project_id

Yes

String

Project ID.

name

Yes

String

Instance name.

An instance name starts with a letter, consists of 4 to 64 characters, and can contain only letters, digits, underscores (_), and hyphens (-).

description

No

String

Instance description.

The description can contain a maximum of 1024 characters.

engine

Yes

String

Message engine. Value: kafka.

engine_version

Yes

String

Version of the message engine. Value: 1.1.0 and 2.3.0.

specification

Yes

String

Bandwidth of a Kafka instance, that is, the maximum amount of data transferred per unit time. Unit: MB. Options:

• 100MB

• 300MB

• 600MB

• 1200MB

storage_space

Yes

Integer

Message storage space in GB.

• Value range: 600–90,000 GB for 100 MB/s Kafka instances

• Value range: 1200–90,000 GB for 300 MB/s Kafka instances

• Value range: 2400–90,000 GB for 600 MB/s Kafka instances

• Value range: 4800–90,000 GB for 1200 MB/s Kafka instances

partition_num

No

Integer

Maximum number of partitions in a Kafka instance.

• Value: 300 for 100 MB/s Kafka instances

• Value: 900 for 300 MB/s Kafka instances

• Value: 1800 for 600 MB/s Kafka instances

• Value: 1800 for 1200 MB/s Kafka instances

access_user

No

String

This parameter is mandatory when ssl_enable is set to true. This parameter is invalid when ssl_enable is set to false.

The username must be 4 to 64 characters long and can contain only letters, digits, and hyphens (-).

password

No

String

This parameter is mandatory when ssl_enable is set to true. This parameter is invalid when ssl_enable is set to false.

Instance password.

The password must meet the following complexity requirements:

• Can be 8 to 32 characters long.

• Contains at least two of the following character types:

• Lowercase letters

• Uppercase letters

• Digits

• Special characters `~!@#$%^&*()-_=+|[{}]:'"",<.>/?

vpc_id

Yes

String

VPC ID.

To obtain the value, log in to the VPC console, and click the name of a VPC to view the VPC ID on the displayed details page.

security_group_id

Yes

String

ID of the security group to which the instance belongs.

To obtain the value, log in to the VPC console. Choose Access Control > Security Groups in the navigation pane. On the Security Groups page, click the target security group. You can view the security group ID on the displayed page.

subnet_id

Yes

String

Subnet information.

To obtain the value, log in to the VPC console and click the target subnet on the Subnets page. You can view the network ID on the displayed page.

available_zones

Yes

Array of strings

ID of the AZ where instance brokers reside and which has available resources. This parameter cannot be empty or null. A Kafka instance can be deployed in 1 AZ or at least 3 AZs. When specifying AZs for brokers, separate multiple AZs with commas (,).

product_id

Yes

String

Product ID.

kafka_manager_user

Yes

String

Username for logging in to Kafka Manager. The username consists of 4 to 64 characters and can contain only letters, digits, and hyphens (-).

kafka_manager_password

Yes

String

Password for logging in to Kafka Manager.

The password must meet the following complexity requirements:

• Can be 8 to 32 characters long.

• Contains at least two of the following character types:

• Lowercase letters

• Uppercase letters

• Digits

• Special characters `~!@#$%^&*()-_=+|[{}]:'"",<.>/?

maintain_begin

No

String

Time at which a maintenance time window starts. Format: HH:mm.

• The start time and end time of the maintenance time window must indicate the time segment of a supported maintenance time window.

• The start time must be set to 22:00, 02:00, 06:00, 10:00, 14:00, or 18:00.

• The start time and end time must be set in pairs. If the start time is left blank, the end time must also be left blank. In this case, the system automatically sets the start time to 02:00.

maintain_end

No

String

Time at which a maintenance time window ends. Format: HH:mm.

• The start time and end time of the maintenance time window must indicate the time segment of a supported maintenance time window.

• The end time is four hours later than the start time. For example, if the start time is 22:00, the end time is 02:00.

• The start time and end time must be set in pairs. If the end time is left blank, the start time is also left blank. In this case, the system automatically sets the end time to 06:00.

enable_publicip

No

Boolean

Whether to enable public access for the instance. By default, public access is disabled.

• true: enable

• false: disable

public_bandwidth

No

Integer

Public network bandwidth. Unit: Mbit/s. Value range:

• For a 100 MB/s Kafka instance, the value must be a multiple of the number of brokers and fall in the range from 3 to 900.

• For a 300 MB/s Kafka instance, the value must be a multiple of the number of brokers and fall in the range from 3 to 900.

• For a 600 MB/s Kafka instance, the value must be a multiple of the number of brokers and fall in the range from 4 to 1200.

• For a 1200 MB/s Kafka instance, the value must be a multiple of the number of brokers and fall in the range from 8 to 2400.

publicip_id

No

String

ID of the EIP bound to an instance.

Use commas (,) to separate multiple EIP IDs.

This parameter is mandatory if public access is enabled (that is, enable_publicip is set to true).

ssl_enable

No

Boolean

Whether to enable SSL-encrypted access.

• true: enable

• false: disable

retention_policy

No

String

Action to be taken when the memory usage reaches the disk capacity threshold.

Possible values:

• produce_reject: New messages cannot be created.

• time_base: The earliest messages are deleted.

connector_enable

No

Boolean

Whether to enable message dumping.

By default, message dumping is disabled.

enable_auto_topic

No

Boolean

Whether to enable automatic topic creation.

• true: enable

• false: disable

If it is enabled, a topic will be automatically created with 3 partitions and 3 replicas when a message is created in or retrieved from a topic that does not exist.

storage_spec_code

Yes

String

Storage I/O specification. Options:

• dms.physical.storage.high or dms.physical.storage.ultra when the parameter specification is 100MB.

• dms.physical.storage.high or dms.physical.storage.ultra when the parameter specification is 300MB.

• dms.physical.storage.ultra when the parameter specification is 600MB.

• dms.physical.storage.ultra when the parameter specification is 1200MB.

enterprise_project_id

No

String

Enterprise project ID. This parameter is mandatory for an enterprise project account.

tags

No

Array of TagEntity objects

Tags.

key

No

String

Tag key, which can contain a maximum of 36 Unicode characters.

The key cannot be left blank or an empty string.

It cannot contain nonprintable ASCII (0–31) characters and the following special characters: =*<>,|/

value

No

String

Tag value, which can contain a maximum of 43 Unicode characters.

The value cannot be left blank but can be an empty string.

It cannot contain nonprintable ASCII (0–31) characters and the following special characters: =*<>,|/

instance_id

String

Instance ID.

200

An instance is created successfully.