<a href="https://www.youtube.com/embed/hDNnTDjHXQk?wmode=opaque&autoplay=1&showinfo=0&autohide=1">Embedded video for Lessons learned on upgrades: the importance of HA and automation</a> Lessons learned on upgrades: the importance of HA and automation Frederic Lepied, Emilien Macchi @ OpenStack Summit Vancouver 2015 OpenStackCloud 心得分享 分享你的心得與摘要，幫助其他人學習!
