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Checks for missing shared library dependencies in the IOU image.

This commit is contained in:
grossmj 2014-04-27 14:51:55 -06:00
parent 32436b0051
commit 6632af9776

View File

@ -21,6 +21,7 @@ order to run an IOU instance.
"""
import os
import re
import socket
import errno
import signal
@ -407,6 +408,23 @@ class IOUDevice(object):
log.error("could not start iouyap: {}\n{}".format(e, iouyap_stdout))
raise IOUError("Could not start iouyap: {}\n{}".format(e, iouyap_stdout))
def _library_check(self):
"""
Checks for missing shared library dependencies in the IOU image.
"""
try:
output = subprocess.check_output(["ldd", self._path])
except subprocess.SubprocessError as e:
log.warn("could not determine the shared library dependencies for {}".format(self._path))
return
p = re.compile("([\.\w]+)\s=>\s+not found")
missing_libs = p.findall(output.decode("utf-8"))
if missing_libs:
raise IOUError("The following shared library dependencies cannot be found for IOU image {}: {}".format(self._path,
", ".join(missing_libs)))
def start(self):
"""
Starts the IOU process.
@ -432,6 +450,8 @@ class IOUDevice(object):
if not os.access(self._path, os.X_OK):
raise IOUError("IOU image '{}' is not executable".format(self._path))
self._library_check()
if not self._iourc or not os.path.isfile(self._iourc):
raise IOUError("A iourc file is necessary to start IOU")