def stop(self, name, *args, **kargs):
with sh.Rooted(kargs.get("run_as_root", True)):
trace_dir = kargs.get("trace_dir")
if not trace_dir or not sh.isdir(trace_dir):
msg = "No trace directory found from which to stop %s" % (name)
raise excp.StopException(msg)
fn_name = FORK_TEMPL % (name)
(pid_file, stderr_fn, stdout_fn) = self._form_file_names(trace_dir, fn_name)
trace_fn = tr.trace_fn(trace_dir, fn_name)
if sh.isfile(pid_file) and sh.isfile(trace_fn):
pid = int(sh.load_file(pid_file).strip())
(killed, attempts) = self._stop_pid(pid)
#trash the files
if killed:
LOG.debug("Killed pid %s after %s attempts" % (pid, attempts))
LOG.debug("Removing pid file %s" % (pid_file))
sh.unlink(pid_file)
LOG.debug("Removing stderr file %s" % (stderr_fn))
sh.unlink(stderr_fn)
LOG.debug("Removing stdout file %s" % (stdout_fn))
sh.unlink(stdout_fn)
LOG.debug("Removing %s trace file %s" % (name, trace_fn))
sh.unlink(trace_fn)
else:
msg = "Could not stop %s after %s attempts" % (name, attempts)
raise excp.StopException(msg)
else:
msg = "No pid or trace file could be found to stop %s in directory %s" % (name, trace_dir)
raise excp.StopException(msg)
def stop(self, app_name):
with sh.Rooted(ROOT_GO):
if not sh.isdir(self.trace_dir):
msg = "No trace directory found from which to stop %s" % (app_name)
raise excp.StopException(msg)
fn_name = FORK_TEMPL % (app_name)
(pid_file, stderr_fn, stdout_fn) = self._form_file_names(fn_name)
trace_fn = tr.trace_fn(self.trace_dir, fn_name)
if sh.isfile(pid_file) and sh.isfile(trace_fn):
pid = int(sh.load_file(pid_file).strip())
(killed, attempts) = self._stop_pid(pid)
# Trash the files if it worked
if killed:
LOG.debug("Killed pid %s after %s attempts" % (pid, attempts))
LOG.debug("Removing pid file %s" % (pid_file))
sh.unlink(pid_file)
LOG.debug("Removing stderr file %s" % (stderr_fn))
sh.unlink(stderr_fn)
LOG.debug("Removing stdout file %s" % (stdout_fn))
sh.unlink(stdout_fn)
LOG.debug("Removing %s trace file %s" % (app_name, trace_fn))
sh.unlink(trace_fn)
else:
msg = "Could not stop %s after %s attempts" % (app_name, attempts)
raise excp.StopException(msg)
else:
msg = "No pid or trace file could be found to stop %s in directory %s" % (app_name, self.trace_dir)
raise excp.StopException(msg)
def _begin_start(self, name, program, args):
run_trace = tr.TraceWriter(
tr.trace_fn(self.trace_dir, SCREEN_TEMPL % (name)))
run_trace.trace(TYPE, RUN_TYPE)
run_trace.trace(NAME, name)
run_trace.trace(ARGS, json.dumps(args))
full_cmd = [program] + list(args)
session_name = self._get_session()
inited_screen = False
if session_name is None:
inited_screen = True
self._do_screen_init()
session_name = self._get_session()
if session_name is None:
msg = "After initializing screen with session named [%s], no screen session with that name was found!" % (
SESSION_NAME)
raise excp.StartException(msg)
run_trace.trace(SESSION_ID, session_name)
if inited_screen or not sh.isfile(SCREEN_RC):
rc_gen = ScreenRcGenerator(self)
rc_contents = rc_gen.create(session_name, self._get_env())
out_fn = sh.abspth(SCREEN_RC)
LOG.info("Writing your created screen rc file to [%s]" % (out_fn))
sh.write_file(out_fn, rc_contents)
self._do_start(session_name, name, full_cmd)
return run_trace.filename()
def _pre_run(self, instances, component_order):
if not sh.isdir(self.directory):
sh.mkdir(self.directory)
if self.rc_file:
try:
LOG.info("Attempting to load rc file at [%s] which has your environment settings." % (self.rc_file))
am_loaded = env_rc.RcReader().load(self.rc_file)
LOG.info("Loaded [%s] settings from rc file [%s]" % (am_loaded, self.rc_file))
except IOError:
LOG.warn('Error reading rc file located at [%s]. Skipping loading it.' % (self.rc_file))
LOG.info("Verifying that the components are ready to rock-n-roll.")
for component in component_order:
inst = instances[component]
inst.verify()
LOG.info("Warming up your component configurations (ie so you won't be prompted later)")
for component in component_order:
inst = instances[component]
inst.warm_configs()
if self.gen_rc and self.rc_file:
writer = env_rc.RcWriter(self.cfg)
if not sh.isfile(self.rc_file):
LOG.info("Generating a file at [%s] that will contain your environment settings." % (self.rc_file))
writer.write(self.rc_file)
else:
LOG.info("Updating a file at [%s] that contains your environment settings." % (self.rc_file))
am_upd = writer.update(self.rc_file)
LOG.info("Updated [%s] settings in rc file [%s]" % (am_upd, self.rc_file))
def _pre_run(action_name, root_dir, pkg_manager, config, component_order, instances):
loaded_env = False
rc_fn = _RC_FILE
try:
if sh.isfile(rc_fn):
LOG.info("Attempting to load rc file at [%s] which has your environment settings." % (rc_fn))
am_loaded = env_rc.load_local_rc(rc_fn)
loaded_env = True
LOG.info("Loaded [%s] settings from rc file [%s]" % (am_loaded, rc_fn))
except IOError:
LOG.warn('Error reading rc file located at [%s]. Skipping loading it.' % (rc_fn))
if action_name == settings.INSTALL:
if root_dir:
sh.mkdir(root_dir)
LOG.info("Verifying that the components are ready to rock-n-roll.")
all_instances = instances[0]
prerequisite_instances = instances[1]
for component in component_order:
base_inst = all_instances.get(component)
if base_inst:
base_inst.verify()
pre_inst = prerequisite_instances.get(component)
if pre_inst:
pre_inst.verify()
LOG.info("Warming up your component configurations (ie so you won't be prompted later)")
for component in component_order:
base_inst = all_instances.get(component)
if base_inst:
base_inst.warm_configs()
pre_inst = prerequisite_instances.get(component)
if pre_inst:
pre_inst.warm_configs()
if action_name in _RC_FILE_MAKE_ACTIONS and not loaded_env:
_gen_localrc(config, rc_fn)
def _begin_start(self, name, program, args):
fn_name = SCREEN_TEMPL % (name)
tracefn = tr.touch_trace(self.trace_dir, fn_name)
runtrace = tr.Trace(tracefn)
runtrace.trace(TYPE, RUN_TYPE)
runtrace.trace(NAME, name)
runtrace.trace(ARGS, json.dumps(args))
full_cmd = [program] + list(args)
session_name = self._get_session()
inited_screen = False
if session_name is None:
inited_screen = True
self._do_screen_init()
session_name = self._get_session()
if session_name is None:
msg = "After initializing screen with session named [%s], no screen session with that name was found!" % (SESSION_NAME)
raise excp.StartException(msg)
runtrace.trace(SESSION_ID, session_name)
if inited_screen or not sh.isfile(SCREEN_RC):
rc_gen = ScreenRcGenerator(self)
rc_contents = rc_gen.create(session_name, self._get_env())
out_fn = sh.abspth(SCREEN_RC)
LOG.info("Writing your created screen rc file to [%s]" % (out_fn))
sh.write_file(out_fn, rc_contents)
self._do_start(session_name, name, full_cmd)
return tracefn
def _write_rc_file(self, root_dir):
writer = env_rc.RcWriter(self.cfg, self.pw_gen, root_dir)
if not sh.isfile(settings.OSRC_FN):
LOG.info("Generating a file at %r that will contain your environment settings.", settings.OSRC_FN)
writer.write(settings.OSRC_FN)
else:
LOG.info("Updating a file at %r that contains your environment settings.", settings.OSRC_FN)
am_upd = writer.update(settings.OSRC_FN)
LOG.info("Updated %s settings in rc file %r", am_upd, settings.OSRC_FN)
def _write_rc_file(self, root_dir):
writer = env_rc.RcWriter(self.cfg, self.pw_gen, root_dir)
if not sh.isfile(settings.OSRC_FN):
LOG.info("Generating a file at [%s] that will contain your environment settings." % (settings.OSRC_FN))
writer.write(settings.OSRC_FN)
else:
LOG.info("Updating a file at [%s] that contains your environment settings." % (settings.OSRC_FN))
am_upd = writer.update(settings.OSRC_FN)
LOG.info("Updated [%s] settings in rc file [%s]" % (am_upd, settings.OSRC_FN))
def _clean_it(self):
# These environment additions are important
# in that they eventually affect how this script runs
env = dict()
env['ENABLED_SERVICES'] = ",".join(self.desired_subsystems)
env['BIN_DIR'] = self.bin_dir
env['VOLUME_NAME_PREFIX'] = self.cfg.getdefaulted('nova', 'volume_name_prefix', DEF_VOL_PREFIX)
cleaner_fn = sh.joinpths(self.bin_dir, CLEANER_DATA_CONF)
if sh.isfile(cleaner_fn):
LOG.info("Cleaning up your system by running nova cleaner script [%s]." % (cleaner_fn))
cmd = CLEANER_CMD_ROOT + [cleaner_fn]
sh.execute(*cmd, run_as_root=True, env_overrides=env)
def parse_fn(fn):
if not sh.isfile(fn):
msg = "No trace found at filename %s" % (fn)
raise excp.NoTraceException(msg)
contents = sh.load_file(fn)
lines = contents.splitlines()
accum = list()
for line in lines:
ep = split_line(line)
if ep is None:
continue
accum.append(tuple(ep))
return accum
def _parse(self):
fn = self.trace_fn
if not sh.isfile(fn):
msg = "No trace found at filename %s" % (fn)
raise excp.NoTraceException(msg)
contents = sh.load_file(fn)
lines = contents.splitlines()
accum = list()
for line in lines:
ep = self._split_line(line)
if ep is None:
continue
accum.append(tuple(ep))
return accum
def _clean_it(self):
# These environment additions are important
# in that they eventually affect how this script runs
env = dict()
env['ENABLED_SERVICES'] = ",".join(self.desired_subsystems)
env['BIN_DIR'] = self.bin_dir
env['VOLUME_NAME_PREFIX'] = self.cfg.getdefaulted(
'nova', 'volume_name_prefix', DEF_VOL_PREFIX)
cleaner_fn = sh.joinpths(self.bin_dir, CLEANER_DATA_CONF)
if sh.isfile(cleaner_fn):
LOG.info(
"Cleaning up your system by running nova cleaner script %r" %
(cleaner_fn))
cmd = CLEANER_CMD_ROOT + [cleaner_fn]
sh.execute(*cmd, run_as_root=True, env_overrides=env)
def post_start(self):
tgt_fn = sh.joinpths(self.bin_dir, MANAGE_DATA_CONF)
if sh.isfile(tgt_fn):
# If its still there, run it
# these environment additions are important
# in that they eventually affect how this script runs
LOG.info("Waiting %s seconds so that keystone can start up before running first time init." % (self.wait_time))
sh.sleep(self.wait_time)
env = dict()
env['ENABLED_SERVICES'] = ",".join(self.instances.keys())
env['BIN_DIR'] = self.bin_dir
setup_cmd = MANAGE_CMD_ROOT + [tgt_fn]
LOG.info("Running (%s) command to initialize keystone." % (" ".join(setup_cmd)))
sh.execute(*setup_cmd, env_overrides=env, run_as_root=False)
LOG.debug("Removing (%s) file since we successfully initialized keystone." % (tgt_fn))
sh.unlink(tgt_fn)
def _do_upstart_configure(self, app_name, runtime_info):
(app_pth, _, program_args) = runtime_info
# TODO FIXME symlinks won't work. Need to copy the files there.
# https://bugs.launchpad.net/upstart/+bug/665022
cfg_fn = sh.joinpths(CONF_ROOT, app_name + CONF_EXT)
if sh.isfile(cfg_fn):
LOG.info("Upstart config file already exists: %s" % (cfg_fn))
return
LOG.debug("Loading upstart template to be used by: %s" % (cfg_fn))
(_, contents) = utils.load_template('general', UPSTART_CONF_TMPL)
params = self._get_upstart_conf_params(app_pth, app_name, *program_args)
adjusted_contents = utils.param_replace(contents, params)
LOG.debug("Generated up start config for %s: %s" % (app_name, adjusted_contents))
with sh.Rooted(True):
sh.write_file(cfg_fn, adjusted_contents)
sh.chmod(cfg_fn, 0666)
def _setup_network_init(self):
tgt_fn = sh.joinpths(self.bindir, NET_INIT_CONF)
if sh.isfile(tgt_fn):
LOG.info("Creating your nova network to be used with instances.")
#still there, run it
#these environment additions are important
#in that they eventually affect how this script runs
if utils.service_enabled(settings.QUANTUM, self.instances, False):
LOG.info("Waiting %s seconds so that quantum can start up before running first time init." % (WAIT_ONLINE_TO))
time.sleep(WAIT_ONLINE_TO)
env = dict()
env['ENABLED_SERVICES'] = ",".join(self.instances.keys())
setup_cmd = NET_INIT_CMD_ROOT + [tgt_fn]
LOG.info("Running (%s) command to initialize nova's network." % (" ".join(setup_cmd)))
sh.execute(*setup_cmd, env_overrides=env, run_as_root=False)
LOG.debug("Removing (%s) file since we successfully initialized nova's network." % (tgt_fn))
sh.unlink(tgt_fn)
def _do_upstart_configure(self, app_name, runtime_info):
(app_pth, _, program_args) = runtime_info
# TODO FIXME symlinks won't work. Need to copy the files there.
# https://bugs.launchpad.net/upstart/+bug/665022
cfg_fn = sh.joinpths(CONF_ROOT, app_name + CONF_EXT)
if sh.isfile(cfg_fn):
LOG.debug("Upstart config file already exists: %s" % (cfg_fn))
return
LOG.debug("Loading upstart template to be used by: %s" % (cfg_fn))
(_, contents) = utils.load_template('general', UPSTART_CONF_TMPL)
params = self._get_upstart_conf_params(app_pth, app_name,
*program_args)
adjusted_contents = utils.param_replace(contents, params)
LOG.debug("Generated up start config for %s: %s" %
(app_name, adjusted_contents))
with sh.Rooted(True):
sh.write_file(cfg_fn, adjusted_contents)
sh.chmod(cfg_fn, 0666)
def post_start(self):
tgt_fn = sh.joinpths(self.bin_dir, MANAGE_DATA_CONF)
if sh.isfile(tgt_fn):
# If its still there, run it
# these environment additions are important
# in that they eventually affect how this script runs
LOG.info(
"Waiting %s seconds so that keystone can start up before running first time init."
% (self.wait_time))
sh.sleep(self.wait_time)
env = dict()
env['ENABLED_SERVICES'] = ",".join(self.instances.keys())
env['BIN_DIR'] = self.bin_dir
setup_cmd = MANAGE_CMD_ROOT + [tgt_fn]
LOG.info("Running (%s) command to initialize keystone." %
(" ".join(setup_cmd)))
sh.execute(*setup_cmd, env_overrides=env, run_as_root=False)
LOG.debug(
"Removing (%s) file since we successfully initialized keystone."
% (tgt_fn))
sh.unlink(tgt_fn)
def _setup_network_init(self):
tgt_fn = sh.joinpths(self.bin_dir, NET_INIT_CONF)
if sh.isfile(tgt_fn):
LOG.info("Creating your nova network to be used with instances.")
# If still there, run it
# these environment additions are important
# in that they eventually affect how this script runs
if 'quantum' in self.options:
LOG.info(
"Waiting %s seconds so that quantum can start up before running first time init."
% (self.wait_time))
sh.sleep(self.wait_time)
env = dict()
env['ENABLED_SERVICES'] = ",".join(self.instances.keys())
setup_cmd = NET_INIT_CMD_ROOT + [tgt_fn]
LOG.info("Running (%s) command to initialize nova's network." %
(" ".join(setup_cmd)))
sh.execute(*setup_cmd, env_overrides=env, run_as_root=False)
LOG.debug(
"Removing (%s) file since we successfully initialized nova's network."
% (tgt_fn))
sh.unlink(tgt_fn)
