Multiarch Docker Build (#104) (#129)

* Improved Makefile
* Multiarch Docker build (amd64, arm64 and armv7)
* closes #104

cmd/hc/main.go

@@ -0,0 +1,35 @@
+// source taken from https://git.prolicht.digital/golib/healthcheck/-/blob/master/cmd/hc/main.go
+
+package main
+
+import (
+	"net/http"
+	"os"
+	"time"
+)
+
+// main checks the given URL, if the response is not 200, it will return with exit code 1
+// on success, exit code 0 will be returned
+func main() {
+	os.Exit(checkWebEndpointFromArgs())
+}
+
+func checkWebEndpointFromArgs() int {
+	if len(os.Args) < 2 {
+		return 1
+	}
+	if status := checkWebEndpoint(os.Args[1]); !status {
+		return 1
+	}
+	return 0
+}
+
+func checkWebEndpoint(url string) bool {
+	client := &http.Client{
+		Timeout: time.Second * 2,
+	}
+	if resp, err := client.Get(url); err != nil || resp.StatusCode < 200 || resp.StatusCode > 299 {
+		return false
+	}
+	return true
+}

cmd/wg-portal/main.go

@@ -5,10 +5,11 @@ import (
 	"io/ioutil"
 	"os"
 	"os/signal"
+	"runtime"
 	"syscall"
 	"time"
 
-	"git.prolicht.digital/pub/healthcheck"
+	"git.prolicht.digital/golib/healthcheck"
 	"github.com/h44z/wg-portal/internal/server"
 	"github.com/sirupsen/logrus"
 )
@@ -19,6 +20,7 @@ func main() {
 	c := make(chan os.Signal, 1)
 	signal.Notify(c, syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP)
 
+	logrus.Infof("sysinfo: os=%s, arch=%s", runtime.GOOS, runtime.GOARCH)
 	logrus.Infof("starting WireGuard Portal Server [%s]...", server.Version)
 
 	// Context for clean shutdown
@@ -26,7 +28,7 @@ func main() {
 	defer cancel()
 
 	// start health check service on port 11223
-	healthcheck.New(healthcheck.WithContext(ctx)).Start()
+	healthcheck.New(healthcheck.ListenOn(":11223")).StartWithContext(ctx)
 
 	service := server.Server{}
 	if err := service.Setup(ctx); err != nil {