Enable Multiarch docker builds

.gitignore

@@ -42,3 +42,5 @@ users_database.test.yml
 .idea
 
 .authelia-interrupt
+
+qemu-*-static

.travis.yml

@@ -1,11 +1,21 @@
 language: go
+
 required: sudo
+
 go:
   - '1.13'
+
 services:
   - docker
   - ntp
   - xvfb
+
+before_script:
+  - export PATH=./cmd/authelia-scripts/:/tmp:$PATH
+
+jobs:
+  include:
+    - stage: test
       addons:
         chrome: stable
         apt:
@@ -14,17 +24,35 @@ addons:
           packages:
             - libgif-dev
             - google-chrome-stable
-
-before_script:
+      script:
         - curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
         - nvm install v11 && nvm use v11 && npm i
-script:
-- "source bootstrap.sh"
-- "authelia-scripts ci"
-after_success:
-- "authelia-scripts docker publish"
-
+        - source bootstrap.sh
+        - authelia-scripts ci
       # TODO(c.michaud): publish built artifact on Github.
+    - &build-images
+      stage: build images
+      env:
+        - ARCH=amd64
+      install: skip
+      script:
+        - while sleep 9m; do echo '===== Prevent build from terminating  ====='; done &
+        - authelia-scripts docker build --arch=$ARCH
+        - kill %1
+      after_success:
+        - authelia-scripts docker push-image --arch=$ARCH
+    - <<: *build-images
+      env:
+        - ARCH=arm32v7
+    - <<: *build-images
+      env:
+        - ARCH=arm64v8
+    - stage: deploy manifests
+      env:
+        - DOCKER_CLI_EXPERIMENTAL=enabled
+      install: skip
+      script:
+        - authelia-scripts docker push-manifest
 
 notifications:
   email:

Dockerfile

@@ -10,7 +10,7 @@ WORKDIR /go/src/app
 COPY . .
 
 # CGO_ENABLED=1 is mandatory for building go-sqlite3
-RUN cd cmd/authelia && GOOS=linux GOARCH=amd64 CGO_ENABLED=1 go build -o authelia
+RUN cd cmd/authelia && GOOS=linux GOARCH=amd64 CGO_ENABLED=1 go build -tags netgo -ldflags '-w' -o authelia
 
 
 # ========================================

Dockerfile.arm32v7

@@ -0,0 +1,48 @@
+# =======================================
+# ===== Build image for the backend =====
+# =======================================
+FROM arm32v7/golang:1.13-alpine AS builder-backend
+
+# qemu binary, gcc and musl-dev are required for building go-sqlite3
+COPY ./qemu-arm-static /usr/bin/qemu-arm-static
+RUN apk --no-cache add gcc musl-dev
+
+WORKDIR /go/src/app
+COPY . .
+
+# CGO_ENABLED=1 is mandatory for building go-sqlite3
+RUN cd cmd/authelia && GOOS=linux GOARCH=arm CGO_ENABLED=1 go build -tags netgo -ldflags '-w' -o authelia
+
+
+# ========================================
+# ===== Build image for the frontend =====
+# ========================================
+FROM node:11-alpine AS builder-frontend
+
+WORKDIR /node/src/app
+COPY client .
+
+# Install the dependencies and build
+RUN npm ci && npm run build
+
+# ===================================
+# ===== Authelia official image =====
+# ===================================
+FROM arm32v7/alpine:3.10.3
+
+COPY ./qemu-arm-static /usr/bin/qemu-arm-static
+
+RUN apk --no-cache add ca-certificates tzdata && \
+    rm /usr/bin/qemu-arm-static
+
+WORKDIR /usr/app
+
+COPY --from=builder-backend /go/src/app/cmd/authelia/authelia authelia
+COPY --from=builder-frontend /node/src/app/build public_html
+
+EXPOSE 9091
+
+VOLUME /etc/authelia
+VOLUME /var/lib/authelia
+
+CMD ["./authelia", "-config", "/etc/authelia/config.yml"]

Dockerfile.arm64v8

@@ -0,0 +1,48 @@
+# =======================================
+# ===== Build image for the backend =====
+# =======================================
+FROM arm64v8/golang:1.13-alpine AS builder-backend
+
+# qemu binary, gcc and musl-dev are required for building go-sqlite3
+COPY ./qemu-aarch64-static /usr/bin/qemu-aarch64-static
+RUN apk --no-cache add gcc musl-dev
+
+WORKDIR /go/src/app
+COPY . .
+
+# CGO_ENABLED=1 is mandatory for building go-sqlite3
+RUN cd cmd/authelia && GOOS=linux GOARCH=arm64 CGO_ENABLED=1 go build -tags netgo -ldflags '-w' -o authelia
+
+
+# ========================================
+# ===== Build image for the frontend =====
+# ========================================
+FROM node:11-alpine AS builder-frontend
+
+WORKDIR /node/src/app
+COPY client .
+
+# Install the dependencies and build
+RUN npm ci && npm run build
+
+# ===================================
+# ===== Authelia official image =====
+# ===================================
+FROM arm64v8/alpine:3.10.3
+
+COPY ./qemu-aarch64-static /usr/bin/qemu-aarch64-static
+
+RUN apk --no-cache add ca-certificates tzdata && \
+    rm /usr/bin/qemu-aarch64-static
+
+WORKDIR /usr/app
+
+COPY --from=builder-backend /go/src/app/cmd/authelia/authelia authelia
+COPY --from=builder-frontend /node/src/app/build public_html
+
+EXPOSE 9091
+
+VOLUME /etc/authelia
+VOLUME /var/lib/authelia
+
+CMD ["./authelia", "-config", "/etc/authelia/config.yml"]

cmd/authelia-scripts/cmd_bootstrap.go

@@ -94,7 +94,7 @@ func shell(cmd string) {
 	runCommand("bash", "-c", cmd)
 }
 
-func buildDockerImages() {
+func buildHelperDockerImages() {
 	shell("docker build -t authelia-example-backend example/compose/nginx/backend")
 	shell("docker build -t authelia-duo-api example/compose/duo-api")
 }
@@ -210,8 +210,8 @@ func Bootstrap(cobraCmd *cobra.Command, args []string) {
 	installClientNpmPackages()
 
 	bootstrapPrintln("Building development Docker images...")
-	buildDockerImages()
-	DockerBuildOfficialImage()
+	buildHelperDockerImages()
+	dockerBuildOfficialImage(defaultArch)
 
 	bootstrapPrintln("Installing Kubernetes dependencies for testing in /tmp... (no junk installed on host)")
 	installKubernetesDependencies()

cmd/authelia-scripts/cmd_ci.go

@@ -41,14 +41,6 @@ func RunCI(cmd *cobra.Command, args []string) {
 		panic(err)
 	}
 
-	fmt.Println("===== Docker image build stage =====")
-	command = CommandWithStdout("authelia-scripts", "docker", "build")
-	err = command.Run()
-
-	if err != nil {
-		panic(err)
-	}
-
 	fmt.Println("===== End-to-end testing stage =====")
 	command = CommandWithStdout("authelia-scripts", "suites", "test", "--headless", "--only-forbidden")
 	err = command.Run()

cmd/authelia-scripts/cmd_docker.go

@@ -5,13 +5,67 @@ import (
 	"fmt"
 	"log"
 	"os"
+	"strings"
 
 	"github.com/spf13/cobra"
 )
 
-func DockerBuildOfficialImage() error {
+var arch string
+var supportedArch = []string{"amd64", "arm32v7", "arm64v8"}
+var defaultArch = "amd64"
+
+func init() {
+	DockerBuildCmd.PersistentFlags().StringVar(&arch, "arch", defaultArch, "target architecture among: "+strings.Join(supportedArch, ", "))
+	DockerPushCmd.PersistentFlags().StringVar(&arch, "arch", defaultArch, "target architecture among: "+strings.Join(supportedArch, ", "))
+
+}
+
+func checkArchIsSupported(arch string) {
+	for _, a := range supportedArch {
+		if arch == a {
+			return
+		}
+	}
+	log.Fatal("Architecture is not supported. Please select one of " + strings.Join(supportedArch, ", ") + ".")
+}
+
+func dockerBuildOfficialImage(arch string) error {
 	docker := &Docker{}
-	return docker.Build(IntermediateDockerImageName, ".")
+	// Set default Architecture Dockerfile to amd64
+	dockerfile := "Dockerfile"
+
+	// If not the default value
+	if arch != defaultArch {
+		dockerfile = fmt.Sprintf("%s.%s", dockerfile, arch)
+	}
+
+	if arch == "arm32v7" {
+		err := CommandWithStdout("docker", "run", "--rm", "--privileged", "multiarch/qemu-user-static", "--reset", "-p", "yes").Run()
+
+		if err != nil {
+			panic(err)
+		}
+
+		err = CommandWithStdout("bash", "-c", "wget https://github.com/multiarch/qemu-user-static/releases/download/v4.1.0-1/qemu-arm-static -O ./qemu-arm-static && chmod +x ./qemu-arm-static").Run()
+
+		if err != nil {
+			panic(err)
+		}
+	} else if arch == "arm64v8" {
+		err := CommandWithStdout("docker", "run", "--rm", "--privileged", "multiarch/qemu-user-static", "--reset", "-p", "yes").Run()
+
+		if err != nil {
+			panic(err)
+		}
+
+		err = CommandWithStdout("bash", "-c", "wget https://github.com/multiarch/qemu-user-static/releases/download/v4.1.0-1/qemu-aarch64-static -O ./qemu-aarch64-static && chmod +x ./qemu-aarch64-static").Run()
+
+		if err != nil {
+			panic(err)
+		}
+	}
+
+	return docker.Build(IntermediateDockerImageName, dockerfile, ".")
 }
 
 // DockerBuildCmd Command for building docker image of Authelia.
@@ -19,7 +73,8 @@ var DockerBuildCmd = &cobra.Command{
 	Use:   "build",
 	Short: "Build the docker image of Authelia",
 	Run: func(cmd *cobra.Command, args []string) {
-		err := DockerBuildOfficialImage()
+		checkArchIsSupported(arch)
+		err := dockerBuildOfficialImage(arch)
 
 		if err != nil {
 			log.Fatal(err)
@@ -36,10 +91,20 @@ var DockerBuildCmd = &cobra.Command{
 
 // DockerPushCmd Command for pushing Authelia docker image to Dockerhub
 var DockerPushCmd = &cobra.Command{
-	Use:   "publish",
+	Use:   "push-image",
 	Short: "Publish Authelia docker image to Dockerhub",
 	Run: func(cmd *cobra.Command, args []string) {
-		publishDockerImage()
+		checkArchIsSupported(arch)
+		publishDockerImage(arch)
+	},
+}
+
+// DockerManifestCmd Command for pushing Authelia docker manifest to Dockerhub
+var DockerManifestCmd = &cobra.Command{
+	Use:   "push-manifest",
+	Short: "Publish Authelia docker manifest to Dockerhub",
+	Run: func(cmd *cobra.Command, args []string) {
+		publishDockerManifest()
 	},
 }
 
@@ -76,14 +141,33 @@ func deploy(docker *Docker, tag string) {
 		panic(err)
 	}
 
-	docker.Push(imageWithTag)
+	err = docker.Push(imageWithTag)
 
 	if err != nil {
 		panic(err)
 	}
 }
 
-func publishDockerImage() {
+func deployManifest(docker *Docker, tag string, amd64tag string, arm32v7tag string, arm64v8tag string) {
+	imageWithTag := DockerImageName + ":" + tag
+	fmt.Println("===================================================")
+	fmt.Println("Docker manifest " + imageWithTag + " will be deployed on Dockerhub.")
+	fmt.Println("===================================================")
+
+	err := docker.Tag(DockerImageName, imageWithTag)
+
+	if err != nil {
+		panic(err)
+	}
+
+	err = docker.Manifest(imageWithTag, amd64tag, arm32v7tag, arm64v8tag)
+
+	if err != nil {
+		panic(err)
+	}
+}
+
+func publishDockerImage(arch string) {
 	docker := &Docker{}
 
 	travisBranch := os.Getenv("TRAVIS_BRANCH")
@@ -92,12 +176,31 @@ func publishDockerImage() {
 
 	if travisBranch == "master" && travisPullRequest == "false" {
 		login(docker)
-		deploy(docker, "master")
+		deploy(docker, "master-"+arch)
 	} else if travisTag != "" {
 		login(docker)
-		deploy(docker, travisTag)
-		deploy(docker, "latest")
+		deploy(docker, travisTag+"-"+arch)
+		deploy(docker, "latest-"+arch)
 	} else {
-		fmt.Println("Docker image will not be built")
+		fmt.Println("Docker image will not be published")
+	}
+}
+
+func publishDockerManifest() {
+	docker := &Docker{}
+
+	travisBranch := os.Getenv("TRAVIS_BRANCH")
+	travisPullRequest := os.Getenv("TRAVIS_PULL_REQUEST")
+	travisTag := os.Getenv("TRAVIS_TAG")
+
+	if travisBranch == "master" && travisPullRequest == "false" {
+		login(docker)
+		deployManifest(docker, "master", "master-amd64", "master-arm32v7", "master-arm64v8")
+	} else if travisTag != "" {
+		login(docker)
+		deployManifest(docker, travisTag, travisTag+"-amd64", travisTag+"-arm32v7", travisTag+"-arm64v8")
+		deployManifest(docker, "latest", "latest-amd64", "latest-arm32v7", "latest-arm64v8")
+	} else {
+		fmt.Println("Docker manifest will not be published")
 	}
 }

cmd/authelia-scripts/docker.go

@@ -4,8 +4,8 @@ package main
 type Docker struct{}
 
 // Build build a docker image
-func (d *Docker) Build(tag string, target string) error {
-	return CommandWithStdout("docker", "build", "-t", tag, target).Run()
+func (d *Docker) Build(tag string, dockerfile string, target string) error {
+	return CommandWithStdout("docker", "build", "-t", tag, "-f", dockerfile, target).Run()
 }
 
 // Tag tag a docker image.
@@ -22,3 +22,26 @@ func (d *Docker) Login(username, password string) error {
 func (d *Docker) Push(tag string) error {
 	return CommandWithStdout("docker", "push", tag).Run()
 }
+
+// Manifest push a docker manifest to dockerhub.
+func (d *Docker) Manifest(tag string, amd64tag string, arm32v7tag string, arm64v8tag string) error {
+	err := CommandWithStdout("docker", "manifest", "create", tag, amd64tag, arm32v7tag, arm64v8tag).Run()
+
+	if err != nil {
+		panic(err)
+	}
+
+	err = CommandWithStdout("docker", "manifest", "annotate", tag, arm32v7tag, "--os", "linux", "--arch", "arm").Run()
+
+	if err != nil {
+		panic(err)
+	}
+
+	err = CommandWithStdout("docker", "manifest", "annotate", tag, arm64v8tag, "--os", "linux", "--arch", "arm64", "--variant", "v8").Run()
+
+	if err != nil {
+		panic(err)
+	}
+
+	return CommandWithStdout("docker", "manifest", "push", "--purge", tag).Run()
+}

cmd/authelia-scripts/main.go

@@ -42,7 +42,7 @@ var Commands = []AutheliaCommandDefinition{
 	AutheliaCommandDefinition{
 		Name:        "docker",
 		Short:       "Commands related to building and publishing docker image",
-		SubCommands: CobraCommands{DockerBuildCmd, DockerPushCmd},
+		SubCommands: CobraCommands{DockerBuildCmd, DockerPushCmd, DockerManifestCmd},
 	},
 	AutheliaCommandDefinition{
 		Name:  "hash-password [password]",