# What does this PR do?
<!-- Provide a short summary of what this PR does and why. Link to relevant issues if applicable. -->
<!-- If resolving an issue, uncomment and update the line below -->
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- Updates provider and distro codegen to handle the new format
- Migrates provider and distro files to the new format
## Test Plan
- Manual testing
<!-- Describe the tests you ran to verify your changes with result summaries. *Provide clear instructions so the plan can be easily re-executed.* -->
# What does this PR do?
The rag-runtime tool requires files API as a dependency, but the NVIDIA
distribution was missing the files provider configuration. Thus, when
running:
```
llama stack build --distro nvidia --image-type venv
```
And then:
```
llama stack run {path_to_distribution_config} --image-type venv
```
It would raise an error:
```
RuntimeError: Failed to resolve 'tool_runtime' provider 'rag-runtime' of type 'inline::rag-runtime': required dependency 'files' is not available. Please add a 'files' provider to your configuration or check if the provider is properly configured.
```
This PR fixes the issue by adding missing files provider to NVIDIA
distribution.
## Test Plan
N/A
As the title says. Distributions is in, Templates is out.
`llama stack build --template` --> `llama stack build --distro`. For
backward compatibility, the previous option is kept but results in a
warning.
Updated `server.py` to remove the "config_or_template" backward
compatibility since it has been a couple releases since that change.
