Function

This API is used to create a single RDS DB instance, primary/standby DB instances, or a read replica.

Before calling an API, you need to understand the API in Authentication.
Before calling this API, obtain the required region and endpoint.

URI

URI format
POST https://{Endpoint}/v3/{project_id}/instances

Parameter description

**Table 1** Parameter description
Name	Mandatory	Description
project_id	Yes	Specifies the project ID of a tenant in a region. For details about how to obtain the project ID, see Obtaining a Project ID.

Request

**Table 2** Parameter description (creating single and primary/standby DB instances)
Name	Mandatory	Type	Description
name	Yes	String	Specifies the DB instance name. DB instances of the same type can have same names under the same tenant. The value must be 4 to 64 characters in length and start with a letter. It is case-sensitive and can contain only letters, digits, hyphens (-), and underscores (_).
datastore	Yes	Object	Specifies the database information. For details, see Table 4.
ha	No	Object	Specifies the HA configuration parameters, which are used when creating primary/standby DB instances. For details, see Table 5.
configuration_id	No	String	Specifies the parameter template ID. For details, see id in Table 3 in section Obtaining a Parameter Template List.
port	No	String	Specifies the database port information. The MySQL database port ranges from 1024 to 65535 (excluding 12017 and 33071, which are occupied by the RDS system and cannot be used). The PostgreSQL database port ranges from 2100 to 9500. The Microsoft SQL Server database port is 1433 or ranges from 2100 to 9500 (excluding 5355 and 5985). If this parameter is not set, the default value is as follows: For MySQL, the default value is 3306. For PostgreSQL, the default value is 5432. For Microsoft SQL Server, the default value is 1433.
password	Yes	String	Specifies the database password. Valid value: A database password must be 8 to 32 characters long and contain at least three types of the following characters: uppercase letters, lowercase letters, digits, and special characters. Different DB engines support different special characters. RDS for MySQL: ~!@#$%^-_=+?,()& RDS for PostgreSQL: ~!@#$%^-_=+?, RDS for SQL Server: ~!@#$%^*-_+?, You are advised to enter a strong password to improve security, preventing security risks such as brute force cracking. If the password you provide is regarded as a weak password by the system, you will be prompted to enter a stronger password.
backup_strategy	No	Object	Specifies the advanced backup policy. For details, see Table 6.
disk_encryption_id	No	String	Specifies the key ID for disk encryption. The default value is empty.
flavor_ref	Yes	String	Specifies the specification code. The value cannot be empty. For details, see spec_code in Table 3 in section Querying Database Specifications.
volume	Yes	Object	Specifies the volume information. For details, see Table 7.
region	Yes	String	Specifies the region ID. The value cannot be empty. For details about how to obtain this parameter value, see Regions and Endpoints.
availability_zone	Yes	String	Specifies the AZ ID. If the DB instance is not a single instance, you need to specify an AZ for each node of the instance and separate the AZs with commas (,). For details, see the example. The value cannot be empty. For details about how to obtain this parameter value, see Regions and Endpoints.
vpc_id	Yes	String	Specifies the VPC ID. To obtain this parameter value, use either of the following methods: Method 1: Log in to VPC console and view the VPC ID in the VPC details. Method 2: See the "Querying VPCs" section in the Virtual Private Cloud API Reference.
subnet_id	Yes	String	Specifies the network ID. To obtain this parameter value, use either of the following methods: Method 1: Log in to VPC console and click the target subnet on the Subnets page. You can view the network ID on the displayed page. Method 2: See the "Querying Subnets" section under "APIs" or the "Querying Networks" section under "OpenStack Neutron APIs" in Virtual Private Cloud API Reference.
data_vip	No	String	Specifies the private IP address of a DB instance. You can use the following methods to obtain the private IP address: Method 1: Log in to VPC console and click the target subnet on the Subnets page. You can view the subnet CIDR block on the displayed page. Method 2: See the "Querying Subnets" section under "APIs" in the Virtual Private Cloud API Reference.
security_group_id	Yes	String	Specifies the security group which the RDS DB instance belongs to. To obtain this parameter value, use either of the following methods: Method 1: Log in to VPC console. Choose Access Control > Security Groups in the navigation pane on the left. On the displayed page, click the target security group. You can view the security group ID on the displayed page. Method 2: See the "Querying Security Groups" section in the Virtual Private Cloud API Reference.
charge_info	No	Object	Specifies the billing information, which is pay-per-use. By default, pay-per-use is used. For details, see Table 8.
unchangeable_param	No	Object	Specifies the list of unchangeable parameters. The unchangeable parameters need to be specified before database initialization and cannot be modified after being specified. For details, see Table 9.
collation	No	String	This parameter applies only to Microsoft SQL Server DB instances. Value range: character sets queried in Querying the Available SQL Server Character Set.

**Table 3** Parameter for Replica creation (For Microsoft SQL Server, Only 2022_EE, 2019_EE and 2017_EE support the creation of read replicas and do not support the creation of single DB instances.)
Name	Mandatory	Type	Description
name	Yes	String	Specifies the DB instance name. DB instances of the same type can have same names under the same tenant. The value must be 4 to 64 characters in length and start with a letter. It is case-sensitive and can contain only letters, digits, hyphens (-), and underscores (_).
replica_of_id	Yes	String	Specifies the DB instance ID, which is used to create a read replica. For details, see id in Table 3 in section Querying Details About DB Instances.
disk_encryption_id	No	String	Specifies the key ID for disk encryption. The default value is empty.
flavor_ref	Yes	String	Specifies the specification code. The value cannot be empty. For details, see spec_code in Table 3 in section Querying Database Specifications.
volume	Yes	Object	Specifies the volume information. For details, see Table 7.
region	No	String	Specifies the region ID. Currently, read replicas can be created only in the same region as that of the primary DB instance. The value cannot be empty. For details about how to obtain this parameter value, see Regions and Endpoints.
availability_zone	Yes	String	Specifies the AZ ID. The value cannot be empty. For details about how to obtain this parameter value, see Regions and Endpoints.
charge_info	No	Object	Specifies the billing information, which is pay-per-use. By default, pay-per-use is used. For details, see Table 8.

**Table 4** datastore field data structure description
Name	Mandatory	Type	Description
type	Yes	String	Specifies the DB engine. Value: MySQL PostgreSQL SQLServer
version	Yes	String	Specifies the database version. MySQL databases support 5.6, 5.7, and 8.0. Example value: 5.7 PostgreSQL databases support 11, 12, 13, 14, 15 and 16. Example value: 11 Microsoft SQL Server databases only support 2017_SE, 2017_EE, 2019_SE, 2019_EE, 2022_SE and 2022_EE. Example value: 2017_SE For details about supported database versions, see section Querying Version Information About a DB Engine.

**Table 5** ha field data structure description
Name	Mandatory	Type	Description
mode	Yes	String	Specifies the primary/standby or cluster instance type. The value is Ha (case-insensitive).
replication_mode	Yes	String	Specifies the replication mode for the standby DB instance. Value: For MySQL, the value is async or semisync. For PostgreSQL, the value is async or sync. For Microsoft SQL Server, the value is sync. NOTE: async indicates the asynchronous replication mode. semisync indicates the semi-synchronous replication mode. sync indicates the synchronous replication mode.

**Table 6** backupStrategy field data structure description
Name	Mandatory	Type	Description
start_time	Yes	String	Specifies the backup time window. Automated backups will be triggered during the backup time window. The value cannot be empty. It must be a valid value in the "hh:mm-HH:MM" format. The current time is in the UTC format. The HH value must be 1 greater than the hh value. The values of mm and MM must be the same and must be set to any of the following: 00, 15, 30, or 45. Example value: 08:15-09:15 23:00-00:00
keep_days	No	Integer	Specifies the retention days for specific backup files. The value range is from 0 to 732. If this parameter is not specified or set to 0, the automated backup policy is disabled. To extend the retention period, contact customer service. Automated backups can be retained for up to 2562 days. NOTICE: Primary/standby DB instances and Cluster DB instances of Microsoft SQL Server do not support disabling the automated backup policy.

**Table 7** volume field data structure description
Name	Mandatory	Type	Description
type	Yes	String	Specifies the volume type. Its value can be any of the following and is case-sensitive: COMMON: SATA storage. ULTRAHIGH: ultra-high I/O storage. CLOUDSSD: cloud SSD storage. ESSD: extreme SSD storage. NOTE: The MySQL and PostgreSQL DB engines support the following volume types: CLOUDSSD and ESSD. ESSD is not supported for Single instance types for MySQL and PostgreSQL. The SQL Server engine supports the following volume types: COMMON, ULTRAHIGH, and ESSD.
size	Yes	Integer	Specifies the volume size. Its value must be a multiple of 10 and the value range is from 40 GB to 4000 GB. NOTE: For read replicas, this parameter is invalid. The volume size is the same as that of the primary DB instance by default.

**Table 8** chargeInfo field data structure description
Name	Mandatory	Type	Description
charge_mode	Yes	String	Specifies the billing mode. The value postPaid indicates the pay-per-use billing mode.

**Table 9** unchangeable_param field data structure description
Parameter	Mandatory	Type	Description
lower_case_table_names	No	String	Whether table names are case sensitive. The default value is 1. Value range: 0: Table names are fixed and case sensitive. 1: Table names are stored in lowercase and are case insensitive. NOTE: When data is restored to an existing DB instance, the case sensitivity setting of the existing DB instance must be the same as that of the original DB instance. Otherwise, the restoration may fail.

Example
POST https://rds.eu-de.otc.t-systems.com/v3/0483b6b16e954cb88930a360d2c4e663/instances

Request example

Creating a single DB instance:

{
	"name": "rds-instance-rep2",
	"datastore": {
		"type": "MySQL",
		"version": "8.0"
	},
	"flavor_ref": "rds.mysql.n1.large",
	"volume": {
		"type": "ULTRAHIGH",
		"size": 100
	},
	"disk_encryption_id": "2gfdsh-844a-4023-a776-fc5c5fb71fb4",
	"region": "eu-de",
	"availability_zone": "eu-de-01",
	"vpc_id": "490a4a08-ef4b-44c5-94be-3051ef9e4fce",
	"subnet_id": "0e2eda62-1d42-4d64-a9d1-4e9aa9cd994f",
	"security_group_id": "2a1f7fc8-3307-42a7-aa6f-42c8b9b8f8c5",
	"port": 8635,
	"backup_strategy": {
		"start_time": "08:15-09:15",
		"keep_days": 12
	},
	"charge_info": {
		"charge_mode": "postPaid"
	},
	"password": "Test@12345678",
	"configuration_id": "452408-ef4b-44c5-94be-305145fg",
	"unchangeable_param": {
		"lower_case_table_names": "1"
	}
}

Creating primary/standby DB instances:

{
	"name": "rds-instance-rep2",
	"datastore": {
		"type": "MySQL",
		"version": "8.0"
	},
	"ha": {
		"mode": "ha",
		"replication_mode": "semisync"
	},
	"flavor_ref": "rds.mysql.n1.large.ha",
	"volume": {
		"type": "ULTRAHIGH",
		"size": 100
	},
	"disk_encryption_id": "2gfdsh-844a-4023-a776-fc5c5fb71fb4",
	"region": "eu-de",
	"availability_zone": "eu-de-01,eu-de-02",
	"vpc_id": "490a4a08-ef4b-44c5-94be-3051ef9e4fce",
	"subnet_id": "0e2eda62-1d42-4d64-a9d1-4e9aa9cd994f",
	"security_group_id": "2a1f7fc8-3307-42a7-aa6f-42c8b9b8f8c5",
	"port": 8635,
	"backup_strategy": {
		"start_time": "08:15-09:15",
		"keep_days": 12
	},
	"charge_info": {
		"charge_mode": "postPaid"
	},
	"password": "Test@12345678",
	"configuration_id": "452408-ef4b-44c5-94be-305145fg"
}

Creating a read replica:

{
	"name": "rds-instance-rep2",
	"replica_of_id": "afdsad-fds-fdsagin01",
	"flavor_ref": "rds.mysql.n1.large.rr",
	"volume": {
		"type": "ULTRAHIGH",
		"size": 100
	},
	"disk_encryption_id": "2gfdsh-844a-4023-a776-fc5c5fb71fb4",
	"region": "eu-de",
	"availability_zone": "eu-de-01"
}

Response

Normal response

**Table 10** Parameter description
Name	Type	Description
instance	Object	Indicates the DB instance information. For details, see Table 11.
job_id	String	Indicates the ID of the DB instance creation task.

**Table 11** instance field data structure description
Name	Type	Description
id	String	Indicates the DB instance ID. NOTE: The v3 DB instance ID is incompatible with the v1 DB instance ID.
name	String	Indicates the DB instance name. Indicates the DB instance name. DB instances of the same type can have same names under the same tenant. The value must be 4 to 64 characters in length and start with a letter. It is case-insensitive and can contain only letters, digits, hyphens (-), and underscores (_).
status	String	Indicates the DB instance status. For example, BUILD indicates that the DB instance is being created.
datastore	Object	Indicates the database information. For details, see Table 12.
ha	Object	Indicates the HA configuration parameters. This parameter is returned only when primary/standby DB instances are created. For details, see Table 13.
configuration_id	String	Indicates the parameter template ID. This parameter is returned only when a custom parameter template is used during DB instance creation.
port	String	Indicates the database port, which is the same as the request parameter.
backup_strategy	Object	Indicates the automated backup policy. For details, see Table 14.
disk_encryption_id	String	Indicates the key ID for disk encryption. By default, this parameter is empty and is returned only when it is specified during the DB instance creation.
flavor_ref	String	Indicates the specification code. The value cannot be empty. For details, see spec_code in Table 3 in section Querying Database Specifications.
volume	Object	Indicates the volume information. For details, see Table 15.
region	String	Indicates the region ID.
availability_zone	String	Indicates the AZ ID.
vpc_id	String	Indicates the VPC ID. To obtain this parameter value, use either of the following methods: Method 1: Log in to VPC console and view the VPC ID in the VPC details. Method 2: See the "Querying VPCs" section in the Virtual Private Cloud API Reference.
subnet_id	String	Indicates the network ID. To obtain this parameter value, use either of the following methods: Method 1: Log in to VPC console and click the target subnet on the Subnets page. You can view the network ID on the displayed page. Method 2: See the "Querying Subnets" section under "APIs" or the "Querying Networks" section under "OpenStack Neutron APIs" in Virtual Private Cloud API Reference.
security_group_id	String	Indicates the security group which the RDS DB instance belongs to. To obtain this parameter value, use either of the following methods: Method 1: Log in to VPC console. Choose Access Control > Security Groups in the navigation pane on the left. On the displayed page, click the target security group. You can view the security group ID on the displayed page. Method 2: See the "Querying Security Groups" section in the Virtual Private Cloud API Reference.
charge_info	Object	Indicates the billing information, which is pay-per-use. For details, see Table 16.
collation	String	Indicates the collation set for Microsoft SQL Server.

**Table 12** datastore field data structure description
Name	Type	Description
type	String	Indicates the DB engine. Value: MySQL PostgreSQL SQLServer
version	String	Indicates the database version. For details about supported database versions, see section Database Version Queries.

**Table 13** ha field data structure description
Name	Type	Description
mode	String	Indicates the DB instance type. The value is Ha (primary/standby DB instances).
replication_mode	String	Indicates the replication mode for the standby DB instance. This parameter is valid when the mode is Ha. Value: For MySQL, the value is async or semisync. For PostgreSQL, the value is async or sync. For Microsoft SQL Server, the value is sync. NOTE: async indicates the asynchronous replication mode. semisync indicates the semi-synchronous replication mode. sync indicates the synchronous replication mode.

**Table 14** backupStrategy field data structure description
Name	Type	Description
start_time	String	Specifies the backup time window. Automated backups will be triggered during the backup time window. The value cannot be empty. It must be a valid value in the "hh:mm-HH:MM" format. The current time is in the UTC format. The HH value must be 1 greater than the hh value. The values of mm and MM must be the same and must be set to any of the following: 00, 15, 30, or 45. Example value: 08:15-09:15 23:00-00:00 If backup_strategy in the request body is empty, 02:00-03:00 is returned for start_time by default.
keep_days	Integer	Indicates the retention days for specific backup files. The value range is from 0 to 732. If this parameter is not specified or set to 0, the automated backup policy is disabled. To extend the retention period, contact customer service. Automated backups can be retained for up to 2562 days. If backup_strategy in the request body is empty, 7 is returned for keep_days by default.

**Table 15** volume field data structure description
Name	Type	Description
type	String	Indicates the volume type. Its value can be any of the following and is case-sensitive: COMMON: SATA storage. ULTRAHIGH: ultra-high I/O storage. CLOUDSSD: cloud SSD storage. ESSD: extreme SSD storage.
size	Integer	Indicates the volume size. Its value range is from 40 GB to 4000 GB. The value must be a multiple of 10.

**Table 16** chargeInfo field data structure description
Name	Type	Description
charge_mode	String	Indicates the billing information, which is pay-per-use.

Example normal response