#!/usr/bin/env bash
# Copyright 2026 Google LLC
# SPDX-License-Identifier: Apache-2.0
# Ollama Hello World Demo
# =======================
#
# Demonstrates local LLM inference, tools, vision, and embeddings with Genkit.
#
# Prerequisites:
# - Ollama installed and running locally
#
# Usage:
# ./run.sh # Start the demo with Dev UI
# ./run.sh --help # Show this help message
set -euo pipefail
cd "$(dirname "$0")"
source "../_common.sh"
# Models used by this sample
MODELS=(
"gemma3:latest" # General generation & structured output
"mistral-nemo:latest" # Tool calling (gablorken, currency, weather)
"llava:latest" # Vision / image description
"nomic-embed-text" # Embeddings for RAG
)
check_ollama() {
if ! command -v ollama &> /dev/null; then
echo -e "${RED}Error: Ollama not found${NC}"
echo "Install from: https://ollama.com/download"
return 1
fi
if ! curl -s http://localhost:11434/api/tags &> /dev/null; then
echo -e "${YELLOW}Warning: Ollama server not responding${NC}"
echo "Start with: ollama serve"
echo ""
else
echo -e "${GREEN}✓${NC} Ollama server is running"
fi
}
pull_models() {
echo ""
echo "Pulling required models..."
for model in "${MODELS[@]}"; do
echo -e " Pulling ${CYAN}${model}${NC}..."
ollama pull "$model" 2>/dev/null || echo -e " ${YELLOW}⚠${NC} Could not pull ${model} (will retry on first use)"
done
echo ""
}
print_help() {
print_banner "Ollama Hello World" "🦙"
echo "Usage: ./run.sh [options]"
echo ""
echo "Options:"
echo " --help Show this help message"
echo ""
echo "Prerequisites:"
echo " - Ollama installed: https://ollama.com/download"
echo " - Ollama running: ollama serve"
echo ""
echo "Models (auto-pulled on first run):"
for model in "${MODELS[@]}"; do
echo " - $model"
done
print_help_footer
}
case "${1:-}" in
--help|-h)
print_help
exit 0
;;
esac
print_banner "Ollama Hello World" "🦙"
check_ollama || true
pull_models
install_deps
genkit_start_with_browser -- \
uv tool run --from watchdog watchmedo auto-restart \
-d src \
-d ../../packages \
-d ../../plugins \
-p '*.py;*.prompt;*.json' \
-R \
-- uv run src/main.py "$@"
