Add jobs endpoint

Changelog: added

app/graphql/resolvers/ci/all_jobs_resolver.rb

+# frozen_string_literal: true
+
+module Resolvers
+  module Ci
+    class AllJobsResolver < BaseResolver
+      include Gitlab::Graphql::Authorize::AuthorizeResource
+      include LooksAhead
+
+      type ::Types::Ci::JobType.connection_type, null: true
+
+      argument :statuses, [::Types::Ci::JobStatusEnum],
+              required: false,
+              description: 'Filter jobs by status.'
+
+      def resolve_with_lookahead(statuses: nil)
+        jobs = ::Ci::JobsFinder.new(current_user: current_user, params: { scope: statuses }).execute
+
+        apply_lookahead(jobs)
+      end
+    end
+  end
+end

app/graphql/types/query_type.rb

@@ -154,6 +154,12 @@ class QueryType < ::Types::BaseObject
           null: true,
           description: "Whether Gitpod is enabled in application settings."
 
+    field :jobs,
+          ::Types::Ci::JobType.connection_type,
+          null: true,
+          description: 'All jobs on this GitLab instance.',
+          resolver: ::Resolvers::Ci::AllJobsResolver
+
     def design_management
       DesignManagementObject.new(nil)
     end

doc/api/graphql/reference/index.md

@@ -226,6 +226,22 @@ Returns [`Iteration`](#iteration).
 | ---- | ---- | ----------- |
 | <a id="queryiterationid"></a>`id` | [`IterationID!`](#iterationid) | Find an iteration by its ID. |
+### `Query.jobs`
+
+All jobs on this GitLab instance.
+
+Returns [`CiJobConnection`](#cijobconnection).
+
+This field returns a [connection](#connections). It accepts the
+four standard [pagination arguments](#connection-pagination-arguments):
+`before: String`, `after: String`, `first: Int`, `last: Int`.
+
+#### Arguments
+
+| Name | Type | Description |
+| ---- | ---- | ----------- |
+| <a id="queryjobsstatuses"></a>`statuses` | [`[CiJobStatus!]`](#cijobstatus) | Filter jobs by status. |
+
 ### `Query.licenseHistoryEntries`
 Fields related to entries in the license history.

spec/requests/api/graphql/job_query_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'getting job information' do
+  include GraphqlHelpers
+
+  let_it_be(:job) { create(:ci_build, name: 'job1') }
+
+  let(:query) do
+    graphql_query_for(:jobs)
+  end
+
+  context 'when user is admin' do
+    let_it_be(:current_user) { create(:admin) }
+
+    it 'has full access to all jobs' do
+      post_graphql(query, current_user: current_user)
+
+      expect(graphql_data['jobs']['nodes'].first["name"]).to match("job1")
+      expect(graphql_data['jobs']['count']).to match(1)
+    end
+  end
+
+  context 'if the user is not an admin' do
+    let_it_be(:current_user) { create(:user) }
+
+    it 'has no access to the jobs' do
+      post_graphql(query, current_user: current_user)
+
+      expect(graphql_data['jobs']['nodes']).to match([])
+      expect(graphql_data['jobs']['count']).to match(0)
+    end
+  end
+end