Move project services log to a separate file

app/controllers/admin/logs_controller.rb

@@ -12,7 +12,8 @@ class Admin::LogsController < Admin::ApplicationController
       Gitlab::GitLogger,
       Gitlab::EnvironmentLogger,
       Gitlab::SidekiqLogger,
-      Gitlab::RepositoryCheckLogger
+      Gitlab::RepositoryCheckLogger,
+      Gitlab::ProjectServiceLogger
     ]
   end
 end

app/models/concerns/project_services_loggable.rb

+module ProjectServicesLoggable
+  def log_info(message, params = {})
+    message = build_message(message, params)
+
+    logger.info(message)
+  end
+
+  def log_error(message, params = {})
+    message = build_message(message, params)
+
+    logger.error(message)
+  end
+
+  def build_message(message, params = {})
+    {
+      service_class: self.class.name,
+      project_id: project.id,
+      project_path: project.full_path,
+      message: message
+    }.merge(params)
+  end
+
+  def logger
+    Gitlab::ProjectServiceLogger
+  end
+end

app/models/project_services/asana_service.rb

@@ -101,7 +101,7 @@ http://app.asana.com/-/account_api'
           task.update(completed: true)
         end
       rescue => e
-        Rails.logger.error(e.message)
+        log_error(e.message)
         next
       end
     end

app/models/project_services/irker_service.rb

@@ -104,7 +104,7 @@ class IrkerService < Service
         new_recipient = URI.join(default_irc_uri, '/', recipient).to_s
         uri = consider_uri(URI.parse(new_recipient))
       rescue
-        Rails.logger.error("Unable to create a valid URL from #{default_irc_uri} and #{recipient}")
+        log_error("Unable to create a valid URL", default_irc_uri: default_irc_uri, recipient: recipient)
       end
     end
 

app/models/project_services/issue_tracker_service.rb

@@ -88,7 +88,7 @@ class IssueTrackerService < Service
     rescue Gitlab::HTTP::Error, Timeout::Error, SocketError, Errno::ECONNRESET, Errno::ECONNREFUSED, OpenSSL::SSL::SSLError => error
       message = "#{self.type} had an error when trying to connect to #{self.project_url}: #{error.message}"
     end
-    Rails.logger.info(message)
+    log_info(message)
     result
   end
 

app/models/project_services/jira_service.rb

@@ -205,7 +205,7 @@ class JiraService < IssueTrackerService
       begin
         issue.transitions.build.save!(transition: { id: transition_id })
       rescue => error
-        Rails.logger.info "#{self.class.name} Issue Transition failed message ERROR: #{client_url} - #{error.message}"
+        log_error("Issue transition failed", error: error.message, client_url: client_url)
         return false
       end
     end
@@ -257,9 +257,8 @@ class JiraService < IssueTrackerService
         new_remote_link.save!(remote_link_props)
       end
 
-      result_message = "#{self.class.name} SUCCESS: Successfully posted to #{client_url}."
-      Rails.logger.info(result_message)
-      result_message
+      log_info("Successfully posted", client_url: client_url)
+      "SUCCESS: Successfully posted to http://jira.example.net."
     end
   end
 
@@ -317,7 +316,7 @@ class JiraService < IssueTrackerService
 
   rescue Timeout::Error, Errno::EINVAL, Errno::ECONNRESET, Errno::ECONNREFUSED, URI::InvalidURIError, JIRA::HTTPError, OpenSSL::SSL::SSLError => e
     @error = e.message
-    Rails.logger.info "#{self.class.name} Send message ERROR: #{client_url} - #{@error}"
+    log_error("Error sending message", client_url: client_url, error: @error)
     nil
   end
 

app/models/service.rb

@@ -5,6 +5,7 @@
 class Service < ActiveRecord::Base
   include Sortable
   include Importable
+  include ProjectServicesLoggable
 
   serialize :properties, JSON # rubocop:disable Cop/ActiveRecordSerialize
 

changelogs/unreleased/issue_50488.yml

+---
+title: Move project services log to a separate file
+merge_request:
+author:
+type: other

doc/administration/logs.md

@@ -113,6 +113,19 @@ October 07, 2014 11:25: User "Claudie Hodkiewicz" (nasir_stehr@olson.co.uk)  was
 October 07, 2014 11:25: Project "project133" was removed
 ```
 
+## `integrations_json.log`
+
+This file lives in `/var/log/gitlab/gitlab-rails/integrations_json.log` for
+Omnibus GitLab packages or in `/home/git/gitlab/log/integrations_json.log` for
+installations from source.
+
+It contains information about [integrations](../user/project/integrations/project_services.md) activities such as JIRA, Asana and Irker services. It uses JSON format like the example below:  
+
+``` json
+{"severity":"ERROR","time":"2018-09-06T14:56:20.439Z","service_class":"JiraService","project_id":8,"project_path":"h5bp/html5-boilerplate","message":"Error sending message","client_url":"http://jira.gitlap.com:8080","error":"execution expired"}
+{"severity":"INFO","time":"2018-09-06T17:15:16.365Z","service_class":"JiraService","project_id":3,"project_path":"namespace2/project2","message":"Successfully posted","client_url":"http://jira.example.net"}
+```
+
 ## `githost.log`
 
 This file lives in `/var/log/gitlab/gitlab-rails/githost.log` for

lib/gitlab/project_service_logger.rb

+module Gitlab
+  class ProjectServiceLogger < Gitlab::JsonLogger
+    def self.file_name_noext
+      'integrations_json'
+    end
+  end
+end

spec/models/project_services/jira_service_spec.rb

@@ -231,12 +231,12 @@ describe JiraService do
       end
 
       it 'logs exception when transition id is not valid' do
-        allow(Rails.logger).to receive(:info)
-        WebMock.stub_request(:post, @transitions_url).with(basic_auth: %w(gitlab_jira_username gitlab_jira_password)).and_raise('Bad Request')
+        allow(@jira_service).to receive(:log_error)
+        WebMock.stub_request(:post, @transitions_url).with(basic_auth: %w(gitlab_jira_username gitlab_jira_password)).and_raise("Bad Request")
 
         @jira_service.close_issue(resource, ExternalIssue.new('JIRA-123', project))
 
-        expect(Rails.logger).to have_received(:info).with('JiraService Issue Transition failed message ERROR: http://jira.example.com - Bad Request')
+        expect(@jira_service).to have_received(:log_error).with("Issue transition failed", error: "Bad Request", client_url: "http://jira.example.com")
       end
 
       it 'calls the api with jira_issue_transition_id' do

spec/models/service_spec.rb

@@ -345,4 +345,31 @@ describe Service do
       expect(service.api_field_names).to eq(['safe_field'])
     end
   end
+
+  context 'logging' do
+    let(:project) { create(:project) }
+    let(:service) { create(:service, project: project) }
+    let(:test_message) { "test message" }
+    let(:arguments) do
+      {
+        service_class: service.class.name,
+        project_path: project.full_path,
+        project_id: project.id,
+        message: test_message,
+        additional_argument: 'some argument'
+      }
+    end
+
+    it 'logs info messages using json logger' do
+      expect(Gitlab::JsonLogger).to receive(:info).with(arguments)
+
+      service.log_info(test_message, additional_argument: 'some argument')
+    end
+
+    it 'logs error messages using json logger' do
+      expect(Gitlab::JsonLogger).to receive(:error).with(arguments)
+
+      service.log_error(test_message, additional_argument: 'some argument')
+    end
+  end
 end

spec/services/system_note_service_spec.rb

@@ -725,7 +725,7 @@ describe SystemNoteService do
     let(:jira_tracker)    { project.jira_service }
     let(:commit)          { project.commit }
     let(:comment_url)     { jira_api_comment_url(jira_issue.id) }
-    let(:success_message) { "JiraService SUCCESS: Successfully posted to http://jira.example.net." }
+    let(:success_message) { "SUCCESS: Successfully posted to http://jira.example.net." }
 
     before do
       stub_jira_urls(jira_issue.id)