Step 1

Clone the Git Repository to the local folder.

git clone <Git-Repository-URL > -b <branch-name >

Step 2

Create the Object Storage Service Bucket (OSS).

1. On the Alibaba Cloud OSS console, select Object Storage Service (OSS) in the left navigation pane.

2. Click the Buckets tab.

3. Click Create Bucket and enter the Bucket Name along with any other required details in the dialog box.

4. Click OK to create the OSS bucket.

Step 3

Set up the Virtual Private Cloud and vSwitches.

1. On the Alibaba cloud VPC console, in the top navigation bar, choose the region in which you want to create a VPC and a vSwitch.

2. On the VPC page, click Create VPC and enter the VPC Name, IPv4 CIDR block, and any other required details.

3. Scroll below to the VSwitch section and click +Add to add vSwitches for management, diagnostic, inside, and outside interfaces.

4. Click OK to create the VPC.

Step 4

Create the layers given below.

1. Log in to the Alibaba Cloud Function Compute Console and go to Advanced Features > Layers.

2. Choose a region in the top navigation bar.

3. On the Layers page, click Create Layer.

4. Enter a Name for the layer along with a Description.

5. In the Compatible Runtime field, choose Python 3.9.

6. For the Layer Upload Method, choose Build Dependency.

7. From the Build Environment drop-down list, choose Python 3.9.

8. In the requirements.txt File field, enter paramiko and click Upload to upload the requirements.txt file and create the paramiko-built-layer layer. Similarly, create layers for slb (scaleout function layer), ess-built, and cms-buil (memory metrics function layer).

Step 5

Create the memory metric group.

1. Go to the Alibaba Cloud Function Compute console and click the Cloud Shell icon on the top right of the page.

   

2. In the Cloud Shell terminal window, use the command given below with the required GroupId and MetricName to create the memory metric group.

   shell@Alicloud:~$ aliyun cms PutCustomMetric --region us-west-1 --MetricList.1.GroupId 22722 
   --MetricList.1.MetricName memory --MetricList.1.Dimensions '{"time":"minutes"}'
   --MetricList.1.Type 0 --MetricList.1.Values '{"value":1}'
   {
           "Code": "200",
           "Message": "success",
           "RequestId": "EFBEAF7C-EDE7-3183-BAAF-A7E06643F02D”
   }
   

Step 6

Go to the management center virtual and configure the components given below. For more information on configuring these components, see Management Center Device Configuration Guide or the Management Center REST API Quick Start Guide.

Step 7

Update the variables in the following templates to ensure that the auto scale solution is deployed using the required VPC and custom variable names.

Step 8

Compress or zip the files in the scaleout_functions folder and rename the compressed or zipped file as scaleout_action.zip. Similarly, create the scalein_action.zip and memory_metrics_action.zip files.

Step 9

Upload the scalein_action.zip, scaleout_action.zip, and memory_metrics_action.zip files to the OSS Bucket.

1. On the Alibaba Cloud Object Storage Service console, go to Buckets > OSS bucket created by you > Files > Objects.

2. Choose the zip files that have to be uploaded from the local folder and click Upload. Ensure that the files are zipped and not in a folder.

   

Step 10

Create terraform templates.

1. In the Alibaba Cloud ROS console, click Templates > My Templates.

2. Click Create Template.

3. Click Terraform > Open File.

4. Select main.tf and variables.tf, and click Open.

5. Click Save Template > Save as My Template.

6. In the Template Name field on the Save as My Template window, enter ftdv_functions.

7. Click OK.

Step 11

Create the Functions stack.

1. In the Alibaba Cloud ROS console, click Templates > My Templates.

2. Click Create Stack in the row mentioning the name of the functions template that you created.

   

3. In the Use New Resources (Standard) page, enter the Stack Name.

4. (Optional) You can change the values of the variables in the template as per your requirements.

   

5. Click Create.

6. (Optional) Click the Events tab and toggle Auto-refresh to see the creation of the stack resources in real-time. You can also click the Refresh icon to refresh the status of the events on this page. After all the resources have been created, you will see Created next to Status in the Stack Information tab which signifies that the stack has been created.

Step 12

Add layers to the functions stack. The Threat Defense Virtual auto-scale solution requires the layers given below.

1. In the Alibaba Cloud Function Compute console, click Services and Functions.

2. Click the service name to display the scale-out and scale-in functions.

3. Click the scale-out function name.

4. In the Code tab, click Edit Layer.

   

5. Click Add Layer > Add Custom Layer.

6. Add the slb and paramiko-built-layer layers from the Layer 1 and Layer 2 drop-down lists.

   

7. Click OK.

8. Click the memory metrics function name.

9. In the Code tab, click Edit Layer.

10. Click Add Layer > Add Custom Layer.

11. Add the cms-build and ess-built layers from the Layer 1 and Layer 2 drop-down lists.

    

12. Click OK.

Step 13

Create auto scale rules for all the three functions - scaleout_action, scalein_action, and memory_metrics_action, to ensure that only one function is initiated at a time.

1. In the Alibaba Cloud compute console, click Services and Functions.

2. Click the service name to display the functions.

3. Click the scale out function name.

4. In the Auto Scaling tab, click Create Rule.

5. Choose LATEST as the version.

6. Enter 0 in the Minimum Instance Count field and 1 in the Maximum Instance Count field.

7. Click Create Rule.

   Similarly, create rules for the scale in and memory metrics functions.

Step 14

Create the Auto Scale Stack.

1. In the Alibaba Cloud ROS console, click Templates > My Templates.

2. Click Create Stack in the auto scale template row.

   

3. In the Use New Resources (Standard) page, enter the Stack Name and any other required parameters.

4. Click Create.

5. (Optional) Click the Events tab and toggle Auto-refresh to see the creation of the stack resources in real-time. You can also click the Refresh icon to refresh the status of the events on this page. After all the resources have been created, you will see Created next to Status in the Stack Information tab which signifies that the stack has been created.

Step 1

In the Alibaba Cloud compute console, click Services and Functions.

Step 2

Click the service name to display the functions.

Step 3

Click the memory metrics function name.

Step 4

In the Triggers tab, click Enable in the trigger name row.

Step 1

In the Alibaba Cloud CloudMonitor console, click Custom Monitoring.

Step 2

Select the memory metrics group name from the Select Group drop-down list, the memory metric name, and Dimension (time in minutes).

Step 3

Click OK to display a graph depicting minute-to-minute Threat Defense Virtual memory usage. Any increase in memory usage is depicted by a spike in the graph.

Step 1

In the Alibaba Cloud Auto Scaling console, click Scaling Groups.

Step 2

Click the Scaling Group Name/ID for which you want to disable auto scaling.

Step 3

Click Disabled to disable auto scaling.