docs/appendices/file-formats/lambda-yml.md

# lambda.yml

The `lambda.yml` file is used to configure a Lambda application.

```yaml
---
build_image: mlupin/docker-lambda:dotnetcore3.1-build
builder: dotnet
run_image: mlupin/docker-lambda:dotnetcore3.1
```

## Fields

`build_image`: A docker image that is accessible by the docker daemon. The `build_image` should be based on an existing Lambda image - builders may fail if they cannot run within the specified `build_image`. The build will fail if the image is inaccessible by the docker daemon.
`builder`: The name of a builder. This may be used if multiple builders match and a specific builder is desired. If an invalid builder is specified, the build will fail.
`run_image`: A docker image that is accessible by the docker daemon. The `run_image` should be based on an existing Lambda image - built images may fail to start if they are not compatible with the produced artifact. The generation of the `run_image` will fail if the image is inaccessible by the docker daemon.
docs: add documentation for all file formats dokku uses Some files - those maintained by external organizations - have a very light treatment and solely point to the upstream documentation to reduce any issues creating examples/documentation for them that may differ in the future. Closes #7315 2024-12-07 14:46:52 -05:00			`# lambda.yml`

			The `lambda.yml` file is used to configure a Lambda application.

			```yaml
			`---`
			`build_image: mlupin/docker-lambda:dotnetcore3.1-build`
			`builder: dotnet`
			`run_image: mlupin/docker-lambda:dotnetcore3.1`
			```

			`## Fields`

			`build_image`: A docker image that is accessible by the docker daemon. The `build_image` should be based on an existing Lambda image - builders may fail if they cannot run within the specified `build_image`. The build will fail if the image is inaccessible by the docker daemon.
			`builder`: The name of a builder. This may be used if multiple builders match and a specific builder is desired. If an invalid builder is specified, the build will fail.
			`run_image`: A docker image that is accessible by the docker daemon. The `run_image` should be based on an existing Lambda image - built images may fail to start if they are not compatible with the produced artifact. The generation of the `run_image` will fail if the image is inaccessible by the docker daemon.