open-im-server/deployments/templates/upstream.conf

upstream minio_s3 {
            server ${DOCKER_BRIDGE_GATEWAY}:${MINIO_PORT};
}
upstream im_web_front {
            server ${DOCKER_BRIDGE_GATEWAY}:${OPENIM_WEB_PORT};
}
upstream im_admin_front {
            server ${DOCKER_BRIDGE_GATEWAY}:${OPENIM_ADMIN_FRONT_PORT};
}

upstream im_msg_gateway {
            server ${DOCKER_BRIDGE_GATEWAY}:${OPENIM_WS_PORT};
}

upstream im_api {
            server ${DOCKER_BRIDGE_GATEWAY}:${API_OPENIM_PORT};
}

upstream im_chat_api {
            server ${DOCKER_BRIDGE_GATEWAY}:${OPENIM_CHAT_API_PORT};
}

upstream im_admin_api {
            server ${DOCKER_BRIDGE_GATEWAY}:${OPENIM_ADMIN_API_PORT};
}