launch

launch#

Start a single component only, typically used for container entrypoint scenarios.

Usage#

yr launch [OPTIONS] COMPONENT

Parameters#

  • COMPONENT: Component name, for example etcd, ds_master, ds_worker, function_master, function_proxy, function_agent, frontend, dashboard, collector, meta_service, function_scheduler; also supports internal components for K8s deployment such as iam_server, function_manager, runtime_manager.

  • --inherit-env: Inherit parent process environment variables (default is not to inherit).

  • --env-subst KEY: Replace {KEY} in the configuration file with the value of the environment variable KEY. Can be specified multiple times, or use comma separation (e.g., --env-subst A,B).

Description#

  • launch only starts a single component and will not automatically start dependent components.

  • For production deployment, please prefer using yr start to obtain complete dependency orchestration, health check, and session management capabilities.

Examples#

yr launch etcd

yr launch --inherit-env --env-subst POD_IP,HOST_IP function_proxy