LCORE-399: Simplify image building and dependency list. Drop requirements.txt.

The lightspeed-stack image 0.2.0 bundles now all required Python dependencies.
Also bump up the lightspeed-stack image to 0.2.0.

Author: matysek

Containerfile

@@ -4,56 +4,37 @@ ARG IMAGE_TAGS=image-tags-not-defined
 ARG GIT_COMMIT=git-commit-not-defined
 
 # ======================================================
-# Transient image to construct Python venv
+# Base-image with all dependencies for Python venv
+# Lightspeed-stack bundles all required dependencies
+# For running llama-stack in library mode.
+#
+# To include more dependencies, create upstream PR
+# to update this file:
+# https://github.com/lightspeed-core/lightspeed-stack/blob/main/pyproject.toml
 # ------------------------------------------------------
-FROM quay.io/lightspeed-core/lightspeed-stack:0.1.3 AS builder
+FROM quay.io/lightspeed-core/lightspeed-stack:0.2.0
 
 ARG APP_ROOT=/app-root
 WORKDIR /app-root
 
-# UV_PYTHON_DOWNLOADS=0 : Disable Python interpreter downloads and use the system interpreter.
+# Add only project-specific dependencies without adding other dependencies
+# to not break the dependencies of the base image.
 ENV UV_COMPILE_BYTECODE=0 \
     UV_LINK_MODE=copy \
-    UV_PYTHON_DOWNLOADS=0
-
-# Install uv package manager
-RUN pip3.12 install uv
-
-# Add explicit files and directories
-# (avoid accidental inclusion of local directories or env files or credentials)
-COPY requirements.txt LICENSE.md README.md ./
-
-RUN uv pip install -r requirements.txt
-# ======================================================
-
-# ======================================================
-# Final image without uv package manager and based on lightspeed-stack base image
-# ------------------------------------------------------
-FROM registry.access.redhat.com/ubi9/python-312-minimal
+    UV_PYTHON_DOWNLOADS=0 \
+    UV_NO_CACHE=1
+RUN uv pip install . --no-deps && uv clean
 
 USER 0
 
-# Re-declaring arguments without a value, inherits the global default one.
-ARG APP_ROOT
-ARG ANSIBLE_CHATBOT_VERSION
-ARG IMAGE_TAGS
-ARG GIT_COMMIT
 RUN microdnf install -y --nodocs --setopt=keepcache=0 --setopt=tsflags=nodocs jq
 
-# PYTHONDONTWRITEBYTECODE 1 : disable the generation of .pyc
-# PYTHONUNBUFFERED 1 : force the stdout and stderr streams to be unbuffered
-# PYTHONCOERCECLOCALE 0, PYTHONUTF8 1 : skip legacy locales and use UTF-8 mode
-ENV PYTHONDONTWRITEBYTECODE=1 \
-    PYTHONUNBUFFERED=1 \
-    PYTHONCOERCECLOCALE=0 \
-    PYTHONUTF8=1 \
-    PYTHONIOENCODING=UTF-8 \
-    LANG=en_US.UTF-8
-
-COPY --from=builder --chown=1001:1001 /app-root /app-root
+# Add explicit files and directories
+# (avoid accidental inclusion of local directories or env files or credentials)
+COPY LICENSE.md README.md ./
 
 # this directory is checked by ecosystem-cert-preflight-checks task in Konflux
-COPY --from=builder /app-root/LICENSE.md /licenses/
+COPY LICENSE.md /licenses/
 
 ENV LLAMA_STACK_CONFIG_DIR=/.llama/data
 

Makefile

@@ -94,9 +94,6 @@ check-env-build:
 		exit 1; \
 	fi
 
-requirements.txt:
-	uv export --no-hashes --no-header --no-annotate --no-dev --format requirements.txt > requirements.txt
-
 build: check-env-build setup requirements.txt
 	@echo "Building customized Ansible Chatbot Stack image from lightspeed-core/lightspeed-stack..."
 	$(CONTAINER_RUNTIME) build --no-cache --platform $(PLATFORM) -f ./Containerfile \

pyproject.toml

@@ -5,21 +5,9 @@ description = "Ansible Lightspeed Intelligent Assistant (ALIA)"
 readme = "README.md"
 requires-python = ">=3.12"
 dependencies = [
-    "aiosqlite~=0.21.0",
-    "faiss-cpu~=1.11",
-    "fire~=0.7.0",
     "lightspeed-stack-providers==0.1.15",
-    "mcp~=1.9.4",
-    "numpy==2.2.6",
-    "opentelemetry-api~=1.34.1",
-    "opentelemetry-exporter-otlp~=1.34.1",
-    "sentence-transformers>=5.0.0",
-    "sqlalchemy~=2.0.41",
-    "litellm~=1.75.3",
 ]
 
 [dependency-groups]
 dev = [
-    "cachetools>=6.1.0",
-    "kubernetes>=33.1.0",
 ]