Mercurial > repos > shellac > sam_consensus_v3
diff env/bin/list_instances @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/env/bin/list_instances Mon Mar 22 18:12:50 2021 +0000 @@ -0,0 +1,90 @@ +#!/Users/cmdms/OneDrive-UOB/Development/Projects/2021/sam-consensus-v3/env/bin/python3 + +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}, + 'PrivateHostname': {'get': attrgetter('private_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") + parser.add_option("-t", "--tab", help="Tab delimited, skip header - useful in shell scripts", action="store_true", default=False) + parser.add_option("-f", "--filter", help="Filter option sent to DescribeInstances API call, format is key1=value1,key2=value2,...", default=None) + (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'] + + + # Parse filters (if any) + if options.filter: + filters = dict([entry.split('=') for entry in options.filter.split(',')]) + else: + filters = {} + + # List and print + + if not options.tab: + print(format_string % headers) + print("-" * len(format_string % headers)) + + for r in ec2.get_all_reservations(filters=filters): + groups = [g.name for g in r.groups] + for i in r.instances: + i.groups = ','.join(groups) + if options.tab: + print("\t".join(tuple(get_column(h, i) for h in headers))) + else: + print(format_string % tuple(get_column(h, i) for h in headers)) + + +if __name__ == "__main__": + main()