Auto-generate distro yamls + docs (#468)

# What does this PR do?

Automatically generates
- build.yaml
- run.yaml
- run-with-safety.yaml
- parts of markdown docs

for the distributions.

## Test Plan

At this point, this only updates the YAMLs and the docs. Some testing
(especially with ollama and vllm) has been performed but needs to be
much more tested.

distributions/ollama/compose.yaml

@@ -1,30 +1,71 @@
 services:
   ollama:
     image: ollama/ollama:latest
-    network_mode: "host"
+    network_mode: ${NETWORK_MODE:-bridge}
     volumes:
-      - ollama:/root/.ollama # this solution synchronizes with the docker volume and loads the model rocket fast
+      - ~/.ollama:/root/.ollama
     ports:
       - "11434:11434"
+    environment:
+      OLLAMA_DEBUG: 1
     command: []
+    deploy:
+      resources:
+        limits:
+          memory: 8G    # Set maximum memory
+        reservations:
+          memory: 8G    # Set minimum memory reservation
+    # healthcheck:
+    #   # ugh, no CURL in ollama image
+    #   test: ["CMD", "curl", "-f", "http://ollama:11434"]
+    #   interval: 10s
+    #   timeout: 5s
+    #   retries: 5
+
+  ollama-init:
+    image: ollama/ollama:latest
+    depends_on:
+      - ollama
+        # condition: service_healthy
+    network_mode: ${NETWORK_MODE:-bridge}
+    environment:
+      - OLLAMA_HOST=ollama
+      - INFERENCE_MODEL=${INFERENCE_MODEL}
+      - SAFETY_MODEL=${SAFETY_MODEL:-}
+    volumes:
+      - ~/.ollama:/root/.ollama
+      - ./pull-models.sh:/pull-models.sh
+    entrypoint: ["/pull-models.sh"]
+
   llamastack:
     depends_on:
-    - ollama
-    image: llamastack/distribution-ollama
-    network_mode: "host"
+      ollama:
+        condition: service_started
+      ollama-init:
+        condition: service_started
+    image: ${LLAMA_STACK_IMAGE:-llamastack/distribution-ollama}
+    network_mode: ${NETWORK_MODE:-bridge}
     volumes:
       - ~/.llama:/root/.llama
       # Link to ollama run.yaml file
-      - ./run.yaml:/root/my-run.yaml
+      - ~/local/llama-stack/:/app/llama-stack-source
+      - ./run${SAFETY_MODEL:+-with-safety}.yaml:/root/my-run.yaml
     ports:
-      - "5000:5000"
-    # Hack: wait for ollama server to start before starting docker
-    entrypoint: bash -c "sleep 60; python -m llama_stack.distribution.server.server --yaml_config /root/my-run.yaml"
+      - "${LLAMA_STACK_PORT:-5001}:${LLAMA_STACK_PORT:-5001}"
+    environment:
+      - INFERENCE_MODEL=${INFERENCE_MODEL}
+      - SAFETY_MODEL=${SAFETY_MODEL:-}
+      - OLLAMA_URL=http://ollama:11434
+    entrypoint: >
+        python -m llama_stack.distribution.server.server /root/my-run.yaml \
+        --port ${LLAMA_STACK_PORT:-5001}
     deploy:
       restart_policy:
         condition: on-failure
-        delay: 3s
-        max_attempts: 5
+        delay: 10s
+        max_attempts: 3
         window: 60s
 volumes:
   ollama:
+  ollama-init:
+  llamastack: