Always add DNS records when installing a replica

Even if the replica is not running a DNS server other replicas might.
So if the DNS container is present, then try to add DNS records.

Fixes: https://fedorahosted.org/freeipa/ticket/824

install/tools/ipa-replica-install

@@ -245,6 +245,8 @@ def install_http(config):
             sys.exit(1)
 
 def install_bind(config, options):
+    api.Backend.ldap2.connect(bind_dn="cn=Directory Manager",
+                              bind_pw=config.dirman_password)
     if options.forwarders:
         forwarders = options.forwarders
     else:
@@ -266,6 +268,23 @@ def install_bind(config, options):
                config.domain_name, forwarders, options.conf_ntp, create_reverse)
     bind.create_instance()
 
+def install_dns_records(config, options):
+
+    if not bindinstance.dns_container_exists(config.host_name,
+                                             util.realm_to_suffix(config.realm_name)):
+        return
+
+    api.Backend.ldap2.connect(bind_dn="cn=Directory Manager",
+                              bind_pw=config.dirman_password)
+    bind = bindinstance.BindInstance(dm_password=config.dirman_password)
+    ip_address = resolve_host(config.host_name)
+    if not ip_address:
+        sys.exit("Unable to resolve IP address for host name")
+
+    bind.add_master_dns_records(config.host_name, ip_address,
+                                config.realm_name, config.domain_name,
+                                options.conf_ntp)
+
 def check_dirsrv():
     serverids = dsinstance.check_existing_installation()
     if serverids:
@@ -432,10 +451,9 @@ def main():
     service.restart("httpd")
 
     if options.setup_dns:
-        api.Backend.ldap2.connect(bind_dn="cn=Directory Manager",
-                                  bind_pw=config.dirman_password)
-
         install_bind(config, options)
+    else:
+        install_dns_records(config, options)
 
     # Call client install script
     try: