fix: add support for "host:port" forwardPorts syntax

fixes: #305

e2e/e2e_suite_test.go

@@ -5,6 +5,8 @@ import (
 	"testing"
 	"time"
 
+	"github.com/loft-sh/devpod/e2e/framework"
+
 	"github.com/onsi/ginkgo/v2"
 
 	"github.com/onsi/gomega"
@@ -24,5 +26,11 @@ import (
 func TestRunE2ETests(t *testing.T) {
 	rand.Seed(time.Now().UTC().UnixNano())
 	gomega.RegisterFailHandler(ginkgo.Fail)
+	go func() {
+		err := framework.StartAgentServer()
+		if err != nil {
+			t.Error(err)
+		}
+	}()
 	ginkgo.RunSpecs(t, "DevPod e2e suite")
 }

e2e/framework/agent_server.go

@@ -0,0 +1,33 @@
+package framework
+
+import (
+	"net"
+	"net/http"
+	"os"
+	"path/filepath"
+)
+
+const agentServerPort = "9191"
+
+func StartAgentServer() error {
+	wd, err := os.Getwd()
+	if err != nil {
+		return err
+	}
+
+	listener, err := net.Listen("tcp", ":"+agentServerPort)
+	if err != nil {
+		return err
+	}
+
+	err = os.Setenv("DEVPOD_AGENT_URL", "http://localhost:"+agentServerPort)
+	if err != nil {
+		return err
+	}
+
+	if err := http.Serve(listener, http.FileServer(http.Dir(filepath.Join(wd, "bin")))); err != nil {
+		return err
+	}
+
+	return nil
+}

e2e/tests/up/testdata/docker-compose-forward-ports/.devcontainer.json

@@ -0,0 +1,12 @@
+{
+	"name": "Go",
+	"dockerComposeFile": "./docker-compose.yaml",
+	"service": "app",
+	"runServices": ["nginx"],
+	"workspaceFolder": "/workspaces",
+	"forwardPorts": [
+		4000,
+		"3000",
+		"nginx:8989"
+	]
+}

e2e/tests/up/testdata/docker-compose-forward-ports/docker-compose.yaml

@@ -0,0 +1,12 @@
+version: '3'
+
+services:
+  app:
+    image: mcr.microsoft.com/devcontainers/go:0-1.19-bullseye
+    command: sleep infinity
+    volumes:
+      - .:/workspaces:cached
+  nginx:
+    image: nginx
+    ports:
+      - "8989:80"