Secure salt minion files.

By default salt minion meta files are created with wide
permissions.

This makes OS tokens, keystone credentials unprotected.

Patch fixes this.

Prod-Related: CEEMCP-13 unprotected keystone credentials
Customer-Found

Change-Id: I18283cff4aec795e0656b7b3519381792e8a6e54
4 files changed