Security Group Policies

Constraints

• A workload can be bound to a maximum of five security groups.

Using the Console

1. Log in to the CCE console and click the cluster name to access the cluster console.
2. In the navigation pane, choose Workloads. On the displayed page, click the desired workload name.
3. Switch to the SecurityGroups tab page and click Create.

4. Set the parameters as described in Table 1.

   Table 1 Configuration parameters

   Parameter	Description	Example Value
   Security Group Policy Name	Enter a security policy name. Enter 1 to 63 characters. The value must start with a lowercase letter and cannot end with a hyphen (-). Only lowercase letters, digits, and hyphens (-) are allowed.	security-group
   Associate Security Group	The selected security group will be bound to the ENI or supplementary ENI of the selected workload. A maximum of five security groups can be selected from the drop-down list. You must select one or multiple security groups to create a SecurityGroup. If no security group has not been created, click Create Security Group. After the security group is created, click the refresh button. NOTICE: A maximum of five security groups can be selected. Hover the cursor on next to the security group name, and you can view details about the security group.	64566556-bd6f-48fb-b2c6-df8f44617953 5451f1b0-bd6f-48fb-b2c6-df8f44617953

5. After setting the parameters, click OK.

   After the security group is created, the system automatically returns to the security group list page where you can see the new security group.

Using kubectl

1. Use kubectl to connect to the cluster. For details, see Connecting to a Cluster Using kubectl.
2. Create a description file named securitygroup-demo.yaml.

   vi securitygroup-demo.yaml

   For example, create the following SecurityGroup to bind all nginx workloads with two security groups 64566556-bd6f-48fb-b2c6-df8f44617953 and 5451f1b0-bd6f-48fb-b2c6-df8f44617953 that have been created in advance. An example is as follows:

   apiVersion: crd.yangtse.cni/v1
   kind: SecurityGroup
   metadata:
     name: demo
     namespace: default
   spec:
     podSelector:
       matchLabels:
         app: nginx    
     securityGroups:
     - id: 64566556-bd6f-48fb-b2c6-df8f44617953
     - id: 5451f1b0-bd6f-48fb-b2c6-df8f44617953

   Table 2 describes the parameters in the YAML file.

   Table 2 Description

   Field	Description	Mandatory
   apiVersion	API version. The value is crd.yangtse.cni/v1.	Yes
   kind	Type of the object to be created.	Yes
   metadata	Metadata definition of the resource object.	Yes
   name	Name of the SecurityGroup.	Yes
   namespace	Name of the namespace.	Yes
   spec	Detailed description of the SecurityGroup.	Yes
   podSelector	Used to define the workload to be associated with security groups in the SecurityGroup.	Yes
   securityGroups	Security group ID.	Yes

3. Run the following command to create the SecurityGroup:

   kubectl create -f securitygroup-demo.yaml

   If the following information is displayed, the SecurityGroup is being created.

   securitygroup.crd.yangtse.cni/demo created

4. Run the following command to view the SecurityGroup:

   kubectl get sg

   If the name of the created SecurityGroup is demo in the command output, the SecurityGroup is created successfully.

   NAME                       POD-SELECTOR                      AGE
   all-no                     map[matchLabels:map[app:nginx]]   4h1m
   s001test                   map[matchLabels:map[app:nginx]]   19m
   demo                       map[matchLabels:map[app:nginx]]   2m9s