[CentOS] How do I confirm importing repo key without user intervention?

> what about importing the key beforehand

> rpm --import keyfile

That's what I do. But when I try to install a package from that
(passenger) repository manually, yum wants my confirmation:

# curl --fail -sSLo /etc/yum.repos.d/passenger.repo
https://oss-binaries.phusionpassenger.com/yum/definitions/el-passenger.repo

# grep gpgkey /etc/yum.repos.d/passenger.repo
gpgkey=https://packagecloud.io/gpg.key
gpgkey=https://packagecloud.io/gpg.key


# rpm --import 'https://packagecloud.io/gpg.key'

# yum install passenger
Loaded plugins: fastestmirror
passenger/7/x86_64/signature
       |  836 B  00:00:00
Retrieving key from https://packagecloud.io/gpg.key
Importing GPG key 0xD59097AB:
 Userid     : "packagecloud ops (production key) <ops at packagecloud.io>"
 Fingerprint: 418a 7f2f b0e1 e6e7 eabf 6fe8 c2e7 3424 d590 97ab
 From       : https://packagecloud.io/gpg.key

When I do it from a script, it fails.

Regards,
Yuri