openstack/ironic
Code Issues Proposed changes

[Grenade]: Do not run ir-api on primary node after upgrade

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Ironic upgrade process has pre-requirement that ironic-conductors
should be upgraded before ironic-api. Grenade is launched on primary
node, where we have ir-api and ir-cond runnning. Do not start ir-api
on primary node after upgrade to avoid situation when we have new ir-api
(primary) and old ir-cond (subnode) as it is not allowed by upgrade
procedure. Instead redirect all requests destinied to ir-api on primary
node to subnode.

Depends-On: I026121121059768aa74389add7eee6e63fdb214d

Change-Id: I9e496353a1d3d6547e4881f96fb187e488cff83f
This commit is contained in:
Vasyl Saienko
2017-04-12 13:51:46 +03:00
parent 8fa488ccfc
commit fdf6f89a23
3 changed files with 55 additions and 7 deletions
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37
devstack/upgrade/upgrade.sh
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@@ -71,9 +71,35 @@ stack_install_service ironic
# calls upgrade-ironic for specific release
upgrade_project ironic $RUN_DIR $BASE_DEVSTACK_BRANCH $TARGET_DEVSTACK_BRANCH
$IRONIC_BIN_DIR/ironic-dbsync --config-file=$IRONIC_CONF_FILE
iniset $IRONIC_CONF_FILE DEFAULT pin_release_version ${BASE_DEVSTACK_BRANCH#*/}
ensure_started='ironic-conductor nova-compute '
ensure_stopped=''
# Don't succeed unless the services come up
logs_exist="ir-cond"
# Multinode grenade is designed to upgrade services only on primary node. And there is no way to manipulate
# subnode during grenade phases. With this after upgrade we can have upgraded (new) services on primary
# node and not upgraded (old) services on subnode.
# According to Ironic upgrade procedure, we shouldn't have upgraded (new) ironic-api and not upgraded (old)
# ironic-conductor. By setting redirect of API requests from primary node to subnode during upgrade
# allow to satisfy ironic upgrade requirements.
if [[ "$HOST_TOPOLOGY_ROLE" == 'primary' ]]; then
disable_service ir-api
ensure_stopped+='ironic-api'
ironic_apache_conf=$(apache_site_config_for ironic-api-redirect)
sudo cp $IRONIC_DEVSTACK_FILES_DIR/apache-ironic-api-redirect.template $ironic_apache_conf
sudo sed -e "
s|%IRONIC_SERVICE_PORT%|$IRONIC_SERVICE_PORT|g;
s|%IRONIC_SERVICE_PROTOCOL%|$IRONIC_SERVICE_PROTOCOL|g;
s|%IRONIC_SERVICE_HOST%|$IRONIC_PROVISION_SUBNET_SUBNODE_IP|g;
" -i $ironic_apache_conf
enable_apache_site ironic-api-redirect
else
ensure_started+='ironic-api '
fi
start_ironic
# NOTE(vsaienko) installing ironic service triggers apache restart, that
@@ -82,14 +108,11 @@ stop_nova_compute || true
wait_for_keystone
start_nova_compute
# Don't succeed unless the services come up
logs_exist="ir-cond"
if [[ "$IRONIC_USE_MOD_WSGI" != "True" ]]; then
logs_exist+=" ir-api"
if [[ -n "$ensure_stopped" ]]; then
ensure_services_stopped $ensure_stopped
fi
ensure_services_started ironic-api ironic-conductor
ensure_services_started $ensure_started
ensure_logs_exist $logs_exist
# We need these steps only in case of flat-network