tencent cloud



Last updated: 2023-08-07 17:53:18

1. API Description

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

This API is used to upgrade a launch configuration.

  • This API is used to upgrade a launch configuration in a "completely overriding" manner, i.e., it uniformly sets a new configuration according to the API parameters regardless of the original parameters. If optional fields are left empty, their default values will be used.
  • After the launch configuration is upgraded, the existing instances that have been created by it will not be changed, but new instances will be created according to the new configuration.

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

We recommend you to use API Explorer
Try it
API Explorer provides a range of capabilities, including online call, signature authentication, SDK code generation, and API quick search. It enables you to view the request, response, and auto-generated examples.

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: UpgradeLaunchConfiguration.
Version Yes String Common Params. The value used for this API: 2018-04-19.
Region No String Common Params. This parameter is not required for this API.
LaunchConfigurationId Yes String Launch configuration ID.
ImageId Yes String Image ID in the format of img-xxx. There are three types of images:
  • Public images
  • Custom images
  • Shared images

  • You can obtain the image IDs in the CVM console.
  • You can also use the DescribeImages and look for ImageId in the response.
  • InstanceTypes.N Yes Array of String List of instance models. Different instance models specify different resource specifications. Up to 5 instance models can be supported.
    LaunchConfigurationName Yes String Display name of the launch configuration, which can contain letters, digits, underscores and hyphens (-), and dots. Up to of 60 bytes allowed..
    DataDisks.N No Array of DataDisk Information of the instance's data disk configuration. If this parameter is not specified, no data disk is purchased by default. Up to 11 data disks can be supported.
    EnhancedService No EnhancedService Enhanced services. You can use this parameter to specify whether to enable services such as Cloud Security and Cloud Monitor. If this parameter is not specified, Cloud Monitor and Cloud Security will be enabled by default.
    InstanceChargeType No String Instance billing type. CVM instances are POSTPAID_BY_HOUR by default.

  • POSTPAID_BY_HOUR: Pay-as-you-go on an hourly basis

  • SPOTPAID: Bidding
  • InstanceMarketOptions No InstanceMarketOptionsRequest Market options of the instance, such as parameters related to spot instances. This parameter is required for spot instances.
    InstanceTypesCheckPolicy No String Instance type verification policy. Value range: ALL, ANY. Default value: ANY.

  • ALL: The verification will success only if all instance types (InstanceType) are available; otherwise, an error will be reported.

  • ANY: The verification will success if any instance type (InstanceType) is available; otherwise, an error will be reported.

    Common reasons why an instance type is unavailable include stock-out of the instance type or the corresponding cloud disk.
    If a model in InstanceTypes does not exist or has been discontinued, a verification error will be reported regardless of the value of InstanceTypesCheckPolicy.
  • InternetAccessible No InternetAccessible Configuration of public network bandwidth. If this parameter is not specified, 0 Mbps will be used by default.
    LoginSettings No LoginSettings Login settings of the instance. You can use this parameter to set the login method, password, and key of the instance or keep the login settings of the original image. By default, a random password will be generated and sent to you via the Message Center.
    ProjectId No Integer Project ID of the instance. Leave it blank as the default.
    SecurityGroupIds.N No Array of String The security group to which the instance belongs. This parameter can be obtained by calling the SecurityGroupId field in the returned value of DescribeSecurityGroups. If this parameter is not specified, no security group will be bound by default.
    SystemDisk No SystemDisk System disk configuration of the instance. If this parameter is not specified, the default value will be used.
    UserData No String Base64-encoded custom data of up to 16 KB.
    InstanceTags.N No Array of InstanceTag List of tags. This parameter is used to bind up to 10 tags to newly added instances.
    CamRoleName No String CAM role name, which can be obtained from the roleName field in the return value of the DescribeRoleList API.
    HostNameSettings No HostNameSettings CVM hostname settings.
    InstanceNameSettings No InstanceNameSettings Settings of CVM instance names
    InstanceChargePrepaid No InstanceChargePrepaid Details of the monthly subscription, including the purchase period, auto-renewal. It is required if the InstanceChargeType is PREPAID.
    DiskTypePolicy No String Selection policy of cloud disks. Default value: ORIGINAL. Valid values:

  • ORIGINAL: uses the configured cloud disk type

  • AUTOMATIC: automatically chooses an available cloud disk type
  • IPv6InternetAccessible No IPv6InternetAccessible IPv6 public network bandwidth configuration. If the IPv6 address is available in the new instance, public network bandwidth can be allocated to the IPv6 address. This parameter is invalid if Ipv6AddressCount of the scaling group associated with the launch configuration is 0.

    3. Output Parameters

    Parameter Name Type Description
    RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

    4. Example

    Example1 Upgrading a launch configuration with required parameters

    This example shows you how to upgrade a launch configuration by only assigning values for the required parameters (launch configuration name, instance model, and image ID) and using system default values for other parameters. The specific configuration is as follows: launch configuration name: as_test, instance model: Standard II 1C1G (S2.SMALL1), image ID: img-8toqc6s3.

    Input Example

    POST / HTTP/1.1
    Host: as.tencentcloudapi.com
    Content-Type: application/json
    X-TC-Action: UpgradeLaunchConfiguration
    <Common request parameters>
        "ImageId": "img-8toqc6s3",
        "LaunchConfigurationName": "as_test",
        "InstanceTypes": [
        "LaunchConfigurationId": "asc-gj14vczi"

    Output Example

        "Response": {
            "RequestId": "d68a3364-a933-4664-bee4-fb89b8c69b49"

    Example2 Upgrading a launch configuration with detailed parameters

    This example shows you how to upgrade a launch configuration with the following configurations. Launch configuration name: as_test; image ID: img-8toqc6s3; model: Standard II 1C1G (S2.SMALL1); system disk: 50 GB local disk; data disk: 100 GB HDD cloud disk; public network billing: pay-as-you-go by traffic on an hourly basis; public network bandwidth cap: 5 Mbps; public IP: assigned; login method: key; Cloud Monitor service: enabled; Anti-DDoS: enabled.

    Input Example

    POST / HTTP/1.1
    Host: as.tencentcloudapi.com
    Content-Type: application/json
    X-TC-Action: UpgradeLaunchConfiguration
    <Common request parameters>
        "SystemDisk": {
            "DiskSize": "50",
            "DiskType": "LOCAL_BASIC"
        "LoginSettings": {
            "KeyIds": [
        "LaunchConfigurationId": "asc-gj14vczi",
        "InstanceTypes": [
        "ImageId": "img-8toqc6s3",
        "EnhancedService": {
            "SecurityService": {
                "Enabled": "TRUE"
            "MonitorService": {
                "Enabled": "TRUE"
        "LaunchConfigurationName": "as_test",
        "InternetAccessible": {
            "PublicIpAssigned": "TRUE",
            "InternetChargeType": "TRAFFIC_POSTPAID_BY_HOUR",
            "InternetMaxBandwidthOut": "5"
        "DataDisks": [
                "Encrypt": "FALSE",
                "DeleteWithInstance": "TRUE",
                "DiskSize": "1000",
                "ThroughputPerformance": "100",
                "DiskType": "CLOUD_HSSD"

    Output Example

        "Response": {
            "RequestId": "1430a2d3-eb73-44c6-8316-218c4562a85c"

    5. Developer Resources


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

    Command Line Interface

    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
    CallCvmError CVM API call failed.
    InternalError An internal error occurred.
    InvalidImageId.NotFound The image cannot be found.
    InvalidParameter.ActionNotFound Invalid Action request.
    InvalidParameter.Conflict Multiple parameters specified conflict and cannot co-exist.
    InvalidParameter.InvalidCombination Invalid parameter combination.
    InvalidParameter.MustOneParameter A parameter is missing. One of the two parameters must be specified.
    InvalidParameter.ParameterDeprecated This parameter has been disused.
    InvalidParameter.ParameterMustBeDeleted Some parameters cannot coexist and should be deleted.
    InvalidParameterValue Wrong parameter value.
    InvalidParameterValue.AccountNotSupportBandwidthPackageId The bandwidth package ID is not supported in this account.
    InvalidParameterValue.CvmConfigurationError Exception with CVM parameter validation.
    InvalidParameterValue.CvmError Exception with CVM parameter validation.
    InvalidParameterValue.HostNameIllegal Invalid hostname
    InvalidParameterValue.IPv6InternetChargeType The specified IPv6 public network bandwidth billing mode is invalid.
    InvalidParameterValue.InstanceTypeNotSupported The instance type is not supported.
    InvalidParameterValue.InvalidImageId Invalid image ID.
    InvalidParameterValue.InvalidInstanceType Invalid instance type.
    InvalidParameterValue.InvalidLaunchConfigurationId Invalid launch configuration ID.
    InvalidParameterValue.LaunchConfigurationNameDuplicated The launch configuration name already exists.
    InvalidParameterValue.MissingBandwidthPackageId The bandwidth package ID is required.
    InvalidParameterValue.NotStringTypeFloat The value should be a floating point string.
    InvalidParameterValue.ProjectIdNotFound The project ID does not exist.
    InvalidParameterValue.Range The value is outside the specified range.
    InvalidParameterValue.UserDataFormatError Incorrect UserData format.
    InvalidParameterValue.UserDataSizeExceeded The UserData is too long.
    MissingParameter Parameter missing.
    ResourceNotFound.BandwidthPackageIdNotFound The specified bandwidth package ID is not found.
    ResourceNotFound.LaunchConfigurationIdNotFound The specified launch configuration does not exist.
    Contact Us

    Contact our sales team or business advisors to help your business.

    Technical Support

    Open a ticket if you're looking for further assistance. Our Ticket is 7x24 avaliable.

    7x24 Phone Support