d5b12ce1ac
When 'cloud-init start' (network) runs, it will print information about the systems network info to the console. This will help in debugging instances.
84 lines
2.5 KiB
Python
84 lines
2.5 KiB
Python
import subprocess
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def netdev_info():
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fields = ( "hwaddr", "addr", "bcast", "mask" )
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ifcfg_out = subprocess.check_output(["ifconfig", "-a"])
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devs = { }
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for line in ifcfg_out.splitlines():
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if len(line) == 0:
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continue
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if line[0] not in ("\t", " "):
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curdev = line.split()[0]
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devs[curdev] = { "up": False }
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for field in fields:
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devs[curdev][field] = ""
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toks = line.lower().strip().split()
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if toks[0] == "up":
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devs[curdev]['up'] = True
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fieldpost = ""
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if toks[0] == "inet6":
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fieldpost = "6"
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for i in range(len(toks)):
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if toks[i] == "hwaddr":
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try:
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devs[curdev]["hwaddr"] = toks[i+1]
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except IndexError as e:
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pass
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for field in ("addr", "bcast", "mask"):
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target = "%s%s" % (field, fieldpost)
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if devs[curdev].get(target,""):
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continue
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if toks[i] == "%s:" % field:
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try:
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devs[curdev][target] = toks[i+1]
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except IndexError as e:
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pass
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elif toks[i].startswith("%s:" % field):
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devs[curdev][target] = toks[i][len(field)+1:]
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return(devs)
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def route_info():
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route_out = subprocess.check_output(["route", "-n"])
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routes = [ ]
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for line in route_out.splitlines()[1:]:
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if not line:
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continue
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toks = line.split()
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if toks[0] == "Kernel" or toks[0] == "Destination":
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continue
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routes.append(toks)
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return(routes)
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def getgateway():
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for r in route_info():
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if r[3].find("G") >= 0:
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return("%s[%s]" % (r[1],r[7]))
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return(None)
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def debug_info(pre="ci-info: "):
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lines = [ ]
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try:
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netdev = netdev_info()
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except Exception as e:
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lines.append("netdev_info failed!")
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netdev = []
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for (dev, d) in netdev.iteritems():
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lines.append("%s%-6s: %i %-15s %-15s %s" %
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(pre, dev, d["up"], d["addr"],d["mask"], d["hwaddr"]))
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try:
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routes = route_info()
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except Exception as e:
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lines.append("route_info failed")
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routes = []
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n = 0
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for r in routes:
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lines.append("%sroute-%d: %-15s %-15s %-15s %-6s %s" %
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(pre, n, r[0], r[1], r[2], r[7], r[3]))
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n = n+1
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return('\n'.join(lines))
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if __name__ == '__main__':
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print debug_info()
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