test: added helloworld service for testing multiple bindings

testing/docker-compose.yml

@@ -6,6 +6,54 @@ services:
     restart: unless-stopped
     ports:
       - 6380:6379
+
+  helloworld:
+    build:
+      dockerfile: ./helloworld/Dockerfile
+      context: ./
+    restart: unless-stopped
+    ports:
+      - 5555:5555
+      - 5566:5566
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.hello1.rule=Host(`hello1.local`)"
+      - "traefik.http.routers.hello1.service=hello1"
+      - "traefik.http.routers.hello1.tls=true"
+      - "traefik.http.routers.hello1.tls.certresolver=default"
+      - "traefik.http.services.hello1.loadbalancer.server.scheme=http"
+      - "traefik.http.services.hello1.loadbalancer.server.port=5555"
+      - "traefik.http.routers.hello2.rule=Host(`hello2.local`)"
+      - "traefik.http.routers.hello2.service=hello2"
+      - "traefik.http.routers.hello2.tls=true"
+      - "traefik.http.routers.hello2.tls.certresolver=default"
+      - "traefik.http.services.hello2.loadbalancer.server.scheme=http"
+      - "traefik.http.services.hello2.loadbalancer.server.port=5566"
+
+  # This service is the same as above except that it does not have a label
+  # which explicitly maps the port and so it fails to correctly determine which
+  # port to tell traefik to connect to. i.e., both services connect to 5555.
+  hellodetect:
+    build:
+      dockerfile: ./helloworld/Dockerfile
+      context: ./
+    restart: unless-stopped
+    ports:
+      - 5577:5555
+      - 5588:5566
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.hello-detect.rule=Host(`hello-detect.local`)"
+      - "traefik.http.routers.hello-detect.service=hello-detect"
+      - "traefik.http.routers.hello-detect.tls=true"
+      - "traefik.http.routers.hello-detect.tls.certresolver=default"
+      - "traefik.http.services.hello-detect.loadbalancer.server.scheme=http"
+      - "traefik.http.routers.hello-detect2.rule=Host(`hello-detect2.local`)"
+      - "traefik.http.routers.hello-detect2.service=hello-detect2"
+      - "traefik.http.routers.hello-detect2.tls=true"
+      - "traefik.http.routers.hello-detect2.tls.certresolver=default"
+      - "traefik.http.services.hello-detect2.loadbalancer.server.scheme=http"
+
   nginx:
     image: "nginx:alpine"
     restart: unless-stopped
@@ -23,6 +71,7 @@ services:
       - "traefik.http.routers.nginx.tls.certresolver=default"
       - "traefik.http.services.nginx.loadbalancer.server.scheme=http"
       - "traefik.http.services.nginx.loadbalancer.server.port=8088"
+
   pihole:
     image: "pihole/pihole:latest"
     restart: unless-stopped

testing/helloworld/Dockerfile

@@ -0,0 +1,6 @@
+FROM golang
+
+COPY * /go/
+RUN go build -o helloworld ./
+
+ENTRYPOINT ["./helloworld"]

testing/helloworld/main.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+)
+
+func main() {
+	mux := http.NewServeMux()
+	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		io.WriteString(w, "Hello from port 5555")
+	})
+	fmt.Println("listening on port 5555")
+	go http.ListenAndServe(":5555", mux)
+
+	mux2 := http.NewServeMux()
+	mux2.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		io.WriteString(w, "Hello from port 5566")
+	})
+	fmt.Println("listening on port 5566")
+	http.ListenAndServe(":5566", mux2)
+}