What would be an ideal way to share writable volume across containers for a web server?

Question

The application in question is Wordpress, I need to create replicas for rolling deployment / scaling purposes.

It seem can\'t create more then 1 instance of the sam

Answer 1

In https://kubernetes.io/docs/concepts/storage/persistent-volumes/#persistent-volumes you can see a table with the possible storage classes that allow ReadWriteMany (the option you are looking for).

• AzureFile (not suitable if you are using GCP)
• CephFS
• Glusterfs
• Quobyte
• NFS
• PortworxVolume

The one that I've tried is that of NFS. I had no issues with it, but I guess you should also consider potential performance issues. However, if the writes are to be occassional, it shouldn't be much of an issue.