annotate planemo/bin/list_instances @ 0:d30785e31577 draft

"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:18:57 -0400
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1 #!/Users/guerler/spring/springsuite/planemo/bin/python3
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2
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3 import sys
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4 from operator import attrgetter
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5 from optparse import OptionParser
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6
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7 import boto
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8 from boto.ec2 import regions
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9
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10
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11 HEADERS = {
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12 'ID': {'get': attrgetter('id'), 'length':15},
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13 'Zone': {'get': attrgetter('placement'), 'length':15},
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14 'Groups': {'get': attrgetter('groups'), 'length':30},
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15 'Hostname': {'get': attrgetter('public_dns_name'), 'length':50},
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16 'PrivateHostname': {'get': attrgetter('private_dns_name'), 'length':50},
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17 'State': {'get': attrgetter('state'), 'length':15},
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18 'Image': {'get': attrgetter('image_id'), 'length':15},
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19 'Type': {'get': attrgetter('instance_type'), 'length':15},
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20 'IP': {'get': attrgetter('ip_address'), 'length':16},
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21 'PrivateIP': {'get': attrgetter('private_ip_address'), 'length':16},
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22 'Key': {'get': attrgetter('key_name'), 'length':25},
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23 'T:': {'length': 30},
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24 }
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25
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26 def get_column(name, instance=None):
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27 if name.startswith('T:'):
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28 _, tag = name.split(':', 1)
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29 return instance.tags.get(tag, '')
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30 return HEADERS[name]['get'](instance)
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31
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32
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33 def main():
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34 parser = OptionParser()
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35 parser.add_option("-r", "--region", help="Region (default us-east-1)", dest="region", default="us-east-1")
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36 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")
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37 parser.add_option("-t", "--tab", help="Tab delimited, skip header - useful in shell scripts", action="store_true", default=False)
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38 parser.add_option("-f", "--filter", help="Filter option sent to DescribeInstances API call, format is key1=value1,key2=value2,...", default=None)
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39 (options, args) = parser.parse_args()
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40
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41
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42 # Connect the region
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43 for r in regions():
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44 if r.name == options.region:
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45 region = r
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46 break
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47 else:
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48 print("Region %s not found." % options.region)
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49 sys.exit(1)
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50 ec2 = boto.connect_ec2(region=region)
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51
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52 # Read headers
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53 if options.headers:
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54 headers = tuple(options.headers.split(','))
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55 else:
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56 headers = ("ID", 'Zone', "Groups", "Hostname")
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57
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58 # Create format string
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59 format_string = ""
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60 for h in headers:
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61 if h.startswith('T:'):
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62 format_string += "%%-%ds" % HEADERS['T:']['length']
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63 else:
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64 format_string += "%%-%ds" % HEADERS[h]['length']
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65
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66
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67 # Parse filters (if any)
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68 if options.filter:
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69 filters = dict([entry.split('=') for entry in options.filter.split(',')])
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70 else:
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71 filters = {}
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72
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73 # List and print
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74
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75 if not options.tab:
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76 print(format_string % headers)
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77 print("-" * len(format_string % headers))
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78
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79 for r in ec2.get_all_reservations(filters=filters):
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80 groups = [g.name for g in r.groups]
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81 for i in r.instances:
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82 i.groups = ','.join(groups)
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83 if options.tab:
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84 print("\t".join(tuple(get_column(h, i) for h in headers)))
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85 else:
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86 print(format_string % tuple(get_column(h, i) for h in headers))
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87
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88
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89 if __name__ == "__main__":
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90 main()