Merge branch '33184-associate-self-managed-prometheus-alerts-and-issues' into 'master'

Associate self-managed Prometheus Alerts and Issues

Closes #33184

See merge request gitlab-org/gitlab!18046

db/migrate/20191003015155_add_self_managed_prometheus_alerts.rb

+# frozen_string_literal: true
+
+class AddSelfManagedPrometheusAlerts < ActiveRecord::Migration[5.2]
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  def change
+    create_table :self_managed_prometheus_alert_events do |t|
+      t.references :project, index: false, foreign_key: { on_delete: :cascade }, null: false
+      t.references :environment, index: true, foreign_key: { on_delete: :cascade }
+      t.datetime_with_timezone :started_at, null: false
+      t.datetime_with_timezone :ended_at
+
+      t.integer :status, null: false, limit: 2
+      t.string :title, null: false, limit: 255
+      t.string :query_expression, limit: 255
+      t.string :payload_key, null: false, limit: 255
+      t.index [:project_id, :payload_key], unique: true, name: 'idx_project_id_payload_key_self_managed_prometheus_alert_events'
+    end
+  end
+end

db/migrate/20191016220135_add_join_table_for_self_managed_prometheus_alert_issues.rb

+# frozen_string_literal: true
+
+class AddJoinTableForSelfManagedPrometheusAlertIssues < ActiveRecord::Migration[5.2]
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  def change
+    # Join table to Issues
+    create_table :issues_self_managed_prometheus_alert_events, id: false do |t|
+      t.references :issue, null: false,
+        index: false, # Uses the index below
+        foreign_key: { on_delete: :cascade }
+      t.references :self_managed_prometheus_alert_event, null: false,
+        index: { name: 'issue_id_issues_self_managed_rometheus_alert_events_index' },
+        foreign_key: { on_delete: :cascade }
+
+      t.timestamps_with_timezone
+      t.index [:issue_id, :self_managed_prometheus_alert_event_id],
+        unique: true, name: 'issue_id_self_managed_prometheus_alert_event_id_index'
+    end
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2019_10_16_072826) do
+ActiveRecord::Schema.define(version: 2019_10_16_220135) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_trgm"
@@ -1945,6 +1945,15 @@ ActiveRecord::Schema.define(version: 2019_10_16_072826) do
     t.index ["prometheus_alert_event_id"], name: "issue_id_issues_prometheus_alert_events_index"
   end
 
+  create_table "issues_self_managed_prometheus_alert_events", id: false, force: :cascade do |t|
+    t.bigint "issue_id", null: false
+    t.bigint "self_managed_prometheus_alert_event_id", null: false
+    t.datetime_with_timezone "created_at", null: false
+    t.datetime_with_timezone "updated_at", null: false
+    t.index ["issue_id", "self_managed_prometheus_alert_event_id"], name: "issue_id_self_managed_prometheus_alert_event_id_index", unique: true
+    t.index ["self_managed_prometheus_alert_event_id"], name: "issue_id_issues_self_managed_rometheus_alert_events_index"
+  end
+
   create_table "jira_connect_installations", force: :cascade do |t|
     t.string "client_key"
     t.string "encrypted_shared_secret"
@@ -3318,6 +3327,19 @@ ActiveRecord::Schema.define(version: 2019_10_16_072826) do
     t.index ["group_id", "token_encrypted"], name: "index_scim_oauth_access_tokens_on_group_id_and_token_encrypted", unique: true
   end
 
+  create_table "self_managed_prometheus_alert_events", force: :cascade do |t|
+    t.bigint "project_id", null: false
+    t.bigint "environment_id"
+    t.datetime_with_timezone "started_at", null: false
+    t.datetime_with_timezone "ended_at"
+    t.integer "status", limit: 2, null: false
+    t.string "title", limit: 255, null: false
+    t.string "query_expression", limit: 255
+    t.string "payload_key", limit: 255, null: false
+    t.index ["environment_id"], name: "index_self_managed_prometheus_alert_events_on_environment_id"
+    t.index ["project_id", "payload_key"], name: "idx_project_id_payload_key_self_managed_prometheus_alert_events", unique: true
+  end
+
   create_table "sent_notifications", id: :serial, force: :cascade do |t|
     t.integer "project_id"
     t.integer "noteable_id"
@@ -4150,6 +4172,8 @@ ActiveRecord::Schema.define(version: 2019_10_16_072826) do
   add_foreign_key "issues", "users", column: "updated_by_id", name: "fk_ffed080f01", on_delete: :nullify
   add_foreign_key "issues_prometheus_alert_events", "issues", on_delete: :cascade
   add_foreign_key "issues_prometheus_alert_events", "prometheus_alert_events", on_delete: :cascade
+  add_foreign_key "issues_self_managed_prometheus_alert_events", "issues", on_delete: :cascade
+  add_foreign_key "issues_self_managed_prometheus_alert_events", "self_managed_prometheus_alert_events", on_delete: :cascade
   add_foreign_key "jira_connect_subscriptions", "jira_connect_installations", on_delete: :cascade
   add_foreign_key "jira_connect_subscriptions", "namespaces", on_delete: :cascade
   add_foreign_key "jira_tracker_data", "services", on_delete: :cascade
@@ -4289,6 +4313,8 @@ ActiveRecord::Schema.define(version: 2019_10_16_072826) do
   add_foreign_key "reviews", "users", column: "author_id", on_delete: :nullify
   add_foreign_key "saml_providers", "namespaces", column: "group_id", on_delete: :cascade
   add_foreign_key "scim_oauth_access_tokens", "namespaces", column: "group_id", on_delete: :cascade
+  add_foreign_key "self_managed_prometheus_alert_events", "environments", on_delete: :cascade
+  add_foreign_key "self_managed_prometheus_alert_events", "projects", on_delete: :cascade
   add_foreign_key "services", "projects", name: "fk_71cce407f9", on_delete: :cascade
   add_foreign_key "slack_integrations", "services", on_delete: :cascade
   add_foreign_key "smartcard_identities", "users", on_delete: :cascade

ee/app/models/concerns/alert_event_lifecycle.rb

+# frozen_string_literal: true
+
+module AlertEventLifecycle
+  extend ActiveSupport::Concern
+
+  included do
+    validates :started_at, presence: true
+    validates :status, presence: true
+
+    state_machine :status, initial: :none do
+      state :none, value: nil
+
+      state :firing, value: 0 do
+        validates :payload_key, presence: true
+        validates :ended_at, absence: true
+      end
+
+      state :resolved, value: 1 do
+        validates :ended_at, presence: true
+      end
+
+      event :fire do
+        transition none: :firing
+      end
+
+      event :resolve do
+        transition firing: :resolved
+      end
+
+      before_transition to: :firing do |alert_event, transition|
+        started_at = transition.args.first
+        alert_event.started_at = started_at
+      end
+
+      before_transition to: :resolved do |alert_event, transition|
+        ended_at = transition.args.first
+        alert_event.ended_at = ended_at || Time.current
+      end
+    end
+
+    scope :firing, -> { where(status: status_value_for(:firing)) }
+    scope :resolved, -> { where(status: status_value_for(:resolved)) }
+
+    scope :count_by_project_id, -> { group(:project_id).count }
+
+    def self.status_value_for(name)
+      state_machines[:status].states[name].value
+    end
+  end
+end

ee/app/models/ee/issue.rb

@@ -27,6 +27,7 @@ module EE
         end
       end
 
+      has_and_belongs_to_many :self_managed_prometheus_alert_events, join_table: :issues_self_managed_prometheus_alert_events
       has_and_belongs_to_many :prometheus_alert_events, join_table: :issues_prometheus_alert_events
       has_many :prometheus_alerts, through: :prometheus_alert_events
 

ee/app/models/ee/project.rb

@@ -81,6 +81,7 @@ module EE
 
       has_many :prometheus_alerts, inverse_of: :project
       has_many :prometheus_alert_events, inverse_of: :project
+      has_many :self_managed_prometheus_alert_events, inverse_of: :project
 
       has_many :operations_feature_flags, class_name: 'Operations::FeatureFlag'
       has_one :operations_feature_flags_client, class_name: 'Operations::FeatureFlagsClient'

ee/app/models/prometheus_alert_event.rb

 # frozen_string_literal: true
 
 class PrometheusAlertEvent < ApplicationRecord
+  include AlertEventLifecycle
+
   belongs_to :project, required: true, validate: true, inverse_of: :prometheus_alert_events
   belongs_to :prometheus_alert, required: true, validate: true, inverse_of: :prometheus_alert_events
   has_and_belongs_to_many :related_issues, class_name: 'Issue', join_table: :issues_prometheus_alert_events
 
   validates :payload_key, uniqueness: { scope: :prometheus_alert_id }
 
-  validates :started_at, presence: true
-  validates :status, presence: true
-
   delegate :title, :prometheus_metric_id, to: :prometheus_alert
 
-  state_machine :status, initial: :none do
-    state :none, value: nil
-
-    state :firing, value: 0 do
-      validates :payload_key, presence: true
-      validates :ended_at, absence: true
-    end
-
-    state :resolved, value: 1 do
-      validates :payload_key, absence: true
-      validates :ended_at, presence: true
-    end
-
-    event :fire do
-      transition none: :firing
-    end
-
-    event :resolve do
-      transition firing: :resolved
-    end
-
-    before_transition to: :firing do |alert_event, transition|
-      started_at = transition.args.first
-      alert_event.started_at = started_at
-    end
-
-    before_transition to: :resolved do |alert_event, transition|
-      ended_at = transition.args.first
-      alert_event.payload_key = nil
-      alert_event.ended_at = ended_at
-    end
-  end
-
-  scope :firing, -> { where(status: status_value_for(:firing)) }
-  scope :resolved, -> { where(status: status_value_for(:resolved)) }
-
   scope :for_environment, -> (environment) do
     joins(:prometheus_alert).where(prometheus_alerts: { environment_id: environment })
   end
 
-  scope :count_by_project_id, -> { group(:project_id).count }
   scope :with_prometheus_alert, -> { includes(:prometheus_alert) }
 
   def self.last_by_project_id

ee/app/models/self_managed_prometheus_alert_event.rb

+# frozen_string_literal: true
+
+class SelfManagedPrometheusAlertEvent < ApplicationRecord
+  include AlertEventLifecycle
+
+  belongs_to :project, validate: true, inverse_of: :self_managed_prometheus_alert_events
+  belongs_to :environment, validate: true
+  has_and_belongs_to_many :related_issues, class_name: 'Issue', join_table: :issues_self_managed_prometheus_alert_events
+
+  validates :payload_key, uniqueness: { scope: :project_id }
+
+  def self.find_or_initialize_by_payload_key(project, payload_key)
+    find_or_initialize_by(project: project, payload_key: payload_key) do |event|
+      yield event if block_given?
+    end
+  end
+
+  def self.payload_key_for(started_at, alert_name, query_expression)
+    plain = [started_at, alert_name, query_expression].join('/')
+
+    Digest::SHA1.hexdigest(plain)
+  end
+end

ee/app/services/projects/prometheus/alerts/create_events_service.rb

@@ -16,32 +16,24 @@ module Projects
         end
 
         def create_event(payload)
-          return unless payload.respond_to?(:dig)
+          parsed_alert = Gitlab::Alerting::Alert.new(project: project, payload: payload)
 
-          status = payload.dig('status')
-          return unless status
+          return unless parsed_alert.valid?
 
-          started_at = validate_date(payload['startsAt'])
-          return unless started_at
+          event = if parsed_alert.gitlab_managed?
+                    build_managed_prometheus_alert_event(parsed_alert)
+                  else
+                    build_self_managed_prometheus_alert_event(parsed_alert)
+                  end
 
-          ended_at = validate_date(payload['endsAt'])
-          return unless ended_at
-
-          gitlab_alert_id = payload.dig('labels', 'gitlab_alert_id')
-          return unless gitlab_alert_id
-
-          alert = find_alert(gitlab_alert_id)
-          return unless alert
-
-          payload_key = PrometheusAlertEvent.payload_key_for(gitlab_alert_id, started_at)
-          event = PrometheusAlertEvent.find_or_initialize_by_payload_key(project, alert, payload_key)
-
-          result = case status
-                   when 'firing'
-                     event.fire(started_at)
-                   when 'resolved'
-                     event.resolve(ended_at)
-                   end
+          if event
+            result = case parsed_alert.status
+                     when 'firing'
+                       event.fire(parsed_alert.starts_at)
+                     when 'resolved'
+                       event.resolve(parsed_alert.ends_at)
+                     end
+          end
 
           event if result
         end
@@ -57,12 +49,24 @@ module Projects
             .first
         end
 
-        def validate_date(date)
-          return unless date
+        def build_managed_prometheus_alert_event(parsed_alert)
+          alert = find_alert(parsed_alert.metric_id)
+
+          return if alert.blank?
+
+          payload_key = PrometheusAlertEvent.payload_key_for(parsed_alert.metric_id, parsed_alert.starts_at_raw)
+
+          PrometheusAlertEvent.find_or_initialize_by_payload_key(parsed_alert.project, alert, payload_key)
+        end
+
+        def build_self_managed_prometheus_alert_event(parsed_alert)
+          payload_key = SelfManagedPrometheusAlertEvent.payload_key_for(parsed_alert.starts_at_raw, parsed_alert.title, parsed_alert.full_query)
 
-          Time.rfc3339(date)
-          date
-        rescue ArgumentError
+          SelfManagedPrometheusAlertEvent.find_or_initialize_by_payload_key(parsed_alert.project, payload_key) do |event|
+            event.environment      = parsed_alert.environment
+            event.title            = parsed_alert.title
+            event.query_expression = parsed_alert.full_query
+          end
         end
       end
     end

ee/app/workers/incident_management/process_prometheus_alert_worker.rb

@@ -10,7 +10,8 @@ module IncidentManagement
       project = find_project(project_id)
       return unless project
 
-      event = find_prometheus_alert_event(alert_hash)
+      parsed_alert = Gitlab::Alerting::Alert.new(project: project, payload: alert_hash)
+      event = find_prometheus_alert_event(parsed_alert)
       issue = create_issue(project, alert_hash)
 
       relate_issue_to_event(event, issue)
@@ -22,14 +23,26 @@ module IncidentManagement
       Project.find_by_id(project_id)
     end
 
-    def find_prometheus_alert_event(alert_hash)
-      started_at = alert_hash.dig('startsAt')
-      gitlab_alert_id = alert_hash.dig('labels', 'gitlab_alert_id')
-      payload_key = PrometheusAlertEvent.payload_key_for(gitlab_alert_id, started_at)
+    def find_prometheus_alert_event(alert)
+      if alert.gitlab_managed?
+        find_gitlab_managed_event(alert)
+      else
+        find_self_managed_event(alert)
+      end
+    end
+
+    def find_gitlab_managed_event(alert)
+      payload_key = PrometheusAlertEvent.payload_key_for(alert.metric_id, alert.starts_at_raw)
 
       PrometheusAlertEvent.find_by_payload_key(payload_key)
     end
 
+    def find_self_managed_event(alert)
+      payload_key = SelfManagedPrometheusAlertEvent.payload_key_for(alert.starts_at_raw, alert.title, alert.full_query)
+
+      SelfManagedPrometheusAlertEvent.find_by_payload_key(payload_key)
+    end
+
     def create_issue(project, alert)
       IncidentManagement::CreateIssueService
         .new(project, alert)

ee/changelogs/unreleased/33184-associate-self-managed-prometheus-alerts-and-issues.yml

+---
+title: Associate self-managed Prometheus Alerts and Issues
+merge_request: 18046
+author:
+type: added

ee/lib/gitlab/alerting/alert.rb

@@ -15,6 +15,12 @@ module Gitlab
         end
       end
 
+      def metric_id
+        strong_memoize(:metric_id) do
+          payload&.dig('labels', 'gitlab_alert_id')
+        end
+      end
+
       def title
         strong_memoize(:title) do
           gitlab_alert&.title || parse_title_from_payload
@@ -28,7 +34,9 @@ module Gitlab
       end
 
       def environment
-        gitlab_alert&.environment
+        strong_memoize(:environment) do
+          gitlab_alert&.environment || parse_environment_from_payload
+        end
       end
 
       def annotations
@@ -43,6 +51,18 @@ module Gitlab
         end
       end
 
+      def starts_at_raw
+        strong_memoize(:starts_at_raw) do
+          payload&.dig('startsAt')
+        end
+      end
+
+      def ends_at
+        strong_memoize(:ends_at) do
+          parse_datetime_from_payload('endsAt')
+        end
+      end
+
       def full_query
         strong_memoize(:full_query) do
           gitlab_alert&.full_query || parse_expr_from_payload
@@ -55,8 +75,18 @@ module Gitlab
         end
       end
 
+      def status
+        strong_memoize(:status) do
+          payload&.dig('status')
+        end
+      end
+
+      def gitlab_managed?
+        metric_id.present?
+      end
+
       def valid?
-        project && title && starts_at
+        payload.respond_to?(:dig) && project && title && starts_at
       end
 
       def present
@@ -65,8 +95,17 @@ module Gitlab
 
       private
 
+      def parse_environment_from_payload
+        environment_name = payload&.dig('labels', 'gitlab_environment_name')
+
+        return unless environment_name
+
+        EnvironmentsFinder.new(project, nil, { name: environment_name })
+          .find
+          &.first
+      end
+
       def parse_gitlab_alert_from_payload
-        metric_id = payload&.dig('labels', 'gitlab_alert_id')
         return unless metric_id
 
         Projects::Prometheus::AlertsFinder

ee/spec/factories/self_managed_prometheus_alert_event.rb

+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :self_managed_prometheus_alert_event do
+    project
+    sequence(:payload_key) { |n| "hash payload key #{n}" }
+    status { SelfManagedPrometheusAlertEvent.status_value_for(:firing) }
+    title { 'alert' }
+    query_expression { 'vector(2)' }
+    started_at { Time.now }
+
+    trait :resolved do
+      status { SelfManagedPrometheusAlertEvent.status_value_for(:resolved) }
+      ended_at { Time.now }
+      payload_key { nil }
+    end
+
+    trait :none do
+      status { nil }
+      started_at { nil }
+    end
+  end
+end

ee/spec/models/issue_spec.rb

@@ -46,6 +46,7 @@ describe Issue do
     it { is_expected.to have_many(:designs) }
     it { is_expected.to have_many(:design_versions) }
     it { is_expected.to have_and_belong_to_many(:prometheus_alert_events) }
+    it { is_expected.to have_and_belong_to_many(:self_managed_prometheus_alert_events) }
     it { is_expected.to have_many(:prometheus_alerts) }
 
     describe 'versions.most_recent' do

ee/spec/models/prometheus_alert_event_spec.rb

@@ -85,7 +85,6 @@ describe PrometheusAlertEvent do
           expect(result).to eq(true)
           expect(subject).to be_resolved
           expect(subject.ended_at).to be_like_time(ended_at)
-          expect(subject.payload_key).to be_nil
         end
       end
 

ee/spec/services/projects/prometheus/alerts/create_events_service_spec.rb

@@ -32,6 +32,18 @@ describe Projects::Prometheus::Alerts::CreateEventsService do
     end
   end
 
+  shared_examples 'self managed events persisted' do
+    subject { service.execute }
+
+    it 'returns created events' do
+      expect(subject).not_to be_empty
+    end
+
+    it 'does change self managed event count' do
+      expect { subject }.to change { SelfManagedPrometheusAlertEvent.count }
+    end
+  end
+
   context 'with valid alerts_payload' do
     let!(:alert) { create(:prometheus_alert, prometheus_metric: metric, project: project) }
 
@@ -221,14 +233,14 @@ describe Projects::Prometheus::Alerts::CreateEventsService do
       end
 
       describe '`ended_at`' do
-        context 'is missing' do
-          let(:alerts_payload) { { 'alerts' => [alert_payload(ended_at: nil)] } }
+        context 'is missing and status is resolved' do
+          let(:alerts_payload) { { 'alerts' => [alert_payload(ended_at: nil, status: 'resolved')] } }
 
           it_behaves_like 'no events persisted'
         end
 
-        context 'is invalid' do
-          let(:alerts_payload) { { 'alerts' => [alert_payload(ended_at: 'invalid date')] } }
+        context 'is invalid and status is resolved' do
+          let(:alerts_payload) { { 'alerts' => [alert_payload(ended_at: 'invalid date', status: 'resolved')] } }
 
           it_behaves_like 'no events persisted'
         end
@@ -242,6 +254,25 @@ describe Projects::Prometheus::Alerts::CreateEventsService do
             it_behaves_like 'no events persisted'
           end
 
+          context 'is missing but title is given' do
+            let(:alerts_payload) { { 'alerts' => [alert_payload(gitlab_alert_id: nil, title: 'alert')] } }
+
+            it_behaves_like 'self managed events persisted'
+          end
+
+          context 'is missing and environment name is given' do
+            let(:environment) { create(:environment, project: project) }
+            let(:alerts_payload) { { 'alerts' => [alert_payload(gitlab_alert_id: nil, title: 'alert', environment: environment.name)] } }
+
+            it_behaves_like 'self managed events persisted'
+
+            it 'associates the environment to the alert event' do
+              service.execute
+
+              expect(SelfManagedPrometheusAlertEvent.last.environment).to eq environment
+            end
+          end
+
           context 'is invalid' do
             let(:alerts_payload) { { 'alerts' => [alert_payload(gitlab_alert_id: '-1')] } }
 
@@ -254,13 +285,16 @@ describe Projects::Prometheus::Alerts::CreateEventsService do
 
   private
 
-  def alert_payload(status: 'firing', started_at: Time.now, ended_at: Time.now, gitlab_alert_id: alert.prometheus_metric_id)
+  def alert_payload(status: 'firing', started_at: Time.now, ended_at: Time.now, gitlab_alert_id: alert.prometheus_metric_id, title: nil, environment: nil)
     payload = {}
 
     payload['status'] = status if status
     payload['startsAt'] = utc_rfc3339(started_at) if started_at
     payload['endsAt'] = utc_rfc3339(ended_at) if ended_at
-    payload['labels'] = { 'gitlab_alert_id' => gitlab_alert_id.to_s } if gitlab_alert_id
+    payload['labels'] = {}
+    payload['labels']['gitlab_alert_id'] = gitlab_alert_id.to_s if gitlab_alert_id
+    payload['labels']['alertname'] = title if title
+    payload['labels']['gitlab_environment_name'] = environment if environment
 
     payload
   end

ee/spec/workers/incident_management/process_prometheus_alert_worker_spec.rb

@@ -29,7 +29,9 @@ describe IncidentManagement::ProcessPrometheusAlertWorker do
 
     it 'relates issue to an event' do
       expect { subject.perform(project.id, alert_params) }
-        .to change(prometheus_alert.related_issues, :count).from(0).to(1)
+        .to change(prometheus_alert.related_issues, :count)
+        .from(0)
+        .to(1)
     end
 
     context 'when project could not be found' do
@@ -56,7 +58,7 @@ describe IncidentManagement::ProcessPrometheusAlertWorker do
 
       it 'does not relate issue to an event' do
         expect { subject.perform(project.id, alert_params) }
-          .not_to change(Issue, :count)
+          .not_to change(prometheus_alert.related_issues, :count)
       end
     end
 
@@ -72,5 +74,55 @@ describe IncidentManagement::ProcessPrometheusAlertWorker do
           .not_to change(prometheus_alert.related_issues, :count)
       end
     end
+
+    context 'self-managed alert' do
+      let(:alert_name) { 'alert' }
+      let(:starts_at) { Time.now.rfc3339 }
+
+      let!(:prometheus_alert) do
+        payload_key = SelfManagedPrometheusAlertEvent.payload_key_for(starts_at, alert_name, 'vector(1)')
+        create(:self_managed_prometheus_alert_event, project: project, payload_key: payload_key)
+      end
+
+      let(:alert_params) do
+        {
+          startsAt: starts_at,
+          generatorURL: 'http://localhost:9090/graph?g0.expr=vector%281%29&g0.tab=1',
+          labels: {
+            alertname: alert_name
+          }
+        }.with_indifferent_access
+      end
+
+      it 'creates an issue' do
+        expect { subject.perform(project.id, alert_params) }
+          .to change(Issue, :count)
+          .by(1)
+      end
+
+      it 'relates issue to an event' do
+        expect { subject.perform(project.id, alert_params) }
+          .to change(prometheus_alert.related_issues, :count)
+          .from(0)
+          .to(1)
+      end
+
+      context 'when event could not be found' do
+        before do
+          alert_params[:generatorURL] = 'http://somethingelse.com'
+        end
+
+        it 'creates an issue' do
+          expect { subject.perform(project.id, alert_params) }
+            .to change(Issue, :count)
+            .by(1)
+        end
+
+        it 'does not relate issue to an event' do
+          expect { subject.perform(project.id, alert_params) }
+            .not_to change(prometheus_alert.related_issues, :count)
+        end
+      end
+    end
   end
 end

spec/lib/gitlab/import_export/all_models.yml

@@ -27,6 +27,7 @@ issues:
 - design_versions
 - prometheus_alerts
 - prometheus_alert_events
+- self_managed_prometheus_alert_events
 events:
 - author
 - project
@@ -401,6 +402,7 @@ project:
 - operations_feature_flags_client
 - prometheus_alerts
 - prometheus_alert_events
+- self_managed_prometheus_alert_events
 - software_license_policies
 - project_registry
 - packages
@@ -474,6 +476,8 @@ prometheus_alerts:
 - prometheus_alert_events
 prometheus_alert_events:
 - project
+self_managed_prometheus_alert_events:
+- project
 epic_issues:
 - issue
 - epic