fix of tmpfs selinux permissions

[cooktheryan]

Which issue(s) this PR addresses:
Closes #310

[rootfs]

/assign @mangelajo

[openshift-ci]

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[mangelajo]

Couple of questions ':)

[cooktheryan]

@mangelajo ready for re-reveiw once you get your approver perms

[mangelajo]

/lgtm

[openshift-ci]

@mangelajo: changing LGTM is restricted to collaborators

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/lgtm

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[mangelajo]

/approved

[openshift-ci]

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