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docs/source/distribution_dev/building_distro.md
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@ -1,53 +1,56 @@
# Developer Guide: Assemble a Llama Stack Distribution
> NOTE: This doc may be out-of-date.
This guide will walk you through the steps to get started with building a Llama Stack distributiom from scratch with your choice of API providers. Please see the [Getting Started Guide](./getting_started.md) if you just want the basic steps to start a Llama Stack distribution.
This guide will walk you through the steps to get started with building a Llama Stack distributiom from scratch with your choice of API providers. Please see the [Getting Started Guide](https://llama-stack.readthedocs.io/en/latest/getting_started/index.html) if you just want the basic steps to start a Llama Stack distribution.
## Step 1. Build
In the following steps, imagine we'll be working with a `Meta-Llama3.1-8B-Instruct` model. We will name our build `8b-instruct` to help us remember the config. We will start build our distribution (in the form of a Conda environment, or Docker image). In this step, we will specify:
- `name`: the name for our distribution (e.g. `8b-instruct`)
### Llama Stack Build Options
```
llama stack build -h
```
We will start build our distribution (in the form of a Conda environment, or Docker image). In this step, we will specify:
- `name`: the name for our distribution (e.g. `my-stack`)
- `image_type`: our build image type (`conda | docker`)
- `distribution_spec`: our distribution specs for specifying API providers
- `description`: a short description of the configurations for the distribution
- `providers`: specifies the underlying implementation for serving each API endpoint
- `image_type`: `conda` | `docker` to specify whether to build the distribution in the form of Docker image or Conda environment.
After this step is complete, a file named `<name>-build.yaml` and template file `<name>-run.yaml` will be generated and saved at the output file path specified at the end of the command.
At the end of build command, we will generate `<name>-build.yaml` file storing the build configurations.
::::{tab-set}
:::{tab-item} Building from Scratch
After this step is complete, a file named `<name>-build.yaml` will be generated and saved at the output file path specified at the end of the command.
#### Building from scratch
- For a new user, we could start off with running `llama stack build` which will allow you to a interactively enter wizard where you will be prompted to enter build configurations.
```
llama stack build
> Enter a name for your Llama Stack (e.g. my-local-stack): my-stack
> Enter the image type you want your Llama Stack to be built as (docker or conda): conda
Llama Stack is composed of several APIs working together. Let's select
the provider types (implementations) you want to use for these APIs.
Tip: use <TAB> to see options for the providers.
> Enter provider for API inference: meta-reference
> Enter provider for API safety: meta-reference
> Enter provider for API agents: meta-reference
> Enter provider for API memory: meta-reference
> Enter provider for API datasetio: meta-reference
> Enter provider for API scoring: meta-reference
> Enter provider for API eval: meta-reference
> Enter provider for API telemetry: meta-reference
> (Optional) Enter a short description for your Llama Stack:
You can now edit ~/.llama/distributions/llamastack-my-local-stack/my-local-stack-run.yaml and run `llama stack run ~/.llama/distributions/llamastack-my-local-stack/my-local-stack-run.yaml`
```
:::
Running the command above will allow you to fill in the configuration to build your Llama Stack distribution, you will see the following outputs.
```
> Enter an unique name for identifying your Llama Stack build distribution (e.g. my-local-stack): 8b-instruct
> Enter the image type you want your distribution to be built with (docker or conda): conda
Llama Stack is composed of several APIs working together. Let's configure the providers (implementations) you want to use for these APIs.
> Enter the API provider for the inference API: (default=meta-reference): meta-reference
> Enter the API provider for the safety API: (default=meta-reference): meta-reference
> Enter the API provider for the agents API: (default=meta-reference): meta-reference
> Enter the API provider for the memory API: (default=meta-reference): meta-reference
> Enter the API provider for the telemetry API: (default=meta-reference): meta-reference
> (Optional) Enter a short description for your Llama Stack distribution:
Build spec configuration saved at ~/.conda/envs/llamastack-my-local-llama-stack/8b-instruct-build.yaml
```
**Ollama (optional)**
If you plan to use Ollama for inference, you'll need to install the server [via these instructions](https://ollama.com/download).
#### Building from templates
:::{tab-item} Building from a template
- To build from alternative API providers, we provide distribution templates for users to get started building a distribution backed by different providers.
The following command will allow you to see the available templates and their corresponding providers.
@ -59,18 +62,21 @@ llama stack build --list-templates
+------------------------------+--------------------------------------------+----------------------------------------------------------------------------------+
| Template Name | Providers | Description |
+------------------------------+--------------------------------------------+----------------------------------------------------------------------------------+
| bedrock | { | Use Amazon Bedrock APIs. |
| | "inference": "remote::bedrock", | |
| | "memory": "meta-reference", | |
| hf-serverless | { | Like local, but use Hugging Face Inference API (serverless) for running LLM |
| | "inference": "remote::hf::serverless", | inference. |
| | "memory": "meta-reference", | See https://hf.co/docs/api-inference. |
| | "safety": "meta-reference", | |
| | "agents": "meta-reference", | |
| | "telemetry": "meta-reference" | |
| | } | |
+------------------------------+--------------------------------------------+----------------------------------------------------------------------------------+
| databricks | { | Use Databricks for running LLM inference |
| | "inference": "remote::databricks", | |
| | "memory": "meta-reference", | |
| | "safety": "meta-reference", | |
| together | { | Use Together.ai for running LLM inference |
| | "inference": "remote::together", | |
| | "memory": [ | |
| | "meta-reference", | |
| | "remote::weaviate" | |
| | ], | |
| | "safety": "remote::together", | |
| | "agents": "meta-reference", | |
| | "telemetry": "meta-reference" | |
| | } | |
@ -88,17 +94,37 @@ llama stack build --list-templates
| | "telemetry": "meta-reference" | |
| | } | |
+------------------------------+--------------------------------------------+----------------------------------------------------------------------------------+
| hf-endpoint | { | Like local, but use Hugging Face Inference Endpoints for running LLM inference. |
| | "inference": "remote::hf::endpoint", | See https://hf.co/docs/api-endpoints. |
| databricks | { | Use Databricks for running LLM inference |
| | "inference": "remote::databricks", | |
| | "memory": "meta-reference", | |
| | "safety": "meta-reference", | |
| | "agents": "meta-reference", | |
| | "telemetry": "meta-reference" | |
| | } | |
+------------------------------+--------------------------------------------+----------------------------------------------------------------------------------+
| hf-serverless | { | Like local, but use Hugging Face Inference API (serverless) for running LLM |
| | "inference": "remote::hf::serverless", | inference. |
| | "memory": "meta-reference", | See https://hf.co/docs/api-inference. |
| vllm | { | Like local, but use vLLM for running LLM inference |
| | "inference": "vllm", | |
| | "memory": "meta-reference", | |
| | "safety": "meta-reference", | |
| | "agents": "meta-reference", | |
| | "telemetry": "meta-reference" | |
| | } | |
+------------------------------+--------------------------------------------+----------------------------------------------------------------------------------+
| tgi | { | Use TGI for running LLM inference |
| | "inference": "remote::tgi", | |
| | "memory": [ | |
| | "meta-reference", | |
| | "remote::chromadb", | |
| | "remote::pgvector" | |
| | ], | |
| | "safety": "meta-reference", | |
| | "agents": "meta-reference", | |
| | "telemetry": "meta-reference" | |
| | } | |
+------------------------------+--------------------------------------------+----------------------------------------------------------------------------------+
| bedrock | { | Use Amazon Bedrock APIs. |
| | "inference": "remote::bedrock", | |
| | "memory": "meta-reference", | |
| | "safety": "meta-reference", | |
| | "agents": "meta-reference", | |
| | "telemetry": "meta-reference" | |
@ -140,31 +166,8 @@ llama stack build --list-templates
| | "telemetry": "meta-reference" | |
| | } | |
+------------------------------+--------------------------------------------+----------------------------------------------------------------------------------+
| tgi | { | Use TGI for running LLM inference |
| | "inference": "remote::tgi", | |
| | "memory": [ | |
| | "meta-reference", | |
| | "remote::chromadb", | |
| | "remote::pgvector" | |
| | ], | |
| | "safety": "meta-reference", | |
| | "agents": "meta-reference", | |
| | "telemetry": "meta-reference" | |
| | } | |
+------------------------------+--------------------------------------------+----------------------------------------------------------------------------------+
| together | { | Use Together.ai for running LLM inference |
| | "inference": "remote::together", | |
| | "memory": [ | |
| | "meta-reference", | |
| | "remote::weaviate" | |
| | ], | |
| | "safety": "remote::together", | |
| | "agents": "meta-reference", | |
| | "telemetry": "meta-reference" | |
| | } | |
+------------------------------+--------------------------------------------+----------------------------------------------------------------------------------+
| vllm | { | Like local, but use vLLM for running LLM inference |
| | "inference": "vllm", | |
| hf-endpoint | { | Like local, but use Hugging Face Inference Endpoints for running LLM inference. |
| | "inference": "remote::hf::endpoint", | See https://hf.co/docs/api-endpoints. |
| | "memory": "meta-reference", | |
| | "safety": "meta-reference", | |
| | "agents": "meta-reference", | |
@ -175,6 +178,7 @@ llama stack build --list-templates
You may then pick a template to build your distribution with providers fitted to your liking.
For example, to build a distribution with TGI as the inference provider, you can run:
```
llama stack build --template tgi
```
@ -182,15 +186,14 @@ llama stack build --template tgi
```
$ llama stack build --template tgi
...
...
Build spec configuration saved at ~/.conda/envs/llamastack-tgi/tgi-build.yaml
You may now run `llama stack configure tgi` or `llama stack configure ~/.conda/envs/llamastack-tgi/tgi-build.yaml`
You can now edit ~/.llama/distributions/llamastack-tgi/tgi-run.yaml and run `llama stack run ~/.llama/distributions/llamastack-tgi/tgi-run.yaml`
```
:::
#### Building from config file
:::{tab-item} Building from a pre-existing build config file
- In addition to templates, you may customize the build to your liking through editing config files and build from config files with the following command.
- The config file will be of contents like the ones in `llama_stack/distributions/templates/`.
- The config file will be of contents like the ones in `llama_stack/templates/*build.yaml`.
```
$ cat llama_stack/templates/ollama/build.yaml
@ -210,148 +213,111 @@ image_type: conda
```
llama stack build --config llama_stack/templates/ollama/build.yaml
```
:::
#### How to build distribution with Docker image
:::{tab-item} Building Docker
> [!TIP]
> Podman is supported as an alternative to Docker. Set `DOCKER_BINARY` to `podman` in your environment to use Podman.
To build a docker image, you may start off from a template and use the `--image-type docker` flag to specify `docker` as the build image type.
```
llama stack build --template local --image-type docker
llama stack build --template ollama --image-type docker
```
Alternatively, you may use a config file and set `image_type` to `docker` in our `<name>-build.yaml` file, and run `llama stack build <name>-build.yaml`. The `<name>-build.yaml` will be of contents like:
```
name: local-docker-example
distribution_spec:
description: Use code from `llama_stack` itself to serve all llama stack APIs
docker_image: null
providers:
inference: meta-reference
memory: meta-reference-faiss
safety: meta-reference
agentic_system: meta-reference
telemetry: console
image_type: docker
```
The following command allows you to build a Docker image with the name `<name>`
```
llama stack build --config <name>-build.yaml
Dockerfile created successfully in /tmp/tmp.I0ifS2c46A/DockerfileFROM python:3.10-slim
WORKDIR /app
$ llama stack build --template ollama --image-type docker
...
Dockerfile created successfully in /tmp/tmp.viA3a3Rdsg/DockerfileFROM python:3.10-slim
...
You can run it with: podman run -p 8000:8000 llamastack-docker-local
Build spec configuration saved at ~/.llama/distributions/docker/docker-local-build.yaml
You can now edit ~/meta-llama/llama-stack/tmp/configs/ollama-run.yaml and run `llama stack run ~/meta-llama/llama-stack/tmp/configs/ollama-run.yaml`
```
After this step is successful, you should be able to find the built docker image and test it with `llama stack run <path/to/run.yaml>`.
:::
## Step 2. Configure
After our distribution is built (either in form of docker or conda environment), we will run the following command to
```
llama stack configure [ <docker-image-name> | <path/to/name.build.yaml>]
```
- For `conda` environments: <path/to/name.build.yaml> would be the generated build spec saved from Step 1.
- For `docker` images downloaded from Dockerhub, you could also use <docker-image-name> as the argument.
- Run `docker images` to check list of available images on your machine.
::::
## Step 2. Run
Now, let's start the Llama Stack Distribution Server. You will need the YAML configuration file which was written out at the end by the `llama stack build` step.
```
$ llama stack configure tgi
Configuring API: inference (meta-reference)
Enter value for model (existing: Meta-Llama3.1-8B-Instruct) (required):
Enter value for quantization (optional):
Enter value for torch_seed (optional):
Enter value for max_seq_len (existing: 4096) (required):
Enter value for max_batch_size (existing: 1) (required):
Configuring API: memory (meta-reference-faiss)
Configuring API: safety (meta-reference)
Do you want to configure llama_guard_shield? (y/n): y
Entering sub-configuration for llama_guard_shield:
Enter value for model (default: Llama-Guard-3-1B) (required):
Enter value for excluded_categories (default: []) (required):
Enter value for disable_input_check (default: False) (required):
Enter value for disable_output_check (default: False) (required):
Do you want to configure prompt_guard_shield? (y/n): y
Entering sub-configuration for prompt_guard_shield:
Enter value for model (default: Prompt-Guard-86M) (required):
Configuring API: agentic_system (meta-reference)
Enter value for brave_search_api_key (optional):
Enter value for bing_search_api_key (optional):
Enter value for wolfram_api_key (optional):
Configuring API: telemetry (console)
YAML configuration has been written to ~/.llama/builds/conda/tgi-run.yaml
llama stack run ~/.llama/distributions/llamastack-my-local-stack/my-local-stack-run.yaml
```
After this step is successful, you should be able to find a run configuration spec in `~/.llama/builds/conda/tgi-run.yaml` with the following contents. You may edit this file to change the settings.
As you can see, we did basic configuration above and configured:
- inference to run on model `Meta-Llama3.1-8B-Instruct` (obtained from `llama model list`)
- Llama Guard safety shield with model `Llama-Guard-3-1B`
- Prompt Guard safety shield with model `Prompt-Guard-86M`
For how these configurations are stored as yaml, checkout the file printed at the end of the configuration.
Note that all configurations as well as models are stored in `~/.llama`
## Step 3. Run
Now, let's start the Llama Stack Distribution Server. You will need the YAML configuration file which was written out at the end by the `llama stack configure` step.
```
llama stack run 8b-instruct
```
$ llama stack run ~/.llama/distributions/llamastack-my-local-stack/my-local-stack-run.yaml
You should see the Llama Stack server start and print the APIs that it is supporting
Loaded model...
Serving API datasets
GET /datasets/get
GET /datasets/list
POST /datasets/register
Serving API inspect
GET /health
GET /providers/list
GET /routes/list
Serving API inference
POST /inference/chat_completion
POST /inference/completion
POST /inference/embeddings
Serving API scoring_functions
GET /scoring_functions/get
GET /scoring_functions/list
POST /scoring_functions/register
Serving API scoring
POST /scoring/score
POST /scoring/score_batch
Serving API memory_banks
GET /memory_banks/get
GET /memory_banks/list
POST /memory_banks/register
Serving API memory
POST /memory/insert
POST /memory/query
Serving API safety
POST /safety/run_shield
Serving API eval
POST /eval/evaluate
POST /eval/evaluate_batch
POST /eval/job/cancel
GET /eval/job/result
GET /eval/job/status
Serving API shields
GET /shields/get
GET /shields/list
POST /shields/register
Serving API datasetio
GET /datasetio/get_rows_paginated
Serving API telemetry
GET /telemetry/get_trace
POST /telemetry/log_event
Serving API models
GET /models/get
GET /models/list
POST /models/register
Serving API agents
POST /agents/create
POST /agents/session/create
POST /agents/turn/create
POST /agents/delete
POST /agents/session/delete
POST /agents/session/get
POST /agents/step/get
POST /agents/turn/get
```
$ llama stack run 8b-instruct
> initializing model parallel with size 1
> initializing ddp with size 1
> initializing pipeline with size 1
Loaded in 19.28 seconds
NCCL version 2.20.5+cuda12.4
Finished model load YES READY
Serving POST /inference/batch_chat_completion
Serving POST /inference/batch_completion
Serving POST /inference/chat_completion
Serving POST /inference/completion
Serving POST /safety/run_shield
Serving POST /agentic_system/memory_bank/attach
Serving POST /agentic_system/create
Serving POST /agentic_system/session/create
Serving POST /agentic_system/turn/create
Serving POST /agentic_system/delete
Serving POST /agentic_system/session/delete
Serving POST /agentic_system/memory_bank/detach
Serving POST /agentic_system/session/get
Serving POST /agentic_system/step/get
Serving POST /agentic_system/turn/get
Listening on :::5000
INFO: Started server process [453333]
Listening on ['::', '0.0.0.0']:5000
INFO: Started server process [2935911]
INFO: Waiting for application startup.
INFO: Application startup complete.
INFO: Uvicorn running on http://[::]:5000 (Press CTRL+C to quit)
INFO: Uvicorn running on http://['::', '0.0.0.0']:5000 (Press CTRL+C to quit)
INFO: 2401:db00:35c:2d2b:face:0:c9:0:54678 - "GET /models/list HTTP/1.1" 200 OK
```
> [!NOTE]
> Configuration is in `~/.llama/builds/local/conda/tgi-run.yaml`. Feel free to increase `max_seq_len`.
> [!IMPORTANT]
> The "local" distribution inference server currently only supports CUDA. It will not work on Apple Silicon machines.
> [!TIP]
> You might need to use the flag `--disable-ipv6` to Disable IPv6 support
This server is running a Llama model locally.