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# What does this PR do?
We'd like our docker steps to require _ZERO EDITS_ to a YAML file in
order to get going. This is often not possible because depending on the
provider, we do need some configuration input from the user. Environment
variables are the best way to obtain this information.
This PR allows our run.yaml to contain `${env.FOO_BAR}` placeholders
which can be replaced using `docker run -e FOO_BAR=baz` (and similar
`docker compose` equivalent).
## Test Plan
For remote-vllm, example `run.yaml` snippet looks like this:
```yaml
providers:
inference:
# serves main inference model
- provider_id: vllm-0
provider_type: remote::vllm
config:
# NOTE: replace with "localhost" if you are running in "host" network mode
url: ${env.LLAMA_INFERENCE_VLLM_URL:http://host.docker.internal:5100/v1}
max_tokens: ${env.MAX_TOKENS:4096}
api_token: fake
# serves safety llama_guard model
- provider_id: vllm-1
provider_type: remote::vllm
config:
# NOTE: replace with "localhost" if you are running in "host" network mode
url: ${env.LLAMA_SAFETY_VLLM_URL:http://host.docker.internal:5101/v1}
max_tokens: ${env.MAX_TOKENS:4096}
api_token: fake
```
`compose.yaml` snippet looks like this:
```yaml
llamastack:
depends_on:
- vllm-0
- vllm-1
# image: llamastack/distribution-remote-vllm
image: llamastack/distribution-remote-vllm:test-0.0.52rc3
volumes:
- ~/.llama:/root/.llama
- ~/local/llama-stack/distributions/remote-vllm/run.yaml:/root/llamastack-run-remote-vllm.yaml
# network_mode: "host"
environment:
- LLAMA_INFERENCE_VLLM_URL=${LLAMA_INFERENCE_VLLM_URL:-http://host.docker.internal:5100/v1}
- LLAMA_INFERENCE_MODEL=${LLAMA_INFERENCE_MODEL:-Llama3.1-8B-Instruct}
- MAX_TOKENS=${MAX_TOKENS:-4096}
- SQLITE_STORE_DIR=${SQLITE_STORE_DIR:-$HOME/.llama/distributions/remote-vllm}
- LLAMA_SAFETY_VLLM_URL=${LLAMA_SAFETY_VLLM_URL:-http://host.docker.internal:5101/v1}
- LLAMA_SAFETY_MODEL=${LLAMA_SAFETY_MODEL:-Llama-Guard-3-1B}
```
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|---|---|---|
| .. | ||
| routers | ||
| server | ||
| store | ||
| utils | ||
| __init__.py | ||
| build.py | ||
| build_conda_env.sh | ||
| build_container.sh | ||
| client.py | ||
| common.sh | ||
| configure.py | ||
| configure_container.sh | ||
| datatypes.py | ||
| distribution.py | ||
| inspect.py | ||
| request_headers.py | ||
| resolver.py | ||
| stack.py | ||
| start_conda_env.sh | ||
| start_container.sh | ||