Merge pull request #262 from erikwilson/golangci-lint

.golangci.json

+{
+	"linters": {
+		"disable-all": true,
+		"enable": [
+			"govet",
+			"golint",
+			"goimports",
+			"misspell",
+			"ineffassign",
+			"gofmt"
+		]
+	},
+	"run": {
+		"skip-files": [
+			"/zz_generated_"
+		],
+		"deadline": "5m"
+	}
+}

.gometalinter.json

-{
-  "EnableAll": false,
-  "Enable": [
-    "golint",
-    "goimports",
-    "misspell",
-    "ineffassign",
-    "errcheck"
-  ],
-  "Deadline": "1m"
-}
\ No newline at end of file

Dockerfile.dapper

-FROM golang:1.11.4-alpine3.8
-# FROM arm=golang@sha256:fe81149b4e7f07ecb558fd16cdbcdb11e739846a046e38cc6e170aa39a67e7ec arm64=golang@sha256:da9c2d140ed4bf911ef8f6d9437912b80497c256ef2235c65836eac83d1c0ce7
+FROM golang:1.12.1-alpine3.9
 
 RUN apk -U --no-cache add bash git gcc musl-dev docker vim less file curl wget ca-certificates jq linux-headers zlib-dev tar zip squashfs-tools npm coreutils \
     python3 py3-pip python3-dev openssl-dev libffi-dev libseccomp libseccomp-dev make
 RUN pip3 install 'tox==3.6.0'
 RUN apk -U --no-cache --repository http://dl-3.alpinelinux.org/alpine/edge/main/ add sqlite-dev sqlite-static
 RUN mkdir -p /go/src/golang.org/x && \
-    cd /go/src/golang.org/x && git clone https://github.com/golang/tools && git clone https://github.com/golang/lint && \
-    git -C /go/src/golang.org/x/lint/golint checkout -b current 06c8688daad7faa9da5a0c2f163a3d14aac986ca && \
-    go install golang.org/x/lint/golint
-RUN go get -d github.com/alecthomas/gometalinter && \
-    git -C /go/src/github.com/alecthomas/gometalinter checkout -b current v2.0.11 && \
-    go install github.com/alecthomas/gometalinter && \
-    gometalinter --install
+    cd /go/src/golang.org/x && git clone https://github.com/golang/tools && \
+    git -C /go/src/golang.org/x/tools checkout -b current aa82965741a9fecd12b026fbb3d3c6ed3231b8f8 && \
+    go install golang.org/x/tools/cmd/goimports
 RUN rm -rf /go/src /go/pkg
 
 ARG DAPPER_HOST_ARCH
 ENV ARCH $DAPPER_HOST_ARCH
+
+RUN if [ "${ARCH}" == "amd64" ]; then \
+        curl -sL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s v1.15.0; \
+    fi
+
 ENV DAPPER_RUN_ARGS --privileged -v k3s-cache:/go/src/github.com/rancher/k3s/.cache
 ENV DAPPER_ENV REPO TAG DRONE_TAG IMAGE_NAME
 ENV DAPPER_SOURCE /go/src/github.com/rancher/k3s/

cmd/k3s/main.go

@@ -105,13 +105,13 @@ func getAssetAndDir(dataDir string) (string, string) {
 
 func extract(dataDir string) (string, error) {
 	// first look for global asset folder so we don't create a HOME version if not needed
-	asset, dir := getAssetAndDir(datadir.DefaultDataDir)
+	_, dir := getAssetAndDir(datadir.DefaultDataDir)
 	if _, err := os.Stat(dir); err == nil {
 		logrus.Debugf("Asset dir %s", dir)
 		return dir, nil
 	}
 
-	asset, dir = getAssetAndDir(dataDir)
+	asset, dir := getAssetAndDir(dataDir)
 	if _, err := os.Stat(dir); err == nil {
 		logrus.Debugf("Asset dir %s", dir)
 		return dir, nil

pkg/agent/flannel/flannel.go

@@ -122,7 +122,7 @@ func WriteSubnetFile(path string, nw ip.IP4Net, ipMasq bool, bn backend.Network)
 	// Write out the first usable IP by incrementing
 	// sn.IP by one
 	sn := bn.Lease().Subnet
-	sn.IP += 1
+	sn.IP++
 
 	fmt.Fprintf(f, "FLANNEL_NETWORK=%s\n", nw)
 	fmt.Fprintf(f, "FLANNEL_SUBNET=%s\n", sn)

pkg/agent/flannel/setup.go

@@ -35,7 +35,7 @@ const (
   ]
 }
 `
-	netJson = `{
+	netJSON = `{
     "Network": "%CIDR%",
     "Backend": {
     "Type": "vxlan"
@@ -99,5 +99,5 @@ func createFlannelConf(config *config.Node) error {
 		return nil
 	}
 	return util.WriteFile(config.FlannelConf,
-		strings.Replace(netJson, "%CIDR%", config.AgentConfig.ClusterCIDR.String(), -1))
+		strings.Replace(netJSON, "%CIDR%", config.AgentConfig.ClusterCIDR.String(), -1))
 }

pkg/cli/cmds/server.go

@@ -16,7 +16,7 @@ type Server struct {
 	DisableAgent     bool
 	KubeConfigOutput string
 	KubeConfigMode   string
-	KnownIPs cli.StringSlice
+	KnownIPs         cli.StringSlice
 }
 
 var ServerConfig Server
@@ -96,8 +96,8 @@ func NewServerCommand(action func(*cli.Context) error) cli.Command {
 				EnvVar:      "K3S_KUBECONFIG_MODE",
 			},
 			cli.StringSliceFlag{
-				Name:        "tls-san",
-				Usage:       "Add additional hostname or IP as a Subject Alternative Name in the TLS cert",
+				Name:  "tls-san",
+				Usage: "Add additional hostname or IP as a Subject Alternative Name in the TLS cert",
 				Value: &ServerConfig.KnownIPs,
 			},
 			NodeIPFlag,

pkg/deploy/stage.go

@@ -2,11 +2,12 @@ package deploy
 
 import (
 	"bytes"
-	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
 	"io/ioutil"
 	"os"
 	"path/filepath"
+
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
 )
 
 func Stage(dataDir string, templateVars map[string]string, skipList []string) error {

pkg/server/server.go

@@ -137,8 +137,7 @@ func startNorman(ctx context.Context, config *Config) (string, error) {
 		},
 	}
 
-	ctx, _, err = normanConfig.Build(ctx, nil)
-	if err != nil {
+	if _, _, err = normanConfig.Build(ctx, nil); err != nil {
 		return "", err
 	}
 

pkg/servicelb/controller.go

@@ -222,7 +222,7 @@ func (h *handler) newDeployment(svc *core.Service) (*apps.Deployment, error) {
 
 	for _, node := range nodes {
 		if Ready.IsTrue(node) {
-			replicas += 1
+			replicas++
 		}
 		if replicas >= 2 {
 			break

scripts/validate

@@ -3,34 +3,21 @@ set -e
 
 cd $(dirname $0)/..
 
+if ! command -v golangci-lint; then
+    echo Skipping validation: no golangci-lint available
+    exit
+fi
 echo Running validation
 
-PACKAGES="$(go list ./...)"
-
 if [ ! -e build/data ];then
     mkdir -p build/data
 fi
 
+echo Running: go generate
 go generate
 
-echo Running: go vet
-go vet ${PACKAGES}
-echo Running: gometalinter
-for i in ${PACKAGES}; do
-    if [ -n "$(gometalinter $i | \
-        grep -v 'pkg/data/zz_generated_bindata.go' | \
-        grep -v 'should have comment.*or be unexported' | \
-        grep -v 'cli/cmd.*don.t use underscores in Go name' | \
-        grep -v 'cli/cmd.*should be DNS' | \
-        tee /dev/stderr)" ]; then
-        failed=true
-    fi
-done
-test -z "$failed"
-echo Running: go fmt
-test -z "$(go fmt ${PACKAGES} | \
-        grep -v 'pkg/data/zz_generated_bindata.go' | \
-        tee /dev/stderr)"
+echo Running: golangci-lint
+golangci-lint run
 
 . ./scripts/version.sh
 

types/apis/apps/v1/zz_generated_deployment_controller.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/rancher/norman/controller"
 	"github.com/rancher/norman/objectclient"
-	"k8s.io/api/apps/v1"
+	v1 "k8s.io/api/apps/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"

types/apis/apps/v1/zz_generated_deployment_lifecycle_adapter.go

@@ -2,7 +2,7 @@ package v1
 
 import (
 	"github.com/rancher/norman/lifecycle"
-	"k8s.io/api/apps/v1"
+	v1 "k8s.io/api/apps/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )
 

types/apis/batch/v1/zz_generated_job_controller.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/rancher/norman/controller"
 	"github.com/rancher/norman/objectclient"
-	"k8s.io/api/batch/v1"
+	v1 "k8s.io/api/batch/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"

types/apis/batch/v1/zz_generated_job_lifecycle_adapter.go

@@ -2,7 +2,7 @@ package v1
 
 import (
 	"github.com/rancher/norman/lifecycle"
-	"k8s.io/api/batch/v1"
+	v1 "k8s.io/api/batch/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )
 

types/apis/core/v1/zz_generated_config_map_controller.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/rancher/norman/controller"
 	"github.com/rancher/norman/objectclient"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"

types/apis/core/v1/zz_generated_config_map_lifecycle_adapter.go

@@ -2,7 +2,7 @@ package v1
 
 import (
 	"github.com/rancher/norman/lifecycle"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )
 

types/apis/core/v1/zz_generated_endpoints_controller.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/rancher/norman/controller"
 	"github.com/rancher/norman/objectclient"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"

types/apis/core/v1/zz_generated_endpoints_lifecycle_adapter.go

@@ -2,7 +2,7 @@ package v1
 
 import (
 	"github.com/rancher/norman/lifecycle"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )
 

types/apis/core/v1/zz_generated_node_controller.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/rancher/norman/controller"
 	"github.com/rancher/norman/objectclient"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"

types/apis/core/v1/zz_generated_node_lifecycle_adapter.go

@@ -2,7 +2,7 @@ package v1
 
 import (
 	"github.com/rancher/norman/lifecycle"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )
 

types/apis/core/v1/zz_generated_pod_controller.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/rancher/norman/controller"
 	"github.com/rancher/norman/objectclient"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"

types/apis/core/v1/zz_generated_pod_lifecycle_adapter.go

@@ -2,7 +2,7 @@ package v1
 
 import (
 	"github.com/rancher/norman/lifecycle"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )
 

types/apis/core/v1/zz_generated_service_account_controller.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/rancher/norman/controller"
 	"github.com/rancher/norman/objectclient"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"

types/apis/core/v1/zz_generated_service_account_lifecycle_adapter.go

@@ -2,7 +2,7 @@ package v1
 
 import (
 	"github.com/rancher/norman/lifecycle"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )
 

types/apis/core/v1/zz_generated_service_controller.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/rancher/norman/controller"
 	"github.com/rancher/norman/objectclient"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"

types/apis/core/v1/zz_generated_service_lifecycle_adapter.go

@@ -2,7 +2,7 @@ package v1
 
 import (
 	"github.com/rancher/norman/lifecycle"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )
 

types/apis/rbac.authorization.k8s.io/v1/zz_generated_cluster_role_binding_controller.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/rancher/norman/controller"
 	"github.com/rancher/norman/objectclient"
-	"k8s.io/api/rbac/v1"
+	v1 "k8s.io/api/rbac/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"

types/apis/rbac.authorization.k8s.io/v1/zz_generated_cluster_role_binding_lifecycle_adapter.go

@@ -2,7 +2,7 @@ package v1
 
 import (
 	"github.com/rancher/norman/lifecycle"
-	"k8s.io/api/rbac/v1"
+	v1 "k8s.io/api/rbac/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )