Configuring Labels and Annotations

You can add an annotation on the console or using YAML.

Adding an Annotation on the Console

When creating a workload on the console, you can choose Advanced Settings > Labels and Annotations and add pod annotations to enable advanced functions.

For example, to add 14 GiB of ephemeral storage capacity for a pod, set Pod Annotation to resource.cce.io/extra-ephemeral-storage-in-GiB=14 and click Confirm.

Figure 1 Adding ephemeral storage capacity for a pod

Adding an Annotation Using YAML

When creating a workload using YAML, you can use the annotations parameter to enable advanced pod functions.

For example, when creating an Nginx workload, you can use annotations to add 14 GiB of ephemeral storage capacity for a pod.

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx # Workload name
spec:
  replicas: 1 # Number of pods
  selector:
    matchLabels: # Selector for selecting resources with specific labels.
      app: nginx  
  template:
    metadata:
      labels:     # Labels
        app: nginx
      annotations:
        resource.cce.io/extra-ephemeral-storage-in-GiB: '14'
    spec:
      containers:
      - image: nginx:latest   # {Image name}:{Image tag}
        name: nginx
      imagePullSecrets:
      - name: default-secret

Pod Labels

You can use pod labels to organize, select, and manage resources for pods to make it easy to use and maintain resources.

When you create a workload on the console, the following labels are added to the pod by default. The value of app is the workload name.

Figure 2 Pod Label

Example YAML:

...
spec:
  selector:
    matchLabels:
      app: nginx
      version: v1
  template:
    metadata:
      labels:
        app: nginx
        version: v1
    spec:
      ...