Comment 15 for bug 1533682

Still reproducable - https://product-ci.infra.mirantis.net/job/8.0.system_test.ubuntu.filling_root/51 ;
Logs indicates timeouts but I've ran "apt-get update" manually:
W: GPG error: http://mirror.fuel-infra.org mos8.0-holdback Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY BCE5CC461FA22B08
W: GPG error: http://mirror.fuel-infra.org mos8.0-security Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY BCE5CC461FA22B08
W: GPG error: http://mirror.fuel-infra.org mos8.0-updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY BCE5CC461FA22B08