connection .yaml file does not keep env reference when building dist folder

[monokizsolt]

Hello,

My connections/azure_open_ai.yaml file:

`
$schema: https://azuremlschemas.azureedge.net/promptflow/latest/AzureOpenAIConnection.schema.json

name: azure_openai

type: azure_open_ai

api_type: "azure"

api_key: ${env:AZURE_OPENAI_API_KEY}

api_base: ${env:AZURE_OPENAI_ENDPOINT}

api_version: ${env:AZURE_OPENAI_VERSION}

`

I create the connection locally:
pf connection create -f connections/azure_openai.yaml --set api_base=<base> api_version=<version> api_key=<key>

This works locally.

I build the dist folder for docker deployment: pf flow build --source . --output dist --format docker

But the dist/connections/azure_openai.yaml file is built like this:
`
$schema:
https://azuremlschemas.azureedge.net/promptflow/latest/AzureOpenAIConnection.schema.json

type: azure_open_ai

name: azure_openai

module: promptflow.connections

api_base: https://oai-general-dev-sweden.openai.azure.com

api_key: ${env:AZURE_OPENAI_API_KEY}

api_type: azure

api_version: '2024-10-21'

auth_mode: key
`

Why does it not keep the env variables? How can I change this?