On 08/15/2016 02:20 PM, Martin Babinsky wrote:
On 08/15/2016 02:13 PM, Martin Babinsky wrote:
On 08/12/2016 12:08 PM, Stanislav Laznicka wrote:
Hello,

topology disconnect/last-role-host removal errors would just be logged
during server uninstall even if ignore options are not present. The host
would still appear in the topology even after "successful" uninstall.

https://fedorahosted.org/freeipa/ticket/6168




The patch seems to be ok, however shouldn't we use sys.exit() when
handling ServerRemovalError? Yes raising SystemExit from within a
function is a horrible practice, but it is already done on several other
places instead of letting the exception bubble up to the main handler.

CC'ing Jan for his thoughts on this since I may be wrong.

Hmm, you will definitely need sys.exit() here since otherwise ipa-server-install reports 0 exit code even if there was an exception thrown:

"""
[root@master1 ~]# ipa-server-install --uninstall -U
ipa : ERROR Server removal aborted: Deleting this server will leave your installation without a DNS..
[root@master1 ~]# echo $?
0
"""

Because of #5750 (remove sys.exit() calls from installer modules) I rather raise ScriptError in this case. See the modified patch. It depends on either of my 48-4 or 48-5 patches (pick one).

From 6f7683fe0b9da6640a740bedf113bb3a9dc99bd1 Mon Sep 17 00:00:00 2001
From: Stanislav Laznicka <slazn...@redhat.com>
Date: Fri, 12 Aug 2016 11:59:41 +0200
Subject: [PATCH] Fail on topology disconnect/last role removal

Disconnecting topology/removing last-role-host during server
uninstallation should raise error rather than just being logged
if the appropriate ignore settings are not present.

https://fedorahosted.org/freeipa/ticket/6168
---
 ipaserver/install/server/install.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ipaserver/install/server/install.py b/ipaserver/install/server/install.py
index 8dc7a6820d214f15fb80fef29c7296fa237bc2a9..7a21126ac017dfad89cda9774fbec31c8818f745 100644
--- a/ipaserver/install/server/install.py
+++ b/ipaserver/install/server/install.py
@@ -294,7 +294,6 @@ def common_cleanup(func):
 def remove_master_from_managed_topology(api_instance, options):
     try:
         # we may force the removal
-        # if the master was already deleted we will just get a warning
         server_del_options = dict(
             force=True,
             ignore_topology_disconnect=options.ignore_topology_disconnect,
@@ -303,8 +302,10 @@ def remove_master_from_managed_topology(api_instance, options):
 
         replication.run_server_del_as_cli(
             api_instance, api_instance.env.host, **server_del_options)
-
+    except errors.ServerRemovalError as e:
+        raise ScriptError(e)
     except Exception as e:
+        # if the master was already deleted we will just get a warning
         root_logger.warning("Failed to delete master: {}".format(e))
 
 
-- 
2.7.4

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