#!/bin/bash
# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
set -e
trap 'echo Cleaning up...; kill 0' EXIT

# Set deterministic hash for KV event IDs
export PYTHONHASHSEED=0

# Common configuration
MODEL="Qwen/Qwen3-0.6B"

HTTP_PORT="${DYN_HTTP_PORT:-8000}"
SCRIPT_DIR="$(dirname "$(readlink -f "$0")")"
source "$SCRIPT_DIR/../../../common/launch_utils.sh"

print_launch_banner "Launching Disaggregated + KVBM + KV Routing (4 GPUs)" "$MODEL" "$HTTP_PORT"


# dynamo.frontend accepts either --http-port flag or DYN_HTTP_PORT env var (defaults to 8000)
python -m dynamo.frontend \
    --router-mode kv \
    --router-reset-states &

# two decode workers (without KVBM)
# --enforce-eager is added for quick deployment. for production use, need to remove this flag
CUDA_VISIBLE_DEVICES=0 python3 -m dynamo.vllm \
    --model $MODEL \
    --enforce-eager \
    --disaggregation-mode decode \
    --kv-transfer-config '{"kv_connector":"NixlConnector","kv_role":"kv_both"}' &

VLLM_NIXL_SIDE_CHANNEL_PORT=20096 \
CUDA_VISIBLE_DEVICES=1 python3 -m dynamo.vllm \
    --model $MODEL \
    --enforce-eager \
    --disaggregation-mode decode \
    --kv-transfer-config '{"kv_connector":"NixlConnector","kv_role":"kv_both"}' &

# two prefill workers with KVBM enabled
# Each worker needs unique ZMQ ports to avoid KVBM coordination conflicts
VLLM_NIXL_SIDE_CHANNEL_PORT=20097 \
DYN_KVBM_LEADER_ZMQ_PUB_PORT=56001 \
DYN_KVBM_LEADER_ZMQ_ACK_PORT=56002 \
CUDA_VISIBLE_DEVICES=2 DYN_KVBM_CPU_CACHE_GB=20 \
    python3 -m dynamo.vllm \
    --model $MODEL \
    --enforce-eager \
    --disaggregation-mode prefill \
    --kv-transfer-config '{"kv_connector":"PdConnector","kv_role":"kv_both","kv_connector_extra_config":{"connectors":[{"kv_connector":"DynamoConnector","kv_connector_module_path":"kvbm.vllm_integration.connector","kv_role":"kv_both"},{"kv_connector":"NixlConnector","kv_role":"kv_both"}]},"kv_connector_module_path":"kvbm.vllm_integration.connector"}' \
    --kv-events-config '{"publisher":"zmq","topic":"kv-events","endpoint":"tcp://*:20081"}' &

VLLM_NIXL_SIDE_CHANNEL_PORT=20098 \
DYN_KVBM_LEADER_ZMQ_PUB_PORT=56003 \
DYN_KVBM_LEADER_ZMQ_ACK_PORT=56004 \
CUDA_VISIBLE_DEVICES=3 DYN_KVBM_CPU_CACHE_GB=20 \
    python3 -m dynamo.vllm \
    --model $MODEL \
    --enforce-eager \
    --disaggregation-mode prefill \
    --kv-transfer-config '{"kv_connector":"PdConnector","kv_role":"kv_both","kv_connector_extra_config":{"connectors":[{"kv_connector":"DynamoConnector","kv_connector_module_path":"kvbm.vllm_integration.connector","kv_role":"kv_both"},{"kv_connector":"NixlConnector","kv_role":"kv_both"}]},"kv_connector_module_path":"kvbm.vllm_integration.connector"}' \
    --kv-events-config '{"publisher":"zmq","topic":"kv-events","endpoint":"tcp://*:20082"}' &

# Exit on first worker failure; kill 0 in the EXIT trap tears down the rest
wait_any_exit
