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Update Fly.io scaling configuration (flyio-scale-from-ui)#174

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Update Fly.io scaling configuration (flyio-scale-from-ui)#174
fly-io[bot] wants to merge 1 commit into
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flyio-scale-from-ui

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@fly-io fly-io Bot commented Jun 11, 2026

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This PR was automatically generated by the Fly.io dashboard after a scale operation updated the machine sizes.

Merging keeps your packages/kit/fly.toml in sync so the next fly deploy uses the new sizes.

Summary by CodeRabbit

  • Chores
    • Updated deployment configuration with optimized VM resource settings, including adjusted memory allocation and CPU configuration.

@hyochan

hyochan commented Jun 11, 2026

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/gemini review

@hyochan

hyochan commented Jun 11, 2026

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@coderabbitai review

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✅ Action performed

Review finished.

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📝 Walkthrough

Walkthrough

The Fly deployment configuration is updated with a generated-file header and optimized VM settings. Memory is reduced from 512mb to 256mb with explicit CPU and memory allocation fields, and a process declaration is added alongside documentation linking to Fly's configuration reference.

Changes

Fly deployment configuration

Layer / File(s) Summary
VM resource and configuration header
packages/kit/fly.toml
Added a generated-file header comment documenting the configuration source. Updated the [[vm]] section to reduce memory to 256mb and explicitly specify CPU kind (shared), CPU count (1), and process allocation (['app']).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

A rabbit hops through configs fine,
256 megs will serve just fine,
With headers clear and CPUs shared,
The Fly deployment, now prepared! 🐰✨

🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title clearly describes the main change: updating Fly.io scaling configuration in the fly.toml file, which is exactly what the changeset does.
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.

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  • Commit unit tests in branch flyio-scale-from-ui

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Code Review

This pull request updates the Fly.io configuration in packages/kit/fly.toml by adding boilerplate comments and adjusting the VM resources, notably reducing the memory from 512MB to 256MB. However, reducing the memory to 256MB for a Bun server running a Hono API with heavy dependencies poses a high risk of Out-Of-Memory (OOM) crashes. It is recommended to revert this change and maintain at least 512MB of memory to ensure application stability.

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Comment thread packages/kit/fly.toml Outdated
Comment on lines +22 to +25
memory = '256mb'
cpu_kind = 'shared'
cpus = 1
memory_mb = 256

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high

Reducing the VM memory to 256MB for a compiled Bun server (openiap-kit-server) running a Hono API with multiple heavy dependencies (such as googleapis, @sentry/bun, and convex) carries a high risk of Out-Of-Memory (OOM) crashes. The compiled Bun binary itself has a non-trivial baseline memory footprint, and garbage collection overhead under concurrent requests can easily exceed 256MB. It is highly recommended to maintain at least 512MB of memory to guarantee application stability and prevent unexpected downtime.

Suggested change
memory = '256mb'
cpu_kind = 'shared'
cpus = 1
memory_mb = 256
memory = '512mb'
cpu_kind = 'shared'
cpus = 1
memory_mb = 512

@hyochan hyochan added kit IAPKit (receipt-validation SaaS) ✨ configuration Configuration for better code 🚀 cd Cloud Deploy labels Jun 11, 2026
…om-ui

Generated automatically by the Fly.io dashboard.
@fly-io fly-io Bot force-pushed the flyio-scale-from-ui branch from 35f4c7c to fb5d05a Compare June 11, 2026 14:48
@hyochan

hyochan commented Jun 11, 2026

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Closing per maintainer request. The scaling concern is being handled by keeping the app VM at 512 MB.

@hyochan hyochan closed this Jun 11, 2026
@hyochan hyochan deleted the flyio-scale-from-ui branch June 15, 2026 22:04
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