Getting Started
This section describes how to create a cluster instance by calling APIs.
The validity period of a token obtained from IAM is 24 hours. If you want to use a token for authentication, cache it to avoid frequent IAM API calling.
Involved APIs
If you use a token for authentication, you must obtain the user's token and add X-Auth-Token to the request message header of the service API when making an API call.
- API for obtaining tokens from IAM
- Creating a DDS DB instance using an open API
Procedure
- Obtain the token by following instructions in section Authentication.
- Send POST https://DDS endpoint/v3/{project_id}/instances.
- Add X-Auth-Token to the request header.
- Specify the following parameters in the request body:
The values of region and availability_zone are used as examples.
For details about the API used for creating DB instances, see Creating a DB Instance.
{ "name": "test-cluster", //DB instance name "datastore": { "type": "DDS-Community", // Database type and version "version": "3.4", //Database version "storage_engine": "wiredTiger" //Storage engine }, "region": "aaa", //Region name "availability_zone": "bbb", //AZ name "vpc_id": "674e9b42-cd8d-4d25-a2e6-5abcc565b961", //VPC ID "subnet_id": "f1df08c5-71d1-406a-aff0-de435a51007b", //Subnet ID "security_group_id": "7aa51dbf-5b63-40db-9724-dad3c4828b58", //Security group ID "password": "******", //Administrator password "disk_encryption_id": "d4825f1b-5e47-4ff7-8ca9-0960da1770b1", //Key ID for encrypting disks "mode": "Sharding", //Sharded-cluster instance type "flavor": [ { "type":"mongos", //mongos node "num": 2, //Quantity "spec_code": "dds.mongodb.c6.medium.4.mongos" //Node resource code }, { "type":"shard", //shard node "num": 2, //Quantity "storage": "ULTRAHIGH", //Disk type "size": 20, //Disk size "spec_code": "dds.mongodb.c6.medium.4.shard" //Node resource code }, { "type":"config", //config node "num": 1, //Quantity "storage": "ULTRAHIGH", //Disk type "size": 20, //Disk size "spec_code": "dds.mongodb.c6.large.2.config" //Node resource type } ], "backup_strategy": { "start_time": "23:00-00:00", //Backup period "keep_days": "8" //Retention days of backup files }, "ssl_option":"1" }
If the following information is displayed, the request is successful:
{ "id": "46125c43ca4d424a9f5c97354223c4e0in02", "name": "test-cluster", "datastore": { "type": "DDS-Community", "version": "3.4", "storage_engine": "wiredTiger" }, "created": "2019-01-14 08:50:27", "status": "creating", "region": "aaa", "availability_zone": "bbb", "vpc_id": "674e9b42-cd8d-4d25-a2e6-5abcc565b961", "subnet_id": "f1df08c5-71d1-406a-aff0-de435a51007b", "security_group_id": "7aa51dbf-5b63-40db-9724-dad3c4828b58", "disk_encryption_id": "d4825f1b-5e47-4ff7-8ca9-0960da1770b1", "mode": "Sharding", "flavor": [ { "type": "mongos", "num": 2, "spec_code": "dds.mongodb.c6.medium.4.mongos" }, { "type": "shard", "num": 2, "size": 20, "spec_code": "dds.mongodb.c6.medium.4.shard" }, { "type": "config", "num": 1, "size": 20, "spec_code": "dds.mongodb.c6.large.2.config" } ], "backup_strategy": { "start_time": "23:00-00:00", "keep_days": "8" }, "enterprise_project_id": "", "ssl_option":"1", "job_id": "c0c606b6-470a-48c7-97a2-6c7f146014d4" }
If the request fails, an error code and error information are returned. For details, see section Error Code.
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