add-apt-repository ppa:hnakamur/keepalived
upstream repository: https://github.com/acassen/keepalived
deb source repository: https://github.com/hnakamur/keepalived-deb
More info: https://launchpad.net/~hnakamur/+archive/ubuntu/keepalived
Press [ENTER] to continue or ctrl-c to cancel adding it

gpg: keyring `/tmp/tmprfmnb5nq/secring.gpg' created
gpg: keyring `/tmp/tmprfmnb5nq/pubring.gpg' created
gpg: requesting key 1017341E from hkp server keyserver.ubuntu.com
gpg: /tmp/tmprfmnb5nq/trustdb.gpg: trustdb created
gpg: key 1017341E: public key "Launchpad PPA for Hiroaki Nakamura" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
OK