Health check template ID. The format is hct- followed by alphanumeric characters.

Whether to preview this request.

• false (default): Send a normal request to directly modify the health check template.
• true: Send a preview request to check whether the parameters, format, and service limits of the modified health check template meet the requirements.

Health check status code. Value:

• When the health check protocol is HTTP/HTTPS:
  • HTTP_1xx
  • HTTP_2xx (default value)
  • HTTP_3xx
  • HTTP_4xx
  • HTTP_5xx
• When the health check protocol is GRPC/GRPCS: the default value is 12, the value range is 0-99, and the input value can be a numerical value, multiple values, a range, or a combination, for example:
  • "20"
  • "0-99"

Threshold for determining backend service health. After the health check succeeds consecutively for this number of times, the backend service status changes from unhealthy to healthy.
Value range: 2-10.
Default value: 2.

Health check domain name.
Length limit: 1-255 characters.
It can contain lowercase letters, digits, dashes (-), and half-width periods (.).

This parameter takes effect only when HealthCheckProtocol is set to HTTP/HTTPS/GRPC/GRPCS.

HTTP version for health check. Valid values:

• HTTP1.1 (default)
• HTTP1.0

  This parameter takes effect only when HealthCheckProtocol is set to HTTP or HTTPS.

The interval of health check. Unit: second. Value range: 2-300. Default value: 5.

Health check method. Value: - GET - HEAD (default value)

This parameter takes effect only when HealthCheckProtocol is set to HTTP or HTTPS.

Forwarding rule path for health check. The length is 1-80 characters. Only letters, digits, characters -/.%?#&=, and extended characters _;~!（)*[]@$^:',+ can be used. The URL must start with a forward slash (/).

The forwarding rule path parameter takes effect only when HealthCheckProtocol is HTTP/HTTPS/GRPC/GRPCS.

Health check access to the backend server port. Value range: 0-65535. Default value: 0, which means the backend server port.

Health check protocol. Valid values:

• HTTP (default): Sends HEAD or GET requests to simulate browser access requests and check whether the server application is healthy.
• HTTPS: Sends HEAD or GET requests to simulate browser access requests and check whether the server application is healthy. (Encrypts data and is more secure than HTTP.)
• TCP: Sends SYN handshake messages to detect whether the server port is alive.
• GRPC: Sends POST or GET requests to check whether the server application is healthy.
• GRPCS: Sends POST or GET requests to check whether the server application is healthy.

Health check template name. It is 1-255 characters long and can contain digits, upper- and lower-case letters, Chinese characters, half-width periods (.), underscores (_), and dashes (-).

Health check response timeout, in seconds.
Value range: 2-60.
Default value: 2.

Threshold for determining an unhealthy backend service. After how many consecutive health check failures, the backend service status changes from healthy to unhealthy.
Value range: 2-10.
Default value: 2.