Exemple #1
0
 def makersc(aa, check=True):
     if not aa:
         return ([], None, None)
     ra = [resource.parse_url(u) for u in aa]
     local = ra[0]
     remote = None
     if len(ra) > 1:
         remote = ra[1]
     if check and not local.can_connect_to(remote):
         raise GsyncdError("%s cannot work with %s" % (local.path, remote and remote.path))
     return (ra, local, remote)
Exemple #2
0
 def makersc(aa, check=True):
     if not aa:
         return ([], None, None)
     ra = [resource.parse_url(u) for u in aa]
     local = ra[0]
     remote = None
     if len(ra) > 1:
         remote = ra[1]
     if check and not local.can_connect_to(remote):
         raise GsyncdError("%s cannot work with %s" % (local.path, remote and remote.path))
     return (ra, local, remote)
Exemple #3
0
def main_i():
    """internal main routine

    parse command line, decide what action will be taken;
    we can either:
    - query/manipulate configuration
    - format gsyncd urls using gsyncd's url parsing engine
    - start service in following modes, in given stages:
      - monitor: startup(), monitor()
      - master: startup(), connect_remote(), connect(), service_loop()
      - slave: startup(), connect(), service_loop()
    """
    rconf = {'go_daemon': 'should'}

    def store_abs(opt, optstr, val, parser):
        if val and val != '-':
            val = os.path.abspath(val)
        setattr(parser.values, opt.dest, val)
    def store_local(opt, optstr, val, parser):
        rconf[opt.dest] = val
    def store_local_curry(val):
        return lambda o, oo, vx, p: store_local(o, oo, val, p)
    def store_local_obj(op, dmake):
        return lambda o, oo, vx, p: store_local(o, oo, FreeObject(op=op, **dmake(vx)), p)

    op = OptionParser(usage="%prog [options...] <master> <slave>", version="%prog 0.0.1")
    op.add_option('--gluster-command-dir', metavar='DIR',   default='')
    op.add_option('--gluster-log-file',    metavar='LOGF',  default=os.devnull, type=str, action='callback', callback=store_abs)
    op.add_option('--gluster-log-level',   metavar='LVL')
    op.add_option('--gluster-params',      metavar='PRMS',  default='')
    op.add_option('--gluster-cli-options', metavar='OPTS',  default='--log-file=-')
    op.add_option('--mountbroker',         metavar='LABEL')
    op.add_option('-p', '--pid-file',      metavar='PIDF',  type=str, action='callback', callback=store_abs)
    op.add_option('-l', '--log-file',      metavar='LOGF',  type=str, action='callback', callback=store_abs)
    op.add_option('--state-file',          metavar='STATF', type=str, action='callback', callback=store_abs)
    op.add_option('--ignore-deletes',      default=False, action='store_true')
    op.add_option('--use-rsync-xattrs',    default=False, action='store_true')
    op.add_option('-L', '--log-level',     metavar='LVL')
    op.add_option('-r', '--remote-gsyncd', metavar='CMD',   default=os.path.abspath(sys.argv[0]))
    op.add_option('--volume-id',           metavar='UUID')
    op.add_option('--session-owner',       metavar='ID')
    op.add_option('-s', '--ssh-command',   metavar='CMD',   default='ssh')
    op.add_option('--rsync-command',       metavar='CMD',   default='rsync')
    op.add_option('--rsync-options',       metavar='OPTS',  default='--sparse')
    op.add_option('--rsync-ssh-options',   metavar='OPTS',  default='--compress')
    op.add_option('--timeout',             metavar='SEC',   type=int, default=120)
    op.add_option('--connection-timeout',  metavar='SEC',   type=int, default=60, help=SUPPRESS_HELP)
    op.add_option('--sync-jobs',           metavar='N',     type=int, default=3)
    op.add_option('--turns',               metavar='N',     type=int, default=0, help=SUPPRESS_HELP)
    op.add_option('--allow-network',       metavar='IPS',   default='')
    op.add_option('--state-socket-unencoded', metavar='SOCKF', type=str, action='callback', callback=store_abs)
    op.add_option('--checkpoint',          metavar='LABEL', default='')
    # tunables for failover/failback mechanism:
    # None   - gsyncd behaves as normal
    # blind  - gsyncd works with xtime pairs to identify
    #          candidates for synchronization
    # wrapup - same as normal mode but does not assign
    #          xtimes to orphaned files
    # see crawl() for usage of the above tunables
    op.add_option('--special-sync-mode', type=str, help=SUPPRESS_HELP)

    op.add_option('-c', '--config-file',   metavar='CONF',  type=str, action='callback', callback=store_local)
    # duh. need to specify dest or value will be mapped to None :S
    op.add_option('--monitor', dest='monitor', action='callback', callback=store_local_curry(True))
    op.add_option('--feedback-fd', dest='feedback_fd', type=int, help=SUPPRESS_HELP, action='callback', callback=store_local)
    op.add_option('--listen', dest='listen', help=SUPPRESS_HELP,      action='callback', callback=store_local_curry(True))
    op.add_option('-N', '--no-daemon', dest="go_daemon",    action='callback', callback=store_local_curry('dont'))
    op.add_option('--debug', dest="go_daemon",              action='callback', callback=lambda *a: (store_local_curry('dont')(*a),
                                                                                                    setattr(a[-1].values, 'log_file', '-'),
                                                                                                    setattr(a[-1].values, 'log_level', 'DEBUG'))),

    for a in ('check', 'get'):
        op.add_option('--config-' + a,      metavar='OPT',  type=str, dest='config', action='callback',
                      callback=store_local_obj(a, lambda vx: {'opt': vx}))
    op.add_option('--config-get-all', dest='config', action='callback', callback=store_local_obj('get', lambda vx: {'opt': None}))
    for m in ('', '-rx', '-glob'):
        # call this code 'Pythonic' eh?
        # have to define a one-shot local function to be able to inject (a value depending on the)
        # iteration variable into the inner lambda
        def conf_mod_opt_regex_variant(rx):
            op.add_option('--config-set' + m,   metavar='OPT VAL', type=str, nargs=2, dest='config', action='callback',
                          callback=store_local_obj('set', lambda vx: {'opt': vx[0], 'val': vx[1], 'rx': rx}))
            op.add_option('--config-del' + m,   metavar='OPT',  type=str, dest='config', action='callback',
                          callback=store_local_obj('del', lambda vx: {'opt': vx, 'rx': rx}))
        conf_mod_opt_regex_variant(m and m[1:] or False)

    op.add_option('--normalize-url',           dest='url_print', action='callback', callback=store_local_curry('normal'))
    op.add_option('--canonicalize-url',        dest='url_print', action='callback', callback=store_local_curry('canon'))
    op.add_option('--canonicalize-escape-url', dest='url_print', action='callback', callback=store_local_curry('canon_esc'))

    tunables = [ norm(o.get_opt_string()[2:]) for o in op.option_list if o.callback in (store_abs, 'store_true', None) and o.get_opt_string() not in ('--version', '--help') ]
    remote_tunables = [ 'listen', 'go_daemon', 'timeout', 'session_owner', 'config_file', 'use_rsync_xattrs' ]
    rq_remote_tunables = { 'listen': True }

    # precedence for sources of values: 1) commandline, 2) cfg file, 3) defaults
    # -- for this to work out we need to tell apart defaults from explicitly set
    # options... so churn out the defaults here and call the parser with virgin
    # values container.
    defaults = op.get_default_values()
    opts, args = op.parse_args(values=optparse.Values())
    confdata = rconf.get('config')
    if not (len(args) == 2 or \
            (len(args) == 1 and rconf.get('listen')) or \
            (len(args) <= 2 and confdata) or \
            rconf.get('url_print')):
        sys.stderr.write("error: incorrect number of arguments\n\n")
        sys.stderr.write(op.get_usage() + "\n")
        sys.exit(1)

    restricted = os.getenv('_GSYNCD_RESTRICTED_')

    if restricted:
        allopts = {}
        allopts.update(opts.__dict__)
        allopts.update(rconf)
        bannedtuns = set(allopts.keys()) - set(remote_tunables)
        if bannedtuns:
            raise GsyncdError('following tunables cannot be set with restricted SSH invocaton: ' + \
                              ', '.join(bannedtuns))
        for k, v in rq_remote_tunables.items():
            if not k in allopts or allopts[k] != v:
                raise GsyncdError('tunable %s is not set to value %s required for restricted SSH invocaton' % \
                                  (k, v))

    confrx = getattr(confdata, 'rx', None)
    if confrx:
        # peers are regexen, don't try to parse them
        if confrx == 'glob':
            args = [ '\A' + fnmatch.translate(a) for a in args ]
        canon_peers = args
        namedict = {}
    else:
        rscs = [resource.parse_url(u) for u in args]
        dc = rconf.get('url_print')
        if dc:
            for r in rscs:
                print(r.get_url(**{'normal': {},
                                   'canon': {'canonical': True},
                                   'canon_esc': {'canonical': True, 'escaped': True}}[dc]))
            return
        local = remote = None
        if rscs:
            local = rscs[0]
            if len(rscs) > 1:
                remote = rscs[1]
            if not local.can_connect_to(remote):
                raise GsyncdError("%s cannot work with %s" % (local.path, remote and remote.path))
        pa = ([], [], [])
        urlprms = ({}, {'canonical': True}, {'canonical': True, 'escaped': True})
        for x in rscs:
            for i in range(len(pa)):
                pa[i].append(x.get_url(**urlprms[i]))
        peers, canon_peers, canon_esc_peers = pa
        # creating the namedict, a dict representing various ways of referring to / repreenting
        # peers to be fillable in config templates
        mods = (lambda x: x, lambda x: x[0].upper() + x[1:], lambda x: 'e' + x[0].upper() + x[1:])
        if remote:
            rmap = { local: ('local', 'master'), remote: ('remote', 'slave') }
        else:
            rmap = { local: ('local', 'slave') }
        namedict = {}
        for i in range(len(rscs)):
            x = rscs[i]
            for name in rmap[x]:
                for j in range(3):
                    namedict[mods[j](name)] = pa[j][i]
                if x.scheme == 'gluster':
                    namedict[name + 'vol'] = x.volume
    if not 'config_file' in rconf:
        rconf['config_file'] = os.path.join(os.path.dirname(sys.argv[0]), "conf/gsyncd.conf")
    gcnf = GConffile(rconf['config_file'], canon_peers, defaults.__dict__, opts.__dict__, namedict)

    checkpoint_change = False
    if confdata:
        opt_ok = norm(confdata.opt) in tunables + [None]
        if confdata.op == 'check':
            if opt_ok:
                sys.exit(0)
            else:
                sys.exit(1)
        elif not opt_ok:
            raise GsyncdError("not a valid option: " + confdata.opt)
        if confdata.op == 'get':
            gcnf.get(confdata.opt)
        elif confdata.op == 'set':
            gcnf.set(confdata.opt, confdata.val, confdata.rx)
        elif confdata.op == 'del':
            gcnf.delete(confdata.opt, confdata.rx)
        # when modifying checkpoint, it's important to make a log
        # of that, so in that case we go on to set up logging even
        # if its just config invocation
        if confdata.opt == 'checkpoint' and confdata.op in ('set', 'del') and \
           not confdata.rx:
            checkpoint_change = True
        if not checkpoint_change:
            return

    gconf.__dict__.update(defaults.__dict__)
    gcnf.update_to(gconf.__dict__)
    gconf.__dict__.update(opts.__dict__)
    gconf.configinterface = gcnf

    if restricted and gconf.allow_network:
        ssh_conn = os.getenv('SSH_CONNECTION')
        if not ssh_conn:
            #legacy env var
            ssh_conn = os.getenv('SSH_CLIENT')
        if ssh_conn:
            allowed_networks = [ IPNetwork(a) for a in gconf.allow_network.split(',') ]
            client_ip = IPAddress(ssh_conn.split()[0])
            allowed = False
            for nw in allowed_networks:
                if client_ip in nw:
                    allowed = True
                    break
            if not allowed:
                raise GsyncdError("client IP address is not allowed")

    ffd = rconf.get('feedback_fd')
    if ffd:
        fcntl.fcntl(ffd, fcntl.F_SETFD, fcntl.FD_CLOEXEC)

    #normalize loglevel
    lvl0 = gconf.log_level
    if isinstance(lvl0, str):
        lvl1 = lvl0.upper()
        lvl2 = logging.getLevelName(lvl1)
        # I have _never_ _ever_ seen such an utterly braindead
        # error condition
        if lvl2 == "Level " + lvl1:
            raise GsyncdError('cannot recognize log level "%s"' % lvl0)
        gconf.log_level = lvl2

    if checkpoint_change:
        GLogger._gsyncd_loginit(log_file=gconf.log_file, label='conf')
        if confdata.op == 'set':
            logging.info('checkpoint %s set' % confdata.val)
        elif confdata.op == 'del':
            logging.info('checkpoint info was reset')
        return

    go_daemon = rconf['go_daemon']
    be_monitor = rconf.get('monitor')

    if not be_monitor and isinstance(remote, resource.SSH) and \
       go_daemon == 'should':
        go_daemon = 'postconn'
        log_file = None
    else:
        log_file = gconf.log_file
    if be_monitor:
        label = 'monitor'
    elif remote:
        #master
        label = ''
    else:
        label = 'slave'
    startup(go_daemon=go_daemon, log_file=log_file, label=label)

    if be_monitor:
        return monitor()

    logging.info("syncing: %s" % " -> ".join(peers))
    resource.Popen.init_errhandler()
    if remote:
        go_daemon = remote.connect_remote(go_daemon=go_daemon)
        if go_daemon:
            startup(go_daemon=go_daemon, log_file=gconf.log_file)
            # complete remote connection in child
            remote.connect_remote(go_daemon='done')
    local.connect()
    if ffd:
        os.close(ffd)
    local.service_loop(*[r for r in [remote] if r])
Exemple #4
0
def main_i():
    rconf = {'go_daemon': 'should'}

    def store_abs(opt, optstr, val, parser):
        setattr(parser.values, opt.dest, os.path.abspath(val))
    def store_local(opt, optstr, val, parser):
        rconf[opt.dest] = val
    def store_local_curry(val):
        return lambda o, oo, vx, p: store_local(o, oo, val, p)

    op = OptionParser(usage="%prog [options...] <master> <slave>", version="%prog 0.0.1")
    op.add_option('--gluster-command',     metavar='CMD',   default='glusterfs')
    op.add_option('--gluster-log-file',    metavar='LOGF',  default=os.devnull, type=str, action='callback', callback=store_abs)
    op.add_option('--gluster-log-level',   metavar='LVL')
    op.add_option('-p', '--pid-file',      metavar='PIDF',  type=str, action='callback', callback=store_abs)
    op.add_option('-l', '--log-file',      metavar='LOGF',  type=str, action='callback', callback=store_abs)
    op.add_option('-L', '--log-level',     metavar='LVL')
    op.add_option('-r', '--remote-gsyncd', metavar='CMD',   default=os.path.abspath(sys.argv[0]))
    op.add_option('-s', '--ssh-command',   metavar='CMD',   default='ssh')
    op.add_option('--rsync-command',       metavar='CMD',   default='rsync')
    op.add_option('--rsync-extra',         metavar='ARGS',  default='-sS', help=SUPPRESS_HELP)
    op.add_option('--timeout',             metavar='SEC',   type=int, default=120)
    op.add_option('--sync-jobs',           metavar='N',     type=int, default=3)
    op.add_option('--turns',               metavar='N',     type=int, default=0, help=SUPPRESS_HELP)

    op.add_option('-c', '--config-file',   metavar='CONF',  type=str, action='callback', callback=store_local)
    # duh. need to specify dest or value will be mapped to None :S
    op.add_option('--listen', dest='listen', help=SUPPRESS_HELP,      action='callback', callback=store_local_curry(True))
    op.add_option('-N', '--no-daemon', dest="go_daemon",    action='callback', callback=store_local_curry('dont'))
    op.add_option('--debug', dest="go_daemon",              action='callback', callback=lambda *a: (store_local_curry('dont')(*a),
                                                                                                    a[-1].values.__dict__.get('log_level') or \
                                                                                                     a[-1].values.__dict__.update(log_level='DEBUG')))
    op.add_option('--config-get',           metavar='OPT',  type=str, dest='config', action='callback', callback=store_local)
    op.add_option('--config-get-all', dest='config', action='callback', callback=store_local_curry(True))
    op.add_option('--config-set',           metavar='OPT VAL', type=str, nargs=2, dest='config', action='callback',
                   callback=lambda o, oo, vx, p: store_local(o, oo, (vx[0], vx[1], False), p))
    op.add_option('--config-set-rx',        metavar='OPT VAL', type=str, nargs=2, dest='config', action='callback',
                   callback=lambda o, oo, vx, p: store_local(o, oo, (vx[0], vx[1], True), p))
    op.add_option('--config-del',           metavar='OPT',  type=str, dest='config', action='callback', callback=lambda o, oo, vx, p:
                                                                                                                    store_local(o, oo, (vx, False, False), p))
    op.add_option('--config-del-rx',        metavar='OPT',  type=str, dest='config', action='callback', callback=lambda o, oo, vx, p:
                                                                                                                    store_local(o, oo, (vx, False, True), p))
    op.add_option('--canonicalize-url',        dest='do_canon', action='callback', callback=store_local_curry('raw'))
    op.add_option('--canonicalize-escape-url', dest='do_canon', action='callback', callback=store_local_curry('escaped'))

    # precedence for sources of values: 1) commandline, 2) cfg file, 3) defaults
    # -- for this to work out we need to tell apart defaults from explicitly set
    # options... so churn out the defaults here and call the parser with virgin
    # values container.
    defaults = op.get_default_values()
    opts, args = op.parse_args(values=optparse.Values())
    confdata = rconf.get('config')
    if not (len(args) == 2 or \
            (len(args) == 1 and rconf.get('listen')) or \
            (len(args) <= 2 and confdata) or \
            rconf.get('do_canon')):
        sys.stderr.write("error: incorrect number of arguments\n\n")
        sys.stderr.write(op.get_usage() + "\n")
        sys.exit(1)

    if confdata and isinstance(confdata, tuple) and confdata[2]:
        # peers are regexen, don't try to parse them
        canon_peers = args
    else:
        rscs = [resource.parse_url(u) for u in args]
        dc = rconf.get('do_canon')
        if dc:
            for r in rscs:
                print(r.get_url(canonical=True, escaped=(dc=='escaped')))
            return
        local = remote = None
        if rscs:
          local = rscs[0]
          if len(rscs) > 1:
              remote = rscs[1]
          if not local.can_connect_to(remote):
              raise RuntimeError("%s cannot work with %s" % (local.path, remote and remote.path))
        pa = ([], [])
        canon = [False, True]
        for x in (local, remote):
            if x:
                for i in range(2):
                    pa[i].append(x.get_url(canonical=canon[i]))
        peers, canon_peers = pa
    if not 'config_file' in rconf:
        rconf['config_file'] = os.path.join(os.path.dirname(sys.argv[0]), "conf/gsyncd.conf")
    gcnf = GConffile(rconf['config_file'], canon_peers)

    if confdata:
        if isinstance(confdata, tuple):
            if confdata[1]:
                gcnf.set(*confdata)
            else:
                gcnf.delete(confdata[0], confdata[1])
        else:
            if confdata == True:
                confdata = None
            gcnf.get(confdata)
        return

    gconf.__dict__.update(defaults.__dict__)
    gcnf.update_to(gconf.__dict__)
    gconf.__dict__.update(opts.__dict__)

    #normalize loglevel
    lvl0 = gconf.log_level
    if isinstance(lvl0, str):
        lvl1 = lvl0.upper()
        lvl2 = logging.getLevelName(lvl1)
        # I have _never_ _ever_ seen such an utterly braindead
        # error condition
        if lvl2 == "Level " + lvl1:
            raise RuntimeError('cannot recognize log level "%s"' % lvl0)
        gconf.log_level = lvl2

    go_daemon = rconf['go_daemon']

    if isinstance(remote, resource.SSH) and go_daemon == 'should':
        go_daemon = 'postconn'
        log_file = None
    else:
        log_file = gconf.log_file
    startup(go_daemon=go_daemon, log_file=log_file, slave=(not remote))

    logging.info("syncing: %s" % " -> ".join(peers))
    if remote:
        go_daemon = remote.connect_remote(go_daemon=go_daemon)
        if go_daemon:
            startup(go_daemon=go_daemon, log_file=gconf.log_file)
            # complete remote connection in child
            remote.connect_remote(go_daemon='done')
    local.connect()
    local.service_loop(*[r for r in [remote] if r])

    logging.info("exiting.")
Exemple #5
0
def main_i():
    rconf = {'go_daemon': 'should'}

    def store_abs(opt, optstr, val, parser):
        if val and val != '-':
            val = os.path.abspath(val)
        setattr(parser.values, opt.dest, val)
    def store_local(opt, optstr, val, parser):
        rconf[opt.dest] = val
    def store_local_curry(val):
        return lambda o, oo, vx, p: store_local(o, oo, val, p)
    def store_local_obj(op, dmake):
        return lambda o, oo, vx, p: store_local(o, oo, FreeObject(op=op, **dmake(vx)), p)

    op = OptionParser(usage="%prog [options...] <master> <slave>", version="%prog 0.0.1")
    op.add_option('--gluster-command',     metavar='CMD',   default='glusterfs')
    op.add_option('--gluster-log-file',    metavar='LOGF',  default=os.devnull, type=str, action='callback', callback=store_abs)
    op.add_option('--gluster-log-level',   metavar='LVL')
    op.add_option('-p', '--pid-file',      metavar='PIDF',  type=str, action='callback', callback=store_abs)
    op.add_option('-l', '--log-file',      metavar='LOGF',  type=str, action='callback', callback=store_abs)
    op.add_option('--state-file',          metavar='STATF', type=str, action='callback', callback=store_abs)
    op.add_option('-L', '--log-level',     metavar='LVL')
    op.add_option('-r', '--remote-gsyncd', metavar='CMD',   default=os.path.abspath(sys.argv[0]))
    op.add_option('--volume-id',           metavar='UUID')
    op.add_option('--session-owner',       metavar='ID')
    op.add_option('-s', '--ssh-command',   metavar='CMD',   default='ssh')
    op.add_option('--rsync-command',       metavar='CMD',   default='rsync')
    op.add_option('--rsync-extra',         metavar='ARGS',  default='-sS', help=SUPPRESS_HELP)
    op.add_option('--timeout',             metavar='SEC',   type=int, default=120)
    op.add_option('--sync-jobs',           metavar='N',     type=int, default=3)
    op.add_option('--turns',               metavar='N',     type=int, default=0, help=SUPPRESS_HELP)

    op.add_option('-c', '--config-file',   metavar='CONF',  type=str, action='callback', callback=store_local)
    # duh. need to specify dest or value will be mapped to None :S
    op.add_option('--monitor', dest='monitor', action='callback', callback=store_local_curry(True))
    op.add_option('--feedback-fd', dest='feedback_fd', type=int, help=SUPPRESS_HELP, action='callback', callback=store_local)
    op.add_option('--listen', dest='listen', help=SUPPRESS_HELP,      action='callback', callback=store_local_curry(True))
    op.add_option('-N', '--no-daemon', dest="go_daemon",    action='callback', callback=store_local_curry('dont'))
    op.add_option('--debug', dest="go_daemon",              action='callback', callback=lambda *a: (store_local_curry('dont')(*a),
                                                                                                    setattr(a[-1].values, 'log_file', '-'),
                                                                                                    setattr(a[-1].values, 'log_level', 'DEBUG'))),

    for a in ('check', 'get'):
        op.add_option('--config-' + a,      metavar='OPT',  type=str, dest='config', action='callback',
                      callback=store_local_obj(a, lambda vx: {'opt': vx}))
    op.add_option('--config-get-all', dest='config', action='callback', callback=store_local_obj('get', lambda vx: {'opt': None}))
    for m in ('', '-rx'):
        # call this code 'Pythonic' eh?
        # have to define a one-shot local function to be able to inject (a value depending on the)
        # iteration variable into the inner lambda
        def conf_mod_opt_regex_variant(rx):
            op.add_option('--config-set' + m,   metavar='OPT VAL', type=str, nargs=2, dest='config', action='callback',
                          callback=store_local_obj('set', lambda vx: {'opt': vx[0], 'val': vx[1], 'rx': rx}))
            op.add_option('--config-del' + m,   metavar='OPT',  type=str, dest='config', action='callback',
                          callback=store_local_obj('del', lambda vx: {'opt': vx, 'rx': rx}))
        conf_mod_opt_regex_variant(not not m)

    op.add_option('--normalize-url',           dest='url_print', action='callback', callback=store_local_curry('normal'))
    op.add_option('--canonicalize-url',        dest='url_print', action='callback', callback=store_local_curry('canon'))
    op.add_option('--canonicalize-escape-url', dest='url_print', action='callback', callback=store_local_curry('canon_esc'))

    tunables = [ norm(o.get_opt_string()[2:]) for o in op.option_list if o.callback in (store_abs, None) and o.get_opt_string() not in ('--version', '--help') ]

    # precedence for sources of values: 1) commandline, 2) cfg file, 3) defaults
    # -- for this to work out we need to tell apart defaults from explicitly set
    # options... so churn out the defaults here and call the parser with virgin
    # values container.
    defaults = op.get_default_values()
    opts, args = op.parse_args(values=optparse.Values())
    confdata = rconf.get('config')
    if not (len(args) == 2 or \
            (len(args) == 1 and rconf.get('listen')) or \
            (len(args) <= 2 and confdata) or \
            rconf.get('url_print')):
        sys.stderr.write("error: incorrect number of arguments\n\n")
        sys.stderr.write(op.get_usage() + "\n")
        sys.exit(1)

    if getattr(confdata, 'rx', None):
        # peers are regexen, don't try to parse them
        canon_peers = args
        namedict = {}
    else:
        rscs = [resource.parse_url(u) for u in args]
        dc = rconf.get('url_print')
        if dc:
            for r in rscs:
                print(r.get_url(**{'normal': {},
                                   'canon': {'canonical': True},
                                   'canon_esc': {'canonical': True, 'escaped': True}}[dc]))
            return
        local = remote = None
        if rscs:
            local = rscs[0]
            if len(rscs) > 1:
                remote = rscs[1]
            if not local.can_connect_to(remote):
                raise GsyncdError("%s cannot work with %s" % (local.path, remote and remote.path))
        pa = ([], [], [])
        urlprms = ({}, {'canonical': True}, {'canonical': True, 'escaped': True})
        for x in rscs:
            for i in range(len(pa)):
                pa[i].append(x.get_url(**urlprms[i]))
        peers, canon_peers, canon_esc_peers = pa
        # creating the namedict, a dict representing various ways of referring to / repreenting
        # peers to be fillable in config templates
        mods = (lambda x: x, lambda x: x[0].upper() + x[1:], lambda x: 'e' + x[0].upper() + x[1:])
        if remote:
            rmap = { local: ('local', 'master'), remote: ('remote', 'slave') }
        else:
            rmap = { local: ('local', 'slave') }
        namedict = {}
        for i in range(len(rscs)):
            x = rscs[i]
            for name in rmap[x]:
                for j in range(3):
                    namedict[mods[j](name)] = pa[j][i]
                if x.scheme == 'gluster':
                    namedict[name + 'vol'] = x.volume
    if not 'config_file' in rconf:
        rconf['config_file'] = os.path.join(os.path.dirname(sys.argv[0]), "conf/gsyncd.conf")
    gcnf = GConffile(rconf['config_file'], canon_peers, defaults.__dict__, opts.__dict__, namedict)

    if confdata:
        opt_ok = norm(confdata.opt) in tunables + [None]
        if confdata.op == 'check':
            if opt_ok:
                sys.exit(0)
            else:
                sys.exit(1)
        elif not opt_ok:
            raise GsyncdError("not a valid option: " + confdata.opt)
        if confdata.op == 'get':
            gcnf.get(confdata.opt)
        elif confdata.op == 'set':
            gcnf.set(confdata.opt, confdata.val, confdata.rx)
        elif confdata.op == 'del':
            gcnf.delete(confdata.opt, confdata.rx)
        return

    gconf.__dict__.update(defaults.__dict__)
    gcnf.update_to(gconf.__dict__)
    gconf.__dict__.update(opts.__dict__)
    gconf.configinterface = gcnf

    ffd = rconf.get('feedback_fd')
    if ffd:
        fcntl.fcntl(ffd, fcntl.F_SETFD, fcntl.FD_CLOEXEC)

    #normalize loglevel
    lvl0 = gconf.log_level
    if isinstance(lvl0, str):
        lvl1 = lvl0.upper()
        lvl2 = logging.getLevelName(lvl1)
        # I have _never_ _ever_ seen such an utterly braindead
        # error condition
        if lvl2 == "Level " + lvl1:
            raise GsyncdError('cannot recognize log level "%s"' % lvl0)
        gconf.log_level = lvl2

    go_daemon = rconf['go_daemon']
    be_monitor = rconf.get('monitor')

    if not be_monitor and isinstance(remote, resource.SSH) and \
       go_daemon == 'should':
        go_daemon = 'postconn'
        log_file = None
    else:
        log_file = gconf.log_file
    if be_monitor:
        label = 'monitor'
    elif remote:
        #master
        label = ''
    else:
        label = 'slave'
    startup(go_daemon=go_daemon, log_file=log_file, label=label)

    if be_monitor:
        return monitor()

    logging.info("syncing: %s" % " -> ".join(peers))
    if remote:
        go_daemon = remote.connect_remote(go_daemon=go_daemon)
        if go_daemon:
            startup(go_daemon=go_daemon, log_file=gconf.log_file)
            # complete remote connection in child
            remote.connect_remote(go_daemon='done')
    local.connect()
    if ffd:
        os.close(ffd)
    local.service_loop(*[r for r in [remote] if r])
Exemple #6
0
def main_i():
    rconf = {'go_daemon': 'should'}

    def store_abs(opt, optstr, val, parser):
        setattr(parser.values, opt.dest, os.path.abspath(val))
    def store_local(opt, optstr, val, parser):
        rconf[opt.dest] = val
    def store_local_curry(val):
        return lambda o, oo, vx, p: store_local(o, oo, val, p)

    op = OptionParser(usage="%prog [options...] <master> <slave>", version="%prog 0.0.1")
    op.add_option('--gluster-command',     metavar='CMD',   default='glusterfs')
    op.add_option('--gluster-log-file',    metavar='LOGF',  default=os.devnull, type=str, action='callback', callback=store_abs)
    op.add_option('--gluster-log-level',   metavar='LVL')
    op.add_option('-p', '--pid-file',      metavar='PIDF',  type=str, action='callback', callback=store_abs)
    op.add_option('-l', '--log-file',      metavar='LOGF',  type=str, action='callback', callback=store_abs)
    op.add_option('-L', '--log-level',     metavar='LVL')
    op.add_option('-r', '--remote-gsyncd', metavar='CMD',   default=os.path.abspath(sys.argv[0]))
    op.add_option('-s', '--ssh-command',   metavar='CMD',   default='ssh')
    op.add_option('--rsync-command',       metavar='CMD',   default='rsync')
    op.add_option('--rsync-extra',         metavar='ARGS',  default='-sS', help=SUPPRESS_HELP)
    op.add_option('--timeout',             metavar='SEC',   type=int, default=120)
    op.add_option('--sync-jobs',           metavar='N',     type=int, default=3)
    op.add_option('--turns',               metavar='N',     type=int, default=0, help=SUPPRESS_HELP)

    op.add_option('-c', '--config-file',   metavar='CONF',  type=str, action='callback', callback=store_local)
    # duh. need to specify dest or value will be mapped to None :S
    op.add_option('--listen', dest='listen', help=SUPPRESS_HELP,      action='callback', callback=store_local_curry(True))
    op.add_option('-N', '--no-daemon', dest="go_daemon",    action='callback', callback=store_local_curry('dont'))
    op.add_option('--debug', dest="go_daemon",              action='callback', callback=lambda *a: (store_local_curry('dont')(*a),
                                                                                                    setattr(a[-1].values, 'log_file', '-'),
                                                                                                    setattr(a[-1].values, 'log_level', 'DEBUG'))),
    op.add_option('--config-get',           metavar='OPT',  type=str, dest='config', action='callback', callback=store_local)
    op.add_option('--config-get-all', dest='config', action='callback', callback=store_local_curry(True))
    op.add_option('--config-set',           metavar='OPT VAL', type=str, nargs=2, dest='config', action='callback',
                   callback=lambda o, oo, vx, p: store_local(o, oo, (vx[0], vx[1], False), p))
    op.add_option('--config-set-rx',        metavar='OPT VAL', type=str, nargs=2, dest='config', action='callback',
                   callback=lambda o, oo, vx, p: store_local(o, oo, (vx[0], vx[1], True), p))
    op.add_option('--config-del',           metavar='OPT',  type=str, dest='config', action='callback', callback=lambda o, oo, vx, p:
                                                                                                                    store_local(o, oo, (vx, False, False), p))
    op.add_option('--config-del-rx',        metavar='OPT',  type=str, dest='config', action='callback', callback=lambda o, oo, vx, p:
                                                                                                                    store_local(o, oo, (vx, False, True), p))
    op.add_option('--canonicalize-url',        dest='do_canon', action='callback', callback=store_local_curry('raw'))
    op.add_option('--canonicalize-escape-url', dest='do_canon', action='callback', callback=store_local_curry('escaped'))

    # precedence for sources of values: 1) commandline, 2) cfg file, 3) defaults
    # -- for this to work out we need to tell apart defaults from explicitly set
    # options... so churn out the defaults here and call the parser with virgin
    # values container.
    defaults = op.get_default_values()
    opts, args = op.parse_args(values=optparse.Values())
    confdata = rconf.get('config')
    if not (len(args) == 2 or \
            (len(args) == 1 and rconf.get('listen')) or \
            (len(args) <= 2 and confdata) or \
            rconf.get('do_canon')):
        sys.stderr.write("error: incorrect number of arguments\n\n")
        sys.stderr.write(op.get_usage() + "\n")
        sys.exit(1)

    if confdata and isinstance(confdata, tuple) and confdata[2]:
        # peers are regexen, don't try to parse them
        canon_peers = args
    else:
        rscs = [resource.parse_url(u) for u in args]
        dc = rconf.get('do_canon')
        if dc:
            for r in rscs:
                print(r.get_url(canonical=True, escaped=(dc=='escaped')))
            return
        local = remote = None
        if rscs:
          local = rscs[0]
          if len(rscs) > 1:
              remote = rscs[1]
          if not local.can_connect_to(remote):
              raise RuntimeError("%s cannot work with %s" % (local.path, remote and remote.path))
        pa = ([], [])
        canon = [False, True]
        for x in (local, remote):
            if x:
                for i in range(2):
                    pa[i].append(x.get_url(canonical=canon[i]))
        peers, canon_peers = pa
    if not 'config_file' in rconf:
        rconf['config_file'] = os.path.join(os.path.dirname(sys.argv[0]), "conf/gsyncd.conf")
    gcnf = GConffile(rconf['config_file'], canon_peers)

    if confdata:
        if isinstance(confdata, tuple):
            if confdata[1]:
                gcnf.set(*confdata)
            else:
                gcnf.delete(confdata[0], confdata[1])
        else:
            if confdata == True:
                confdata = None
            gcnf.get(confdata)
        return

    gconf.__dict__.update(defaults.__dict__)
    gcnf.update_to(gconf.__dict__)
    gconf.__dict__.update(opts.__dict__)

    #normalize loglevel
    lvl0 = gconf.log_level
    if isinstance(lvl0, str):
        lvl1 = lvl0.upper()
        lvl2 = logging.getLevelName(lvl1)
        # I have _never_ _ever_ seen such an utterly braindead
        # error condition
        if lvl2 == "Level " + lvl1:
            raise RuntimeError('cannot recognize log level "%s"' % lvl0)
        gconf.log_level = lvl2

    go_daemon = rconf['go_daemon']

    if isinstance(remote, resource.SSH) and go_daemon == 'should':
        go_daemon = 'postconn'
        log_file = None
    else:
        log_file = gconf.log_file
    startup(go_daemon=go_daemon, log_file=log_file, slave=(not remote))

    logging.info("syncing: %s" % " -> ".join(peers))
    if remote:
        go_daemon = remote.connect_remote(go_daemon=go_daemon)
        if go_daemon:
            startup(go_daemon=go_daemon, log_file=gconf.log_file)
            # complete remote connection in child
            remote.connect_remote(go_daemon='done')
    local.connect()
    local.service_loop(*[r for r in [remote] if r])

    logging.info("exiting.")
Exemple #7
0
def main_i():
    rconf = {'go_daemon': 'should'}

    def store_abs(opt, optstr, val, parser):
        if val and val != '-':
            val = os.path.abspath(val)
        setattr(parser.values, opt.dest, val)

    def store_local(opt, optstr, val, parser):
        rconf[opt.dest] = val

    def store_local_curry(val):
        return lambda o, oo, vx, p: store_local(o, oo, val, p)

    def store_local_obj(op, dmake):
        return lambda o, oo, vx, p: store_local(
            o, oo, FreeObject(op=op, **dmake(vx)), p)

    op = OptionParser(usage="%prog [options...] <master> <slave>",
                      version="%prog 0.0.1")
    op.add_option('--gluster-command', metavar='CMD', default='glusterfs')
    op.add_option('--gluster-log-file',
                  metavar='LOGF',
                  default=os.devnull,
                  type=str,
                  action='callback',
                  callback=store_abs)
    op.add_option('--gluster-log-level', metavar='LVL')
    op.add_option('-p',
                  '--pid-file',
                  metavar='PIDF',
                  type=str,
                  action='callback',
                  callback=store_abs)
    op.add_option('-l',
                  '--log-file',
                  metavar='LOGF',
                  type=str,
                  action='callback',
                  callback=store_abs)
    op.add_option('--state-file',
                  metavar='STATF',
                  type=str,
                  action='callback',
                  callback=store_abs)
    op.add_option('-L', '--log-level', metavar='LVL')
    op.add_option('-r',
                  '--remote-gsyncd',
                  metavar='CMD',
                  default=os.path.abspath(sys.argv[0]))
    op.add_option('--volume-id', metavar='UUID')
    op.add_option('--session-owner', metavar='ID')
    op.add_option('-s', '--ssh-command', metavar='CMD', default='ssh')
    op.add_option('--rsync-command', metavar='CMD', default='rsync')
    op.add_option('--rsync-extra',
                  metavar='ARGS',
                  default='-sS',
                  help=SUPPRESS_HELP)
    op.add_option('--timeout', metavar='SEC', type=int, default=120)
    op.add_option('--sync-jobs', metavar='N', type=int, default=3)
    op.add_option('--turns',
                  metavar='N',
                  type=int,
                  default=0,
                  help=SUPPRESS_HELP)

    op.add_option('-c',
                  '--config-file',
                  metavar='CONF',
                  type=str,
                  action='callback',
                  callback=store_local)
    # duh. need to specify dest or value will be mapped to None :S
    op.add_option('--monitor',
                  dest='monitor',
                  action='callback',
                  callback=store_local_curry(True))
    op.add_option('--feedback-fd',
                  dest='feedback_fd',
                  type=int,
                  help=SUPPRESS_HELP,
                  action='callback',
                  callback=store_local)
    op.add_option('--listen',
                  dest='listen',
                  help=SUPPRESS_HELP,
                  action='callback',
                  callback=store_local_curry(True))
    op.add_option('-N',
                  '--no-daemon',
                  dest="go_daemon",
                  action='callback',
                  callback=store_local_curry('dont'))
    op.add_option('--debug',
                  dest="go_daemon",
                  action='callback',
                  callback=lambda *a:
                  (store_local_curry('dont')
                   (*a), setattr(a[-1].values, 'log_file', '-'),
                   setattr(a[-1].values, 'log_level', 'DEBUG'))),

    for a in ('check', 'get'):
        op.add_option('--config-' + a,
                      metavar='OPT',
                      type=str,
                      dest='config',
                      action='callback',
                      callback=store_local_obj(a, lambda vx: {'opt': vx}))
    op.add_option('--config-get-all',
                  dest='config',
                  action='callback',
                  callback=store_local_obj('get', lambda vx: {'opt': None}))
    for m in ('', '-rx'):
        # call this code 'Pythonic' eh?
        # have to define a one-shot local function to be able to inject (a value depending on the)
        # iteration variable into the inner lambda
        def conf_mod_opt_regex_variant(rx):
            op.add_option('--config-set' + m,
                          metavar='OPT VAL',
                          type=str,
                          nargs=2,
                          dest='config',
                          action='callback',
                          callback=store_local_obj(
                              'set', lambda vx: {
                                  'opt': vx[0],
                                  'val': vx[1],
                                  'rx': rx
                              }))
            op.add_option('--config-del' + m,
                          metavar='OPT',
                          type=str,
                          dest='config',
                          action='callback',
                          callback=store_local_obj(
                              'del', lambda vx: {
                                  'opt': vx,
                                  'rx': rx
                              }))

        conf_mod_opt_regex_variant(not not m)

    op.add_option('--normalize-url',
                  dest='url_print',
                  action='callback',
                  callback=store_local_curry('normal'))
    op.add_option('--canonicalize-url',
                  dest='url_print',
                  action='callback',
                  callback=store_local_curry('canon'))
    op.add_option('--canonicalize-escape-url',
                  dest='url_print',
                  action='callback',
                  callback=store_local_curry('canon_esc'))

    tunables = [
        norm(o.get_opt_string()[2:]) for o in op.option_list
        if o.callback in (store_abs,
                          None) and o.get_opt_string() not in ('--version',
                                                               '--help')
    ]

    # precedence for sources of values: 1) commandline, 2) cfg file, 3) defaults
    # -- for this to work out we need to tell apart defaults from explicitly set
    # options... so churn out the defaults here and call the parser with virgin
    # values container.
    defaults = op.get_default_values()
    opts, args = op.parse_args(values=optparse.Values())
    confdata = rconf.get('config')
    if not (len(args) == 2 or \
            (len(args) == 1 and rconf.get('listen')) or \
            (len(args) <= 2 and confdata) or \
            rconf.get('url_print')):
        sys.stderr.write("error: incorrect number of arguments\n\n")
        sys.stderr.write(op.get_usage() + "\n")
        sys.exit(1)

    if getattr(confdata, 'rx', None):
        # peers are regexen, don't try to parse them
        canon_peers = args
        namedict = {}
    else:
        rscs = [resource.parse_url(u) for u in args]
        dc = rconf.get('url_print')
        if dc:
            for r in rscs:
                print(
                    r.get_url(
                        **{
                            'normal': {},
                            'canon': {
                                'canonical': True
                            },
                            'canon_esc': {
                                'canonical': True,
                                'escaped': True
                            }
                        }[dc]))
            return
        local = remote = None
        if rscs:
            local = rscs[0]
            if len(rscs) > 1:
                remote = rscs[1]
            if not local.can_connect_to(remote):
                raise RuntimeError("%s cannot work with %s" %
                                   (local.path, remote and remote.path))
        pa = ([], [], [])
        urlprms = ({}, {
            'canonical': True
        }, {
            'canonical': True,
            'escaped': True
        })
        for x in rscs:
            for i in range(len(pa)):
                pa[i].append(x.get_url(**urlprms[i]))
        peers, canon_peers, canon_esc_peers = pa
        # creating the namedict, a dict representing various ways of referring to / repreenting
        # peers to be fillable in config templates
        mods = (lambda x: x, lambda x: x[0].upper() + x[1:],
                lambda x: 'e' + x[0].upper() + x[1:])
        if remote:
            rmap = {local: ('local', 'master'), remote: ('remote', 'slave')}
        else:
            rmap = {local: ('local', 'slave')}
        namedict = {}
        for i in range(len(rscs)):
            x = rscs[i]
            for name in rmap[x]:
                for j in range(3):
                    namedict[mods[j](name)] = pa[j][i]
                if x.scheme == 'gluster':
                    namedict[name + 'vol'] = x.volume
    if not 'config_file' in rconf:
        rconf['config_file'] = os.path.join(os.path.dirname(sys.argv[0]),
                                            "conf/gsyncd.conf")
    gcnf = GConffile(rconf['config_file'], canon_peers, defaults.__dict__,
                     opts.__dict__, namedict)

    if confdata:
        opt_ok = norm(confdata.opt) in tunables + [None]
        if confdata.op == 'check':
            if opt_ok:
                sys.exit(0)
            else:
                sys.exit(1)
        elif not opt_ok:
            raise RuntimeError("not a valid option: " + confdata.opt)
        if confdata.op == 'get':
            gcnf.get(confdata.opt)
        elif confdata.op == 'set':
            gcnf.set(confdata.opt, confdata.val, confdata.rx)
        elif confdata.op == 'del':
            gcnf.delete(confdata.opt, confdata.rx)
        return

    gconf.__dict__.update(defaults.__dict__)
    gcnf.update_to(gconf.__dict__)
    gconf.__dict__.update(opts.__dict__)
    gconf.configinterface = gcnf

    ffd = rconf.get('feedback_fd')
    if ffd:
        fcntl.fcntl(ffd, fcntl.F_SETFD, fcntl.FD_CLOEXEC)

    #normalize loglevel
    lvl0 = gconf.log_level
    if isinstance(lvl0, str):
        lvl1 = lvl0.upper()
        lvl2 = logging.getLevelName(lvl1)
        # I have _never_ _ever_ seen such an utterly braindead
        # error condition
        if lvl2 == "Level " + lvl1:
            raise RuntimeError('cannot recognize log level "%s"' % lvl0)
        gconf.log_level = lvl2

    go_daemon = rconf['go_daemon']
    be_monitor = rconf.get('monitor')

    if not be_monitor and isinstance(remote, resource.SSH) and \
       go_daemon == 'should':
        go_daemon = 'postconn'
        log_file = None
    else:
        log_file = gconf.log_file
    if be_monitor:
        label = 'monitor'
    elif remote:
        #master
        label = ''
    else:
        label = 'slave'
    startup(go_daemon=go_daemon, log_file=log_file, label=label)

    if be_monitor:
        return monitor()

    logging.info("syncing: %s" % " -> ".join(peers))
    if remote:
        go_daemon = remote.connect_remote(go_daemon=go_daemon)
        if go_daemon:
            startup(go_daemon=go_daemon, log_file=gconf.log_file)
            # complete remote connection in child
            remote.connect_remote(go_daemon='done')
    local.connect()
    if ffd:
        os.close(ffd)
    local.service_loop(*[r for r in [remote] if r])

    logging.info("exiting.")