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Description of problem: ipa-replica-install should handle keyboard interrupt gracefiully rather than throwing traceback. Version-Release number of selected component (if applicable): ipa-server-4.4.0-8.el7.x86_64 How reproducible: Always Steps to Reproduce: 1. Install ipa-server. 2. Install replica server using the command #ipa-replica-install -P admin -w Secret123 3. Try to do a Ctrl+C before the command is sucessfully completed. Actual results: Traceback is thrown on the console. [root@replica ~]# ipa-replica-install Configuring client side components One of password / principal / keytab is required. Installation failed. Rolling back changes. IPA client is not configured on this system. Removing client side components ^CTraceback (most recent call last): File "/usr/sbin/ipa-client-install", line 43, in <module> from ipaclient import ipadiscovery File "/usr/lib/python2.7/site-packages/ipaclient/ipadiscovery.py", line 25, in <module> from dns import resolver, rdatatype File "/usr/lib/python2.7/site-packages/dns/resolver.py", line 35, in <module> import dns.message File "/usr/lib/python2.7/site-packages/dns/message.py", line 27, in <module> import dns.name File "/usr/lib/python2.7/site-packages/dns/name.py", line 30, in <module> import encodings.idna File "/usr/lib64/python2.7/encodings/idna.py", line 7, in <module> dots = re.compile(u"[\u002E\u3002\uFF0E\uFF61]") File "/usr/lib64/python2.7/re.py", line 190, in compile return _compile(pattern, flags) File "/usr/lib64/python2.7/re.py", line 240, in _compile p = sre_compile.compile(pattern, flags) File "/usr/lib64/python2.7/sre_compile.py", line 505, in compile code = _code(p, flags) File "/usr/lib64/python2.7/sre_compile.py", line 490, in _code _compile(code, p.data, flags) File "/usr/lib64/python2.7/sre_compile.py", line 58, in _compile _compile_charset(av, flags, code, fixup) File "/usr/lib64/python2.7/sre_compile.py", line 184, in _compile_charset for op, av in _optimize_charset(charset, fixup): File "/usr/lib64/python2.7/sre_compile.py", line 227, in _optimize_charset return _optimize_unicode(charset, fixup) File "/usr/lib64/python2.7/sre_compile.py", line 307, in _optimize_unicode charmap = [0]*65536 KeyboardInterrupt ipa.ipapython.install.cli.install_tool(Replica): ERROR The ipa-replica-install command failed. See /var/log/ipareplica-install.log for more information Expected results: Handle keyboard interrupt for the command. Additional info:
Upstream ticket: https://fedorahosted.org/freeipa/ticket/6281
IdM team doesn't have capacity to fix this bug for RHEL 7.4. Moving to next RHEL version. Fixing the bug there will depend on capacity of FreeIPA upstream. Without sufficient justification there is a chance that it will be moved again later.
For the record, the failure is in ipa-client-install and is easily reproduced by running ipa-client-install -U and quickly hitting ^C.
So I looked again. Basically we'd have to wrap the entire thing, imports and all, in a try/except KeyboardInterrupt to capture every possible catchable interrupt. IMHO it's not worth it. This is a rare event.