Creating a Kafka Instance

project_id

Yes

String

Definition:

Project ID. For details, see Obtaining a Project ID.

Constraints:

N/A

Range:

N/A

Default Value:

N/A

name

Yes

String

Definition:

Instance name.

Constraints:

A username must start with a letter. It can contain 4 to 64 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

Range:

N/A

Default Value:

N/A

description

No

String

Definition:

Description of an instance.

Constraints:

0–1,024 characters

The backslash () and quotation mark (") are special characters for JSON messages. When using these characters in a parameter value, add the escape character () before the characters, for example, \\ and \".

Range:

N/A

Default Value:

N/A

engine

Yes

String

Definition:

Message engine.

Constraints:

N/A

Range:

kafka

Default Value:

N/A

engine_version

Yes

String

Definition:

Message engine version.

Constraints:

N/A

Range:

• 1.1.0

• 2.3.0

• 2.7

• 3.x

Default Value:

N/A

broker_num

Yes

Integer

Definition:

Number of brokers.

Constraints:

N/A

Range:

• For kafka.2u4g.cluster instances, the number range is 3–30.

• For kafka.4u8g.cluster instances, the number range is 3–30.

• For kafka.8u16g.cluster instances, the number range is 3–50.

• For kafka.12u24g.cluster instances, the number range is 3–50.

• For kafka.16u32g.cluster instances, the number range is 3–50.

Default Value:

N/A

storage_space

Yes

Integer

Definition:

Message storage space, in GB.

Constraints:

N/A

Range:

• 300–300,000 GB for c6.2u4g.cluster Kafka instances

• 300–600,000 GB for c6.4u8g.cluster Kafka instances

• 300–1,500,000 GB for c6.8u16g.cluster Kafka instances

• 300–1,500,000 GB for c6.12u24g.cluster Kafka instances

• 300–1,500,000 GB for c6.16u32g.cluster Kafka instances

Default Value:

N/A

access_user

No

String

Definition:

Authentication username.

Constraints:

Starts with a letter, consists of 4 to 64 characters, and contains only letters, digits, hyphens (-), and underscores (_). This parameter is mandatory when ssl_enable is set to true. This parameter is invalid when ssl_enable is set to false.

Range:

N/A

Default Value:

N/A

password

No

String

Definition:

Instance password.

Constraints:

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

• Can contain 8 to 32 characters.

• Must contain at least three of the following character types:

  • Lowercase letters

  • Uppercase letters

  • Digits

  • Special characters include (`~!@#$ %^&*()-_=+|[{}]:'",<.>/?) and spaces, and cannot start with a hyphen (-).

Range:

N/A

Default Value:

N/A

vpc_id

Yes

String

Definition:

VPC ID. You can call the API for querying VPCs to obtain the VPC ID. The VPC ID is in the response body. For details, see Virtual Private Cloud API Reference.

Constraints:

N/A

Range:

N/A

Default Value:

N/A

security_group_id

Yes

String

Definition:

Security group to which the instance belongs. You can call the API for querying security groups to obtain the security group ID. The security group ID is in the response body. For details, see Virtual Private Cloud API Reference.

Constraints:

N/A

Range:

N/A

Default Value:

N/A

subnet_id

Yes

String

Definition:

Subnet information. You can call the API for querying subnets to obtain the subnet ID. The subnet ID is in the response body. For details, see Virtual Private Cloud API Reference.

Constraints:

N/A

Range:

N/A

Default Value:

N/A

available_zones

Yes

Array of strings

Definition:

ID of the AZ where instance brokers reside and which has available resources. Obtain the AZ ID by referring to Listing AZ Information.

Constraints:

This parameter cannot be empty or null.

A Kafka instance should be deployed in 1 AZ or at least 3 AZs. If the instance is deployed in multiple AZs, separate the AZ IDs with commas (,).

product_id

Yes

String

Definition:

Product ID. Obtain the product ID from Querying Product Specifications List.

Constraints:

N/A

Range:

N/A

Default Value:

N/A

maintain_begin

No

String

Definition:

Start time of the maintenance time window.

Constraints:

The value is in HH:mm format.

Range:

N/A

Default Value:

N/A

maintain_end

No

String

Definition:

End time of the maintenance time window.

Constraints:

The value is in HH:mm format.

Range:

N/A

Default Value:

N/A

enable_publicip

No

Boolean

Definition:

Whether to enable public access.

Constraints:

N/A

Range:

• true: Yes

• false: No

Default Value:

false

tenant_ips

No

Array of strings

Definition:

You can manually specify IPv4 private IP addresses when creating an instance.

Constraints:

The number of specified private IP addresses must be equal to or less than the number of created brokers.

If the number of specified private IP addresses is less than the number of created brokers, the system automatically assigns private IP addresses to the remaining brokers.

publicip_id

No

String

Definition:

ID of the EIP bound to the instance.

Constraints:

Use commas (,) to separate multiple EIP IDs.

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

Range:

N/A

Default Value:

N/A

ssl_enable

No

Boolean

Definition:

Whether SASL is enabled.

Constraints:

N/A

Range:

• true: Yes

• false: No

Default Value:

N/A

kafka_security_protocol

No

String

Definition:

Security protocol to use after SASL is enabled.

Constraints:

If this parameter is left blank, SASL_SSL authentication is enabled by default. This parameter cannot be manually modified once the instance is created.

If the port_protocol parameter were used in instance creation, its value is used for the private and public network access security protocols and this parameter becomes invalid.

Range:

• SASL_SSL: Data is encrypted with SSL certificates for high-security transmission.

• SASL_PLAINTEXT: Data is transmitted in plaintext with username and password authentication.

Default Value:

N/A

sasl_enabled_mechanisms

No

Array of strings

Definition:

Authentication mechanism used after SASL is enabled.

Constraints:

This parameter is mandatory if SASL authentication is enabled (that is, ssl_enable is set to true). If this parameter is left blank, PLAIN authentication is enabled by default.

port_protocol

No

PortProtocol object

Definition:

Kafka instance access mode. PLAINTEXT indicates plaintext access. SASL_SSL or SASL_PLAINTEXT indicates ciphertext access.

Constraints:

Once enabled, this parameter cannot be disabled. Enable plaintext or ciphertext access, or both.

The security protocol for cross-VPC access is the same as that for intranet access. If both ciphertext access and plaintext access are enabled for intranet access, the security protocol for ciphertext access is preferentially used for cross-VPC access.

retention_policy

No

String

Definition:

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

Constraints:

N/A

Range:

• produce_reject: New messages cannot be created.

• time_base: The earliest messages are deleted.

Default Value:

N/A

ipv6_enable

No

Boolean

Definition:

Whether IPv6 is enabled.

Constraints:

This parameter is available only when the VPC supports IPv6.

Range:

• true: Yes

• false: No

Default Value:

false

disk_encrypted_enable

No

Boolean

Definition:

Whether disk encryption is enabled.

Constraints:

N/A

Range:

• true: Yes

• false: No

Default Value:

false

disk_encrypted_key

No

String

Definition:

Disk encryption key. If disk encryption is not enabled, this parameter is left blank.

Constraints:

N/A

Range:

N/A

Default Value:

N/A

connector_enable

No

Boolean

Definition:

Whether to enable Smart Connect. Smart Connect synchronizes data between Kafka and other cloud services or between two Kafka instances for backup or migration.

Constraints:

N/A

Range:

• true: Yes

• false: No

Default Value:

false

enable_auto_topic

No

Boolean

Definition:

Whether to enable automatic Kafka topic creation. Enabling this function automatically creates a topic when a message is produced in or consumed from a topic that does not exist.

Constraints:

N/A

Range:

• true: Yes

• false: No

Default Value:

false

storage_spec_code

Yes

String

Definition:

EVS type. For details about how to select a disk type, see "Disk Types and Disk Performance" in the EVS User Guide.

Constraints:

N/A

Range:

• dms.physical.storage.high.v2: high I/O EVS

• dms.physical.storage.ultra.v2: ultra-high I/O EVS

Default Value:

N/A

enterprise_project_id

No

String

Definition:

Enterprise project ID.

Constraints:

This parameter is mandatory for an enterprise project account.

Range:

N/A

Default Value:

N/A

tags

No

Array of TagEntity objects

Definition:

Tags of a Kafka instance.

Constraints:

N/A

arch_type

No

String

Definition:

CPU architecture.

Constraints:

N/A

Range:

• X86

Default Value:

N/A

vpc_client_plain

No

Boolean

Definition:

Private plaintext access in a VPC.

Constraints:

N/A

Range:

N/A

Default Value:

N/A

bss_param

No

BssParam object

Definition:

Parameter related to the yearly/monthly billing mode.

Constraints:

N/A

private_plain_enable

No

Boolean

Definition:

Whether to enable the private plaintext access mode.

Constraints:

N/A

Range:

• true: Enabled. The connection address is ip:9092 and the access protocol is PLAINTEXT.

• false: Disabled.

Default Value:

false

private_sasl_ssl_enable

No

Boolean

Definition:

Whether to enable the private ciphertext access mode using the security protocol SASL_SSL.

Constraints:

private_sasl_ssl_enable and private_sasl_plaintext_enable cannot be set to true at the same time.

Range:

• true: Enabled.

• false: Disabled.

Default Value:

false

private_sasl_plaintext_enable

No

Boolean

Definition:

Whether to enable the private ciphertext access mode using the security protocol SASL_PLAINTEXT.

Constraints:

private_sasl_plaintext_enable and private_sasl_ssl_enable cannot be set to true at the same time.

Range:

• true: Enabled. The connection address is ip:9093 and the access protocol is SASL_PLAINTEXT.

• false: Disabled.

Default Value:

false

public_plain_enable

No

Boolean

Definition:

Whether to enable the public plaintext access mode.

Constraints:

Enable public access before enabling public plaintext access.

Range:

• true: Enabled. The connection address is ip:9094 and the access protocol is PLAINTEXT.

• false: Disabled.

Default Value:

false

public_sasl_ssl_enable

No

Boolean

Definition:

Whether to enable the public ciphertext access using the security protocol SASL_SSL.

Constraints:

public_sasl_ssl_enable and public_sasl_plaintext_enable cannot be set to true at the same time.

If this parameter is set to true, public access needs to be enabled for the instance.

Range:

• true: Enabled. The connection address is ip:9095 and the access protocol is SASL_SSL.

• false: Disabled.

Default Value:

false

public_sasl_plaintext_enable

No

Boolean

Definition:

Whether to enable the public ciphertext access mode using the security protocol SASL_PLAINTEXT.

Constraints:

public_sasl_plaintext_enable and public_sasl_ssl_enable cannot be set to true at the same time.

If this parameter is set to true, public access needs to be enabled for the instance.

Range:

• true: Enabled. The connection address is ip:9095 and the access protocol is SASL_PLAINTEXT.

• false: Disabled.

Default Value:

false

key

No

String

Definition:

Tag key.

Constraints:

• Cannot be left blank.

• Must be unique for the same instance.

• Can contain 1 to 128 characters.

• Can contain letters, digits, spaces, and special characters _.:=+-@

• Cannot start with sys

• Cannot start or end with a space.

Range:

N/A

Default Value:

N/A

value

No

String

Definition:

Tag value.

Constraints:

• Can contain 0 to 255 characters.

• Can contain letters, digits, spaces, and special characters _.:=+-@

Range:

N/A

Default Value:

N/A

is_auto_renew

No

Boolean

Definition:

Indicates whether auto-renewal is enabled.

Constraints:

N/A

Range:

• true: Subscriptions will be automatically renewed.

• false: Subscriptions will not be automatically renewed.

Default Value:

false

charging_mode

No

String

Definition:

Billing mode.

Constraints:

N/A

Range:

• prePaid: indicates the yearly/monthly billing mode.

• postPaid: pay-per-use billing.

Default Value:

postPaid

is_auto_pay

No

Boolean

Definition:

Whether the order is automatically or manually paid.

Constraints:

N/A

Range:

• true: yes. The order will be automatically paid.

• false: The order must be manually paid.

Default Value:

false

period_type

No

String

Definition:

Subscription period type.

Constraints:

This parameter is valid and mandatory only when chargingMode is set to prePaid.

Range:

• month: monthly subscription

• year: yearly subscription

Default Value:

N/A

period_num

No

Integer

Definition:

Number of subscription periods.

Constraints:

This parameter is valid and mandatory only when chargingMode is set to prePaid.

Range:

• If periodType is month, the value ranges from 1 to 9.

• If periodType is year, the value ranges from 1 to 3.

Default Value:

N/A

instance_id

String

Definition:

Instance ID.

Range:

N/A

200

Instance created successfully.