// Ex. "ext4", "xfs". Implicitly inferred to be "ext4" if unspecified.
  optional string fsType = 2;

  // readOnly defaults to false (read/write). ReadOnly here will force
  // the ReadOnly setting in VolumeMounts.
  // +optional
  optional bool readOnly = 3;
}

// Preconditions must be fulfilled before an operation (update, delete, etc.) is carried out.

  // rely on the server to generate the name.  If that is the case, this field will contain an empty string.
  // +optional
  optional string name = 5;

  // Namespace is the namespace associated with the request (if any).
  // +optional
  optional string namespace = 6;

  // Operation is the operation being performed. This may be different than the operation

  // a creation or deletion of related object.
  // +optional
  optional k8s.io.api.core.v1.ObjectReference related = 9;

  // note is a human-readable description of the status of this operation.
  // Maximal length of the note is 1kB, but libraries should be prepared to
  // handle values up to 64kB.
  // +optional
  optional string note = 10;

  optional string scope = 4;
}

// RuleWithOperations is a tuple of Operations and Resources. It is recommended to make
// sure that all the tuple expansions are valid.
message RuleWithOperations {
  // Operations is the operations the admission hook cares about - CREATE, UPDATE, DELETE, CONNECT or *
  // for all of those operations and any future admission operations that are added.
  // If '*' is present, the length of the slice must be one.

  // This field must only be set by the entity completing the attach
  // operation, i.e. the external-attacher.
  // +optional
  optional VolumeError attachError = 3;

  // detachError represents the last error encountered during detach operation, if any.
  // This field must only be set by the entity completing the detach
  // operation, i.e. the external-attacher.
  // +optional

  // ClientConfig defines how to communicate with the hook.
  // Required
  optional WebhookClientConfig clientConfig = 2;

  // Rules describes what operations on what resources/subresources the webhook cares about.
  // The webhook cares about an operation if it matches _any_ Rule.
  // However, in order to prevent ValidatingAdmissionWebhooks and MutatingAdmissionWebhooks

  // +optional
  repeated NetworkPolicyPort ports = 1;

  // to is a list of destinations for outgoing traffic of pods selected for this rule.
  // Items in this list are combined using a logical OR operation. If this field is
  // empty or missing, this rule matches all destinations (traffic not restricted by
  // destination). If this field is present and contains at least one item, this rule

### Customizing the old values.yaml API

The new platform install API above deals with K8s level settings. The remaining values.yaml parameters deal with Istio
control plane operation rather than installation. For the time being, the operator just passes these through to the Helm
charts unmodified (but validated through a
[schema](pkg/apis/istio/v1alpha1/values_types.proto)). Values.yaml settings

  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time startTime = 2;

  // Represents time when the job was completed. It is not guaranteed to
  // be set in happens-before order across separate operations.
  // It is represented in RFC3339 form and is in UTC.
  // The completion time is only set when the job finishes successfully.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time completionTime = 3;

  // This field must only be set by the entity completing the attach
  // operation, i.e. the external-attacher.
  // +optional
  optional VolumeError attachError = 3;

  // detachError represents the last error encountered during detach operation, if any.
  // This field must only be set by the entity completing the detach
  // operation, i.e. the external-attacher.
  // +optional