Connecting to an Instance from an ECS

Updated at: Jan 24, 2022 GMT+08:00

This section uses the Linux OS as an example to describe how to purchase and connect to a cluster instance over a private network.

Log in to the management console.
Under Compute, select Elastic Cloud Server. On the Elastic Cloud Server page displayed, click Buy ECS.
Configure basic settings and click Next: Configure Network. The region and AZ of the ECS are the same as those of the cluster instance to be connected.
Figure 1 Basic configurations

Figure 2 Selecting an image
Configure the ECS network information and click Next: Configure Advanced Settings. The VPC and security group of the ECS are the same as those of the cluster instance to be connected.
Figure 3 Network settings
Configure the ECS password, and click Next: Confirm.
Figure 4 Advanced settings
Confirm the configuration information and click Submit.
Figure 5 Confirming the configurations
View the purchased ECS.
Figure 6 Purchase succeeded

Log in to the management console.
Choose Databases > Document Database Service. On the displayed page, click Buy DB Instance.
Configure the instance information and click Submit. The region, AZ, VPC, and security group of the ECS are the same as those of the cluster instance to be connected.
Figure 7 Basic configurations

Figure 8 Administrator settings

Figure 9 Network settings and validity period

Figure 10 Advanced settings
View the purchased DDS instance.
Figure 11 Purchase succeeded

Use the Linux remote connection tool to log in to the ECS. Remote host is the EIP bound to the ECS.
Figure 12 Creating a session
Enter the password of the ECS.
Figure 13 Entering the password

Figure 14 Successful login
Download the mongodb-linux-x86_64-rhel70-4.0.27.tgz client installation package.
Figure 15 Downloading the client
Upload the client installation package to the ECS.
Figure 16 Uploading the client

Figure 17 Client uploaded
Decompress the installation package on the ECS.
tar zxvf mongodb-linux-x86_64-rhel70-4.0.27.tgz
Obtain the installation package under the bin directory.
cd mongodb-linux-x86_64-rhel70-4.0.27/bin

The common tools are as follows:
- MongoDB client mongo
- Data export tool mongoexport
- Data import tool mongoimport
Before using a client tool, assign the execute permission to it.
- Run the chmod +x mongo command to grant a client permission to connect to an instance.
- Run the chmod +x mongoexport command to grant a client permission to export data.
- Run the chmod +x mongoimport command to grant a client permission to import data.
Connect to the DDS instance.
./mongo mongodb://rwuser:<password>@<DB_HOST1>:<DB_PORT1>,<DB_HOST2>:<DB_PORT2>/test?authSource=admin

Figure 18 Connection succeeded
Create a database and a collection.
Figure 19 Creating a database

Figure 20 Creating a collection