export dir and host__*.cfg created read-only

    dr-xr-xr-x 2 root root 4096 Jun 1 22:53 /var/lib/nagios/export/
    -r--r--r-- 1 root root 294 Jun 1 22:53 host__is-stagingstack-mojo-is-vault-ps45-vault-0.cfg

This makes them awkward to manage as the sync processes we're using do not run as root.

Please consider setting "perms" to include write bits in the appropriate mkdir/render_template calls; the defaults are for read-only:

hooks/charmhelpers/core/host.py:467:def mkdir(path, owner='root', group='root', perms=0o555, force=False):
hooks/charmhelpers/core/services/helpers.py:236:class TemplateCallback(ManagerCallback):
hooks/charmhelpers/core/services/helpers.py:254: def __init__(self, source, target,
hooks/charmhelpers/core/services/helpers.py:255: owner='root', group='root', perms=0o444,