ipa-advise: fallback to /usr/libexec/platform-python if python3 not found

when ipa-advise generates a script to configure a client for smart card
auth, the script calls python3 to configure SSSD. The issue happens
if the server (when ipa-advise is run) and the client do not have
the same path for python3 command.

By default, try to use python3 but if the command is not found, fallback
to /usr/libexec/platform-python (which is the python3 path on RHEL8).

Fixes: https://pagure.io/freeipa/issue/8311
Reviewed-By: Christian Heimes <cheimes@redhat.com>
This commit is contained in:
Florence Blanc-Renaud 2020-05-04 17:18:03 +02:00 committed by Christian Heimes
parent 19ea1b97a1
commit edcfba6010

View File

@ -341,12 +341,21 @@ class config_client_for_smart_card_auth(common_smart_card_auth_config):
def configure_pam_cert_auth(self):
self.log.comment('Set pam_cert_auth=True in /etc/sssd/sssd.conf')
self.log.comment('This step is required only when authselect is used')
# If the advise command is run on RHEL7 or fedora but the client
# is rhel8, python3 executable may be in a different location
# Find the right python path first
self.log.command("python3 --version >/dev/null 2>&1")
self.log.commands_on_predicate(
'[ "$?" -eq 0 ]',
['PYTHON3CMD=python3'],
['PYTHON3CMD=/usr/libexec/platform-python']
)
self.log.commands_on_predicate(
'[ -f {} ]'.format(paths.AUTHSELECT),
["{} -c 'from SSSDConfig import SSSDConfig; "
["${PYTHON3CMD} -c 'from SSSDConfig import SSSDConfig; "
"c = SSSDConfig(); c.import_config(); "
"c.set(\"pam\", \"pam_cert_auth\", \"True\"); "
"c.write()'".format(sys.executable)])
"c.write()'"])
def restart_sssd(self):
self.log.command('systemctl restart sssd.service')