*: move to go 1.11 (#4626)

* *: move to go 1.11
Signed-off-by: NSimon Pasquier <spasquie@redhat.com>

* Reduce number of places where we specify the Go version
Signed-off-by: NSimon Pasquier <spasquie@redhat.com>

.circleci/config.yml

 ---
 version: 2.1
 
-jobs:
-  test:
-    # Whenever the Go version is updated here, .travis.yml should also be
-    # updated.
+executors:
+  # Whenever the Go version is updated here, .travis.yml and .promu.yml
+  # should also be updated.
+  golang:
     docker:
-    - image: circleci/golang:1.10
+    - image: circleci/golang:1.11
     working_directory: /go/src/github.com/prometheus/prometheus
+
+jobs:
+  test:
+    executor: golang
     resource_class: large
 
     steps:
@@ -24,7 +28,6 @@ jobs:
 
   build:
     machine: true
-    working_directory: /home/circleci/.go_workspace/src/github.com/prometheus/prometheus
 
     steps:
     - checkout
@@ -39,9 +42,7 @@ jobs:
         destination: /build
 
   docker_hub_master:
-    docker:
-    - image: circleci/golang:1.10
-    working_directory: /go/src/github.com/prometheus/prometheus
+    executor: golang
 
     steps:
     - checkout
@@ -59,9 +60,7 @@ jobs:
     - run: make docker-publish DOCKER_REPO=quay.io/prometheus
 
   docker_hub_release_tags:
-    docker:
-    - image: circleci/golang:1.10
-    working_directory: /go/src/github.com/prometheus/prometheus
+    executor: golang
 
     steps:
     - checkout

.promu.yml

+go:
+    # Whenever the Go version is updated here, .travis.yml and
+    # .circle/config.yml should also be updated.
+    version: 1.11
 repository:
     path: github.com/prometheus/prometheus
 build:

.travis.yml

@@ -2,10 +2,10 @@ sudo: false
 
 language: go
 
-# Whenever the Go version is updated here, .circleci/config.yml should also be
-# updated.
+# Whenever the Go version is updated here, .circleci/config.yml and .promu.yml
+# should also be updated.
 go:
-- 1.10.x
+- 1.11.x
 
 go_import_path: github.com/prometheus/prometheus
 

Makefile

@@ -18,8 +18,10 @@ STATICCHECK_IGNORE = \
   github.com/prometheus/prometheus/discovery/kubernetes/node.go:SA1019 \
   github.com/prometheus/prometheus/documentation/examples/remote_storage/remote_storage_adapter/main.go:SA1019 \
   github.com/prometheus/prometheus/pkg/textparse/lex.l.go:SA4006 \
+  github.com/prometheus/prometheus/pkg/textparse/lex.l.go:SA4006 \
   github.com/prometheus/prometheus/pkg/pool/pool.go:SA6002 \
-  github.com/prometheus/prometheus/promql/engine.go:SA6002
+  github.com/prometheus/prometheus/promql/engine.go:SA6002 \
+  github.com/prometheus/prometheus/prompb/rpc.pb.gw.go:SA1019
 
 DOCKER_IMAGE_NAME       ?= prometheus
 

discovery/kubernetes/service_test.go

@@ -86,8 +86,8 @@ func TestServiceDiscoveryAdd(t *testing.T) {
 				Targets: []model.LabelSet{
 					{
 						"__meta_kubernetes_service_port_protocol": "TCP",
-						"__address__":                             "testservice.default.svc:30900",
-						"__meta_kubernetes_service_port_name":     "testport",
+						"__address__":                         "testservice.default.svc:30900",
+						"__meta_kubernetes_service_port_name": "testport",
 					},
 				},
 				Labels: model.LabelSet{
@@ -135,13 +135,13 @@ func TestServiceDiscoveryUpdate(t *testing.T) {
 				Targets: []model.LabelSet{
 					{
 						"__meta_kubernetes_service_port_protocol": "TCP",
-						"__address__":                             "testservice.default.svc:30900",
-						"__meta_kubernetes_service_port_name":     "testport0",
+						"__address__":                         "testservice.default.svc:30900",
+						"__meta_kubernetes_service_port_name": "testport0",
 					},
 					{
 						"__meta_kubernetes_service_port_protocol": "UDP",
-						"__address__":                             "testservice.default.svc:30901",
-						"__meta_kubernetes_service_port_name":     "testport1",
+						"__address__":                         "testservice.default.svc:30901",
+						"__meta_kubernetes_service_port_name": "testport1",
 					},
 				},
 				Labels: model.LabelSet{
@@ -175,8 +175,8 @@ func TestServiceDiscoveryNamespaces(t *testing.T) {
 				Targets: []model.LabelSet{
 					{
 						"__meta_kubernetes_service_port_protocol": "TCP",
-						"__address__":                             "testservice.ns1.svc:30900",
-						"__meta_kubernetes_service_port_name":     "testport",
+						"__address__":                         "testservice.ns1.svc:30900",
+						"__meta_kubernetes_service_port_name": "testport",
 					},
 				},
 				Labels: model.LabelSet{
@@ -189,8 +189,8 @@ func TestServiceDiscoveryNamespaces(t *testing.T) {
 				Targets: []model.LabelSet{
 					{
 						"__meta_kubernetes_service_port_protocol": "TCP",
-						"__address__":                             "testservice.ns2.svc:30900",
-						"__meta_kubernetes_service_port_name":     "testport",
+						"__address__":                         "testservice.ns2.svc:30900",
+						"__meta_kubernetes_service_port_name": "testport",
 					},
 				},
 				Labels: model.LabelSet{

web/api/v1/api_test.go

@@ -234,11 +234,11 @@ func TestEndpoints(t *testing.T) {
 			QueryEngine:           suite.QueryEngine(),
 			targetRetriever:       testTargetRetriever{},
 			alertmanagerRetriever: testAlertmanagerRetriever{},
-			now:            func() time.Time { return now },
-			config:         func() config.Config { return samplePrometheusCfg },
-			flagsMap:       sampleFlagMap,
-			ready:          func(f http.HandlerFunc) http.HandlerFunc { return f },
-			rulesRetriever: algr,
+			now:                   func() time.Time { return now },
+			config:                func() config.Config { return samplePrometheusCfg },
+			flagsMap:              sampleFlagMap,
+			ready:                 func(f http.HandlerFunc) http.HandlerFunc { return f },
+			rulesRetriever:        algr,
 		}
 
 		testEndpoints(t, api, true)
@@ -287,11 +287,11 @@ func TestEndpoints(t *testing.T) {
 			QueryEngine:           suite.QueryEngine(),
 			targetRetriever:       testTargetRetriever{},
 			alertmanagerRetriever: testAlertmanagerRetriever{},
-			now:            func() time.Time { return now },
-			config:         func() config.Config { return samplePrometheusCfg },
-			flagsMap:       sampleFlagMap,
-			ready:          func(f http.HandlerFunc) http.HandlerFunc { return f },
-			rulesRetriever: algr,
+			now:                   func() time.Time { return now },
+			config:                func() config.Config { return samplePrometheusCfg },
+			flagsMap:              sampleFlagMap,
+			ready:                 func(f http.HandlerFunc) http.HandlerFunc { return f },
+			rulesRetriever:        algr,
 		}
 
 		testEndpoints(t, api, false)

web/ui/assets_vfsdata.go

@@ -549,7 +549,7 @@ func (fs vfsgen۰FS) Open(path string) (http.File, error) {
 		}
 		return &vfsgen۰CompressedFile{
 			vfsgen۰CompressedFileInfo: f,
-			gr: gr,
+			gr:                        gr,
 		}, nil
 	case *vfsgen۰DirInfo:
 		return &vfsgen۰Dir{