aws-scripts/FindInstance.py

#! /usr/bin/python
#
# Find an instance amongst all profile configured. Note that it makes multiple calls
# to the FindInstanceInProfile.py in parallel.
#
# Unbuffered, no CRLF print:
from __future__ import print_function
import re, sys, os, subprocess
import boto3
import boto3.session
import threading 	# We may not do it yet, but developing with threadsafe in mind, as best I can

try:
	# Python 3
	import builtins
except ImportError:
	# Python 2
	import __builtin__ as builtins

# Debug levels:
#	1 = Show progress
#	2 = Informational
# 	5 = Include boto3 logging
DEBUG=0

if len(sys.argv) != 2:
	print("Usage: " + os.path.basename(sys.argv[0]) + " <searchstring>")
	exit(1)

SEARCHSTRING=sys.argv[1]

# Load profiles
try:
	cfile = open(os.path.expanduser("~") + "/.aws/credentials", "r")
except:
	print("You must have a ~/.aws/credentials file with profiles configured.")
	exit(3)

profiles = set()
for line in cfile:
	profile = re.match('^\[(.+)\]', line)
	if(profile):
		profiles.add(profile.group(1))

# End of for line
FOUND=0
processes = set()
for profile in profiles:
	if DEBUG >= 2:
		print("Searching profile " + profile)
#	returncode = subprocess.call(['FindInstanceInProfile.py', profile, SEARCHSTRING])
	process = subprocess.Popen(['FindInstanceInProfile.py', profile, SEARCHSTRING])
	if DEBUG >= 2:
		print("PID = " + str(process.pid))
	processes.add(process)
# We should have spawned all child processes. Let's wait for them.

for process in processes:
	if DEBUG >= 2:
		print("Waiting on process " + str(process.pid))
	returncode = process.wait()
	if(returncode == 0):
		# Found one
		FOUND = FOUND + 1

# Searched all the profiles
if(FOUND > 0):
	exit(0)
exit(255)