Log individual user usage of Slack service

This uses HLLRedisCounter to log usage
for individual users of slack service
each time a individual user triggers an action
it should increase the counter for this action

app/models/project_services/chat_notification_service.rb

@@ -97,9 +97,12 @@ class ChatNotificationService < Service
     opts[:channel] = channels if channels.present?
     opts[:username] = username if username
 
-    return false unless notify(message, opts)
+    if notify(message, opts)
+      log_usage(event_type, user_id_from_hook_data(data))
+      return true
+    end
 
-    true
+    false
   end
 
   def event_channel_names
@@ -120,6 +123,10 @@ class ChatNotificationService < Service
 
   private
 
+  def log_usage(_, _)
+    # Implement in child class
+  end
+
   def labels_to_be_notified_list
     return [] if labels_to_be_notified.nil?
 
@@ -136,6 +143,10 @@ class ChatNotificationService < Service
     (labels_to_be_notified_list & label_titles).any?
   end
 
+  def user_id_from_hook_data(data)
+    data.dig(:user, :id) || data[:user_id]
+  end
+
   # every notifier must implement this independently
   def notify(message, opts)
     raise NotImplementedError

app/models/project_services/slack_service.rb

@@ -2,6 +2,12 @@
 
 class SlackService < ChatNotificationService
   include SlackMattermost::Notifier
+  extend ::Gitlab::Utils::Override
+
+  SUPPORTED_EVENTS_FOR_USAGE_LOG = %w[
+    push issue confidential_issue merge_request note confidential_note
+    tag_push wiki_page deployment
+  ].freeze
 
   prop_accessor EVENT_CHANNEL['alert']
 
@@ -37,4 +43,15 @@ class SlackService < ChatNotificationService
 
     super
   end
+
+  override :log_usage
+  def log_usage(event, user_id)
+    return unless user_id
+
+    return unless SUPPORTED_EVENTS_FOR_USAGE_LOG.include?(event)
+
+    key = "i_ecosystem_slack_service_#{event}_notification"
+
+    Gitlab::UsageDataCounters::HLLRedisCounter.track_event(key, values: user_id)
+  end
 end

changelogs/unreleased/slack_service_usage_data.yml

+---
+title: Log individual user usage of Slack service
+merge_request: 54347
+author:
+type: changed

config/feature_flags/development/usage_data_track_ecosystem_slack_service.yml

+---
+name: usage_data_track_ecosystem_slack_service
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/322588
+milestone: '13.10'
+type: development
+group: group::ecosystem
+default_enabled: false

config/metrics/counts_28d/20210303150507_i_ecosystem_slack_service_issue_notification_monthly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_issue_notification_monthly
+description: Calculated unique users to trigger a Slack message by performing an action on an issue by month
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 28d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_28d/20210303150654_i_ecosystem_slack_service_push_notification_monthly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_push_notification_monthly
+description: Calculated unique users to trigger a Slack message by performing a Git push by month
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 28d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_28d/20210303150912_i_ecosystem_slack_service_deployment_notification_monthly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_deployment_notification_monthly
+description: Calculated unique users to trigger a Slack message by performing a deployment by month
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 28d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_28d/20210303151609_i_ecosystem_slack_service_wiki_page_notification_monthly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_wiki_page_notification_monthly
+description: Calculated unique users to trigger a Slack message by performing an action on a wiki page by month
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 28d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_28d/20210303151831_i_ecosystem_slack_service_merge_request_notification_monthly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_merge_request_notification_monthly
+description: Calculated unique users to trigger a Slack message by performing an action on a merge request by month
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 28d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_28d/20210303151946_i_ecosystem_slack_service_note_notification_monthly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_note_notification_monthly
+description: Calculated unique users to trigger a Slack message by creating a note by month
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 28d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_28d/20210303152049_i_ecosystem_slack_service_tag_push_notification_monthly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_tag_push_notification_monthly
+description: Calculated unique users to trigger a Slack message by performing a tag push by month
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 28d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_28d/20210303152144_i_ecosystem_slack_service_confidential_note_notification_monthly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_confidential_note_notification_monthly
+description: Calculated unique users to trigger a Slack message by creating a confidential note by month
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 28d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_28d/20210303152233_i_ecosystem_slack_service_confidential_issue_notification_monthly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_confidential_issue_notification_monthly
+description: Calculated unique users to trigger a Slack message by performing an action on a confidential issue by month
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 28d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_7d/20210302103002_i_ecosystem_slack_service_issue_notification_weekly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_issue_notification_weekly
+description: Calculated unique users to trigger a Slack message by performing an action on an issue by week
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 7d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_7d/20210302103629_i_ecosystem_slack_service_push_notification_weekly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_push_notification_weekly
+description: Calculated unique users to trigger a Slack message by performing a Git push by week
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 7d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_7d/20210302103755_i_ecosystem_slack_service_deployment_notification_weekly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_deployment_notification_weekly
+description: Calculated unique users to trigger a Slack message by performing a deployment by week
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 7d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_7d/20210302103907_i_ecosystem_slack_service_wiki_page_notification_weekly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_wiki_page_notification_weekly
+description: Calculated unique users to trigger a Slack message by performing an action on a wiki page by week
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 7d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_7d/20210302104007_i_ecosystem_slack_service_merge_request_notification_weekly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_merge_request_notification_weekly
+description: Calculated unique users to trigger a Slack message by performing an action on a merge request by week
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 7d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_7d/20210302104047_i_ecosystem_slack_service_note_notification_weekly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_note_notification_weekly
+description: Calculated unique users to trigger a Slack message by creating a note by week
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 7d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_7d/20210302104144_i_ecosystem_slack_service_tag_push_notification_weekly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_tag_push_notification_weekly
+description: Calculated unique users to trigger a Slack message by performing a tag push by week
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 7d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_7d/20210302104556_i_ecosystem_slack_service_confidential_note_notification_weekly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_confidential_note_notification_weekly
+description: Calculated unique users to trigger a Slack message by creating a confidential note by week
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 7d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_7d/20210302104814_i_ecosystem_slack_service_confidential_issue_notification_weekly.yml

+---
+key_path: redis_hll_counters.ecosystem.i_ecosystem_slack_service_confidential_issue_notification_weekly
+description: Calculated unique users to trigger a Slack message by performing an action on a confidential issue by week
+product_section: dev
+product_stage: create
+product_group: group::ecosystem
+product_category: integrations
+value_type: number
+status: implemented
+milestone: "13.10"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54347
+time_frame: 7d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

doc/development/usage_ping/dictionary.md

@@ -9524,6 +9524,222 @@ Status: `data_available`
 
 Tiers:
 
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_confidential_issue_notification_monthly`
+
+Calculated unique users to trigger a Slack message by performing an action on a confidential issue by month
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_28d/20210303152233_i_ecosystem_slack_service_confidential_issue_notification_monthly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_confidential_issue_notification_weekly`
+
+Calculated unique users to trigger a Slack message by performing an action on a confidential issue by week
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_7d/20210302104814_i_ecosystem_slack_service_confidential_issue_notification_weekly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_confidential_note_notification_monthly`
+
+Calculated unique users to trigger a Slack message by creating a confidential note by month
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_28d/20210303152144_i_ecosystem_slack_service_confidential_note_notification_monthly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_confidential_note_notification_weekly`
+
+Calculated unique users to trigger a Slack message by creating a confidential note by week
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_7d/20210302104556_i_ecosystem_slack_service_confidential_note_notification_weekly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_deployment_notification_monthly`
+
+Calculated unique users to trigger a Slack message by performing a deployment by month
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_28d/20210303150912_i_ecosystem_slack_service_deployment_notification_monthly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_deployment_notification_weekly`
+
+Calculated unique users to trigger a Slack message by performing a deployment by week
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_7d/20210302103755_i_ecosystem_slack_service_deployment_notification_weekly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_issue_notification_monthly`
+
+Calculated unique users to trigger a Slack message by performing an action on an issue by month
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_28d/20210303150507_i_ecosystem_slack_service_issue_notification_monthly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_issue_notification_weekly`
+
+Calculated unique users to trigger a Slack message by performing an action on an issue by week
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_7d/20210302103002_i_ecosystem_slack_service_issue_notification_weekly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_merge_request_notification_monthly`
+
+Calculated unique users to trigger a Slack message by performing an action on a merge request by month
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_28d/20210303151831_i_ecosystem_slack_service_merge_request_notification_monthly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_merge_request_notification_weekly`
+
+Calculated unique users to trigger a Slack message by performing an action on a merge request by week
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_7d/20210302104007_i_ecosystem_slack_service_merge_request_notification_weekly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_note_notification_monthly`
+
+Calculated unique users to trigger a Slack message by creating a note by month
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_28d/20210303151946_i_ecosystem_slack_service_note_notification_monthly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_note_notification_weekly`
+
+Calculated unique users to trigger a Slack message by creating a note by week
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_7d/20210302104047_i_ecosystem_slack_service_note_notification_weekly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_push_notification_monthly`
+
+Calculated unique users to trigger a Slack message by performing a Git push by month
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_28d/20210303150654_i_ecosystem_slack_service_push_notification_monthly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_push_notification_weekly`
+
+Calculated unique users to trigger a Slack message by performing a Git push by week
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_7d/20210302103629_i_ecosystem_slack_service_push_notification_weekly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_tag_push_notification_monthly`
+
+Calculated unique users to trigger a Slack message by performing a tag push by month
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_28d/20210303152049_i_ecosystem_slack_service_tag_push_notification_monthly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_tag_push_notification_weekly`
+
+Calculated unique users to trigger a Slack message by performing a tag push by week
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_7d/20210302104144_i_ecosystem_slack_service_tag_push_notification_weekly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_wiki_page_notification_monthly`
+
+Calculated unique users to trigger a Slack message by performing an action on a wiki page by month
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_28d/20210303151609_i_ecosystem_slack_service_wiki_page_notification_monthly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.ecosystem.i_ecosystem_slack_service_wiki_page_notification_weekly`
+
+Calculated unique users to trigger a Slack message by performing an action on a wiki page by week
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_7d/20210302103907_i_ecosystem_slack_service_wiki_page_notification_weekly.yml)
+
+Group: `group::ecosystem`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
 ### `redis_hll_counters.ide_edit.g_edit_by_sfe_monthly`
 
 Missing description

lib/gitlab/usage_data_counters/known_events/ecosystem.yml

@@ -20,3 +20,49 @@
   redis_slot: ecosystem
   aggregation: weekly
   feature_flag: usage_data_track_ecosystem_jira_service
+- name: i_ecosystem_slack_service_issue_notification
+  category: ecosystem
+  redis_slot: ecosystem
+  aggregation: weekly
+  feature_flag: usage_data_track_ecosystem_slack_service
+- name: i_ecosystem_slack_service_push_notification
+  category: ecosystem
+  redis_slot: ecosystem
+  aggregation: weekly
+  feature_flag: usage_data_track_ecosystem_slack_service
+- name: i_ecosystem_slack_service_deployment_notification
+  category: ecosystem
+  redis_slot: ecosystem
+  aggregation: weekly
+  feature_flag: usage_data_track_ecosystem_slack_service
+- name: i_ecosystem_slack_service_wiki_page_notification
+  category: ecosystem
+  redis_slot: ecosystem
+  aggregation: weekly
+  feature_flag: usage_data_track_ecosystem_slack_service
+- name: i_ecosystem_slack_service_merge_request_notification
+  category: ecosystem
+  redis_slot: ecosystem
+  aggregation: weekly
+  feature_flag: usage_data_track_ecosystem_slack_service
+- name: i_ecosystem_slack_service_note_notification
+  category: ecosystem
+  redis_slot: ecosystem
+  aggregation: weekly
+  feature_flag: usage_data_track_ecosystem_slack_service
+- name: i_ecosystem_slack_service_tag_push_notification
+  category: ecosystem
+  redis_slot: ecosystem
+  aggregation: weekly
+  feature_flag: usage_data_track_ecosystem_slack_service
+- name: i_ecosystem_slack_service_confidential_note_notification
+  category: ecosystem
+  redis_slot: ecosystem
+  aggregation: weekly
+  feature_flag: usage_data_track_ecosystem_slack_service
+- name: i_ecosystem_slack_service_confidential_issue_notification
+  category: ecosystem
+  redis_slot: ecosystem
+  aggregation: weekly
+  feature_flag: usage_data_track_ecosystem_slack_service
+

spec/models/project_services/slack_service_spec.rb

@@ -4,4 +4,116 @@ require 'spec_helper'
 
 RSpec.describe SlackService do
   it_behaves_like "slack or mattermost notifications", 'Slack'
+
+  describe '#execute' do
+    before do
+      stub_request(:post, "https://slack.service.url/")
+    end
+
+    let_it_be(:slack_service) { create(:slack_service, branches_to_be_notified: 'all') }
+
+    it 'uses only known events', :aggregate_failures do
+      described_class::SUPPORTED_EVENTS_FOR_USAGE_LOG.each do |action|
+        expect(Gitlab::UsageDataCounters::HLLRedisCounter.known_event?("i_ecosystem_slack_service_#{action}_notification")).to be true
+      end
+    end
+
+    context 'hook data includes a user object' do
+      let_it_be(:user) { create_default(:user) }
+      let_it_be(:project) { create_default(:project, :repository, :wiki_repo) }
+
+      shared_examples 'increases the usage data counter' do |event_name|
+        it 'increases the usage data counter' do
+          expect(Gitlab::UsageDataCounters::HLLRedisCounter).to receive(:track_event).with(event_name, values: user.id).and_call_original
+
+          slack_service.execute(data)
+        end
+      end
+
+      context 'event is not supported for usage log' do
+        let_it_be(:pipeline) { create(:ci_pipeline) }
+        let(:data) { Gitlab::DataBuilder::Pipeline.build(pipeline) }
+
+        it 'does not increase the usage data counter' do
+          expect(Gitlab::UsageDataCounters::HLLRedisCounter).not_to receive(:track_event).with('i_ecosystem_slack_service_pipeline_notification', values: user.id)
+
+          slack_service.execute(data)
+        end
+      end
+
+      context 'issue notification' do
+        let_it_be(:issue) { create(:issue) }
+        let(:data) { issue.to_hook_data(user) }
+
+        it_behaves_like 'increases the usage data counter', 'i_ecosystem_slack_service_issue_notification'
+      end
+
+      context 'push notification' do
+        let(:data) { Gitlab::DataBuilder::Push.build_sample(project, user) }
+
+        it_behaves_like 'increases the usage data counter', 'i_ecosystem_slack_service_push_notification'
+      end
+
+      context 'deployment notification' do
+        let_it_be(:deployment) { create(:deployment, user: user) }
+        let(:data) { Gitlab::DataBuilder::Deployment.build(deployment) }
+
+        it_behaves_like 'increases the usage data counter', 'i_ecosystem_slack_service_deployment_notification'
+      end
+
+      context 'wiki_page notification' do
+        let_it_be(:wiki_page) { create(:wiki_page, wiki: project.wiki, message: 'user created page: Awesome wiki_page') }
+        let(:data) { Gitlab::DataBuilder::WikiPage.build(wiki_page, user, 'create') }
+
+        it_behaves_like 'increases the usage data counter', 'i_ecosystem_slack_service_wiki_page_notification'
+      end
+
+      context 'merge_request notification' do
+        let_it_be(:merge_request) { create(:merge_request) }
+        let(:data) { merge_request.to_hook_data(user) }
+
+        it_behaves_like 'increases the usage data counter', 'i_ecosystem_slack_service_merge_request_notification'
+      end
+
+      context 'note notification' do
+        let_it_be(:issue_note) { create(:note_on_issue, note: 'issue note') }
+        let(:data) { Gitlab::DataBuilder::Note.build(issue_note, user) }
+
+        it_behaves_like 'increases the usage data counter', 'i_ecosystem_slack_service_note_notification'
+      end
+
+      context 'tag_push notification' do
+        let(:oldrev) { Gitlab::Git::BLANK_SHA }
+        let(:newrev) { '8a2a6eb295bb170b34c24c76c49ed0e9b2eaf34b' } # gitlab-test: git rev-parse refs/tags/v1.1.0
+        let(:ref) { 'refs/tags/v1.1.0' }
+        let(:data) { Git::TagHooksService.new(project, user, change: { oldrev: oldrev, newrev: newrev, ref: ref }).send(:push_data) }
+
+        it_behaves_like 'increases the usage data counter', 'i_ecosystem_slack_service_tag_push_notification'
+      end
+
+      context 'confidential note notification' do
+        let_it_be(:confidential_issue_note) { create(:note_on_issue, note: 'issue note', confidential: true) }
+        let(:data) { Gitlab::DataBuilder::Note.build(confidential_issue_note, user) }
+
+        it_behaves_like 'increases the usage data counter', 'i_ecosystem_slack_service_confidential_note_notification'
+      end
+
+      context 'confidential issue notification' do
+        let_it_be(:issue) { create(:issue, confidential: true) }
+        let(:data) { issue.to_hook_data(user) }
+
+        it_behaves_like 'increases the usage data counter', 'i_ecosystem_slack_service_confidential_issue_notification'
+      end
+    end
+
+    context 'hook data does not include a user' do
+      let(:data) { Gitlab::DataBuilder::Pipeline.build(create(:ci_pipeline)) }
+
+      it 'does not increase the usage data counter' do
+        expect(Gitlab::UsageDataCounters::HLLRedisCounter).not_to receive(:track_event)
+
+        slack_service.execute(data)
+      end
+    end
+  end
 end