4 from routes import Mapper
9 from invirt import database
10 from invirt.config import structs as config
12 class RemConfFS(routefs.RouteFS):
14 RemConfFS creates a filesytem for configuring remctl, like this:
22 The machine list and the acls are drawn from a database.
25 def __init__(self, *args, **kw):
26 """Initialize the filesystem and set it to allow_other access besides
27 the user who mounts the filesystem (i.e. root)
29 super(RemConfFS, self).__init__(*args, **kw)
31 self.fuse_args.add("allow_other", True)
33 openlog('invirt-remconffs ', LOG_PID, LOG_DAEMON)
35 syslog(LOG_DEBUG, 'Init complete.')
39 m.connect('', controller='getroot')
40 m.connect('acl', controller='getmachines')
41 m.connect('acl/:machine', controller='getacl')
42 m.connect('conf', controller='getconf')
46 if time() - self.lasttime > 5:
47 self.lasttime = time()
48 database.clear_cache()
49 self.machines = dict((machine.name, machine) for machine in database.session.query(database.Machine).all())
51 def getroot(self, **kw):
52 return ['acl', 'conf']
54 def getacl(self, machine, **kw):
55 """Build the ACL file for a machine
58 machine = self.machines[machine]
59 users = [acl.user for acl in machine.acl]
60 return "\n".join(map(self.userToPrinc, users)
61 + ['include /etc/remctl/acl/web',
64 def getconf(self, **kw):
65 """Build the master conf file, with all machines
67 return '\n'.join("control %s /usr/sbin/invirt-remote-proxy-control"
68 " /etc/remctl/remconffs/acl/%s"
69 % (machine_name, machine_name)
70 for machine_name in self.getmachines())+'\n'
72 def getmachines(self, **kw):
73 """Get the list of VMs in the database, clearing the cache if it's
74 older than 15 seconds"""
76 return self.machines.keys()
78 def userToPrinc(self, user):
79 """Convert Kerberos v4-style names to v5-style and append a default
80 realm if none is specified
83 (princ, realm) = user.split('@')
86 realm = config.authn[0].realm
88 return princ.replace('.', '/') + '@' + realm
90 if __name__ == '__main__':
92 routefs.main(RemConfFS)