fca0da5069
single-machine.rst and index.rst Before this, one had to create /opt/stack manually and chown it to the stack user. Now it is created when the user is created. This is the same way the multi-node guide handles it. A stack group is created too. Change-Id: I5363d81c8fb38796f565cc6ebf6ab2dee2673989 Closes-Bug: #1673787 Closes-Bug: #1671409