os-upgrade

#!/bin/bash
### Script for updating OpenStack services
### Marius Lazar @ AeriaGames - 10.05.2021
#
# VARIABLES
ver="focal-wallaby"   # version to update to
### cloud:focal-wallaby
declare -a machines

# STEP 1 - Update the machines
#
## running the updates on all machines
./os-update-distro
#
# STEP 2 - update charms
# use with caution - needs work
#./os-up-charm

#
# STEP 3 - Do a db backup
#
echo "Create DB backup and save it localy in /backup"
#juju run-action --wait mysql-innodb-cluster/0 mysqldump
# copy the backup into /backups
#juju ssh mysql-innodb-cluster/0 sudo chown -R ubuntu. /var/backups/mysql/
#juju scp -- mysql-innodb-cluster/0:/var/backups/mysql/mysqldump-all-databases-$(date +"%Y%m%d")*.gz /backups
# archive old data
juju run-action --wait nova-cloud-controller/0 archive-data

#
# STEP 4 - run the actual update in the order of dependencies
# create the function for updating
function update(){
	local charm=$1
	local status=$2 ### <y or n> sow the status
	echo "Starting update on " $charm
	juju run-action --wait $charm pause
	juju run-action --wait $charm openstack-upgrade
	juju run-action --wait $charm resume
	sleep 10
	if [ $status = "y" ]; then
	    watch -n5 -c juju status --color
	fi
}

# create preparation function
function prep(){
	local charm=$1  ### what is updating
	local type=$2  ### how it's updating <origin or source>
	declare -a units
	# this won't hurt if it's failing
	juju config $charm action-managed-upgrade=True
	if [ $type = "origin" ]; then
	    juju config $charm openstack-origin=cloud:$ver
	elif [ $type = "source" ]; then
	    juju config $charm source=cloud:$ver
	else
	    echo "WRONG type!!!"
	    exit 1
        fi
	# trying to find the leader as it should always be updated first
	cdetail=$(juju status --format="json" $charm | jq  .applications.\"$charm\".units)
	cunits=$(echo $cdetail | jq -rc 'keys')
	# removing the [ ]
	cunits=${cunits:1:-1} 
	OLDIFS=$IFS
	IFS=','
	for cunit in $cunits
	do
	    IFS=$OLDIFS
	    # removing " "
	    cunit=${cunit:1:-1}
	    trueleader=$(echo $cdetail | jq .\"$cunit\".leader)
	    if [ $trueleader = "true" ]; then
		cleader=$cunit
		echo $cleader
	    else
		units+=($cunit)
	    fi
	done
	IFS=$OLDIFS
	# running the actual update starting with the leader
	update $cleader y
	if [ ${#units[@]} -gt 0 ] ; then
	for unit in "${units[@]}"
	do
	    update $unit n
	done
	fi
	# clean up variables
	unset unit units charm type cleader OLDIFS cunit trueleader cunits cdetail
}

# ITEMIZED UPDATE!

#prep rabbitmq-server origin
### different update procedure
#juju run-action --wait rabbitmq-server complete-cluster-series-upgrade
# leave ceph alone!
#prep ceph-mon source

prep keystone origin
prep vault origin
  ### this may fail and it's OK-ish
#prep aodh origin
#barbican
#prep celiometer origin
#ceph-fs
#prep ceph-radosgw source
prep cinder origin
#designate
#designate-bind
#prep glance origin
#prep gnocchi origin
#heat
#manila
#manila-generic
prep neutron-api origin

#neutron-gateway
prep placement origin
prep nova-cloud-controller origin
prep openstack-dashboard origin
prep nova-compute origin
#prep ceph-osd source
#swift-proxy
#swift storage
#octavia
prep ovn-central source
prep cinder-ceph origin
  ### may fail
#prep memcached origin
prep neutron-api-plugin-ovn origin
prep ovn-chassis origin
  ### may fail