Icinga2, icingaweb2, director and pnp4nagios on ubuntu 20.04 howto

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My versions are:
icinga2web: 2.8.2
php: 7.4.3
icinga2:2.12.3-1
pnp4nagios: 0.6.26
So I am on a newer pnp4nagios, php and icinga2