Alaister YoungandAlaister Young de4bec77d6 [MUL-1338] fix(studio): lock compute size to large for HA projects (#49249)
When the High availability (Multigres) toggle is enabled in the New
Project form, the Compute size dropdown now offers only **Large** and
the form value is forced to `large`. Previously HA projects showed the
same micro/small/medium options as regular projects.

**Added:**
- `HIGH_AVAILABILITY_INSTANCE_SIZE` constant (`'large'`) alongside the
other `HIGH_AVAILABILITY_*` constants

**Changed:**
- `ComputeSizeSelector` watches `highAvailability` and renders only
Large when it's on (hiding the "Larger instance sizes available after
creation" row); the `cloudProvider` read is now a reactive `useWatch`
instead of a render-time `getValues()`, so the list re-filters when HA
forces the provider to `AWS_K8S`
- `HighAvailabilityInput` forces `instanceSize` to `large` when HA
toggles on and restores the previously selected size when it toggles
off, alongside the existing `dbRegion`/`cloudProvider` handling
- The compute size and region selects ignore Radix's spurious
`onValueChange('')` — Radix emits it when a select's value and option
list change in the same tick, which wiped the forced value (details in
the inline comments)
- HA projects skip the "Confirm compute costs" modal on submit — HA is
free during Alpha, so the forced large size shouldn't trigger the
$110/mo confirmation

## To test

- On a paid org, open the New Project form: with HA off, the Compute
size dropdown shows micro/small/medium plus the disabled "Larger
instance sizes available after creation" row
- Toggle High availability on: the dropdown shows only Large, the
trigger reads "large / 8 GB RAM / 2-core CPU" (not the placeholder), the
region locks as before, and the footer shows $110/m
- Check the network tab: the `available-regions` request goes out with
`desired_instance_size=large` and returns 200 (no request with an empty
`desired_instance_size`)
- Select medium first, toggle HA on then off: medium is restored (same
for other sizes); rapid toggling shouldn't leave the field blank
- With HA on, submitting goes straight through without the "Confirm
compute costs" modal; a non-HA medium project still shows it

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **New Features**
* High-availability projects now automatically use the required
dedicated instance size.
* Disabling high availability restores the previously selected instance
size.
* Compute size options are filtered based on cloud provider and
high-availability settings.

* **Bug Fixes**
* Prevented accidental clearing of compute size or region selections
during option updates.
* Compute-cost confirmation is no longer required for high-availability
projects.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: Alaister Young <10985857+alaister@users.noreply.github.com>
2026-08-19 13:03:39 +00:00
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