neingeist/check_kernel
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Support CentOS 5 and its ancient Python version

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This commit is contained in:
Mike Gerber 2015-05-24 21:27:43 +02:00
parent fc837dac74
commit 68f7bfb274
1 changed files with 19 additions and 9 deletions
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26
check_kernel
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@ -1,5 +1,5 @@
#!/usr/bin/python #!/usr/bin/python
from __future__ import division, print_function from __future__ import division
import posixpath import posixpath
import re import re
import subprocess import subprocess
@ -39,8 +39,9 @@ class Version(object):
def proc_version(): def proc_version():
with open('/proc/version', 'r') as v: v = open('/proc/version', 'r')
proc_version = v.next() proc_version = v.next()
v.close()
return proc_version return proc_version
@ -64,16 +65,25 @@ def is_debian():
def is_fedora(): def is_fedora():
return posixpath.exists('/etc/fedora-release') return posixpath.exists('/etc/fedora-release')
def is_redhat():
return posixpath.exists('/etc/redhat-release')
def installed_kernel_versions(): def installed_kernel_versions():
if is_debian(): if is_debian():
return installed_kernel_versions_debian() return installed_kernel_versions_debian()
if is_fedora(): if is_fedora() or is_redhat():
return installed_kernel_versions_fedora() return installed_kernel_versions_fedora()
return [None]
def check_output(cmd):
"""Emulate subprocess.check_output for ancient Python versions"""
return subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate()[0]
def installed_kernel_versions_debian(): def installed_kernel_versions_debian():
dpkg_out = subprocess.check_output( dpkg_out = check_output(
['dpkg-query', '--show', '--showformat', '${Package} ${Version}\n', 'linux-image*']) ['dpkg-query', '--show', '--showformat', '${Package} ${Version}\n', 'linux-image*'])
dpkg_out = dpkg_out.strip() dpkg_out = dpkg_out.strip()
@ -85,7 +95,7 @@ def installed_kernel_versions_debian():
def installed_kernel_versions_fedora(): def installed_kernel_versions_fedora():
rpm_out = subprocess.check_output( rpm_out = check_output(
['rpm', '--queryformat=%{VERSION}-%{RELEASE}\n', '-q', 'kernel']) ['rpm', '--queryformat=%{VERSION}-%{RELEASE}\n', '-q', 'kernel'])
rpm_out = rpm_out.strip() rpm_out = rpm_out.strip()
@ -117,11 +127,11 @@ def main():
installed = installed_kernel_version() installed = installed_kernel_version()
if running == installed: if running == installed:
print('KERNEL OK - running version {}'.format(running)) print('KERNEL OK - running version %s' % running)
sys.exit(0) sys.exit(0)
else: else:
print('KERNEL WARNING - running version {}, installed: {}' print('KERNEL WARNING - running version %s, installed: %s' % \
.format(running, installed)) (running, installed))
sys.exit(1) sys.exit(1)