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Create a VCS instance

You can create VCS instances with default configurations in just a few steps or choose a suitable instance type according to your needs. Detailed information regarding to the instance types (e.g., resource numbers and sizes), please refer to VCS pricing.

TWSC provides the following image
  • Linux：
    • Ubuntu：20.04, 22.04, 24.04
    • Centos：7.9
    • Rocky Linux：8.9, 9.3
  • Windows：
    • Windows Server：
      • 2016 (English/Chinese ver.)
      • 2019 (English/Chinese ver.)
      • 2022 (English/Chinese ver.)
    • SQL Server Web
  • Please refer to Pricing for specific instance specifications.

Before we get started​


Create a Linux instance ​

  • Select an image type. TWSC provides commonly used OS images of Linux and Windows that you can create instances and use instantly. You may browse and select, or directly search for the name of the image name on the top left (e.g., Ubuntu, Windows Server, etc.).

tip

After the first selection, system would record and display the image in Recent Used block to speed up your next selection. (Clearing the browser history will also clear this record.)

  • Fill in the name and description of the VCS instance on the configuration page. Select the image version and hardware specifications you need, including different combinations of the number of CPUs, memory capacity, storage capacity the estimated cost, select turn "on" or "off" the deletion protection, then click NEXT: VIRTUAL NETWORK INTERFACE>.

info

If Deletion Protection is enabled, before deleting a resource, you need to disable the protection mechanism before continuing the deletion process, which can prevent the resource from being deleted by mistake and causing service interruption.

  • On the VIRTUAL NETWORK INTERFACE page, you can attach Dependent VNI or Independent VNIs. For more detailed instructinos, please see this document.
    • Use the default_network by system default or a customized virtual network (VNW).
    • For the Dependent VNI, by default, Auto-assign Floating IP is disabled. If you need to connect to an instance from the Internet, please click Auto-assign Floating IP or Assign Static IP, we suggest you use security group to ensure the security of instance and reduce information security risks. Please refer to Elastic IP for usage details.
    • Create a default security group, or select custom existing security groups (search and add multiple security groups with the + button on the right side).
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  1. For the naming convention and rules of the default security group, see Security Group for more information.
  2. The maximum limit for security groups in a single project is 200. If you are unable to create one, it could be because you have reached the maximum limit. We recommend selecting an existing security group if you have previously created any, to minimize the creation of new ones.

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  1. Please create a default VNW (default_network) if you are a first-time user, please refer to the operation steps: Create a default network. If there is a need for custom VNW, please refer to Create custom VNWs.
  2. The creation of VNWs is restricted to Tenant Admins. If you are a Tenant User, please contact the Tenant Admins of your project for assistance.
  • On the Storage Information page, set the following disk information:
    • System Disk：
      • System Disk Size (GB): 5 disk sizes are provided - 100GB, 200GB, 300GB, 400GB, 500 GB.
      • System Disk Type: HDD only.
    • Data Disk：
      • Data Disk Size (GB):You can freely set the disk size (up to 16TB).
      • Data Disk Type: 4 data disk types are provided - HDD, SSD, HDD encryption, and SSD encryption.

caution
  • Then click Next: Key Pair>.
  • The key pair is the certificate for connecting to your Linux instance. You can select an existing key pair or click +Create Key Pair to create a new one.

  • Enter the name of the key pair and click OK.
info

The public key is not required and is intended to facilitate your workflow of using the same key in different clouds. Therefore, you may enter your public key in other clouds here and use it to access your TWSC instances.

  • Once the key pair is created, please be sure to click Download immediately and save it properly. Without this key pair, you will not be able to connect to the VCS instance. After downloading, you can close the dialog window.

caution

TWSC is not responsible for recording and managing your key pair. Please be sure to download and properly save the key pair pem file. Without this key pair, you will not be able to connect to VCS instances.

  • Click Next: ENVIRONMENT VARIABLES> to set the environment variables that meet your needs. For detailed explanation and setting examples, please refer to Set environment variables.

  • Click Next: INITIAL SCRIPTS>. For detailed explanation and setting examples, please refer to this document.

  • Then, click Next: Review & Create> to review the settings and estimated cost of the VCS instance. Click Create to complete, and wait a few minutes, the connection can be started when the state of the instance becomes Ready.


Create a Windows instance ​

  • Click Virtual Compute Service (VCS) to go to the VCS Instance Management page, and select ＋CREATE.

tip

You can click on the asterisk to the left of the service in All Services and pin your frequently used services to My Favorite Services to speed up the process.

  • Select an image type. TWSC provides commonly used OS images of Linux and Windows that you can create instances and use instantly. You may browse and select, or directly search for the name of the image name on the top left (e.g., Ubuntu, Windows Server, etc.).

tip

After the first selection, system would record and display the image in Recent Used block to speed up your next selection. (Clearing the browser history will also clear this record.)

  • Fill in the name and description of the VCS instance on the configuration page. Select the image version and hardware specifications you need, including different combinations of the number of CPUs, memory capacity, storage capacity the estimated cost, select turn "on" or "off" the deletion protection, then click NEXT: VIRTUAL NETWORK INTERFACE>.

info

If Deletion Protection is enabled, before deleting a resource, you need to disable the protection mechanism before continuing the deletion process, which can prevent the resource from being deleted by mistake and causing service interruption.

  • On the VIRTUAL NETWORK INTERFACE page, you can attach Dependent VNI or Independent VNIs. For more detailed instructinos, please see this document.
    • Use the default_network by system default or a customized virtual network (VNW).
    • For the Dependent VNI, by default, Auto-assign Floating IP is disabled. If you need to connect to an instance from the Internet, please click Auto-assign Floating IP or Assign Static IP, we suggest you use security group to ensure the security of instance and reduce information security risks. Please refer to Elastic IP for usage details.
    • Create a default security group, or select custom existing security groups (search and add multiple security groups with the + button on the right side).
info

For the naming convention and rules of the default security group, see Security Group for more information.

info
  1. Please create a default VNW (default_network) if you are a first-time user, please refer to the operation steps: Create a default network. If there is a need for custom VNW, please refer to Create custom VNWs.
  2. The creation of VNWs is restricted to Tenant Admins. If you are a Tenant User, please contact the Tenant Admins of your project for assistance.
  • On the Storage Information page, set the following disk information:
    • System Disk：
      • System Disk Size (GB): 5 disk sizes are provided - 100GB, 200GB, 300GB, 400GB, 500 GB.
      • System Disk Type: HDD only.
    • Data Disk：
      • Data Disk Size (GB):You can freely set the disk size (up to 16TB).
      • Data Disk Type: 4 data disk types are provided - HDD, SSD, HDD encryption, and SSD encryption.

caution
  • Create Windows login password. Then click Next: Review & Create>.

caution
  1. To protect your instance security, we recommend setting a strong password with at least 17 characters.
  2. This password is for private use and will not be recorded or managed by TWCC. Please be sure to keep it properly, without it, you will not be able to connect to your VCS instance.
  • Then, click Next: Review & Create> to review the settings and estimated cost of the VCS instance. Click Create to complete, and wait a few minutes, the connection can be started when the state of the instance becomes Ready.

info