The commit allow ScaleIO volume plugin to read SDC GUID value as a node label.
If binary drv_cfg is not installed, the plugin will still work properly.
If node label not found, it defaults to drv_cfg if installed.
This prepares volume plugins to run things in containers instead of running
them on the host.
As consequence, a mount.Exec interface needs to be passed from VolumeHost
down to SioClient.
This commit introduces the following updates and fixes:
- Enable scaleIO volume multip-mapping based on accessMode
- No longer uses "default" as default values for storagepool & protection domain
- validates capacity when capacity is zero
- Better naming for PV and volume
- make mount ro when accessModes contains ROM
This commit updates the code to set the default value of the readOnly attribute to false.
It also updates the example docs to add full list of supported plugin attributes and doc.
Vladimir Vivien