Restoring Data to a New DB Instance

Function

This API is used to restore data to a new DB instance.

Constraints

The DB engine of the original DB instance must be the same as that of the target DB instance. For example, if the original DB instance is running MySQL, the target DB instance must also run MySQL.
The DB engine versions of the original and target DB instances must be the same.
The storage space of the target DB instance must be at least equal to that of the original DB instance.

URI

URI format
POST /v3/{project_id}/instances

Parameter description

**Table 1** Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Explanation: Project ID of a tenant in a region. For details about how to obtain the project ID, see Obtaining a Project ID. Constraints: N/A Value range: N/A Default value: N/A

Request

**Table 2** Parameters
Parameter	Mandatory	Type	Description
name	Yes	String	Explanation: Instance name. Constraints: Instances of the same type can have the same name under the same tenant. Value range: The instance name must start with a letter and consist of 4 to 64 characters. Only letters (case-sensitive), digits, hyphens (-), underscores (_), and periods (.) are allowed. Default value: N/A
password	No	String	Explanation: Database password. Constraints: 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. Value range: 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. The allowed special characters include *~!@#$%^-_=+?,()&. Default value**: N/A
flavor_ref	Yes	String	Explanation: Specification code. Constraints: N/A Value range: The value cannot be empty. For details, see spec_code in Table 3 of Querying Database Specifications. Default value: N/A
volume	Yes	Object	Explanation: Instance storage. For details, see Table 5. Constraints: N/A
availability_zone	Yes	String	Explanation: AZ ID. Constraints: If the DB instance is not a single-node instance, you need to specify an AZ for each node of the instance and separate the AZs with commas (,). Value range: The value cannot be empty. For details, see Regions and Endpoints. Default value: N/A
restore_point	Yes	Object	Explanation: Restoration information. For details, see Table 6. Constraints: N/A
ha	No	Object	Explanation: HA configuration. For details, see Table 3. Constraints: This parameter is used only when you create a primary/standby instance.
port	No	String	Explanation: Database port. Constraints: N/A Value range: If this parameter is not specified, the default value is 3306. If this parameter is specified, the value range is from 1024 to 65535 (excluding 12017 and 33071, which are occupied by the RDS system and cannot be used). Default value: 3306
backup_strategy	No	Object	Explanation: Advanced backup policy. For details, see Table 4. Constraints: N/A
region	No	String	Explanation: Region ID. Constraints: N/A Value range: The value cannot be empty. For details, see Regions and Endpoints. Default value: N/A
charge_info	Yes	Object	Explanation: Yearly/Monthly billing information. For details, see Table 7. Constraints: N/A
time_zone	No	String	Explanation: UTC time zone. Constraints: N/A Value range: If this parameter is not specified, the UTC time is used by default. If this parameter is specified, the value range is from UTC-12:00 to UTC+12:00 on the hour. For example, the value can be UTC+08:00 rather than UTC+08:30. Default value: UTC+08:00
tags	No	Array of objects	Explanation: Tag list. Each DB instance can be associated with tag key-value pairs while being created. For details, see Table 8. Constraints: If you want to create DB instances with multiple tag key-value pairs, separate them with commas (,). A maximum of 20 key-value pairs can be added for an instance.
is_flexus	Yes	boolean	Explanation: Whether to create a FlexusRDS instance. Constraints: N/A Value range: true Default value: N/A

**Table 3** ha field data structure description
Parameter	Mandatory	Type	Description
mode	Yes	String	Explanation: Instance type. Constraints: N/A Value range: HA (case-insensitive) Default value: N/A
replication_mode	Yes	String	Explanation: Replication mode for the standby instance. Constraints: N/A Value range: async: asynchronous replication semisync: semi-synchronous replication Default value: N/A

**Table 4** backup_strategy field data structure description
Parameter	Mandatory	Type	Description
start_time	Yes	String	Explanation: Backup time window. Automated backups will be triggered during the backup time window. Constraints: N/A Value range: The value cannot be empty. It must be a valid value in the "hh:mm-HH:MM" format. The current time is the UTC time. 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 00, 15, 30, or 45. Example: 08:15-09:15 23:00-00:00 Default value: N/A
keep_days	No	Integer	Explanation: Retention days for backups. Constraints: N/A Value range: If this parameter is not specified, the default value 7 is used. If this parameter is specified, the value range is from 0 to 732. 0 indicates that the automated backup policy is disabled. To extend the retention period, contact customer service. Automated backups can be retained for up to 2,562 days. Default value: 7

**Table 5** volume field data structure description
Parameter	Mandatory	Type	Description
type	Yes	String	Explanation: Storage type. Constraints: N/A Value range: CLOUDSSD (case-sensitive): cloud SSD storage. This storage type is supported only with general-purpose and dedicated instances. Default value: N/A
size	Yes	Integer	Explanation: Storage space. Constraints: The storage space of the new DB instance must be greater than or equal to that of the original DB instance. Value range: 40–4000, in GB. The value must be a multiple of 10. Default value: N/A

**Table 6** restore_point field data structure description
Parameter	Mandatory	Type	Description
instance_id	Yes	String	Explanation: Instance ID. Constraints: N/A Value range: N/A Default value: N/A
type	Yes	String	Explanation: Restoration mode. Constraints: N/A Value range: backup: indicates restoration from backups. In this mode, backup_id is mandatory when type is not mandatory. timestamp: indicates point-in-time restoration. In this mode, restore_time is mandatory when type is mandatory. Default value: N/A
backup_id	No	String	Explanation: ID of the backup used to restore data. This parameter must be specified when backups are used for restoration. Constraints: When type is not mandatory, backup_id is mandatory. Value range: N/A Default value: N/A
restore_time	No	Integer	Explanation: Time point of data restoration in the UNIX timestamp format. The unit is millisecond and the time zone is UTC. Constraints: When type is mandatory, restore_time is mandatory. Value range: N/A Default value: N/A

**Table 7** charge_info field data structure description
Parameter	Mandatory	Type	Description
charge_mode	Yes	String	Explanation: Billing mode. Constraints: N/A Value range: prePaid: yearly/monthly billing Default value: N/A
period_type	Yes	String	Explanation: Subscription type. Constraints: N/A Value range: month: indicates that the service is subscribed by month. year: indicates that the service is subscribed by year. Default value: N/A
period_num	No	Integer	Explanation: Subscription period. Constraints: N/A Value range: When period_type is set to month, the parameter value ranges from 1 to 9. When period_type is set to year, the parameter value ranges from 1 to 3. Default value: N/A
is_auto_renew	No	boolean	Explanation: Whether automatic renewal is enabled for yearly/monthly instances. The renewal period is the same as the original period, and the order will be automatically paid. Constraints: N/A Value range: true: indicates that automatic renewal is enabled. false: indicates that automatic renewal is disabled. The default value is false. Default value: false
is_auto_pay	No	boolean	Explanation: Whether the order will be automatically paid. This parameter does not affect the payment method of automatic renewal. Constraints: N/A Value range: true: indicates the order will be automatically paid. false: indicates the order will be manually paid. The default value is false. Default value: false

**Table 8** tags field data structure description
Parameter	Mandatory	Type	Description
key	Yes	String	Explanation: Tag key. Constraints: N/A Value range: The value must consist of 1 to 128 Unicode characters. It can contain letters, digits, spaces, and special characters _.:=+-@. However, it cannot start or end with a space, or start with _sys_. Default value: N/A
value	Yes	String	Explanation: Tag value. Constraints: N/A Value range: It can be left blank or contain a maximum of 255 Unicode characters. It can contain letters, digits, spaces, and special characters _.:=+-@. Default value: N/A

Example Request

Restore data to a new instance from FlexusRDS backups.

POST https://{endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/instances
{
	"name": "targetInst",
	"availability_zone": "bbb,ccc",
	"ha": {
		"mode": "ha",
		"replication_mode": "async"
	},
	"flavor_ref": "rds.mysql.y1.xlarge.2.ha",
	"volume": {
		"type": "CLOUDSSD",
		"size": 40
	},
        "region": "aaa",
	"backup_strategy": {
		"keep_days": 2,
		"start_time": "19:00-20:00"
	},
	"password": "Demo@12345678",
	"time_zone": "UTC+04:00",
	"restore_point": {
		"instance_id": "d8e6ca5a624745bcb546a227aa3ae1cfin01",
		"type": "backup",
		"backup_id": "2f4ddb93-b901-4b08-93d8-1d2e472f30fe"
	}
}

Restore data of a FlexusRDS instance to a specific point in time.

{
	"name": "targetInst",
	"availability_zone": "bbb,ccc",
	"ha": {
		"mode": "ha",
		"replication_mode": "async"
	},
	"flavor_ref": "rds.mysql.y1.xlarge.2.ha",
	"volume": {
		"type": "CLOUDSSD",
		"size": 40
	},
	"backup_strategy": {
		"keep_days": 2,
		"start_time": "19:00-20:00"
	},
	"password": "Demo@12345678",
	"time_zone": "UTC+04:00",
	"restore_point": {
		"instance_id": "d8e6ca5a624745bcb546a227aa3ae1cfin01",
		"type": "timestamp",
		"restore_time": 1532001446987
	}
}

Response

Normal response

**Table 9** Parameters
Parameter	Type	Description
instance	Object	Explanation: Instance information. For details, see Table 10.
job_id	String	Explanation: Instance creation task ID. This parameter is returned only for the restoration to a new DB instance billed on the pay-per-use basis. Value range: N/A

**Table 10** instance description
Parameter	Type	Description
id	String	Explanation: Instance ID. Value range: N/A
name	String	Explanation: Instance name. Instances of the same type can have the same name under the same tenant. Value range: The value is the same as that of the corresponding request parameter.
status	String	Explanation: Instance status. Value range: BUILD: indicates that the instance is being created.
datastore	Object	Explanation: Database information. For details, see Table 11.
ha	Object	Explanation: HA configuration. This parameter is returned only when primary/standby instances are created. For details, see Table 12.
port	String	Explanation: Database port. Value range: The value is the same as that of the corresponding request parameter.
backup_strategy	Object	Explanation: Automated backup policy. For details, see Table 13.
flavor_ref	String	Explanation: Specification ID. For details, see spec_code in Table 3 of Querying Database Specifications.
volume	Object	Explanation: Volume information. For details, see Table 14.
region	String	Explanation: Region ID. Value range: The value is the same as that of the corresponding request parameter.
availability_zone	String	Explanation: AZ ID. Value range: The value is the same as that of the corresponding request parameter.
vpc_id	String	Explanation: VPC ID. Value range: vpc-default-smb
subnet_id	String	Explanation: Subnet ID. Value range: subnet-default-smb
security_group_id	String	Explanation: Security group which the instance is associated with. Value range: sg-default-smb
charge_info	Object	Explanation: Billing information. For details, see Table 7.

**Table 11** datastore field data structure description
Parameter	Mandatory	Type	Description
type	Yes	String	Explanation: DB engine. Value range: MySQL
version	Yes	String	Explanation: DB engine version. Value range: 5.7 or 8.0

**Table 12** ha field data structure description
Parameter	Mandatory	Type	Description
mode	Yes	String	Explanation: Instance type. Value range: HA (case-insensitive)
replication_mode	Yes	String	Explanation: Replication mode for the standby instance. Value range: async: asynchronous replication semisync: semi-synchronous replication

**Table 13** backupStrategy field data structure description
Parameter	Mandatory	Type	Description
start_time	Yes	String	Explanation: Backup time window. Automated backups will be triggered during the backup time window. Value range: The value cannot be empty. It must be a valid value in the "hh:mm-HH:MM" format. The current time is the UTC time. 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 00, 15, 30, or 45. Example: 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	No	Integer	Explanation: Retention days for backups. Value range: 0–732. 0 indicates that the automated backup policy is disabled. To extend the retention period, contact customer service. Automated backups can be retained for up to 2,562 days. If backup_strategy in the request body is empty, 7 is returned for keep_days by default.

**Table 14** volume field data structure description
Parameter	Mandatory	Type	Description
type	Yes	String	Explanation: Storage type. Value range: CLOUDSSD (case-sensitive): cloud SSD storage. This storage type is supported only with general-purpose and dedicated instances.
size	Yes	Integer	Explanation: Storage space. Value range: 40–4000, in GB. The value must be a multiple of 10.

The values of region and availability_zone in the example response are only for reference.

Example normal response

Restore data to a new instance from FlexusRDS backups.

{
	"instance": {
		"id": "f5ffdd8b1c98434385eb001904209eacin01",
		"name": "demoname",
		"status": "BUILD",
		"datastore": {
			"type": "MySQL",
			"version": "5.7.31"
		},
		"port": "3306",
		"volume": {
			"type": "ULTRAHIGH",
			"size": "40"
		},
		"region": "aaa",
		"backup_strategy": {
			"start_time": "02:00-03:00",
			"keep_days": "7"
		},
		"flavor_ref": "rds.mysql.s1.large",
		"availability_zone": "bbb",
		"vpc_id": "19e5d45d-70fd-4a91-87e9-b27e71c9891f",
		"subnet_id": "bd51fb45-2dcb-4296-8783-8623bfe89bb7",
		"security_group_id": "23fd0cd4-15dc-4d65-bdb3-8844cc291be0"
	},
	"job_id": "bf003379-afea-4aa5-aa83-4543542070bc"
}