Varnish in Ubuntu 22.04

[aizu]

apt install debian-archive-keyring curl gnupg apt-transport-https

tee /etc/apt/sources.list.d/varnishcache_varnish70.list > /dev/null <<-EOF
deb https://packagecloud.io/varnishcache/varnish70/ubuntu/ focal main
deb-src https://packagecloud.io/varnishcache/varnish70/ubuntu/ focal main
EOF

curl -fsSL https://packagecloud.io/varnishcache/varnish70/gpgkey | sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/varnish.gpg

Ref:

1. https://www.rosehosting.com/blog/how-to-install-varnish-on-ubuntu-22-04/

2. https://unixcop.com/varnish-apache-ubuntu-22-04/