Add dockerfile

Dockerfile

@@ -0,0 +1,18 @@
+# syntax=docker/dockerfile:1
+
+FROM golang:1.21 as build
+
+COPY . /root
+WORKDIR /root
+
+# Build
+RUN CGO_ENABLED=0 GOOS=linux go build -o /durabletask-go
+
+FROM gcr.io/distroless/static-debian12:nonroot
+COPY --from=build /durabletask-go /
+
+EXPOSE 4001
+
+# Run
+ENTRYPOINT [ "/durabletask-go" ]
+CMD [ "--host", "0.0.0.0", "--port", "4001" ]

main.go

@@ -15,6 +15,7 @@ import (
 
 var (
 	port       = flag.Int("port", 4001, "The server port")
+	host       = flag.String("host", "localhost", "The host to bind to")
 	dbFilePath = flag.String("db", "", "The path to the sqlite file to use (or create if not exists)")
 	ctx        = context.Background()
 )
@@ -29,7 +30,7 @@ func main() {
 		log.Fatalf("failed to start worker: %v", err)
 	}
 
-	lis, err := net.Listen("tcp", fmt.Sprintf("localhost:%d", *port))
+	lis, err := net.Listen("tcp", fmt.Sprintf("%s:%d", *host, *port))
 	if err != nil {
 		log.Fatalf("failed to listen: %v", err)
 	}