def start(self, name, program, *args, **kargs):
tracedir = kargs.get("trace_dir")
appdir = kargs.get("app_dir")
pidfile = joinpths(tracedir, name + ".pid")
stderr = joinpths(tracedir, name + ".stderr")
stdout = joinpths(tracedir, name + ".stdout")
tracefn = Trace.trace_fn(tracedir, name)
tracefn = Trace.touch_trace(tracedir, name)
runtrace = Trace.Trace(tracefn)
runtrace.trace(RUN, RUN_TYPE)
runtrace.trace(PID_FN, pidfile)
runtrace.trace(STDERR_FN, stderr)
runtrace.trace(STDOUT_FN, stdout)
#fork to get daemon out
pid = os.fork()
if(pid == 0):
os.setsid()
pid = os.fork()
#fork to get daemon out - this time under init control
#and now fully detached (no shell possible)
if(pid == 0):
#move to where application should be
os.chdir(appdir)
#close other fds
limits = resource.getrlimit(resource.RLIMIT_NOFILE)
mkfd = limits[1]
if(mkfd == resource.RLIM_INFINITY):
mkfd = MAXFD
for fd in range(0, mkfd):
try:
os.close(fd)
except OSError:
#not open, thats ok
pass
#now adjust stderr and stdout
stdoh = open(stdout, "w")
stdeh = open(stderr, "w")
os.dup2(stdoh.fileno(), sys.stdout.fileno())
os.dup2(stdeh.fileno(), sys.stderr.fileno())
#now exec...
#the arguments to the child process should
#start with the name of the command being run
actualargs = [program] + list(args)
os.execlp(program, *actualargs)
else:
#write out the child pid
contents = str(pid) + "\n"
write_file(pidfile, contents)
#not exit or sys.exit, this is recommended
#since it will do the right cleanups that we want
#not calling any atexit functions, which would
#be bad right now
os._exit(0)
else:
return tracefn
def _python_install(self):
pips = get_pip_list(self.distro, self.component_name)
#install any need pip items
if(len(pips)):
Pip.install(pips)
for name in pips.keys():
self.tracewriter.pip_install(name, pips.get(name))
#do the actual python install
dirsmade = mkdirslist(self.tracedir)
self.tracewriter.dir_made(*dirsmade)
recordwhere = touch_trace(self.tracedir, PY_TRACE)
self.tracewriter.py_install(recordwhere)
(sysout, stderr) = execute(*PY_INSTALL, cwd=self.appdir, run_as_root=True)
write_file(recordwhere, sysout)
def _python_install(self):
pips = get_pip_list(self.distro, self.component_name)
#install any need pip items
if (len(pips)):
Pip.install(pips)
for name in pips.keys():
self.tracewriter.pip_install(name, pips.get(name))
#do the actual python install
dirsmade = mkdirslist(self.tracedir)
self.tracewriter.dir_made(*dirsmade)
recordwhere = touch_trace(self.tracedir, PY_TRACE)
self.tracewriter.py_install(recordwhere)
(sysout, stderr) = execute(*PY_INSTALL,
cwd=self.appdir,
run_as_root=True)
write_file(recordwhere, sysout)
def configure(self):
dirsmade = mkdirslist(self.cfgdir)
self.tracewriter.dir_made(*dirsmade)
configs = self._get_config_files()
if(configs and len(configs)):
for fn in configs:
parameters = self._get_param_map(fn)
sourcefn = joinpths(STACK_CONFIG_DIR, self.component_name, fn)
tgtfn = joinpths(self.cfgdir, fn)
LOG.info("Configuring template file %s" % (sourcefn))
contents = load_file(sourcefn)
LOG.info("Replacing parameters in file %s" % (sourcefn))
LOG.debug("Replacements = %s" % (parameters))
contents = param_replace(contents, parameters)
LOG.debug("Applying side-effects of param replacement for template %s" % (sourcefn))
contents = self._config_adjust(contents, fn)
LOG.info("Writing configuration file %s" % (tgtfn))
write_file(tgtfn, contents)
#this trace is used to remove the files configured
self.tracewriter.cfg_write(tgtfn)
return self.tracedir
def configure(self):
dirsmade = mkdirslist(self.cfgdir)
self.tracewriter.dir_made(*dirsmade)
configs = self._get_config_files()
if (configs and len(configs)):
for fn in configs:
parameters = self._get_param_map(fn)
sourcefn = joinpths(STACK_CONFIG_DIR, self.component_name, fn)
tgtfn = joinpths(self.cfgdir, fn)
LOG.info("Configuring template file %s" % (sourcefn))
contents = load_file(sourcefn)
LOG.info("Replacing parameters in file %s" % (sourcefn))
LOG.debug("Replacements = %s" % (parameters))
contents = param_replace(contents, parameters)
LOG.debug(
"Applying side-effects of param replacement for template %s"
% (sourcefn))
contents = self._config_adjust(contents, fn)
LOG.info("Writing configuration file %s" % (tgtfn))
write_file(tgtfn, contents)
#this trace is used to remove the files configured
self.tracewriter.cfg_write(tgtfn)
return self.tracedir
