Volumes

OneChart settings for mounting volumes:

image:
  repository: nginx
  tag: 1.19.3

volumes:
  - name: data
    path: /data
    size: 10Gi
    storageClass: default

Check the Kubernetes manifest:

cat << EOF > values.yaml
image:
  repository: nginx
  tag: 1.19.3

volumes:
  - name: data
    path: /data
    size: 10Gi
    storageClass: default
EOF

helm template my-release onechart/onechart -f values.yaml

Using existing PersistentVolumeClaims

If for some reason you want to use an existing PersistentVolumeClaim, use the following syntax:

cat << EOF > values.yaml
image:
  repository: nginx
  tag: 1.19.3

volumes:
  - name: data
    path: /data
    existingClaim: my-static-claim
EOF

helm template my-release onechart/onechart -f values.yaml

About volumes

OneChart generates a PeristentVolumeClaim with this configuration and mounts it to the given path.

You have to know what storageClass is supported in your cluster.

• On Google Cloud, standard gets you disk
• On Azure, default gets you a normal block storage
• Amazon EKS, TODO
• Use do-block-storage for Digital Ocean