Upgrade procedure

https://www.x-tee.ee/docs/live/xroad/ig-xlb_x-road_external_load_balancer_installation_guide.html#72-online-rolling-upgrade

Enable maintenance mode(run from security server)

curl http://localhost:5566/maintenance?targetState=true

Watch connections and wait until all requests are finished

watch -n1 ss -tn state established sport = :5500 or dport = :5500

Make snapshot of machine

Unhold xroad packages

apt-mark unhold xroad-*

Update package list

apt update

Upgrade xroad packages

apt install xroad-securityserver-ee

Hold xroad packages

apt-mark hold xroad-*

Disable maintanance mode(run from security server)

curl http://localhost:5566/maintenance?targetState=false