Merge pull request #1655 from trevor-vaughan/BKR-1655_better_host_key…

…_checking_fix

[BRK-1655] Better strict_host_key_checking fix

lib/beaker/ssh_connection.rb

@@ -69,8 +69,13 @@ def connect_block host, user, ssh_opts, options
       begin
          @logger.debug "Attempting ssh connection to #{host}, user: #{user}, opts: #{ssh_opts}"
 
+         # Work around net-ssh 6+ incompatibilities
          if ssh_opts.include?(:strict_host_key_checking) && (Net::SSH::Version::CURRENT.major > 5)
-           ssh_opts[:paranoid] = ssh_opts.delete(:strict_host_key_checking)
+           strict_host_key_checking = ssh_opts.delete(:strict_host_key_checking)
+
+           unless ssh_opts[:verify_host_key].is_a?(Symbol)
+             ssh_opts[:verify_host_key] ||= strict_host_key_checking ? :always : :never
+           end
          end
 
          Net::SSH.start(host, user, ssh_opts)