diff --git a/containers/Containerfile b/containers/Containerfile
index 1ddf102af..050f52940 100644
--- a/containers/Containerfile
+++ b/containers/Containerfile
@@ -19,6 +19,8 @@ ARG KEEP_WORKSPACE=""
 ARG DISTRO_NAME="starter"
 ARG RUN_CONFIG_PATH=""
 ARG UV_HTTP_TIMEOUT=500
+ARG UV_EXTRA_INDEX_URL=""
+ARG UV_INDEX_STRATEGY=""
 ENV UV_HTTP_TIMEOUT=${UV_HTTP_TIMEOUT}
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PIP_DISABLE_PIP_VERSION_CHECK=1
@@ -56,6 +58,8 @@ ENV TEST_PYPI_VERSION=${TEST_PYPI_VERSION}
 ENV KEEP_WORKSPACE=${KEEP_WORKSPACE}
 ENV DISTRO_NAME=${DISTRO_NAME}
 ENV RUN_CONFIG_PATH=${RUN_CONFIG_PATH}
+ENV UV_EXTRA_INDEX_URL=${UV_EXTRA_INDEX_URL}
+ENV UV_INDEX_STRATEGY=${UV_INDEX_STRATEGY}
 
 # Copy the repository so editable installs and run configurations are available.
 COPY . /workspace
diff --git a/scripts/integration-tests.sh b/scripts/integration-tests.sh
index 93739052b..008a420bf 100755
--- a/scripts/integration-tests.sh
+++ b/scripts/integration-tests.sh
@@ -271,6 +271,16 @@ if [[ "$STACK_CONFIG" == *"docker:"* && "$COLLECT_ONLY" == false ]]; then
         --build-arg "LLAMA_STACK_DIR=/workspace"
     )
 
+    # Pass UV index configuration for release branches
+    if [[ -n "${UV_EXTRA_INDEX_URL:-}" ]]; then
+        echo "Adding UV_EXTRA_INDEX_URL to docker build: $UV_EXTRA_INDEX_URL"
+        build_cmd+=(--build-arg "UV_EXTRA_INDEX_URL=$UV_EXTRA_INDEX_URL")
+    fi
+    if [[ -n "${UV_INDEX_STRATEGY:-}" ]]; then
+        echo "Adding UV_INDEX_STRATEGY to docker build: $UV_INDEX_STRATEGY"
+        build_cmd+=(--build-arg "UV_INDEX_STRATEGY=$UV_INDEX_STRATEGY")
+    fi
+
     if ! "${build_cmd[@]}"; then
         echo "❌ Failed to build Docker image"
         exit 1