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Help Center/ Cloud Container Engine/ User Guide/ Network/ Container Network/ Cloud Native Network 2.0 Settings/ Binding a Security Group to a Pod Using an Annotation

Binding a Security Group to a Pod Using an Annotation

Updated on 2025-01-07 GMT+08:00

Application Scenarios

In Cloud Native Network 2.0, pods use ENIs or sub-ENIs of the VPC. You can configure a security group for a pod using a pod's annotation.

Configure a security group in either of the following cases:

  • To newly bind a security group to a pod, use annotation yangtse.io/security-group-ids.
  • To bind more security groups to a pod, use annotation yangtse.io/additional-security-group-ids.
NOTE:

The priority of the security group bound to a pod using annotation yangtse.io/security-group-ids is higher than those of the security groups in the security group policy (SecurityGroup) and cluster container network configuration (NetworkAttachmentDefinition).

Prerequisites

A CCE Turbo cluster is available and the cluster version meets the following requirements:
  • v1.23: v1.23.16-r0 or later
  • v1.25: v1.25.11-r0 or later
  • v1.27: v1.27.8-r0 or later
  • v1.28: v1.28.6-r0 or later
  • v1.29: v1.29.2-r0 or later
  • Versions later than v1.29

Using kubectl

  • Create a workload with a security group configured. The security group bound to the pod is subject to the one configured using an annotation.
    NOTE:

    If the pod has been bound to a security group, the configuration will be overwritten.

    apiVersion: apps/v1
    kind: Deployment
    metadata:
      name: nginx
    spec:
      replicas: 3
      selector:
        matchLabels:
          app: nginx
      template:
        metadata:
          labels:
            app: nginx
          annotations:
            yangtse.io/security-group-ids: *****  # Security group ID. Use commas (,) to separate multiple security groups.
        spec:
          containers:
            - name: container-0
              image: nginx:alpine
              resources:
                limits:
                  cpu: 100m
                  memory: 200Mi
                requests:
                  cpu: 100m
                  memory: 200Mi
          imagePullSecrets:
            - name: default-secret
  • Add an additional security group for the workload.
    apiVersion: apps/v1
    kind: Deployment
    metadata:
      name: nginx
    spec:
      replicas: 3
      selector:
        matchLabels:
          app: nginx
      template:
        metadata:
          labels:
            app: nginx
          annotations:
            yangtse.io/additional-security-group-ids: *****  # Security group ID. Use commas (,) to separate multiple security groups.
        spec:
          containers:
            - name: container-0
              image: nginx:alpine
              resources:
                limits:
                  cpu: 100m
                  memory: 200Mi
                requests:
                  cpu: 100m
                  memory: 200Mi
          imagePullSecrets:
            - name: default-secret
Table 1 Annotations for configuring a security group for a pod

Annotation

Description

Value Range

yangtse.io/security-group-ids

Configure a security group for a pod. The security group of the pod is subject to the one configured using this annotation. If the pod already has a security group, the original security group will be overwritten.

Security group IDs. A maximum of five IDs are allowed. Use commas (,) to separate multiple security groups.

yangtse.io/additional-security-group-ids

Add more security groups to a pod.

Security group IDs. The total number of newly added security group IDs and existing security group IDs cannot exceed 5. Use commas (,) to separate multiple security groups.

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