In a multi-host Gerrit environment (HA or failover) it's plausible
that admins may use one mechanism for managing ingress for HTTP
requests and a different for SSH requests. Or admins may have
different firewall rules for each. To accomodate these situations,
Add an "ssh_server" configuration item for Gerrit. This makes the
set of hostname-like items the following:
* server: the HTTP hostname and default for all others
* canonical_hostname: what to use for golang-style git paths
* ssh_server: the hostname to use for SSH connections
* baseurl: the base URL for HTTP connections
The following are equivalent:
server=review.example.com
ssh_server=ssh-review.example.com
and:
server=ssh-review.example.com
baseurl=https://review.example.com
Change-Id: I6e9cd9f48c1a78d8d24bfe176efbb932a18ec83c
595fb3e9ef