From bf23ce191ba6daf3dfca604243dd88d2e3996eff Mon Sep 17 00:00:00 2001
From: Douwe Maan <douwe@gitlab.com>
Date: Sun, 11 Oct 2015 18:17:49 +0200
Subject: [PATCH] Enable arbitration in MailRoom

---
 Gemfile                      |  2 +-
 Gemfile.lock                 |  4 ++--
 config/mail_room.yml.example | 12 +++++++++++-
 doc/incoming_email/README.md | 30 ++++++++++++++++++++++++++++++
 4 files changed, 44 insertions(+), 4 deletions(-)

diff --git a/Gemfile b/Gemfile
index e8cdb7a4a97..967092994a6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -290,7 +290,7 @@ gem 'newrelic-grape'
 
 gem 'octokit', '~> 3.7.0'
 
-gem "mail_room", "~> 0.5.2"
+gem "mail_room", "~> 0.6.0"
 
 gem 'email_reply_parser', '~> 0.5.8'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 9911904d304..58426a60683 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -392,7 +392,7 @@ GEM
       systemu (~> 2.6.2)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
-    mail_room (0.5.2)
+    mail_room (0.6.0)
     method_source (0.8.2)
     mime-types (1.25.1)
     mimemagic (0.3.0)
@@ -854,7 +854,7 @@ DEPENDENCIES
   jquery-ui-rails (~> 4.2.1)
   kaminari (~> 0.16.3)
   letter_opener (~> 1.1.2)
-  mail_room (~> 0.5.2)
+  mail_room (~> 0.6.0)
   minitest (~> 5.7.0)
   mousetrap-rails (~> 1.4.6)
   mysql2 (~> 0.3.16)
diff --git a/config/mail_room.yml.example b/config/mail_room.yml.example
index ed4a5193a6a..bb624e8a187 100644
--- a/config/mail_room.yml.example
+++ b/config/mail_room.yml.example
@@ -12,8 +12,10 @@
     # :email: "gitlab-incoming@gmail.com"
     # # Email account password
     # :password: "password"
+
     # # The name of the mailbox where incoming mail will end up. Usually "inbox".
     # :name: "inbox"
+
     # # Always "sidekiq".
     # :delivery_method: sidekiq
     # # Always true.
@@ -25,5 +27,13 @@
     #   :namespace: resque:gitlab
     #   # Always "incoming_email".
     #   :queue: incoming_email
-    #   # Always "EmailReceiverWorker"
+    #   # Always "EmailReceiverWorker".
     #   :worker: EmailReceiverWorker
+
+    # # Always "redis".
+    # :arbitration_method: redis
+    # :arbitration_options:
+    #   # The URL to the Redis server. Should match the URL in config/resque.yml.
+    #   :redis_url: redis://localhost:6379
+    #   # Always "mail_room:gitlab".
+    #   :namespace: mail_room:gitlab
diff --git a/doc/incoming_email/README.md b/doc/incoming_email/README.md
index 87267423471..076c8c049a8 100644
--- a/doc/incoming_email/README.md
+++ b/doc/incoming_email/README.md
@@ -118,8 +118,10 @@ To set up a basic Postfix mail server with IMAP access on Ubuntu, follow [these
         :email: "incoming"
         # Email account password
         :password: "[REDACTED]"
+
         # The name of the mailbox where incoming mail will end up. Usually "inbox".
         :name: "inbox"
+
         # Always "sidekiq".
         :delivery_method: sidekiq
         # Always true.
@@ -133,6 +135,14 @@ To set up a basic Postfix mail server with IMAP access on Ubuntu, follow [these
           :queue: incoming_email
           # Always "EmailReceiverWorker"
           :worker: EmailReceiverWorker
+
+        # Always "redis".
+        :arbitration_method: redis
+        :arbitration_options:
+          # The URL to the Redis server. Should match the URL in config/resque.yml.
+          :redis_url: redis://localhost:6379
+          # Always "mail_room:gitlab".
+          :namespace: mail_room:gitlab
     ```
 
     ```yaml
@@ -151,8 +161,10 @@ To set up a basic Postfix mail server with IMAP access on Ubuntu, follow [these
         :email: "gitlab-incoming@gmail.com"
         # Email account password
         :password: "[REDACTED]"
+
         # The name of the mailbox where incoming mail will end up. Usually "inbox".
         :name: "inbox"
+
         # Always "sidekiq".
         :delivery_method: sidekiq
         # Always true.
@@ -166,6 +178,14 @@ To set up a basic Postfix mail server with IMAP access on Ubuntu, follow [these
           :queue: incoming_email
           # Always "EmailReceiverWorker"
           :worker: EmailReceiverWorker
+
+        # Always "redis".
+        :arbitration_method: redis
+        :arbitration_options:
+          # The URL to the Redis server. Should match the URL in config/resque.yml.
+          :redis_url: redis://localhost:6379
+          # Always "mail_room:gitlab".
+          :namespace: mail_room:gitlab
     ```
 
 5. Edit the init script configuration at `/etc/default/gitlab` to enable `mail_room`:
@@ -228,8 +248,10 @@ To set up a basic Postfix mail server with IMAP access on Ubuntu, follow [these
         :email: "gitlab-incoming@gmail.com"
         # Email account password
         :password: "[REDACTED]"
+
         # The name of the mailbox where incoming mail will end up. Usually "inbox".
         :name: "inbox"
+
         # Always "sidekiq".
         :delivery_method: sidekiq
         # Always true.
@@ -243,6 +265,14 @@ To set up a basic Postfix mail server with IMAP access on Ubuntu, follow [these
           :queue: incoming_email
           # Always "EmailReceiverWorker"
           :worker: EmailReceiverWorker
+
+        # Always "redis".
+        :arbitration_method: redis
+        :arbitration_options:
+          # The URL to the Redis server. Should match the URL in config/resque.yml.
+          :redis_url: redis://localhost:6379
+          # Always "mail_room:gitlab".
+          :namespace: mail_room:gitlab
     ```
 
 4. Uncomment the `mail_room` line in your `Procfile`: