Allow the use of env vars to configure API

Signed-off-by: Michael Yuan <[email protected]>

Author: juntao

docker-compose.yml

@@ -4,12 +4,12 @@ services:
     ports:
       - "8000:8000"
     environment:
-      - LLM_API_BASE=http://host.docker.internal:8080/v1
-      - LLM_MODEL=Qwen2.5-Coder-3B-Instruct-Q5_K_M
-      - LLM_EMBED_MODEL=local-embed
-      - LLM_EMBED_SIZE=768
-      - LLM_API_KEY=
-      - SKIP_VECTOR_SEARCH=true
+      - LLM_API_BASE=${LLM_API_BASE:-http://host.docker.internal:8080/v1}
+      - LLM_MODEL=${LLM_MODEL:-Qwen2.5-Coder-3B-Instruct-Q5_K_M}
+      - LLM_EMBED_MODEL=${LLM_EMBED_MODEL:-nomic-embed}
+      - LLM_EMBED_SIZE=${LLM_EMBED_SIZE:-768}
+      - LLM_API_KEY=${LLM_API_KEY:-ABCD1234}
+      - SKIP_VECTOR_SEARCH=${SKIP_VECTOR_SEARCH:-true}
       - QDRANT_HOST=qdrant
       - QDRANT_PORT=6333
     command: uvicorn app.main:app --host 0.0.0.0 --port 8000