Retry connection errors when bootstrapping bifrost

[ryancragun]

When bootstrapping new Chef Servers we've found a race condition where
the bifrost bootstrap is attempted before the service is avilable. This
change retries the ECONNREFUSED error that is raised when this occurs.

Recipe: private-chef::bootstrap
  * execute[/opt/opscode/bin/chef-server-ctl start postgresql] action run
    - execute /opt/opscode/bin/chef-server-ctl start postgresql
  * execute[/opt/opscode/bin/chef-server-ctl start oc_bifrost] action run
    - execute /opt/opscode/bin/chef-server-ctl start oc_bifrost
  * ruby_block[bootstrap-chef-server-data] action run[2016-11-29T18:34:09+00:00] WARN: Error from bifrost: Connection refused - connect(2) for "127.0.0.1" port 946
3, retrying after 1s. Retries remaining: 4

    - execute the ruby block bootstrap-chef-server-data
  * file[/var/opt/opscode/bootstrapped] action create
    - create new file /var/opt/opscode/bootstrapped
    - update content in file /var/opt/opscode/bootstrapped from none to 66e3eb
    --- /var/opt/opscode/bootstrapped   2016-11-29 18:34:10.497090364 +0000
    +++ /var/opt/opscode/.chef-bootstrapped20161129-4253-tqdg75 2016-11-29 18:34:10.497090364 +0000
    @@ -1 +1,2 @@
    +bootstrapped on 2016-11-29T18:33:41+00:00 (you punk)
    - change mode from '' to '0600'
    - change owner from '' to 'root'
    - change group from '' to 'root'

[sdelano]

👍 LGTM

[stevendanna]

LGTM