Implement publishing API UNIX socket on Windows platforms

gvproxy and win-sshproxy have capabilities to serve this type of enpoint.
This change only adds one additional API enpoint publishing by appending
proxy command lines.

Signed-off-by: Arthur Sengileyev <arthur.sengileyev@gmail.com>

pkg/machine/e2e/api_test.go

@@ -0,0 +1,96 @@
+package e2e_test
+
+import (
+	"context"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+
+	"github.com/containers/podman/v5/pkg/machine"
+	"github.com/docker/docker/client"
+	jsoniter "github.com/json-iterator/go"
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	. "github.com/onsi/gomega/gexec"
+)
+
+const (
+	NamedPipeProto = "npipe://"
+)
+
+var _ = Describe("run podman API test calls", func() {
+
+	It("client connect to machine socket", func() {
+		if runtime.GOOS == "windows" {
+			Skip("Go docker client doesn't support unix socket on Windows")
+		}
+		name := randomString()
+		i := new(initMachine)
+		session, err := mb.setName(name).setCmd(i.withImage(mb.imagePath).withNow()).run()
+		Expect(err).ToNot(HaveOccurred())
+		Expect(session).To(Exit(0))
+
+		inspectJSON := new(inspectMachine)
+		inspectSession, err := mb.setName(name).setCmd(inspectJSON).run()
+		Expect(err).ToNot(HaveOccurred())
+		Expect(inspectSession).To(Exit(0))
+
+		var inspectInfo []machine.InspectInfo
+		err = jsoniter.Unmarshal(inspectSession.Bytes(), &inspectInfo)
+		Expect(err).ToNot(HaveOccurred())
+		sockPath := inspectInfo[0].ConnectionInfo.PodmanSocket.GetPath()
+
+		cli, err := client.NewClientWithOpts(client.WithHost("unix://" + sockPath))
+		Expect(err).ToNot(HaveOccurred())
+		_, err = cli.Ping(context.Background())
+		Expect(err).ToNot(HaveOccurred())
+	})
+
+	It("client connect to machine named pipe", func() {
+		if runtime.GOOS != "windows" {
+			Skip("test is only supported on Windows")
+		}
+		name := randomString()
+		i := new(initMachine)
+		session, err := mb.setName(name).setCmd(i.withImage(mb.imagePath).withNow()).run()
+		Expect(err).ToNot(HaveOccurred())
+		Expect(session).To(Exit(0))
+
+		inspectJSON := new(inspectMachine)
+		inspectSession, err := mb.setName(name).setCmd(inspectJSON).run()
+		Expect(err).ToNot(HaveOccurred())
+		Expect(inspectSession).To(Exit(0))
+
+		var inspectInfo []machine.InspectInfo
+		err = jsoniter.Unmarshal(inspectSession.Bytes(), &inspectInfo)
+		Expect(err).ToNot(HaveOccurred())
+		pipePath := inspectInfo[0].ConnectionInfo.PodmanPipe.GetPath()
+
+		cli, err := client.NewClientWithOpts(client.WithHost(NamedPipeProto + filepath.ToSlash(pipePath)))
+		Expect(err).ToNot(HaveOccurred())
+		_, err = cli.Ping(context.Background())
+		Expect(err).ToNot(HaveOccurred())
+	})
+
+	It("curl connect to machine socket", func() {
+		name := randomString()
+		i := new(initMachine)
+		session, err := mb.setName(name).setCmd(i.withImage(mb.imagePath).withNow()).run()
+		Expect(err).ToNot(HaveOccurred())
+		Expect(session).To(Exit(0))
+
+		inspectJSON := new(inspectMachine)
+		inspectSession, err := mb.setName(name).setCmd(inspectJSON).run()
+		Expect(err).ToNot(HaveOccurred())
+		Expect(inspectSession).To(Exit(0))
+
+		var inspectInfo []machine.InspectInfo
+		err = jsoniter.Unmarshal(inspectSession.Bytes(), &inspectInfo)
+		Expect(err).ToNot(HaveOccurred())
+		sockPath := inspectInfo[0].ConnectionInfo.PodmanSocket.GetPath()
+
+		cmd := exec.Command("curl", "--unix-socket", sockPath, "http://d/v5.0.0/libpod/info")
+		err = cmd.Run()
+		Expect(err).ToNot(HaveOccurred())
+	})
+})