Merge branch 'tm/feature/list-runners-jobs-api' into 'master'

Add new API endpoint - list jobs of a specified runner

Closes #39699

See merge request gitlab-org/gitlab-ce!15432

7 files changed, 327 insertions, 7 deletions

diff --git a/app/finders/runner_jobs_finder.rb b/app/finders/runner_jobs_finder.rb
new file mode 100644
index 00000000000..52340f94523
--- /dev/null
+++ b/app/finders/runner_jobs_finder.rb
@@ -0,0 +1,22 @@
+class RunnerJobsFinder
+  attr_reader :runner, :params
+
+  def initialize(runner, params = {})
+    @runner = runner
+    @params = params
+  end
+
+  def execute
+    items = @runner.builds
+    items = by_status(items)
+    items
+  end
+
+  private
+
+  def by_status(items)
+    return items unless HasStatus::AVAILABLE_STATUSES.include?(params[:status])
+
+    items.where(status: params[:status])
+  end
+end
diff --git a/changelogs/unreleased/tm-feature-list-runners-jobs-api.yml b/changelogs/unreleased/tm-feature-list-runners-jobs-api.yml
new file mode 100644
index 00000000000..d75a2b68c30
--- /dev/null
+++ b/changelogs/unreleased/tm-feature-list-runners-jobs-api.yml
@@ -0,0 +1,5 @@
+---
+title: New API endpoint - list jobs for a specified runner
+merge_request: 15432
+author:
+type: added
diff --git a/doc/api/runners.md b/doc/api/runners.md
index 6304a496f94..015b09a745e 100644
--- a/doc/api/runners.md
+++ b/doc/api/runners.md
@@ -215,6 +215,91 @@ DELETE /runners/:id
 curl --request DELETE --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" "https://gitlab.example.com/api/v4/runners/6"
 ```
 
+## List runner's jobs
+
+List jobs that are being processed or were processed by specified Runner.
+
+```
+GET /runners/:id/jobs
+```
+
+| Attribute | Type    | Required | Description         |
+|-----------|---------|----------|---------------------|
+| `id`      | integer | yes      | The ID of a runner  |
+| `status`  | string  | no       | Status of the job; one of: `running`, `success`, `failed`, `canceled` |
+
+```
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" "https://gitlab.example.com/api/v4/runners/1/jobs?status=running"
+```
+
+Example response:
+
+```json
+[
+    {
+        "id": 2,
+        "status": "running",
+        "stage": "test",
+        "name": "test",
+        "ref": "master",
+        "tag": false,
+        "coverage": null,
+        "created_at": "2017-11-16T08:50:29.000Z",
+        "started_at": "2017-11-16T08:51:29.000Z",
+        "finished_at": "2017-11-16T08:53:29.000Z",
+        "duration": 120,
+        "user": {
+            "id": 1,
+            "name": "John Doe2",
+            "username": "user2",
+            "state": "active",
+            "avatar_url": "http://www.gravatar.com/avatar/c922747a93b40d1ea88262bf1aebee62?s=80&d=identicon",
+            "web_url": "http://localhost/user2",
+            "created_at": "2017-11-16T18:38:46.000Z",
+            "bio": null,
+            "location": null,
+            "skype": "",
+            "linkedin": "",
+            "twitter": "",
+            "website_url": "",
+            "organization": null
+        },
+        "commit": {
+            "id": "97de212e80737a608d939f648d959671fb0a0142",
+            "short_id": "97de212e",
+            "title": "Update configuration\r",
+            "created_at": "2017-11-16T08:50:28.000Z",
+            "parent_ids": [
+                "1b12f15a11fc6e62177bef08f47bc7b5ce50b141",
+                "498214de67004b1da3d820901307bed2a68a8ef6"
+            ],
+            "message": "See merge request !123",
+            "author_name": "John Doe2",
+            "author_email": "user2@example.org",
+            "authored_date": "2017-11-16T08:50:27.000Z",
+            "committer_name": "John Doe2",
+            "committer_email": "user2@example.org",
+            "committed_date": "2017-11-16T08:50:27.000Z"
+        },
+        "pipeline": {
+            "id": 2,
+            "sha": "97de212e80737a608d939f648d959671fb0a0142",
+            "ref": "master",
+            "status": "running"
+        },
+        "project": {
+            "id": 1,
+            "description": null,
+            "name": "project1",
+            "name_with_namespace": "John Doe2 / project1",
+            "path": "project1",
+            "path_with_namespace": "namespace1/project1",
+            "created_at": "2017-11-16T18:38:46.620Z"
+        }
+    }
+]
+```
+
 ## List project's runners
 
 List all runners (specific and shared) available in the project. Shared runners
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 7d5d68c8f14..ce332fe85d2 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -80,16 +80,21 @@ module API
       expose :group_access, as: :group_access_level
     end
 
-    class BasicProjectDetails < Grape::Entity
-      expose :id, :description, :default_branch, :tag_list
-      expose :ssh_url_to_repo, :http_url_to_repo, :web_url
+    class ProjectIdentity < Grape::Entity
+      expose :id, :description
       expose :name, :name_with_namespace
       expose :path, :path_with_namespace
+      expose :created_at
+    end
+
+    class BasicProjectDetails < ProjectIdentity
+      expose :default_branch, :tag_list
+      expose :ssh_url_to_repo, :http_url_to_repo, :web_url
       expose :avatar_url do |project, options|
         project.avatar_url(only_path: false)
       end
       expose :star_count, :forks_count
-      expose :created_at, :last_activity_at
+      expose :last_activity_at
     end
 
     class Project < BasicProjectDetails
@@ -827,17 +832,24 @@ module API
       expose :id, :sha, :ref, :status
     end
 
-    class Job < Grape::Entity
+    class JobBasic < Grape::Entity
       expose :id, :status, :stage, :name, :ref, :tag, :coverage
       expose :created_at, :started_at, :finished_at
       expose :duration
       expose :user, with: User
-      expose :artifacts_file, using: JobArtifactFile, if: -> (job, opts) { job.artifacts? }
       expose :commit, with: Commit
-      expose :runner, with: Runner
       expose :pipeline, with: PipelineBasic
     end
 
+    class Job < JobBasic
+      expose :artifacts_file, using: JobArtifactFile, if: -> (job, opts) { job.artifacts? }
+      expose :runner, with: Runner
+    end
+
+    class JobBasicWithProject < JobBasic
+      expose :project, with: ProjectIdentity
+    end
+
     class Trigger < Grape::Entity
       expose :id
       expose :token, :description
diff --git a/lib/api/runners.rb b/lib/api/runners.rb
index e816fcdd928..996457c5dfe 100644
--- a/lib/api/runners.rb
+++ b/lib/api/runners.rb
@@ -84,6 +84,23 @@ module API
 
         destroy_conditionally!(runner)
       end
+
+      desc 'List jobs running on a runner' do
+        success Entities::JobBasicWithProject
+      end
+      params do
+        requires :id, type: Integer, desc: 'The ID of the runner'
+        optional :status, type: String, desc: 'Status of the job', values: Ci::Build::AVAILABLE_STATUSES
+        use :pagination
+      end
+      get  ':id/jobs' do
+        runner = get_runner(params[:id])
+        authenticate_list_runners_jobs!(runner)
+
+        jobs = RunnerJobsFinder.new(runner, params).execute
+
+        present paginate(jobs), with: Entities::JobBasicWithProject
+      end
     end
 
     params do
@@ -192,6 +209,12 @@ module API
         forbidden!("No access granted") unless user_can_access_runner?(runner)
       end
 
+      def authenticate_list_runners_jobs!(runner)
+        return if current_user.admin?
+
+        forbidden!("No access granted") unless user_can_access_runner?(runner)
+      end
+
       def user_can_access_runner?(runner)
         current_user.ci_authorized_runners.exists?(runner.id)
       end
diff --git a/spec/finders/runner_jobs_finder_spec.rb b/spec/finders/runner_jobs_finder_spec.rb
new file mode 100644
index 00000000000..4275b1a7ff1
--- /dev/null
+++ b/spec/finders/runner_jobs_finder_spec.rb
@@ -0,0 +1,39 @@
+require 'spec_helper'
+
+describe RunnerJobsFinder do
+  let(:project) { create(:project) }
+  let(:runner) { create(:ci_runner, :shared) }
+
+  subject { described_class.new(runner, params).execute }
+
+  describe '#execute' do
+    context 'when params is empty' do
+      let(:params) { {} }
+      let!(:job) { create(:ci_build, runner: runner, project: project) }
+      let!(:job1) { create(:ci_build, project: project) }
+
+      it 'returns all jobs assigned to Runner' do
+        is_expected.to match_array(job)
+        is_expected.not_to match_array(job1)
+      end
+    end
+
+    context 'when params contains status' do
+      HasStatus::AVAILABLE_STATUSES.each do |target_status|
+        context "when status is #{target_status}" do
+          let(:params) { { status: target_status } }
+          let!(:job) { create(:ci_build, runner: runner, project: project, status: target_status) }
+
+          before do
+            exception_status = HasStatus::AVAILABLE_STATUSES - [target_status]
+            create(:ci_build, runner: runner, project: project, status: exception_status.first)
+          end
+
+          it 'returns matched job' do
+            is_expected.to eq([job])
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/spec/requests/api/runners_spec.rb b/spec/requests/api/runners_spec.rb
index fe38a7b3251..ec5cad4f4fd 100644
--- a/spec/requests/api/runners_spec.rb
+++ b/spec/requests/api/runners_spec.rb
@@ -354,6 +354,140 @@ describe API::Runners do
     end
   end
 
+  describe 'GET /runners/:id/jobs' do
+    set(:job_1) { create(:ci_build) }
+    let!(:job_2) { create(:ci_build, :running, runner: shared_runner, project: project) }
+    let!(:job_3) { create(:ci_build, :failed, runner: shared_runner, project: project) }
+    let!(:job_4) { create(:ci_build, :running, runner: specific_runner, project: project) }
+    let!(:job_5) { create(:ci_build, :failed, runner: specific_runner, project: project) }
+
+    context 'admin user' do
+      context 'when runner exists' do
+        context 'when runner is shared' do
+          it 'return jobs' do
+            get api("/runners/#{shared_runner.id}/jobs", admin)
+
+            expect(response).to have_gitlab_http_status(200)
+            expect(response).to include_pagination_headers
+
+            expect(json_response).to be_an(Array)
+            expect(json_response.length).to eq(2)
+          end
+        end
+
+        context 'when runner is specific' do
+          it 'return jobs' do
+            get api("/runners/#{specific_runner.id}/jobs", admin)
+
+            expect(response).to have_gitlab_http_status(200)
+            expect(response).to include_pagination_headers
+
+            expect(json_response).to be_an(Array)
+            expect(json_response.length).to eq(2)
+          end
+        end
+
+        context 'when valid status is provided' do
+          it 'return filtered jobs' do
+            get api("/runners/#{specific_runner.id}/jobs?status=failed", admin)
+
+            expect(response).to have_gitlab_http_status(200)
+            expect(response).to include_pagination_headers
+
+            expect(json_response).to be_an(Array)
+            expect(json_response.length).to eq(1)
+            expect(json_response.first).to include('id' => job_5.id)
+          end
+        end
+
+        context 'when invalid status is provided' do
+          it 'return 400' do
+            get api("/runners/#{specific_runner.id}/jobs?status=non-existing", admin)
+
+            expect(response).to have_gitlab_http_status(400)
+          end
+        end
+      end
+
+      context "when runner doesn't exist" do
+        it 'returns 404' do
+          get api('/runners/9999/jobs', admin)
+
+          expect(response).to have_gitlab_http_status(404)
+        end
+      end
+    end
+
+    context "runner project's administrative user" do
+      context 'when runner exists' do
+        context 'when runner is shared' do
+          it 'returns 403' do
+            get api("/runners/#{shared_runner.id}/jobs", user)
+
+            expect(response).to have_gitlab_http_status(403)
+          end
+        end
+
+        context 'when runner is specific' do
+          it 'return jobs' do
+            get api("/runners/#{specific_runner.id}/jobs", user)
+
+            expect(response).to have_gitlab_http_status(200)
+            expect(response).to include_pagination_headers
+
+            expect(json_response).to be_an(Array)
+            expect(json_response.length).to eq(2)
+          end
+        end
+
+        context 'when valid status is provided' do
+          it 'return filtered jobs' do
+            get api("/runners/#{specific_runner.id}/jobs?status=failed", user)
+
+            expect(response).to have_gitlab_http_status(200)
+            expect(response).to include_pagination_headers
+
+            expect(json_response).to be_an(Array)
+            expect(json_response.length).to eq(1)
+            expect(json_response.first).to include('id' => job_5.id)
+          end
+        end
+
+        context 'when invalid status is provided' do
+          it 'return 400' do
+            get api("/runners/#{specific_runner.id}/jobs?status=non-existing", user)
+
+            expect(response).to have_gitlab_http_status(400)
+          end
+        end
+      end
+
+      context "when runner doesn't exist" do
+        it 'returns 404' do
+          get api('/runners/9999/jobs', user)
+
+          expect(response).to have_gitlab_http_status(404)
+        end
+      end
+    end
+
+    context 'other authorized user' do
+      it 'does not return jobs' do
+        get api("/runners/#{specific_runner.id}/jobs", user2)
+
+        expect(response).to have_gitlab_http_status(403)
+      end
+    end
+
+    context 'unauthorized user' do
+      it 'does not return jobs' do
+        get api("/runners/#{specific_runner.id}/jobs")
+
+        expect(response).to have_gitlab_http_status(401)
+      end
+    end
+  end
+
   describe 'GET /projects/:id/runners' do
     context 'authorized user with master privileges' do
       it "returns project's runners" do