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executable file 74 lines (60 sloc) 2.385 kB
#!/usr/bin/env python
import sys
from operator import attrgetter
from optparse import OptionParser
import boto
from boto.ec2 import regions
HEADERS = {
'ID': {'get': attrgetter('id'), 'length':15},
'Zone': {'get': attrgetter('placement'), 'length':15},
'Groups': {'get': attrgetter('groups'), 'length':30},
'Hostname': {'get': attrgetter('public_dns_name'), 'length':50},
'State': {'get': attrgetter('state'), 'length':15},
'Image': {'get': attrgetter('image_id'), 'length':15},
'Type': {'get': attrgetter('instance_type'), 'length':15},
'IP': {'get': attrgetter('ip_address'), 'length':16},
'PrivateIP': {'get': attrgetter('private_ip_address'), 'length':16},
'Key': {'get': attrgetter('key_name'), 'length':25},
'T:': {'length': 30},
}
def get_column(name, instance=None):
if name.startswith('T:'):
_, tag = name.split(':', 1)
return instance.tags.get(tag, '')
return HEADERS[name]['get'](instance)
def main():
parser = OptionParser()
parser.add_option("-r", "--region", help="Region (default us-east-1)", dest="region", default="us-east-1")
parser.add_option("-H", "--headers", help="Set headers (use 'T:tagname' for including tags)", default=None, action="store", dest="headers", metavar="ID,Zone,Groups,Hostname,State,T:Name")
(options, args) = parser.parse_args()
# Connect the region
for r in regions():
if r.name == options.region:
region = r
break
else:
print "Region %s not found." % options.region
sys.exit(1)
ec2 = boto.connect_ec2(region=region)
# Read headers
if options.headers:
headers = tuple(options.headers.split(','))
else:
headers = ("ID", 'Zone', "Groups", "Hostname")
# Create format string
format_string = ""
for h in headers:
if h.startswith('T:'):
format_string += "%%-%ds" % HEADERS['T:']['length']
else:
format_string += "%%-%ds" % HEADERS[h]['length']
# List and print
print format_string % headers
print "-" * len(format_string % headers)
for r in ec2.get_all_instances():
groups = [g.id for g in r.groups]
for i in r.instances:
i.groups = ','.join(groups)
print format_string % tuple(get_column(h, i) for h in headers)
if __name__ == "__main__":
main()
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