`cf deploy` deletes plain-text vars set outside the config: no equivalent of `keep_vars`

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評価

難易度
3/5
見積もり時間
1〜2日
初心者へのやさしさ
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issue の種類
機能追加
明瞭さ
明確に書かれている
活発さ
活発
技術スタック
typescript
領域
cli

調査の方向性

Start with the deploy command and the upload builder mentioned in the issue, then trace how worker configuration is read and how cf migrate handles keep_vars. Add a keepVars configuration or deploy flag that preserves externally managed plain-text vars, and ensure migration maps keep_vars; verify with the existing deploy and migration tests, if present.

索引モデルが issue の本文から書いたものです。

説明

cf version: 1.0.0-beta.12

What happens

cloudflare.config.ts has no equivalent of Wrangler's keep_vars. cf migrate says so:

├─ [required] keep_vars: The keep_vars is not supported by the new config and was not migrated.
├─ [required] env.test.keep_vars: The keep_vars is not supported by the new config and was not migrated.

So after migrating, every cf deploy replaces the Worker's plain-text vars with what the config declares, and deletes any var set some other way: in the dashboard, over the API, or by another tool. In beta.12's dist, the upload builder takes keepVars, but the deploy command passes keepVars: void 0. cf deploy has no --var / --keep-vars flag either.

This is the vars half of #72, which covers secrets, where --secrets-file gives a workaround. Vars have no workaround.

Why it matters

Some projects deliberately keep runtime configuration as plain vars that are set outside the config file, so they stay readable on the Worker. In our case a separate operator tool writes them over the API, and the repo's wrangler.jsonc declares none of them, with keep_vars: true. With Wrangler, a deploy from a checkout ships code and leaves those values alone. With cf deploy, the same deploy would wipe every one of them. This blocks our migration.

Ask

A keepVars option on the worker config (or a --keep-vars deploy flag), matching Wrangler's keep_vars: true. Mapping keep_vars in cf migrate would follow from it.

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はじめの一歩

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  2. 着手することを issue にコメントします — 二人が同じ作業をするのを防げます。
  3. リポジトリをフォークし、ブランチを切って変更します。
  4. issue 番号を参照したプルリクエストを送ります。

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