Created
July 12, 2018 07:55
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Print EC2 instances by tag value
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#!/usr/bin/python | |
# Used on bastion host (jumpbox) | |
# e.g.: for feedserver in $(/usr/bin/getinstances feed-server); do echo $feedserver; ssh $feedserver; done; | |
# @todo: make VPC detection automatic | |
import sys | |
import json | |
import subprocess | |
from pprint import pprint | |
cluster = sys.argv[1] | |
cmd = 'aws ec2 describe-instances --filters "Name=tag-value,Values=' + cluster + '" "Name=instance-state-code,Values=16" "Name=vpc-id,Values=vpc-e5dd9d8d"' | |
push = subprocess.Popen(cmd, shell=True, stdout = subprocess.PIPE) | |
output, err = push.communicate() | |
parsed = json.loads(output) | |
for instances in parsed['Reservations']: | |
for instance in instances['Instances']: | |
print instance['PrivateIpAddress'] |
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