Switch to switch Ngix (blue / green - deploy) proxy

switchDeploy.sh

#!/bin/bash
##########################################
# Cfg
blue="/etc/nginx/sites-enabled/blue"
green="/etc/nginx/sites-enabled/green"

# Functions
reloadNg (){
  /etc/init.d/nginx restart
}

switch2Green () {
  echo "Switching to: green"
  rm -rf $blue
  ln -s /etc/nginx/sites-available/green $green
  reloadNg
  exit 0
}

switch2Blue () {
  echo "Switching to: blue"
  rm -rf $green
  ln -s /etc/nginx/sites-available/blue $blue
  reloadNg
  exit 0
}

findActive () {
  if [ -L $blue ]; then
    echo "ActiveSite:blue"
    switch2Green
  fi

  if [ -L $green ]; then
    echo "ActiveSite:green"
    switch2Blue
  fi

  echo "No active site!"
  switch2Blue
}

# Now some action
findActive