Add crossplatform docker builds (#283)

go.mod

@@ -9,6 +9,7 @@ require (
 	github.com/Ullaakut/nmap v2.0.0+incompatible
 	github.com/VividCortex/ewma v1.1.1 // indirect
 	github.com/fatih/color v1.7.0 // indirect
+	github.com/magefile/mage v1.11.0 // indirect
 	github.com/mattn/go-colorable v0.1.2 // indirect
 	github.com/spf13/pflag v1.0.3
 	github.com/spf13/viper v1.4.0

go.sum

@@ -65,6 +65,8 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/magefile/mage v1.11.0 h1:C/55Ywp9BpgVVclD3lRnSYCwXTYxmSppIgLeDYlNuls=
+github.com/magefile/mage v1.11.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
 github.com/magiconair/properties v1.8.0 h1:LLgXmsheXeRoUOBOjtwPQCWIYqM/LU1ayDtDePerRcY=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/mattn/go-colorable v0.1.2 h1:/bC9yWikZXAL9uJdulbSfyVNIR3n3trXl+v8+1sx8mU=

tools/xplatform-docker-build/magefile.go

@@ -0,0 +1,109 @@
+//+build mage
+
+package main
+
+import (
+	"os"
+
+	"github.com/magefile/mage/sh"
+	"github.com/Ullaakut/disgo"
+	"github.com/Ullaakut/disgo/style"
+)
+
+var supportedPlatforms = map[string]string{
+	"linux/amd64": "ullaakut/cameradar:amd64",
+	"linux/386": "ullaakut/cameradar:386",
+	"linux/arm64": "ullaakut/cameradar:arm64",
+	"linux/arm/v7": "ullaakut/cameradar:armv7",
+	//"linux/riscv64": "ullaakut/cameradar:riscv64", // UNSUPPORTED.
+	//"linux/ppc64le": "ullaakut/cameradar:ppc64le", // UNSUPPORTED.
+	//"linux/s390x": "ullaakut/cameradar:s390x", // UNSUPPORTED.
+	//"linux/arm/v6": "ullaakut/cameradar:armv6", // UNSUPPORTED.
+}
+
+var Default = Build
+
+// Follows https://www.docker.com/blog/multi-platform-docker-builds/.
+func Build() error {
+	term := disgo.NewTerminal(disgo.WithColors(true))
+
+	term.StartStep("Building images for all platforms")
+	term.Infof("Builds planned for %v\n", supportedPlatforms)
+	for platform, name := range supportedPlatforms {
+		term.Infoln("Building image for", platform, "at", name)
+
+		// docker buildx build --platform linux/arm/v7 -t ullaakut/cameradar:armv7 .
+		if err := sh.Run("docker", "buildx", "build", "--platform", platform, "-t", name, "../../"); err != nil {
+			return term.FailStepf("unable to build image: %v", err)
+		}
+	}
+
+	term.Infoln(style.Success("Cross-platform docker build successful."))
+
+	return nil
+}
+
+func Publish() error {
+	term := disgo.NewTerminal(disgo.WithColors(true))
+
+	term.StartStep("Pushing images to DockerHub")
+	term.Infoln("Pushing ullaakut/cameradar:latest")
+	if err := sh.Run("docker", "push", "ullaakut/cameradar:latest"); err != nil {
+		return term.FailStepf("unable to push latest docker images to docker hub: %v", err)
+	}
+
+	if version, exists := os.LookupEnv("CAMERADAR_VERSION"); exists {
+		term.Infoln("Pushing ullaakut/cameradar:"+version)
+		if err := sh.Run("docker", "push", "ullaakut/cameradar:"+version); err != nil {
+			return term.FailStepf("unable to push versionned docker images to docker hub: %v", err)
+		}
+	}
+
+	term.StartStep("Pushing images to GitHub Packages")
+	term.Infoln("Pushing docker.pkg.github.com/ullaakut/cameradar/cameradar:latest")
+	if err := sh.Run("docker", "tag", "ullaakut/cameradar:latest", "docker.pkg.github.com/ullaakut/cameradar/cameradar:latest"); err != nil {
+		return term.FailStepf("unable to push latest docker images to docker hub: %v", err)
+	}
+	if err := sh.Run("docker", "push", "docker.pkg.github.com/ullaakut/cameradar/cameradar:latest"); err != nil {
+		return term.FailStepf("unable to push latest docker images to docker hub: %v", err)
+	}
+
+	if version, exists := os.LookupEnv("CAMERADAR_VERSION"); exists {
+		term.Infoln("Pushing docker.pkg.github.com/ullaakut/cameradar/cameradar:"+version)
+		if err := sh.Run("docker", "tag", "ullaakut/cameradar:"+version, "docker.pkg.github.com/ullaakut/cameradar/cameradar:"+version); err != nil {
+			return term.FailStepf("unable to push latest docker images to docker hub: %v", err)
+		}
+		if err := sh.Run("docker", "push", "ullaakut/cameradar:"+version); err != nil {
+			return term.FailStepf("unable to push versionned docker images to docker hub: %v", err)
+		}
+	}
+
+	term.StartStep("Creating manifest(s) for cross platform builds")
+
+	var manifestImages []string
+	for _, image := range supportedPlatforms {
+		manifestImages = append(manifestImages, image)
+	}
+
+	args := []string{"manifest", "create", "--amend", "ullaakut/cameradar:latest"}
+	args = append(args, manifestImages...)
+
+	// docker manifest create ullaakut/cameradar:latest ullaakut/cameradar:amd64 ullaakut/cameradar:armv7 [...]
+	if err := sh.Run("docker", args...); err != nil {
+		return term.FailStepf("unable to create manifest: %v", err)
+	}
+
+	if version, exists := os.LookupEnv("CAMERADAR_VERSION"); exists {
+		args = []string{"manifest", "create", "--amend", "ullaakut/cameradar:"+version}
+		args = append(args, manifestImages...)
+
+		if err := sh.Run("docker", args...); err != nil {
+			return term.FailStepf("unable to create manifest: %v", err)
+		}
+	}
+	term.EndStep()
+
+	term.Infoln(style.Success("Images published successfully."))
+
+	return nil
+}