Check that port 8443 is available when installing PKI.

https://fedorahosted.org/freeipa/ticket/4564

Reviewed-By: Martin Kosek <mkosek@redhat.com>

install/tools/ipa-ca-install

@@ -75,6 +75,11 @@ def parse_options():
 def get_dirman_password():
     return installutils.read_password("Directory Manager (existing master)", confirm=False, validate=False)
 
+def check_ca():
+    if not cainstance.check_port():
+        print "IPA requires port 8443 for PKI but it is currently in use."
+        sys.exit(1)
+
 def install_dns_records(config, options):
 
     if not bindinstance.dns_container_exists(config.master_host_name,
@@ -177,6 +182,8 @@ def main():
     else:
         cainstance.replica_ca_install_check(config)
 
+    check_ca()
+
     # Configure the CA if necessary
     CA = cainstance.install_replica_ca(config, postinstall=True)
 

install/tools/ipa-replica-install

@@ -484,6 +484,11 @@ def main():
 
     check_dirsrv()
 
+    if options.setup_ca:
+        if not cainstance.check_port():
+            print "IPA requires port 8443 for PKI but it is currently in use."
+            sys.exit("Aborting installation")
+
     if options.conf_ntp:
         try:
             ipaclient.ntpconf.check_timedate_services()

install/tools/ipa-server-install

@@ -803,6 +803,11 @@ def main():
         # Make sure the 389-ds ports are available
         check_dirsrv(options.unattended)
 
+    if setup_ca:
+        if not cainstance.check_port():
+            print "IPA requires port 8443 for PKI but it is currently in use."
+            sys.exit("Aborting installation")
+
     if options.conf_ntp:
         try:
             ipaclient.ntpconf.check_timedate_services()

ipaserver/install/cainstance.py

@@ -105,6 +105,14 @@ def check_inst():
 
     return True
 
+def check_port():
+    """
+    Check that dogtag port (8443) is available.
+
+    Returns True when the port is free, False if it's taken.
+    """
+    return not ipautil.host_port_open(None, 8443)
+
 def get_preop_pin(instance_root, instance_name):
     # Only used for Dogtag 9
     preop_pin = None