GitLab7系から8系にあげるときのポイントと、Apacheだとソケットをhttpにしないとハマる話 ref: http://qiita.com/ikuwow/items/5faa16b54522fc5f4569

file0.txt

$ git pull origin master
Unable to connect ... connection refused 503（うろ覚え）

file1.txt

...（省略）...
gitlab_workhorse_options="-listenUmask 0 -listenNetwork unix -listenAddr $socket_path/gitlab-workhorse.socket -authBackend http://127.0.0.1:8080 -authSocket $rails_socket -documentRoot $app_root/public"
gitlab_workhorse_log="$app_root/log/gitlab-workhorse.log"
shell_path="/bin/bash"

# Read configuration variable file if it is present
test -f /etc/default/gitlab && . /etc/default/gitlab
...（省略）...

gitlab

gitlab_workhorse_options="-listenUmask 0 -listenNetwork tcp -listenAddr localhost:8181 -authBackend http://127.0.0.1:8080 -authSocket $socket_path/gitlab.socket -documentRoot $app_root/public"