140 lines
4.5 KiB
Python
140 lines
4.5 KiB
Python
"""
|
|
sysinfo.py [host1] [host2] [options]
|
|
|
|
obtain system info from remote machine.
|
|
"""
|
|
|
|
import py
|
|
import sys
|
|
|
|
|
|
parser = py.std.optparse.OptionParser(usage=__doc__)
|
|
parser.add_option("-f", "--sshconfig", action="store", dest="ssh_config", default=None,
|
|
help="use given ssh config file, and add info all contained hosts for getting info")
|
|
parser.add_option("-i", "--ignore", action="store", dest="ignores", default=None,
|
|
help="ignore hosts (useful if the list of hostnames come from a file list)")
|
|
|
|
def parsehosts(path):
|
|
path = py.path.local(path)
|
|
l = []
|
|
rex = py.std.re.compile(r'Host\s*(\S+)')
|
|
for line in path.readlines():
|
|
m = rex.match(line)
|
|
if m is not None:
|
|
sshname, = m.groups()
|
|
l.append(sshname)
|
|
return l
|
|
|
|
class RemoteInfo:
|
|
def __init__(self, gateway):
|
|
self.gw = gateway
|
|
self._cache = {}
|
|
|
|
def exreceive(self, execstring):
|
|
if execstring not in self._cache:
|
|
channel = self.gw.remote_exec(execstring)
|
|
self._cache[execstring] = channel.receive()
|
|
return self._cache[execstring]
|
|
|
|
def getmodattr(self, modpath):
|
|
module = modpath.split(".")[0]
|
|
return self.exreceive("""
|
|
import %s
|
|
channel.send(%s)
|
|
""" %(module, modpath))
|
|
|
|
def islinux(self):
|
|
return self.getmodattr('sys.platform').find("linux") != -1
|
|
|
|
def getfqdn(self):
|
|
return self.exreceive("""
|
|
import socket
|
|
channel.send(socket.getfqdn())
|
|
""")
|
|
|
|
def getmemswap(self):
|
|
if self.islinux():
|
|
return self.exreceive("""
|
|
import commands, re
|
|
out = commands.getoutput("free")
|
|
mem = re.search(r"Mem:\s+(\S*)", out).group(1)
|
|
swap = re.search(r"Swap:\s+(\S*)", out).group(1)
|
|
channel.send((mem, swap))
|
|
""")
|
|
|
|
def getcpuinfo(self):
|
|
if self.islinux():
|
|
return self.exreceive("""
|
|
# a hyperthreaded cpu core only counts as 1, although it
|
|
# is present as 2 in /proc/cpuinfo. Counting it as 2 is
|
|
# misleading because it is *by far* not as efficient as
|
|
# two independent cores.
|
|
cpus = {}
|
|
cpuinfo = {}
|
|
f = open("/proc/cpuinfo")
|
|
lines = f.readlines()
|
|
f.close()
|
|
for line in lines + ['']:
|
|
if line.strip():
|
|
key, value = line.split(":", 1)
|
|
cpuinfo[key.strip()] = value.strip()
|
|
else:
|
|
corekey = (cpuinfo.get("physical id"),
|
|
cpuinfo.get("core id"))
|
|
cpus[corekey] = 1
|
|
numcpus = len(cpus)
|
|
model = cpuinfo.get("model name")
|
|
channel.send((numcpus, model))
|
|
""")
|
|
|
|
def debug(*args):
|
|
print >>sys.stderr, " ".join(map(str, args))
|
|
def error(*args):
|
|
debug("ERROR", args[0] + ":", *args[1:])
|
|
|
|
def getinfo(sshname, ssh_config=None, loginfo=sys.stdout):
|
|
debug("connecting to", sshname)
|
|
try:
|
|
gw = py.execnet.SshGateway(sshname, ssh_config=ssh_config)
|
|
except IOError:
|
|
error("could not get sshagteway", sshname)
|
|
else:
|
|
ri = RemoteInfo(gw)
|
|
#print "%s info:" % sshname
|
|
prefix = sshname.upper() + " "
|
|
print >>loginfo, prefix, "fqdn:", ri.getfqdn()
|
|
for attr in (
|
|
"sys.platform",
|
|
"sys.version_info",
|
|
):
|
|
loginfo.write("%s %s: " %(prefix, attr,))
|
|
loginfo.flush()
|
|
value = ri.getmodattr(attr)
|
|
loginfo.write(str(value))
|
|
loginfo.write("\n")
|
|
loginfo.flush()
|
|
memswap = ri.getmemswap()
|
|
if memswap:
|
|
mem,swap = memswap
|
|
print >>loginfo, prefix, "Memory:", mem, "Swap:", swap
|
|
cpuinfo = ri.getcpuinfo()
|
|
if cpuinfo:
|
|
numcpu, model = cpuinfo
|
|
print >>loginfo, prefix, "number of cpus:", numcpu
|
|
print >>loginfo, prefix, "cpu model", model
|
|
return ri
|
|
|
|
if __name__ == '__main__':
|
|
options, args = parser.parse_args()
|
|
hosts = list(args)
|
|
ssh_config = options.ssh_config
|
|
if ssh_config:
|
|
hosts.extend(parsehosts(ssh_config))
|
|
ignores = options.ignores or ()
|
|
if ignores:
|
|
ignores = ignores.split(",")
|
|
for host in hosts:
|
|
if host not in ignores:
|
|
getinfo(host, ssh_config=ssh_config)
|
|
|