From 98e4a6558f01d59106d5fcc3aa5fca4aa9bc02ff Mon Sep 17 00:00:00 2001 From: Liam Young Date: Fri, 9 Mar 2018 10:01:22 +0100 Subject: [PATCH] Warn unattended-upgrades and co-located charms Add warning to upgrade guide concerning unattended-upgrades in environments that have co-located charms. Change-Id: I256a9ea2de2e152d1f2ede8312365e9fc86642da --- deploy-guide/source/app-upgrade-openstack.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/deploy-guide/source/app-upgrade-openstack.rst b/deploy-guide/source/app-upgrade-openstack.rst index 1884c25..84ecdf4 100644 --- a/deploy-guide/source/app-upgrade-openstack.rst +++ b/deploy-guide/source/app-upgrade-openstack.rst @@ -199,6 +199,18 @@ run: juju run --application application-name is-leader +.. warning:: + + Extra care must be taken when performing OpenStack upgrades in an + environment with a converged architecture. If two principle charms have + been placed on the same unit (e.g. nova-compute and ceph-osd), then + upgrading one of the charms will cause the underlying system to be updated + to point at packages from the next Openstack release. If the machine has + unattended-upgrades enabled, which is the default in xenial and bionic, the + second charm may have its packages updated outside of juju's control. We + recommend disabling unattended upgrades for the duration of the upgrade + process, and to renable unattended-upgrades once complete. + HA with pause/resume ~~~~~~~~~~~~~~~~~~~~