CreateLoadBalancer

1. API Description

Domain name for API request: teo.tencentcloudapi.com.

This API is used to create a LoadBalancer. For details, see Quickly Create Load Balancers. The load balancing feature is in beta test. If you need to use it, contact us.

A maximum of 20 requests can be initiated per second for this API.

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2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name	Required	Type	Description
Action	Yes	String	Common Params. The value used for this API: CreateLoadBalancer.
Version	Yes	String	Common Params. The value used for this API: 2022-09-01.
Region	No	String	Common Params. This parameter is not required.
ZoneId	Yes	String	Zone ID.
Name	Yes	String	LoadBalancer name, which can contain 1 to 200 characters, including a-z, A-Z, 0-9, underscores (_), and hyphens (-).
Type	Yes	String	LoadBalancer type. Valid values: HTTP: HTTP-specific LoadBalancer. It supports adding HTTP-specific and general origin server groups. It can only be referenced by site acceleration services (such as domain name service and rule engine). GENERAL: general LoadBalancer. It only supports adding general origin server groups. It can be referenced by site acceleration services (such as domain name service and rule engine) and Layer-4 proxy.
OriginGroups.N	Yes	Array of OriginGroupInLoadBalancer	List of origin server groups and their corresponding disaster recovery scheduling priorities. For details, refer to Sample Scenario in Quickly Create Load Balancers.
HealthChecker	No	HealthChecker	Health check policy. For details, refer to Health Check Policies. If left empty, health check is disabled by default.
SteeringPolicy	No	String	Traffic scheduling policy among origin server groups. Valid values: Priority: Perform failover according to priority. The default value is Priority.
FailoverPolicy	No	String	Request retry policy when access to an origin server fails. For details, refer to Introduction to Request Retry Strategy. Valid values: OtherOriginGroup: After a single request fails, retry with another origin server within the next lower priority origin server group. OtherRecordInOriginGroup: After a single request fails, retry with another origin server within the same origin server group. The default value is OtherRecordInOriginGroup.

3. Output Parameters

Parameter Name	Type	Description
InstanceId	String	CLB instance ID.
RequestId	String	The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

4. Example

Example1 Creating a LoadBalancer with the Health Check Policy Set to ICMP Ping

This example shows you how to create a LoadBalancer by selecting ICMP Ping for a health check policy and OtherRecordInOriginGroup for a request retry policy.

Input Example

POST / HTTP/1.1
Host: teo.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CreateLoadBalancer
<Common request parameters>

{
    "ZoneId": "zone-2ju9lrnpaxol",
    "Name": "ICMP-LB",
    "Type": "HTTP",
    "OriginGroups": [
        {
            "Priority": "priority_1",
            "OriginGroupId": "og-30l5kv5z2bse"
        },
        {
            "Priority": "priority_2",
            "OriginGroupId": "og-30l5kv5z2bse"
        }
    ],
    "HealthChecker": {
        "Type": "ICMP Ping",
        "Interval": 30,
        "Timeout": 5,
        "HealthThreshold": 3,
        "CriticalThreshold": 2
    },
    "SteeringPolicy": "Pritory",
    "FailoverPolicy": "OtherRecordInOriginGroup"
}

Output Example

{
    "Response": {
        "RequestId": "c2967195-cfd7-4bd0-ac05-d2eaccde6909",
        "InstanceId": "lb-2osw7z07dnyu"
    }
}

Example2 Creating a LoadBalancer with the Health Check Policy Set to HTTPS

This example shows you how to create a LoadBalancer by selecting HTTPS for a health check policy and OtherRecordInOriginGroup for a request retry policy.

Input Example

POST / HTTP/1.1
Host: teo.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CreateLoadBalancer
<Common request parameters>

{
    "ZoneId": "zone-2ju9lrnpaxol",
    "Name": "HTTPS-LB",
    "Type": "GENERAL",
    "OriginGroups": [
        {
            "Priority": "priority_1",
            "OriginGroupId": "og-30l5kv5z2bse"
        },
        {
            "Priority": "priority_2",
            "OriginGroupId": "og-30l5kv5z2bse"
        },
        {
            "Priority": "priority_3",
            "OriginGroupId": "og-30l5kv5z2bse"
        }
    ],
    "HealthChecker": {
        "Type": "HTTPS",
        "Path": "www.example.com/test",
        "Port": 80,
        "Interval": 30,
        "Method": "HEAD",
        "ExpectedCodes": [
            "200",
            "500",
            "501",
            "502",
            "503",
            "504",
            "505",
            "507",
            "520",
            "521",
            "525",
            "530",
            "544",
            "562",
            "567",
            "599"
        ],
        "FollowRedirect": "true",
        "Headers": [
            {
                "Key": "header1",
                "Value": "header1"
            },
            {
                "Key": "header2",
                "Value": "header2"
            },
            {
                "Key": "header3",
                "Value": "header3"
            }
        ],
        "Timeout": 5,
        "HealthThreshold": 3,
        "CriticalThreshold": 2
    },
    "SteeringPolicy": "Pritory",
    "FailoverPolicy": "OtherRecordInOriginGroup"
}

Output Example

{
    "Response": {
        "RequestId": "c2967195-cfd7-4bd0-ac05-d2eaccde6909",
        "InstanceId": "lb-2osw7z17dnyu"
    }
}

Example3 Creating a LoadBalancer with the Health Check Policy Set to HTTP

This example shows you how to create a LoadBalancer by selecting HTTP for a health check policy and OtherRecordInOriginGroup for a request retry policy.

Input Example

POST / HTTP/1.1
Host: teo.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CreateLoadBalancer
<Common request parameters>

{
    "ZoneId": "zone-2ju9lrnpaxol",
    "Name": "HTTP-LB",
    "Type": "GENERAL",
    "OriginGroups": [
        {
            "Priority": "priority_1",
            "OriginGroupId": "og-30l5kv5z2bse"
        },
        {
            "Priority": "priority_2",
            "OriginGroupId": "og-30l5kv5z2bse"
        },
        {
            "Priority": "priority_3",
            "OriginGroupId": "og-30l5kv5z2bse"
        }
    ],
    "HealthChecker": {
        "Type": "HTTP",
        "Path": "www.example.com/test",
        "Port": 80,
        "Interval": 30,
        "Method": "HEAD",
        "ExpectedCodes": [
            "200",
            "500",
            "501",
            "502",
            "503",
            "504",
            "505",
            "507",
            "520",
            "521",
            "525",
            "530",
            "544",
            "562",
            "567",
            "599"
        ],
        "FollowRedirect": "true",
        "Headers": [
            {
                "Key": "header1",
                "Value": "header1"
            },
            {
                "Key": "header2",
                "Value": "header2"
            },
            {
                "Key": "header3",
                "Value": "header3"
            }
        ],
        "Timeout": 5,
        "HealthThreshold": 3,
        "CriticalThreshold": 2
    },
    "SteeringPolicy": "Pritory",
    "FailoverPolicy": "OtherRecordInOriginGroup"
}

Output Example

{
    "Response": {
        "RequestId": "c2967195-cfd7-4bd0-ac05-d2eaccde6909",
        "InstanceId": "lb-2osw7z07dnyu"
    }
}

Example4 Creating a LoadBalancer with the Health Check Policy Set to TCP

This example shows you how to create a LoadBalancer by selecting TCP for a health check policy and OtherOriginGroup for a request retry policy.

Input Example

POST / HTTP/1.1
Host: teo.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CreateLoadBalancer
<Common request parameters>

{
    "ZoneId": "zone-2ju9lrnsaxol",
    "Name": "TCP-LB",
    "Type": "HTTP",
    "OriginGroups": [
        {
            "Priority": "priority_1",
            "OriginGroupId": "og-30l5kv5z2bse"
        },
        {
            "Priority": "priority_2",
            "OriginGroupId": "og-30l5kv5z2bse"
        }
    ],
    "HealthChecker": {
        "Type": "TCP",
        "Port": 80,
        "Interval": 30,
        "Timeout": 5,
        "HealthThreshold": 3,
        "CriticalThreshold": 2
    },
    "SteeringPolicy": "Pritory",
    "FailoverPolicy": "OtherOriginGroup"
}

Output Example

{
    "Response": {
        "RequestId": "afe08af5-51f3-4f2e-911b-987ebb88a572",
        "InstanceId": "lb-2osbdyhu19iy"
    }
}

Example5 Creating a LoadBalancer with the Health Check Policy Set to UDP

This example shows you how to create a LoadBalancer by selecting UDP for a health check policy and OtherOriginGroup for a request retry policy.

Input Example

POST / HTTP/1.1
Host: teo.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CreateLoadBalancer
<Common request parameters>

{
    "ZoneId": "zone-2ju9lsnpaxol",
    "Name": "UDP-LB",
    "Type": "GENERAL",
    "OriginGroups": [
        {
            "Priority": "priority_1",
            "OriginGroupId": "og-30l5kv5z215e"
        },
        {
            "Priority": "priority_2",
            "OriginGroupId": "og-30l5kv5z2bse"
        }
    ],
    "HealthChecker": {
        "Type": "UDP",
        "Port": 80,
        "SendContext": "requestcontent",
        "RecvContext": "responsecontent",
        "Interval": 30,
        "Timeout": 5,
        "HealthThreshold": 3,
        "CriticalThreshold": 2
    },
    "SteeringPolicy": "Pritory",
    "FailoverPolicy": "OtherOriginGroup"
}

Output Example

{
    "Response": {
        "RequestId": "57d0154c-f9ab-42b7-ad83-232106647ff3",
        "InstanceId": "lb-2oswhs520uqe"
    }
}

Example6 Creating a LoadBalancer with Probe Disabled

This example shows you how to create a LoadBalancer by selecting OtherOriginGroup for a request retry policy without enabling any health check policy. It is suitable for scenarios with only primary and replica origin servers configured.

Input Example

POST / HTTP/1.1
Host: teo.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CreateLoadBalancer
<Common request parameters>

{
    "ZoneId": "zone-2ju9lrnpaxol",
    "Name": "NoCheck-LB",
    "Type": "HTTP",
    "OriginGroups": [
        {
            "Priority": "priority_1",
            "OriginGroupId": "og-30l5kv5z2bse"
        },
        {
            "Priority": "priority_2",
            "OriginGroupId": "og-30l5kv5z2ase"
        }
    ],
    "HealthChecker": {
        "Type": "NoCheck"
    },
    "SteeringPolicy": "Pritory",
    "FailoverPolicy": "OtherOriginGroup"
}

Output Example

{
    "Response": {
        "RequestId": "2c619f7f-27e9-43c5-b42c-68dcca803d35",
        "InstanceId": "lb-2osw2ssziowm"
    }
}

5. Developer Resources

SDK

TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

Tencent Cloud CLI 3.0

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code	Description
InvalidParameter.LoadBalancerNameRepeated	The LoadBalancer names under the same site should be unique.
InvalidParameter.OriginGroupTypeCanNotMatchLBType	The type of the origin server group does not match the LoadBalancer type.
InvalidParameter.SomeOriginGroupNotExist	Some bound origin server groups do not exist.
LimitExceeded.LoadBalancingCountLimitExceeded	The number of LoadBalancers exceeds the limit.

1. API Description
2. Input Parameters
3. Output Parameters
4. Example
Example1 Creating a LoadBalancer with the Health Check Policy Set to ICMP Ping
Example2 Creating a LoadBalancer with the Health Check Policy Set to HTTPS
Example3 Creating a LoadBalancer with the Health Check Policy Set to HTTP
Example4 Creating a LoadBalancer with the Health Check Policy Set to TCP
Example5 Creating a LoadBalancer with the Health Check Policy Set to UDP
Example6 Creating a LoadBalancer with Probe Disabled
5. Developer Resources
SDK
Command Line Interface
6. Error Code