Adding Ephemeral Storage Capacity

Scenario

If the pod needs to write a large amount of data to rootfs or emptyDir or if the image size is greater than 30 GiB, you need to expand the ephemeral storage capacity.

Precautions

The maximum ephemeral storage capacity is 994 GiB.

Procedure

1. Log in to the CCI 2.0 console. In the navigation pane, choose Workloads. On the Deployments tab, click Create from YAML.

   

2. Fill in the YAML file as follows:

   kind: Deployment
   apiVersion: cci/v2
   metadata:
     name: nginx
   spec:
     replicas: 1
     selector:
       matchLabels:
         app: nginx
     template:
       metadata:
         labels:
           app: nginx
       spec:
         containers:
           - name: nginx
             image: nginx:latest
             resources:
               limits:
                 cpu: 500m
                 memory: 1Gi
               requests:
                 cpu: 500m
                 memory: 1Gi
         dnsPolicy: Default
         extraEphemeralStorage: 
           sizeInGiB: 10 # Ephemeral storage capacity to be added, in GiB

3. Go to the workload details page. On the Pods tab, locate the target pod and click View Terminal in the Operation column.

   

4. Enter lsblk and press Enter to check the system disk size after the expansion. (The ephemeral storage capacity is 30 GiB by default.)