Add alert metric image table and basic model

Changelog: added

db/migrate/20220120033115_create_alert_management_alert_metric_images.rb

+# frozen_string_literal: true
+
+class CreateAlertManagementAlertMetricImages < Gitlab::Database::Migration[1.0]
+  def up
+    create_table :alert_management_alert_metric_images do |t|
+      t.references :alert, null: false, index: true, foreign_key: { to_table: :alert_management_alerts, on_delete: :cascade }
+      t.timestamps_with_timezone
+      t.integer :file_store, limit: 2
+      t.text :file, limit: 255, null: false
+      t.text :url, limit: 255
+      t.text :url_text, limit: 128
+    end
+  end
+
+  def down
+    drop_table :alert_management_alert_metric_images, if_exists: true
+  end
+end

db/schema_migrations/20220120033115

+41b67585574f6309d8e32fe695e65fc43f15f6738db713c1a11e04558a5ec515
\ No newline at end of file

db/structure.sql

@@ -9917,6 +9917,29 @@ CREATE SEQUENCE alert_management_alert_assignees_id_seq
 
 ALTER SEQUENCE alert_management_alert_assignees_id_seq OWNED BY alert_management_alert_assignees.id;
 
+CREATE TABLE alert_management_alert_metric_images (
+    id bigint NOT NULL,
+    alert_id bigint NOT NULL,
+    created_at timestamp with time zone NOT NULL,
+    updated_at timestamp with time zone NOT NULL,
+    file_store smallint,
+    file text NOT NULL,
+    url text,
+    url_text text,
+    CONSTRAINT check_2587666252 CHECK ((char_length(url_text) <= 128)),
+    CONSTRAINT check_4d811d9007 CHECK ((char_length(url) <= 255)),
+    CONSTRAINT check_70fafae519 CHECK ((char_length(file) <= 255))
+);
+
+CREATE SEQUENCE alert_management_alert_metric_images_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+ALTER SEQUENCE alert_management_alert_metric_images_id_seq OWNED BY alert_management_alert_metric_images.id;
+
 CREATE TABLE alert_management_alert_user_mentions (
     id bigint NOT NULL,
     alert_management_alert_id bigint NOT NULL,
@@ -21495,6 +21518,8 @@ ALTER TABLE ONLY agent_project_authorizations ALTER COLUMN id SET DEFAULT nextva
 
 ALTER TABLE ONLY alert_management_alert_assignees ALTER COLUMN id SET DEFAULT nextval('alert_management_alert_assignees_id_seq'::regclass);
 
+ALTER TABLE ONLY alert_management_alert_metric_images ALTER COLUMN id SET DEFAULT nextval('alert_management_alert_metric_images_id_seq'::regclass);
+
 ALTER TABLE ONLY alert_management_alert_user_mentions ALTER COLUMN id SET DEFAULT nextval('alert_management_alert_user_mentions_id_seq'::regclass);
 
 ALTER TABLE ONLY alert_management_alerts ALTER COLUMN id SET DEFAULT nextval('alert_management_alerts_id_seq'::regclass);
@@ -22865,6 +22890,9 @@ ALTER TABLE ONLY agent_project_authorizations
 ALTER TABLE ONLY alert_management_alert_assignees
     ADD CONSTRAINT alert_management_alert_assignees_pkey PRIMARY KEY (id);
 
+ALTER TABLE ONLY alert_management_alert_metric_images
+    ADD CONSTRAINT alert_management_alert_metric_images_pkey PRIMARY KEY (id);
+
 ALTER TABLE ONLY alert_management_alert_user_mentions
     ADD CONSTRAINT alert_management_alert_user_mentions_pkey PRIMARY KEY (id);
 
@@ -25402,6 +25430,8 @@ CREATE INDEX index_alert_assignees_on_alert_id ON alert_management_alert_assigne
 
 CREATE UNIQUE INDEX index_alert_assignees_on_user_id_and_alert_id ON alert_management_alert_assignees USING btree (user_id, alert_id);
 
+CREATE INDEX index_alert_management_alert_metric_images_on_alert_id ON alert_management_alert_metric_images USING btree (alert_id);
+
 CREATE INDEX index_alert_management_alerts_on_domain ON alert_management_alerts USING btree (domain);
 
 CREATE INDEX index_alert_management_alerts_on_environment_id ON alert_management_alerts USING btree (environment_id) WHERE (environment_id IS NOT NULL);
@@ -30470,6 +30500,9 @@ ALTER TABLE ONLY container_repositories
 ALTER TABLE ONLY clusters_applications_jupyter
     ADD CONSTRAINT fk_rails_331f0aff78 FOREIGN KEY (oauth_application_id) REFERENCES oauth_applications(id) ON DELETE SET NULL;
 
+ALTER TABLE ONLY alert_management_alert_metric_images
+    ADD CONSTRAINT fk_rails_338e55b408 FOREIGN KEY (alert_id) REFERENCES alert_management_alerts(id) ON DELETE CASCADE;
+
 ALTER TABLE ONLY suggestions
     ADD CONSTRAINT fk_rails_33b03a535c FOREIGN KEY (note_id) REFERENCES notes(id) ON DELETE CASCADE;
 

ee/app/models/alert_management/metric_image.rb

+# frozen_string_literal: true
+
+module AlertManagement
+  class MetricImage < ApplicationRecord
+    self.table_name = 'alert_management_alert_metric_images'
+
+    belongs_to :alert, class_name: 'AlertManagement::Alert', foreign_key: 'alert_id', inverse_of: :metric_images
+
+    validates :file, presence: true
+    validates :url, length: { maximum: 255 }, public_url: { allow_blank: true }
+    validates :url_text, length: { maximum: 128 }
+  end
+end

ee/app/models/ee/alert_management/alert.rb

@@ -9,6 +9,7 @@ module EE
         include AfterCommitQueue
 
         has_many :pending_escalations, class_name: 'IncidentManagement::PendingEscalations::Alert', foreign_key: :alert_id, inverse_of: :alert
+        has_many :metric_images, class_name: '::AlertManagement::MetricImage'
 
         after_create do |alert|
           run_after_commit { alert.trigger_auto_rollback }

ee/app/models/license.rb

@@ -64,6 +64,7 @@ class License < ApplicationRecord
   EEP_FEATURES = EES_FEATURES + EEP_FEATURES_WITH_USAGE_PING + %i[
     adjourned_deletion_for_projects_and_groups
     admin_audit_log
+    alert_metric_upload
     auditor_user
     blocking_merge_requests
     board_assignee_lists

ee/spec/factories/alert_management/metric_images.rb

+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :alert_metric_image, class: 'AlertManagement::MetricImage' do
+    association :alert, factory: :alert_management_alert
+    url { generate(:url) }
+
+    trait :local do
+      file_store { ObjectStorage::Store::LOCAL }
+    end
+
+    after(:build) do |image|
+      image.file = fixture_file_upload('spec/fixtures/rails_sample.jpg', 'image/jpg')
+    end
+  end
+end

ee/spec/models/alert_management/metric_image_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe AlertManagement::MetricImage do
+  subject { build(:alert_metric_image) }
+
+  describe 'associations' do
+    it { is_expected.to belong_to(:alert) }
+  end
+
+  describe 'validations' do
+    it { is_expected.to be_valid }
+    it { is_expected.to validate_presence_of(:file) }
+    it { is_expected.to validate_length_of(:url).is_at_most(255) }
+    it { is_expected.to validate_length_of(:url_text).is_at_most(128) }
+  end
+end

lib/gitlab/database/gitlab_schemas.yml

@@ -4,6 +4,7 @@ agent_group_authorizations: :gitlab_main
 agent_project_authorizations: :gitlab_main
 alert_management_alert_assignees: :gitlab_main
 alert_management_alerts: :gitlab_main
+alert_management_alert_metric_images: :gitlab_main
 alert_management_alert_user_mentions: :gitlab_main
 alert_management_http_integrations: :gitlab_main
 allowed_email_domains: :gitlab_main