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upgrade: adtrust - catch empty result when retrieving list of trusts

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Upgrade failure when ipa-server-upgrade is being run on a system with no
trust established but trust configured

Fixes: https://pagure.io/freeipa/issue/7939
Reviewed-By: François Cami <fcami@redhat.com>
This commit is contained in:
Alexander Bokovoy 2019-05-11 11:54:40 +03:00 committed by François Cami
parent 5331510eab
commit 98b4c710d9
1 changed files with 11 additions and 5 deletions
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16
ipaserver/install/plugins/adtrust.py
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@ -609,11 +609,17 @@ class update_tdo_to_new_layout(Updater):
trusts_dn = self.api.env.container_adtrusts + self.api.env.basedn
trusts = ldap.get_entries(
base_dn=trusts_dn,
scope=ldap.SCOPE_ONELEVEL,
filter=self.trust_filter,
attrs_list=self.trust_attrs)
# We might be in a situation when no trusts exist yet
# In such case there is nothing to upgrade but we have to catch
# an exception or it will abort the whole upgrade process
try:
trusts = ldap.get_entries(
base_dn=trusts_dn,
scope=ldap.SCOPE_ONELEVEL,
filter=self.trust_filter,
attrs_list=self.trust_attrs)
except errors.EmptyResult:
trusts = []
# For every trust, retrieve its principals and convert
for t_entry in trusts: