google-cloud-platform - 如何在Replication Controller中使用永久磁盘？谷歌云/kubernetes

Question

我想在复制 Controller 中使用永久磁盘，但是如果我使用gcePersistentDisk，则控制台会向我返回错误

ReadOnly must be true for replicated pods > 1, as GCE PD can only be mounted on multiple machines if it is read-only.

Answer 1

从错误消息和从docs:

A feature of PD is that they can be mounted as read-only by multiple consumers simultaneously. This means that you can pre-populate a PD with your dataset and then serve it in parallel from as many pods as you need. Unfortunately, PDs can only be mounted by a single consumer in read-write mode - no simultaneous readers allowed.

因此，您有两种方法可以解决此问题:

将您的ReplicationController中的replicas设置为1

将音量设为readOnly: true

gcePersistentDisk:
  pdName: my-data-disk
  fsType: ext4
  readOnly: true