import argparse
import subprocess
import json
import sys


parser = argparse.ArgumentParser()
args = parser.parse_args()


def info(msg):
    sys.stdout.write('* {}\n'.format(msg))
    sys.stdout.flush()

info('Determining current production details...')
output = subprocess.check_output(['tutum', 'service', 'inspect', 'lb.muzhack-staging']).decode(
    'utf-8')
data = json.loads(output)
linked_service = data['linked_to_service'][0]['name']
info('Currently linked service is \'{}\''.format(linked_service))

if linked_service == 'muzhack-green':
    link_to = 'muzhack-blue'
else:
    assert linked_service == 'muzhack-blue'
    link_to = 'muzhack-green'

info('Redeploying service \'{}\'...'.format(link_to))
subprocess.check_call(['tutum', 'service', 'redeploy', '--sync', link_to], stdout=subprocess.PIPE)

info('Linking to service \'{}\'...'.format(link_to))
subprocess.check_call(['tutum', 'service', 'set', '--link-service', '{0}:{0}'.format(link_to),
    '--sync', 'lb'], stdout=subprocess.PIPE)
info('Successfully switched production service to {}'.format(link_to))

import argparse
import subprocess
import json
import sys


parser = argparse.ArgumentParser()
args = parser.parse_args()


def info(msg):
    sys.stdout.write('* {}\n'.format(msg))
    sys.stdout.flush()

info('Determining current production details...')
output = subprocess.check_output(['tutum', 'service', 'inspect', 'lb.muzhack-staging']).decode(
    'utf-8')
data = json.loads(output)
linked_service = data['linked_to_service'][0]['name']
info('Currently linked service is \'{}\''.format(linked_service))

if linked_service == 'muzhack-green':
    link_to = 'muzhack-blue'
else:
    assert linked_service == 'muzhack-blue'
    link_to = 'muzhack-green'

info('Redeploying service \'{}\'...'.format(link_to))
subprocess.check_call(['tutum', 'service', 'redeploy', '--sync', link_to], stdout=subprocess.PIPE)

info('Linking to service \'{}\'...'.format(link_to))
subprocess.check_call(['tutum', 'service', 'set', '--link-service', '{0}:{0}'.format(link_to),
    '--sync', 'lb.muzhack-staging'], stdout=subprocess.PIPE)
info('Successfully switched production service to {}'.format(link_to))

Make sure to update correct load balancer
Make sure to update correct load balancer

  import argparse
  import subprocess
  import json
  import sys
  
  
  parser = argparse.ArgumentParser()
  args = parser.parse_args()
  
  
  def info(msg):
      sys.stdout.write('* {}\n'.format(msg))
      sys.stdout.flush()
  
  info('Determining current production details...')
  output = subprocess.check_output(['tutum', 'service', 'inspect', 'lb.muzhack-staging']).decode(
      'utf-8')
  data = json.loads(output)
  linked_service = data['linked_to_service'][0]['name']
  info('Currently linked service is \'{}\''.format(linked_service))
  
  if linked_service == 'muzhack-green':
      link_to = 'muzhack-blue'
  else:
      assert linked_service == 'muzhack-blue'
      link_to = 'muzhack-green'
  
  info('Redeploying service \'{}\'...'.format(link_to))
  subprocess.check_call(['tutum', 'service', 'redeploy', '--sync', link_to], stdout=subprocess.PIPE)
  
  info('Linking to service \'{}\'...'.format(link_to))
  subprocess.check_call(['tutum', 'service', 'set', '--link-service', '{0}:{0}'.format(link_to),
-     '--sync', 'lb'], stdout=subprocess.PIPE)
+     '--sync', 'lb.muzhack-staging'], stdout=subprocess.PIPE)
  info('Successfully switched production service to {}'.format(link_to))
  
Make sure to update correct load balancer
## Code Before:
import argparse
import subprocess
import json
import sys


parser = argparse.ArgumentParser()
args = parser.parse_args()


def info(msg):
    sys.stdout.write('* {}\n'.format(msg))
    sys.stdout.flush()

info('Determining current production details...')
output = subprocess.check_output(['tutum', 'service', 'inspect', 'lb.muzhack-staging']).decode(
    'utf-8')
data = json.loads(output)
linked_service = data['linked_to_service'][0]['name']
info('Currently linked service is \'{}\''.format(linked_service))

if linked_service == 'muzhack-green':
    link_to = 'muzhack-blue'
else:
    assert linked_service == 'muzhack-blue'
    link_to = 'muzhack-green'

info('Redeploying service \'{}\'...'.format(link_to))
subprocess.check_call(['tutum', 'service', 'redeploy', '--sync', link_to], stdout=subprocess.PIPE)

info('Linking to service \'{}\'...'.format(link_to))
subprocess.check_call(['tutum', 'service', 'set', '--link-service', '{0}:{0}'.format(link_to),
    '--sync', 'lb'], stdout=subprocess.PIPE)
info('Successfully switched production service to {}'.format(link_to))

## Instruction:
Make sure to update correct load balancer
## Code After:
import argparse
import subprocess
import json
import sys


parser = argparse.ArgumentParser()
args = parser.parse_args()


def info(msg):
    sys.stdout.write('* {}\n'.format(msg))
    sys.stdout.flush()

info('Determining current production details...')
output = subprocess.check_output(['tutum', 'service', 'inspect', 'lb.muzhack-staging']).decode(
    'utf-8')
data = json.loads(output)
linked_service = data['linked_to_service'][0]['name']
info('Currently linked service is \'{}\''.format(linked_service))

if linked_service == 'muzhack-green':
    link_to = 'muzhack-blue'
else:
    assert linked_service == 'muzhack-blue'
    link_to = 'muzhack-green'

info('Redeploying service \'{}\'...'.format(link_to))
subprocess.check_call(['tutum', 'service', 'redeploy', '--sync', link_to], stdout=subprocess.PIPE)

info('Linking to service \'{}\'...'.format(link_to))
subprocess.check_call(['tutum', 'service', 'set', '--link-service', '{0}:{0}'.format(link_to),
    '--sync', 'lb.muzhack-staging'], stdout=subprocess.PIPE)
info('Successfully switched production service to {}'.format(link_to))
