In this section, we'll look at some of the common volume types available in the leading public cloud platforms. Managing storage at scale is a difficult task that eventually involves physical resources, similar to nodes. If you choose to run your Kubernetes cluster on a public cloud platform, you can let your cloud provider deal with all these challenges and focus on your system. But it's important to understand the various options, constraints, and limitations of each volume type.
AWS provides the elastic block store as persistent storage for EC2 instances. An AWS Kubernetes cluster can use AWS EBS as persistent storage with the following limitations:
The pods must run on AWS EC2 instances as nodes
Pods can only access EBS volumes provisioned in their availability zone
An EBS volume can be mounted on a single EC2 instance.
Those are severe limitations. The restriction for a single availability zone, while great for...