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From da98cbda7b61792d956b21f0a9999d91894ae194 Mon Sep 17 00:00:00 2001
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From: Florence Blanc-Renaud <flo@redhat.com>
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Date: Tue, 21 Aug 2018 17:55:45 +0200
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Subject: [PATCH] uninstall -v: remove Tracebacks
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ipa-server-install --uninstall -v -U prints Traceback in its log file.
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This issue happens because it calls subprocess.Popen with close_fds=True
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(which closes all file descriptors in the child process)
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but it is trying to use the file logger in the child process
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(preexec_fn is called in the child just before the child is executed).
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The fix is using the logger only in the parent process.
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Fixes: https://pagure.io/freeipa/issue/7681
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Reviewed-By: Rob Crittenden <rcritten@redhat.com>
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---
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 ipapython/ipautil.py | 23 ++++++++++++-----------
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 1 file changed, 12 insertions(+), 11 deletions(-)
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diff --git a/ipapython/ipautil.py b/ipapython/ipautil.py
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index 0de5fe86374429bfb9666a0d257e079883a1c56b..42329ad7c1677ad16c8d3275d79666005571cbc7 100644
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--- a/ipapython/ipautil.py
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+++ b/ipapython/ipautil.py
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@@ -481,20 +481,21 @@ def run(args, stdin=None, raiseonerr=True, nolog=(), env=None,
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     logger.debug('Starting external process')
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     logger.debug('args=%s', arg_string)
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-    def preexec_fn():
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-        if runas is not None:
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-            pent = pwd.getpwnam(runas)
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+    if runas is not None:
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+        pent = pwd.getpwnam(runas)
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-            suplementary_gids = [
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-                grp.getgrnam(sgroup).gr_gid for sgroup in suplementary_groups
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-            ]
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+        suplementary_gids = [
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+            grp.getgrnam(sgroup).gr_gid for sgroup in suplementary_groups
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+        ]
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-            logger.debug('runas=%s (UID %d, GID %s)', runas,
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-                         pent.pw_uid, pent.pw_gid)
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-            if suplementary_groups:
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-                for group, gid in zip(suplementary_groups, suplementary_gids):
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-                    logger.debug('suplementary_group=%s (GID %d)', group, gid)
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+        logger.debug('runas=%s (UID %d, GID %s)', runas,
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+                     pent.pw_uid, pent.pw_gid)
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+        if suplementary_groups:
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+            for group, gid in zip(suplementary_groups, suplementary_gids):
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+                logger.debug('suplementary_group=%s (GID %d)', group, gid)
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+    def preexec_fn():
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+        if runas is not None:
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             os.setgroups(suplementary_gids)
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             os.setregid(pent.pw_gid, pent.pw_gid)
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             os.setreuid(pent.pw_uid, pent.pw_uid)
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-- 
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2.17.1
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