• What is Zone-Based Control?
• Environment Setup
• Test Cases
  • Case 1: Check Resource Zone Information
  • Case 2: Default Zone Test
  • Case 3: Target Zone Test
  • Case 4: Verify Zone Mismatch Error Message
• Test Result

Zone-Based Control is a feature provided by CB-Spider in Cloud-Barista, allowing resource creation and management not only in the Default Zone within a single Connection but also in other Target Zones. For more, Check the Zone-based Control wiki document.

- CB-SPIDER: 0.10.1
- CSP: AWS
- Region: us-east-2
- Default Zone: us-east-2a (United States, Ohio)
- Target Zone: us-east-2b (United States, Ohio)
- VM Spec: t2.micro
- VM Image: ami-00afc76f2b7273d3b
- Disk: Size - 1GB / Type - gp2

Verify the zone information of the provisioned resources(Subnet, Disk, VM).

1. List all resources created in the default and target zones.
2. Ensure the zone information matches the expected configuration.

• Resource details include accurate zone information.

Figure 1: VPC/Subnet Management

Figure 2: Disk Management

Figure 3: VM Provisioning Info

Test resource provisioning in the default zone (us-east-2a).

1. Create a subnet s1 and disk d1 in the default zone (us-east-2a).
2. Create a Security Group for s1.
3. Provision a VM in the subnet s1.
4. Attach the disk d1 to the VM.
5. Detach the disk d1 from the VM.

• Subnet s1 and disk d1 are successfully created in the default zone (us-east-2a).
• VM1 is successfully created in the us-east-2a zone.
• Disk d1 is successfully attached to the VM1.
• Disk d1 is successfully detached from the VM1.

Figure 4: Disk Attach to Default Zone

Figure 5: Disk Detach from Default Zone

Test resource provisioning in the target zone (us-east-2b).

1. Create a subnet s2 and disk d2 in the target zone (us-east-2b).
2. Create a Security Group for s2
3. Provision a VM2 in the subnet s2.
4. Attach the disk d2 to the VM2.
5. Detach the disk d2 from the VM2.

• Subnet s2 and disk d2 are successfully created in the target zone (us-east-2b).
• VM2 is successfully created in the us-east-2b zone.
• Disk d2 is successfully attached to the VM2.
• Disk d2 is successfully detached from the VM2

Figure 6: Disk Attach to Target Zone

Figure 7: Disk Detach from Target Zone

Validate error handling when there is a zone mismatch.

1. Attempt to interaction with a resource in an incorrect zone.
2. Attempt to attach d1 (in us-east-2a) to VM2 (in us-east-2b) using the API / CLI
3. Observe the error message returned by the system.

• Method: PUT
• Endpoint: `http://localhost:1024/spider/disk/aws-ohio-disk-1/attach
• Request Body:

  {
    "ConnectionName": "aws-config01",
    "ReqInfo": {
      "VMName": "aws-ohio-vm-2"
    }
  }

• System Should return a Zone Mismatch Error response, clearly indicating that the disk and the VM are not in the same availability zone.

{
  "message": "InvalidVolume.ZoneMismatch: The volume 'vol-0fb0eede632787658' is not in the same availability zone as instance 'i-08bdefda0ac12fef5'\nstatus code: 400, request id: 60e134ec-8477-4679-88a8-a70d057a62c8"
}

You can view the Zone-Based Control Test results for each CSP's resources at the link below:
🔗 View Google Spreadsheet

By following this guide, you can successfully test the Zone-Based Control feature in CB-SPIDER and ensure it operates as expected under various scenarios.