non-root user has no permission to create directory under /opt
directory. use "become: true" to resolve it.
Change-Id: I155efc4b1e0691da0aaf6ef19ca709e9dc2d9168
Now kolla dev mode only support clone master branch from git,
add version tag to support clone dedicated branch.
Change-Id: I88de238e5dc7461ba0662a3ecea9a2d80fd0db60