Switch from SKS to Ubuntu keyserver
Switch from SKS to Ubuntu keyserver

See also https://github.com/docker-library/faq#openpgp--gnupg-keys-and-verification and https://github.com/tianon/pgp-happy-eyeballs

infosiftr/hello-world,docker-library/hello-world,infosiftr/hello-world,docker-library/hello-world