fix: exclude llama-stack when installing external-providers

using `--constraint` with `uv pip install` allows us to effectively skip llama-stack if found in an external providers dependencies

Signed-off-by: Charlie Doern <cdoern@redhat.com>

llama_stack/core/build_conda_env.sh

@@ -143,8 +143,17 @@ ensure_conda_env_python310() {
     if [ -n "$external_provider_deps" ]; then
       IFS='#' read -ra parts <<<"$external_provider_deps"
       for part in "${parts[@]}"; do
-        echo "$part"
-        uv pip install "$part"
+        echo "Installing external provider: $part"
+
+        # Create a temporary constraint file to exclude llama-stack
+        cat > /tmp/constraints.txt << 'EOF'
+# Exclude llama-stack to avoid circular dependencies
+llama-stack==0.0.0
+EOF
+
+        # Install the external provider with constraints to exclude llama-stack
+        uv pip install --constraint /tmp/constraints.txt "$part"
+        rm -f /tmp/constraints.txt
       done
     fi
   else
@@ -193,7 +202,12 @@ try:
     module = importlib.import_module(f'$package_name.provider')
     spec = module.get_provider_spec()
     if hasattr(spec, 'pip_packages') and spec.pip_packages:
-        print('\\n'.join(spec.pip_packages))
+        # Filter out llama-stack from pip_packages to avoid circular dependency
+        filtered_packages = [pkg for pkg in spec.pip_packages if not pkg.startswith('llama-stack')]
+        if filtered_packages:
+            print('\\n'.join(filtered_packages))
+        else:
+            print('No non-llama-stack dependencies found', file=sys.stderr)
 except Exception as e:
     print(f'Error getting provider spec for $package_name: {e}', file=sys.stderr)
 " | uv pip install -r -

llama_stack/core/build_container.sh

@@ -199,10 +199,11 @@ if [ -n "$external_provider_deps" ]; then
     read -ra pip_args <<< "$part"
     quoted_deps=$(printf " %q" "${pip_args[@]}")
     add_to_container <<EOF
-RUN uv pip install --no-cache $quoted_deps
-EOF
-    add_to_container <<EOF
-RUN python3 - <<PYTHON | uv pip install --no-cache -r -
+# Create constraint file to exclude llama-stack
+RUN echo "# Exclude llama-stack to avoid circular dependencies" > /tmp/constraints.txt && \\
+    echo "llama-stack==0.0.0" >> /tmp/constraints.txt && \\
+
+RUN python3 - <<PYTHON | uv pip install --no-cache --constraint /tmp/constraints.txt -r -
 import importlib
 import sys
 
@@ -212,10 +213,17 @@ try:
     spec = module.get_provider_spec()
     if hasattr(spec, 'pip_packages') and spec.pip_packages:
         if isinstance(spec.pip_packages, (list, tuple)):
-            print('\n'.join(spec.pip_packages))
+            # Filter out llama-stack from pip_packages to avoid circular dependency
+            filtered_packages = [pkg for pkg in spec.pip_packages if not pkg.startswith('llama-stack')]
+            if filtered_packages:
+                print('\n'.join(filtered_packages))
+            else:
+                print('No additional dependencies needed', file=sys.stderr)
 except Exception as e:
     print(f'Error getting provider spec for {package_name}: {e}', file=sys.stderr)
 PYTHON
+
+RUN rm -f /tmp/constraints.txt
 EOF
   done
 fi

llama_stack/core/build_venv.sh

@@ -147,7 +147,18 @@ run() {
       IFS='#' read -ra parts <<<"$external_provider_deps"
       for part in "${parts[@]}"; do
         echo "$part"
-        uv pip install "$part"
+
+        # Create a temporary constraint file to exclude llama-stack
+        cat > /tmp/constraints.txt << 'EOF'
+# Exclude llama-stack to avoid circular dependencies
+llama-stack==0.0.0
+EOF
+
+        # Install the external provider with constraints to exclude llama-stack
+        uv pip install --constraint /tmp/constraints.txt "$part"
+
+        # Clean up constraint file
+        rm -f /tmp/constraints.txt
       done
     fi
   else
@@ -183,21 +194,42 @@ run() {
     if [ -n "$external_provider_deps" ]; then
       IFS='#' read -ra parts <<<"$external_provider_deps"
       for part in "${parts[@]}"; do
-        echo "Installing external provider module: $part"
-        uv pip install "$part"
-        echo "Getting provider spec for module: $part and installing dependencies"
+        echo "Installing external provider: $part"
+
+        # Create a temporary constraint file to exclude llama-stack
+        cat > /tmp/constraints.txt << 'EOF'
+# Exclude llama-stack to avoid circular dependencies
+llama-stack==0.0.0
+llama-stack-client==0.0.0
+EOF
+
+        # Install the external provider with constraints to exclude llama-stack
+        uv pip install --constraint /tmp/constraints.txt "$part"
+
+        echo "Getting provider spec for module: $part and installing additional dependencies"
         package_name=$(echo "$part" | sed 's/[<>=!].*//')
+
+        # Get additional dependencies from the provider spec (excluding llama-stack)
         python3 -c "
 import importlib
 import sys
+
 try:
     module = importlib.import_module(f'$package_name.provider')
     spec = module.get_provider_spec()
     if hasattr(spec, 'pip_packages') and spec.pip_packages:
-        print('\\n'.join(spec.pip_packages))
+        # Filter out llama-stack from pip_packages to avoid circular dependency
+        filtered_packages = [pkg for pkg in spec.pip_packages if not pkg.startswith('llama-stack')]
+        if filtered_packages:
+            print('\\n'.join(filtered_packages))
+        else:
+            print('No additional dependencies needed', file=sys.stderr)
 except Exception as e:
     print(f'Error getting provider spec for $package_name: {e}', file=sys.stderr)
-" | uv pip install -r -
+" | uv pip install --constraint /tmp/constraints.txt -r -
+
+        # Clean up constraint file
+        rm -f /tmp/constraints.txt
       done
     fi
   fi