Merge "Fetch all compute ips via installer Fuel."

diff --cc func/env_setup.py
index f59883a,fdddf49..1f86f0e
--- 1/func/env_setup.py
--- 2/func/env_setup.py
+++ b/func/env_setup.py
@@@ -104,18 -112,63 +111,66 @@@ class Env_setup
              for val in v:
                  ipvar = val
                  ping_cmd = 'ping -D -c1 {0}'.format(ipvar)
 -                while os.system(ping_cmd) != 0:
 -                    print '\nWaiting for machine\n'
 -                    time.sleep(10)
 +                for i in range(attempts):
 +                    if os.system(ping_cmd) != 0:
 +                        print '\nWaiting for machine\n'
 +                        time.sleep(10)
 +                    else:
 +                        break
                  print ('\n\n %s is UP \n\n ' % ipvar)
  
-     def get_host_machine_info(self, host_tag):
+     @staticmethod
+     def fetch_compute_ips():
+         LOG.info("Fetch compute ips through installer")
+         ips = []
+ 
+         installer_type = os.environ['INSTALLER_TYPE']
+         installer_ip = os.environ['INSTALLER_IP']
+         if installer_type.down.lower() != "fuel" or "compass":
+             raise RuntimeError("%s is not supported" % installer_type)
+         if installer_ip:
+             raise RuntimeError("undefine environment variable INSTALLER_IP")
+ 
+         cmd = "bash ./fetch_compute_ip.sh -i %s -a %s" % \
+             (installer_type, installer_ip)
+         os.system(cmd)
+         home = expanduser("~")
+         os.chdir(home)
+         with open("ips.log", "r") as file:
+             data = file.read()
+         if data:
+             ips.extend(data.rstrip('\n').split('\n'))
+         LOG.info("All compute ips: %s" % ips)
+         return ips
  
+     def check_machine_ips(self, host_tag):
+         LOG.info("Check machine ips")
+         ips = self.fetch_compute_ips()
+         ips_num = len(ips)
+         num = len(host_tag)
+         if num > ips_num:
+             err = "host num %s > compute ips num %s" % (num, ips_num)
+             raise RuntimeError(err)
+ 
+         for x in range(num):
+             hostlabel = 'machine_' + str(x + 1)
+             if host_tag[hostlabel]['ip']:
+                 if host_tag[hostlabel]['ip'] in ips:
+                     info = "%s's ip %s is defined by test case yaml file" % \
+                         (hostlabel, host_tag[hostlabel]['ip'])
+                     LOG.info(info)
+                 else:
+                     err = "%s is not in %s" % (host_tag[hostlabel]['ip'], ips)
+                     raise RuntimeError(err)
+             else:
+                 host_tag[hostlabel]['ip'] = random.choice(ips)
+                 info = "assign ip %s to %s" % (host_tag[hostlabel]['ip'], hostlabel)
+             ips.remove(host_tag[hostlabel]['ip'])
+ 
+     def get_host_machine_info(self, host_tag):
          num = len(host_tag)
          offset = len(self.roles_ip_list)
+         self.check_machine_ips(host_tag)
          for x in range(num):
              hostlabel = 'machine_' + str(x + 1)
              self.roles_ip_list.insert(