X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=accounts.py;h=3711a0d46dfbd430ad13cc6720eb1ccb392227d0;hb=673e1ce1fc12e96341f12d9cd45efd280569c38d;hp=da880492fe98bc9cc188babf25cfbb4274a47052;hpb=2bea6afe154924341f57f7b8633b9ca87b53b82f;p=nodemanager.git diff --git a/accounts.py b/accounts.py index da88049..3711a0d 100644 --- a/accounts.py +++ b/accounts.py @@ -29,6 +29,12 @@ import logger import tools +# When this variable is true, start after any ensure_created +Startingup = False +# Cumulative delay for starts when Startingup is true +csd_lock = threading.Lock() +cumstartdelay = 0 + # shell path -> account class association shell_acct_class = {} # account type -> account class association @@ -44,9 +50,12 @@ def register_class(acct_class): name_worker_lock = threading.Lock() name_worker = {} +def allpwents(): + return [pw_ent for pw_ent in pwd.getpwall() if pw_ent[6] in shell_acct_class] + def all(): """Return the names of all accounts on the system with recognized shells.""" - return [pw_ent[0] for pw_ent in pwd.getpwall() if pw_ent[6] in shell_acct_class] + return [pw_ent[0] for pw_ent in allpwents()] def get(name): """Return the worker object for a particular username. If no such object exists, create it first.""" @@ -59,25 +68,29 @@ def get(name): class Account: def __init__(self, rec): + logger.verbose('Initing account %s'%rec['name']) self.name = rec['name'] self.keys = '' + self.initscriptchanged = False self.configure(rec) @staticmethod - def create(name): abstract + def create(name, vref = None): abstract @staticmethod def destroy(name): abstract def configure(self, rec): """Write to my authorized_keys file.""" + logger.verbose('in accounts:configure for %s'%self.name) new_keys = rec['keys'] if new_keys != self.keys: self.keys = new_keys dot_ssh = '/home/%s/.ssh' % self.name def do_installation(): if not os.access(dot_ssh, os.F_OK): os.mkdir(dot_ssh) + os.chmod(dot_ssh, 0700) tools.write_file(dot_ssh + '/authorized_keys', lambda f: f.write(new_keys)) - logger.log('%s: installing ssh keys' % self.name) + logger.verbose('%s: installing ssh keys' % self.name) tools.fork_as(self.name, do_installation) def start(self, delay=0): pass @@ -100,19 +113,30 @@ class Worker: def ensure_created(self, rec): """Cause the account specified by to exist if it doesn't already.""" - self._q.put((self._ensure_created, rec.copy())) + if rec.has_key('name'): + logger.verbose('Worker.ensure_created with name=%s'%rec['name']) + self._q.put((self._ensure_created, rec.copy(), Startingup)) + logger.verbose('Worker queue has %d item(s)'%self._q.qsize()) - def _ensure_created(self, rec): + def _ensure_created(self, rec, startingup): curr_class = self._get_class() next_class = type_acct_class[rec['type']] if next_class != curr_class: self._destroy(curr_class) self._create_sem.acquire() - try: next_class.create(self.name) + try: next_class.create(self.name, rec['vref']) finally: self._create_sem.release() if not isinstance(self._acct, next_class): self._acct = next_class(rec) else: self._acct.configure(rec) - if next_class != curr_class: self._acct.start() + if startingup: + csd_lock.acquire() + global cumstartdelay + delay = cumstartdelay + cumstartdelay += 2 + csd_lock.release() + self._acct.start(delay=delay) + elif next_class != curr_class or self._acct.initscriptchanged: + self._acct.start() def ensure_destroyed(self): self._q.put((self._ensure_destroyed,)) def _ensure_destroyed(self): self._destroy(self._get_class()) @@ -139,6 +163,8 @@ class Worker: """Repeatedly pull commands off the queue and execute. If memory usage becomes an issue, it might be wise to terminate after a while.""" while True: try: + logger.verbose('Worker:_run : getting - size is %d'%self._q.qsize()) cmd = self._q.get() cmd[0](*cmd[1:]) - except: logger.log_exc() + except: + logger.log_exc(self.name)