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ServerGroupProps

Properties for defining a ServerGroup.

See https://www.alibabacloud.com/help/ros/developer-reference/aliyun-alb-servergroup

Initializer 

import com.aliyun.ros.cdk.alb.ServerGroupProps;
ServerGroupProps.builder()
    .healthCheckConfig(IResolvable)
    .healthCheckConfig(HealthCheckConfigProperty)
    .serverGroupName(java.lang.String)
    .serverGroupName(IResolvable)
    .vpcId(java.lang.String)
    .vpcId(IResolvable)
//  .connectionDrainConfig(IResolvable)
//  .connectionDrainConfig(ConnectionDrainConfigProperty)
//  .protocol(java.lang.String)
//  .protocol(IResolvable)
//  .resourceGroupId(java.lang.String)
//  .resourceGroupId(IResolvable)
//  .scheduler(java.lang.String)
//  .scheduler(IResolvable)
//  .serverGroupType(java.lang.String)
//  .serverGroupType(IResolvable)
//  .serviceName(java.lang.String)
//  .serviceName(IResolvable)
//  .slowStartConfig(IResolvable)
//  .slowStartConfig(SlowStartConfigProperty)
//  .stickySessionConfig(IResolvable)
//  .stickySessionConfig(StickySessionConfigProperty)
//  .tags(java.util.List<TagsProperty>)
//  .uchConfig(IResolvable)
//  .uchConfig(UchConfigProperty)
//  .upstreamKeepaliveEnabled(java.lang.Boolean)
//  .upstreamKeepaliveEnabled(IResolvable)
    .build();

Properties

Name Type Description
healthCheckConfig com.aliyun.ros.cdk.core.IResolvable OR HealthCheckConfigProperty Property healthCheckConfig: The configuration of health checks.
serverGroupName java.lang.String OR com.aliyun.ros.cdk.core.IResolvable Property serverGroupName: The name of the server group.
vpcId java.lang.String OR com.aliyun.ros.cdk.core.IResolvable Property vpcId: The ID of the virtual private cloud (VPC).
connectionDrainConfig com.aliyun.ros.cdk.core.IResolvable OR ConnectionDrainConfigProperty Property connectionDrainConfig: Configuration related to graceful connection interruption.Enable graceful connection interruption. After the backend server is removed or the health check fails, the load balancing allows the existing connection to be transmitted normally within a certain period of time.Note: Basic Edition instances do not support enabling graceful connection interruption. Only Standard Edition and WAF Enhanced Edition instances support it.Server type and IP type server group support graceful connection interruption. Function Compute type does not support it.
protocol java.lang.String OR com.aliyun.ros.cdk.core.IResolvable Property protocol: The backend protocol.
resourceGroupId java.lang.String OR com.aliyun.ros.cdk.core.IResolvable Property resourceGroupId: The ID of the resource group.
scheduler java.lang.String OR com.aliyun.ros.cdk.core.IResolvable Property scheduler: The scheduling algorithm.
serverGroupType java.lang.String OR com.aliyun.ros.cdk.core.IResolvable Property serverGroupType: The type of the server group.
serviceName java.lang.String OR com.aliyun.ros.cdk.core.IResolvable Property serviceName: This parameter is available only if the ALB Ingress controller is used.
slowStartConfig com.aliyun.ros.cdk.core.IResolvable OR SlowStartConfigProperty Property slowStartConfig: Slow start related configuration.After slow start is enabled, the backend server newly added to the backend server group will be preheated within the set time period, and the number of requests forwarded to the server will increase linearly.Note: Basic Edition instances do not support slow start, only Standard Edition and WAF Enhanced Edition instances support it.Server type and IP type server groups support slow start configuration, but Function Compute type does not.Slow start can only be enabled when the backend scheduling algorithm is the weighted polling algorithm.
stickySessionConfig com.aliyun.ros.cdk.core.IResolvable OR StickySessionConfigProperty Property stickySessionConfig: The configuration of session persistence.
tags java.util.List<TagsProperty> Property tags: Tags to attach to instance.
uchConfig com.aliyun.ros.cdk.core.IResolvable OR UchConfigProperty Property uchConfig: URL consistency hash parameter configuration.
upstreamKeepaliveEnabled java.lang.Boolean OR com.aliyun.ros.cdk.core.IResolvable Property upstreamKeepaliveEnabled: Whether to enable upstream keepalive.

healthCheckConfigRequired 

public java.lang.Object getHealthCheckConfig();

Property healthCheckConfig: The configuration of health checks.

serverGroupNameRequired 

public java.lang.Object getServerGroupName();
  • Type: java.lang.String OR com.aliyun.ros.cdk.core.IResolvable

Property serverGroupName: The name of the server group.

The name must be 2 to 128 characters in length, and can contain letters, digits, periods (.), underscores (_), and hyphens (-). The name must start with a letter.

vpcIdRequired 

public java.lang.Object getVpcId();
  • Type: java.lang.String OR com.aliyun.ros.cdk.core.IResolvable

Property vpcId: The ID of the virtual private cloud (VPC).

You can add only servers that are deployed in the specified VPC to the server group. Note: This parameter is required if the ServerGroupType parameter is set to Instance or Ip. Note: This parameter takes effect when the ServerGroupType parameter is set to Instance or Ip.

connectionDrainConfigOptional 

public java.lang.Object getConnectionDrainConfig();

Property connectionDrainConfig: Configuration related to graceful connection interruption.Enable graceful connection interruption. After the backend server is removed or the health check fails, the load balancing allows the existing connection to be transmitted normally within a certain period of time.Note: Basic Edition instances do not support enabling graceful connection interruption. Only Standard Edition and WAF Enhanced Edition instances support it.Server type and IP type server group support graceful connection interruption. Function Compute type does not support it.

protocolOptional 

public java.lang.Object getProtocol();
  • Type: java.lang.String OR com.aliyun.ros.cdk.core.IResolvable

Property protocol: The backend protocol.

Valid values: HTTP (default): The server group can be associated with HTTPS, HTTP, and QUIC listeners. HTTPS: The server group can be associated with HTTPS listeners. gRPC: The server group can be associated with HTTPS and QUIC listeners. Note: If the ServerGroupType parameter is set to Fc, you can set Protocol only to HTTP.

resourceGroupIdOptional 

public java.lang.Object getResourceGroupId();
  • Type: java.lang.String OR com.aliyun.ros.cdk.core.IResolvable

Property resourceGroupId: The ID of the resource group.

schedulerOptional 

public java.lang.Object getScheduler();
  • Type: java.lang.String OR com.aliyun.ros.cdk.core.IResolvable

Property scheduler: The scheduling algorithm.

Valid values: Wrr (default): The weighted round-robin algorithm is used. Backend servers that have higher weights receive more requests than those that have lower weights. Wlc: The weighted least connections algorithm is used. Requests are distributed based on the weights and the number of connections to backend servers. If two backend servers have the same weight, the backend server that has fewer connections is expected to receive more requests. Sch: The consistent hashing algorithm is used. Requests from the same source IP address are distributed to the same backend server. Note: This parameter takes effect when the ServerGroupType parameter is set to Instance or Ip.

serverGroupTypeOptional 

public java.lang.Object getServerGroupType();
  • Type: java.lang.String OR com.aliyun.ros.cdk.core.IResolvable

Property serverGroupType: The type of the server group.

Valid values: Instance (default): allows you add servers by specifying Ecs, Ens, or Eci. Ip: allows you to add servers by specifying IP addresses. Fc: allows you to add servers by specifying functions of Function Compute.

serviceNameOptional 

public java.lang.Object getServiceName();
  • Type: java.lang.String OR com.aliyun.ros.cdk.core.IResolvable

Property serviceName: This parameter is available only if the ALB Ingress controller is used.

In this case, set the parameter to the name of the Kubernetes Service that is associated with the server group.

slowStartConfigOptional 

public java.lang.Object getSlowStartConfig();

Property slowStartConfig: Slow start related configuration.After slow start is enabled, the backend server newly added to the backend server group will be preheated within the set time period, and the number of requests forwarded to the server will increase linearly.Note: Basic Edition instances do not support slow start, only Standard Edition and WAF Enhanced Edition instances support it.Server type and IP type server groups support slow start configuration, but Function Compute type does not.Slow start can only be enabled when the backend scheduling algorithm is the weighted polling algorithm.

stickySessionConfigOptional 

public java.lang.Object getStickySessionConfig();

Property stickySessionConfig: The configuration of session persistence.

Note: This parameter is required if the ServerGroupType parameter is set to Instance or Ip.

tagsOptional 

public java.util.List<TagsProperty> getTags();

Property tags: Tags to attach to instance.

Max support 20 tags to add during create instance. Each tag with two properties Key and Value, and Key is required.

uchConfigOptional 

public java.lang.Object getUchConfig();

Property uchConfig: URL consistency hash parameter configuration.

upstreamKeepaliveEnabledOptional 

public java.lang.Object getUpstreamKeepaliveEnabled();
  • Type: java.lang.Boolean OR com.aliyun.ros.cdk.core.IResolvable

Property upstreamKeepaliveEnabled: Whether to enable upstream keepalive.