Fix IPSec client to use hostname in workers nodes

This commits changes IPSec client to use hostname instead of IP Address
on swanctl configuration parameter local addr in worker nodes.

Test Plan:
PASS: In a DX system with IPsec enabled and security association
      established in both controllers, add a worker node and observe
      that IPSec will be enabled and security association will
      established in the three nodes without manually intervention.

Story: 2010940
Task: 50039

Change-Id: Idba336e3870f33db840846578441984e11b0d574
Signed-off-by: Leonardo Mendes <Leonardo.MendesSantana@windriver.com>

sysinv/sysinv/sysinv/sysinv/ipsec_auth/client/client.py

@@ -189,7 +189,7 @@ class Client(object):
                     self.local_addr = self.hostname[constants.UNIT_HOSTNAME] + ', ' \
                                     + self.hostname[constants.FLOATING_UNIT_HOSTNAME]
                 else:
-                    self.local_addr = utils.get_ip_addr(self.ifname)
+                    self.local_addr = self.hostname[constants.UNIT_HOSTNAME]
 
                 LOG.info("Generating config files and restart ipsec")
                 strong = config.StrongswanPuppet(self.hostname[constants.UNIT_HOSTNAME],

sysinv/sysinv/sysinv/sysinv/ipsec_auth/common/constants.py

@@ -11,7 +11,6 @@ TCP_SERVER = (DEFAULT_BIND_ADDR, DEFAULT_LISTEN_PORT)
 
 PLATAFORM_CONF_FILE = '/etc/platform/platform.conf'
 
-SIOCGIFADDR = 0x8915
 SIOCGIFHWADDR = 0x8927
 
 API_VERSION_CERT_MANAGER = 'cert-manager.io/v1'

sysinv/sysinv/sysinv/sysinv/ipsec_auth/common/utils.py

@@ -55,16 +55,6 @@ def get_management_interface():
     return get_plataform_conf('management_interface')
 
 
-def get_ip_addr(ifname):
-    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
-    try:
-        ifstruct = struct.pack('256s', bytes(ifname[:15], 'utf-8'))
-        info = fcntl.ioctl(s.fileno(), constants.SIOCGIFADDR, ifstruct)
-        return socket.inet_ntoa(info[20:24])
-    except Exception as e:
-        LOG.exception("Error getting ip address: %s" % (e))
-
-
 def get_hw_addr(ifname):
     s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
     try: