chore: use GitHub Actions.

.github/workflows/go-cross.yml

@@ -0,0 +1,45 @@
+name: Go Matrix
+on: [push, pull_request]
+
+jobs:
+
+  cross:
+    name: Go
+    runs-on: ${{ matrix.os }}
+    env:
+      CGO_ENABLED: 0
+
+    strategy:
+      matrix:
+        go-version: [ 1.14, 1.15, 1.x ]
+        os: [ubuntu-latest, macos-latest, windows-latest]
+
+    steps:
+      # https://github.com/marketplace/actions/setup-go-environment
+      - name: Set up Go ${{ matrix.go-version }}
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      # https://github.com/marketplace/actions/checkout
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      # https://github.com/marketplace/actions/cache
+      - name: Cache Go modules
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/go/pkg/mod              # Module download cache
+            ~/.cache/go-build         # Build cache (Linux)
+            ~/Library/Caches/go-build # Build cache (Mac)
+            '%LocalAppData%\go-build' # Build cache (Windows)
+          key: ${{ runner.os }}-${{ matrix.go-version }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-${{ matrix.go-version }}-go-
+
+      - name: Test
+        run: go test -v -cover ./...
+
+      - name: Build
+        run: go build -v -ldflags "-s -w" -trimpath

.github/workflows/main.yml

@@ -0,0 +1,81 @@
+name: Main
+
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - v*
+  pull_request:
+
+jobs:
+
+  main:
+    name: Main Process
+    runs-on: ubuntu-latest
+    env:
+      GO_VERSION: 1.15
+      GOLANGCI_LINT_VERSION: v1.33.0
+      SEIHON_VERSION: v0.5.1
+      CGO_ENABLED: 0
+
+    steps:
+
+      # https://github.com/marketplace/actions/setup-go-environment
+      - name: Set up Go ${{ env.GO_VERSION }}
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      # https://github.com/marketplace/actions/checkout
+      - name: Check out code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      # https://github.com/marketplace/actions/cache
+      - name: Cache Go modules
+        uses: actions/cache@v2
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-
+
+      - name: Check and get dependencies
+        run: |
+          go mod tidy
+          git diff --exit-code go.mod
+          git diff --exit-code go.sum
+          go mod download
+
+      # https://golangci-lint.run/usage/install#other-ci
+      - name: Install golangci-lint ${{ env.GOLANGCI_LINT_VERSION }}
+        run: |
+          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin ${GOLANGCI_LINT_VERSION}
+          golangci-lint --version
+
+      - name: Make
+        run: make
+
+      - name: Make Image
+        run: make image
+
+      # Install Docker image multi-arch builder
+      - name: Install seihon ${{ env.SEIHON_VERSION }}
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: |
+          curl -sSfL https://raw.githubusercontent.com/ldez/seihon/master/godownloader.sh | sh -s -- -b $(go env GOPATH)/bin ${SEIHON_VERSION}
+          seihon --version
+
+      - name: Docker Login
+        if: startsWith(github.ref, 'refs/tags/v')
+        env:
+          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
+        run: |
+          echo "${DOCKER_PASSWORD}" | docker login --username "${DOCKER_USERNAME}" --password-stdin
+
+      - name: Deploy Docker Images (seihon)
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: make publish-images

.golangci.toml

@@ -32,8 +32,14 @@
     "gochecknoinits",
     "gomnd",
     "wsl",
-    "goerr113",
+    "nlreturn",
     "testpackage",
+    "paralleltest",
+    "tparallel",
+    "goerr113",
+    "wrapcheck",
+    "exhaustive",
+    "exhaustivestruct",
   ]
 
 [issues]

Makefile

@@ -2,19 +2,21 @@
 
 TAG_NAME := $(shell git tag -l --contains HEAD)
 
-default: check test build
+IMAGE_NAME := traefik/whoami
 
-test:
-	go test -v -cover ./...
+default: check test build
 
 build:
-	CGO_ENABLED=0 go build -a --installsuffix cgo --ldflags="-s" -o whoami
+	CGO_ENABLED=0 go build -a --trimpath --installsuffix cgo --ldflags="-s" -o whoami
 
-image:
-	docker build -t traefik/whoami .
+test:
+	go test -v -cover ./...
 
 check:
 	golangci-lint run
 
+image:
+	docker build -t $(IMAGE_NAME) .
+
 publish-images:
-	seihon publish -v "$(TAG_NAME)" -v "latest" --image-name traefik/whoami --dry-run=false
+	seihon publish -v "$(TAG_NAME)" -v "latest" --image-name $(IMAGE_NAME) --dry-run=false

README.md

@@ -1,7 +1,7 @@
 # whoami
 
 [![Docker Pulls](https://img.shields.io/docker/pulls/traefik/whoami.svg)](https://hub.docker.com/r/traefik/whoami/)
-[![Build Status](https://travis-ci.com/traefik/whoami.svg?branch=master)](https://travis-ci.com/traefik/whoami)
+[![Build Status](https://github.com/traefik/whoami/workflows/Main/badge.svg?branch=master)](https://github.com/traefik/whoami/actions)
 
 Tiny Go webserver that prints os information and HTTP request to output
 

app.go

@@ -28,10 +28,12 @@ const (
 	TB
 )
 
-var cert string
-var key string
-var port string
-var name string
+var (
+	cert string
+	key  string
+	port string
+	name string
+)
 
 func init() {
 	flag.StringVar(&cert, "cert", "", "give me a certificate")
@@ -130,7 +132,7 @@ func dataHandler(w http.ResponseWriter, r *http.Request) {
 	content := fillContent(size)
 
 	if attachment {
-		w.Header().Add("Content-Disposition", "Attachment")
+		w.Header().Set("Content-Disposition", "Attachment")
 		http.ServeContent(w, r, "data.txt", time.Now(), content)
 		return
 	}
@@ -231,8 +233,10 @@ type healthState struct {
 	StatusCode int
 }
 
-var currentHealthState = healthState{http.StatusOK}
-var mutexHealthState = &sync.RWMutex{}
+var (
+	currentHealthState = healthState{http.StatusOK}
+	mutexHealthState   = &sync.RWMutex{}
+)
 
 func healthHandler(w http.ResponseWriter, req *http.Request) {
 	if req.Method == http.MethodPost {

tmpl.Dockerfile

@@ -12,6 +12,7 @@ COPY go.sum .
 RUN GO111MODULE=on GOPROXY=https://proxy.golang.org go mod download
 
 COPY . .
+
 RUN GOARCH={{ .GoARCH }} GOARM={{ .GoARM }} make build
 
 FROM scratch