Discussion about PVC usage for non root containers in OpenShift default namespace

[maysunfaisal]

When debugging issue #4027, we noticed that any stack user is going to face a permission issue if they modify the pvc volume mount path outside of what is prescribed by the image in default namespace.

For example, if the image gave write permissions to a path /mypath1 and the devfile pvc uses it in default namespace, it is fine. However if the user updates their devfile pvc volume mount path to /mypath2, then odo push is going to fail because /mypath2 does not have the write permission but /mypath1 did which was set by the image's dockerfile.

This however, is not an issue in non-default OpenShift namespaces. The pvc path has the correct ownership for the arbitrary user id and is able to read/write in the pvc path.

[maysunfaisal]

We want odo to spit out a warning saying we're running in default namespace and things may not run as expected