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kcmartin merged 1 commit into from
Feb 26, 2026
Merged

Clarify config path resolution when using custom working directory #2360

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26 changes: 26 additions & 0 deletions launch/monorepo.html.md
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---
title: Monorepo and multi-environment deployments

Check failure on line 2 in launch/monorepo.html.md

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GitHub Actions / Vale linter 

[vale] reported by reviewdog 🐶
[Vale.Terms] Use 'monorepo' instead of 'Monorepo'.

Raw Output:
{"message": "[Vale.Terms] Use 'monorepo' instead of 'Monorepo'.", "location": {"path": "launch/monorepo.html.md", "range": {"start": {"line": 2, "column": 8}}}, "severity": "ERROR"}
layout: docs
nav: apps
redirect_from: /docs/reference/monorepo/
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fly deploy --build-target worker
```

## Combining options

When you specify a working directory, the `--config` and `--dockerfile` paths are relative to the working directory (build context), not your current directory.

For example, given this structure:

```
repo/
├── flyio/
│ └── my-app.toml
└── my-app/
└── Dockerfile
```

This won't work, because `./flyio/my-app.toml` doesn't exist inside `./my-app`:

```cmd
fly deploy ./my-app --config ./flyio/my-app.toml
```

Instead, use a path relative to the working directory:

```cmd
fly deploy ./my-app --config ../flyio/my-app.toml
```

## Examples

**Use a different fly.toml file per environment**
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