add tag_list param to runners api

doc/api/runners.md

@@ -13,13 +13,15 @@ GET /runners
 GET /runners?scope=active
 GET /runners?type=project_type
 GET /runners?status=active
+GET /runners?tag_list=tag1,tag2
 ```
 
 | Attribute   | Type           | Required | Description         |
-|-----------|---------|----------|---------------------|
+|-------------|----------------|----------|---------------------|
 | `scope`     | string         | no       | Deprecated: Use `type` or `status` instead. The scope of specific runners to show, one of: `active`, `paused`, `online`, `offline`; showing all runners if none provided |
 | `type`      | string         | no       | The type of runners to show, one of: `instance_type`, `group_type`, `project_type` |
 | `status`    | string         | no       | The status of runners to show, one of: `active`, `paused`, `online`, `offline` |
+| `tag_list`  | Array[String]  | no       | List of of the runner's tags |
 
 ```
 curl --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/runners"
@@ -62,13 +64,15 @@ GET /runners/all
 GET /runners/all?scope=online
 GET /runners/all?type=project_type
 GET /runners/all?status=active
+GET /runners/all?tag_list=tag1,tag2
 ```
 
 | Attribute   | Type           | Required | Description         |
-|-----------|---------|----------|---------------------|
+|-------------|----------------|----------|---------------------|
 | `scope`     | string         | no       | Deprecated: Use `type` or `status` instead. The scope of runners to show, one of: `specific`, `shared`, `active`, `paused`, `online`, `offline`; showing all runners if none provided |
 | `type`      | string         | no       | The type of runners to show, one of: `instance_type`, `group_type`, `project_type` |
 | `status`    | string         | no       | The status of runners to show, one of: `active`, `paused`, `online`, `offline` |
+| `tag_list`  | Array[String]  | no       | List of of the runner's tags |
 
 ```
 curl --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/runners/all"
@@ -347,14 +351,16 @@ GET /projects/:id/runners
 GET /projects/:id/runners?scope=active
 GET /projects/:id/runners?type=project_type
 GET /projects/:id/runners?status=active
+GET /projects/:id/runners?tag_list=tag1,tag2
 ```
 
 | Attribute  | Type           | Required | Description         |
-|-----------|----------------|----------|---------------------|
+|------------|----------------|----------|---------------------|
 | `id`       | integer/string | yes      | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
 | `scope`    | string         | no       | Deprecated: Use `type` or `status` instead. The scope of specific runners to show, one of: `active`, `paused`, `online`, `offline`; showing all runners if none provided |
 | `type`     | string         | no       | The type of runners to show, one of: `instance_type`, `group_type`, `project_type` |
 | `status`   | string         | no       | The status of runners to show, one of: `active`, `paused`, `online`, `offline` |
+| `tag_list` | Array[String]  | no       | List of of the runner's tags |
 
 ```
 curl --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/projects/9/runners"

lib/api/runners.rb

@@ -17,6 +17,7 @@ module API
                         desc: 'The type of the runners to show'
         optional :status, type: String, values: Ci::Runner::AVAILABLE_STATUSES,
                           desc: 'The status of the runners to show'
+        optional :tag_list, type: Array[String], desc: 'The tags of the runners to show'
         use :pagination
       end
       get do
@@ -24,6 +25,7 @@ module API
         runners = filter_runners(runners, params[:scope], allowed_scopes: Ci::Runner::AVAILABLE_STATUSES)
         runners = filter_runners(runners, params[:type], allowed_scopes: Ci::Runner::AVAILABLE_TYPES)
         runners = filter_runners(runners, params[:status], allowed_scopes: Ci::Runner::AVAILABLE_STATUSES)
+        runners = runners.tagged_with(params[:tag_list]) if params[:tag_list]
 
         present paginate(runners), with: Entities::Runner
       end
@@ -38,6 +40,7 @@ module API
                         desc: 'The type of the runners to show'
         optional :status, type: String, values: Ci::Runner::AVAILABLE_STATUSES,
                           desc: 'The status of the runners to show'
+        optional :tag_list, type: Array[String], desc: 'The tags of the runners to show'
         use :pagination
       end
       get 'all' do
@@ -47,6 +50,7 @@ module API
         runners = filter_runners(runners, params[:scope])
         runners = filter_runners(runners, params[:type], allowed_scopes: Ci::Runner::AVAILABLE_TYPES)
         runners = filter_runners(runners, params[:status], allowed_scopes: Ci::Runner::AVAILABLE_STATUSES)
+        runners = runners.tagged_with(params[:tag_list]) if params[:tag_list]
 
         present paginate(runners), with: Entities::Runner
       end
@@ -139,6 +143,7 @@ module API
                         desc: 'The type of the runners to show'
         optional :status, type: String, values: Ci::Runner::AVAILABLE_STATUSES,
                           desc: 'The status of the runners to show'
+        optional :tag_list, type: Array[String], desc: 'The tags of the runners to show'
         use :pagination
       end
       get ':id/runners' do
@@ -146,6 +151,7 @@ module API
         runners = filter_runners(runners, params[:scope])
         runners = filter_runners(runners, params[:type], allowed_scopes: Ci::Runner::AVAILABLE_TYPES)
         runners = filter_runners(runners, params[:status], allowed_scopes: Ci::Runner::AVAILABLE_STATUSES)
+        runners = runners.tagged_with(params[:tag_list]) if params[:tag_list]
 
         present paginate(runners), with: Entities::Runner
       end

spec/requests/api/runners_spec.rb

@@ -90,6 +90,17 @@ describe API::Runners do
 
         expect(response).to have_gitlab_http_status(400)
       end
+
+      it 'filters runners by tag_list' do
+        create(:ci_runner, :project, description: 'Runner tagged with tag1 and tag2', projects: [project], tag_list: %w[tag1 tag2])
+        create(:ci_runner, :project, description: 'Runner tagged with tag2', projects: [project], tag_list: ['tag2'])
+
+        get api('/runners?tag_list=tag1,tag2', user)
+
+        expect(json_response).to match_array [
+          a_hash_including('description' => 'Runner tagged with tag1 and tag2')
+        ]
+      end
     end
 
     context 'unauthorized user' do
@@ -181,6 +192,17 @@ describe API::Runners do
 
           expect(response).to have_gitlab_http_status(400)
         end
+
+        it 'filters runners by tag_list' do
+          create(:ci_runner, :project, description: 'Runner tagged with tag1 and tag2', projects: [project], tag_list: %w[tag1 tag2])
+          create(:ci_runner, :project, description: 'Runner tagged with tag2', projects: [project], tag_list: ['tag2'])
+
+          get api('/runners/all?tag_list=tag1,tag2', admin)
+
+          expect(json_response).to match_array [
+            a_hash_including('description' => 'Runner tagged with tag1 and tag2')
+          ]
+        end
       end
 
       context 'without admin privileges' do
@@ -716,6 +738,17 @@ describe API::Runners do
 
         expect(response).to have_gitlab_http_status(400)
       end
+
+      it 'filters runners by tag_list' do
+        create(:ci_runner, :project, description: 'Runner tagged with tag1 and tag2', projects: [project], tag_list: %w[tag1 tag2])
+        create(:ci_runner, :project, description: 'Runner tagged with tag2', projects: [project], tag_list: ['tag2'])
+
+        get api("/projects/#{project.id}/runners?tag_list=tag1,tag2", user)
+
+        expect(json_response).to match_array [
+          a_hash_including('description' => 'Runner tagged with tag1 and tag2')
+        ]
+      end
     end
 
     context 'authorized user without maintainer privileges' do