System Settings¶

To fine-tune system API Firewall settings, use the following optional environment variables:

Environment variable	Description
`APIFW_READ_TIMEOUT`	The timeout for API Firewall to read the full request (including the body) sent to the application URL. The default value is `5s`.
`APIFW_WRITE_TIMEOUT`	The timeout for API Firewall to return the response to the request sent to the application URL. The default value is `5s`.
`APIFW_SERVER_MAX_CONNS_PER_HOST` (for `PROXY` and `graphql` modes)	The maximum number of connections that API Firewall can handle simultaneously. The default value is `512`.
`APIFW_SERVER_READ_TIMEOUT` (for `PROXY` and `graphql` modes)	The timeout for API Firewall to read the full response (including the body) returned to the request by the application. The default value is `5s`.
`APIFW_SERVER_WRITE_TIMEOUT` (for `PROXY` and `graphql` modes)	The timeout for API Firewall to write the full request (including the body) to the application. The default value is `5s`.
`APIFW_SERVER_DIAL_TIMEOUT` (for `PROXY` and `graphql` modes)	The timeout for API Firewall to connect to the application. The default value is `200ms`.
`APIFW_SERVER_CLIENT_POOL_CAPACITY` (for `PROXY` and `graphql` modes)	Maximum number of the fasthttp clients. The default value is `1000`.
`APIFW_HEALTH_HOST`	The host of the health check service. The default value is `0.0.0.0:9667`. The liveness probe service path is `/v1/liveness` and the readiness service path is `/v1/readiness`.