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|
package e2e
import (
"context"
"fmt"
"io"
"net"
"net/http"
"os"
"os/exec"
"path/filepath"
"runtime"
"time"
gvproxyclient "github.com/containers/gvisor-tap-vsock/pkg/client"
"github.com/containers/gvisor-tap-vsock/pkg/transport"
"github.com/containers/gvisor-tap-vsock/pkg/types"
"github.com/onsi/ginkgo"
"github.com/onsi/gomega"
log "github.com/sirupsen/logrus"
)
var _ = ginkgo.Describe("port forwarding", func() {
client := gvproxyclient.New(&http.Client{
Transport: &http.Transport{
DialContext: func(_ context.Context, _, _ string) (net.Conn, error) {
return net.Dial("unix", sock)
},
},
}, "http://base")
ginkgo.It("should reach a http server on the host", func() {
ln, err := net.Listen("tcp", "127.0.0.1:9090")
gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
defer ln.Close()
mux := http.NewServeMux()
mux.HandleFunc("/", func(writer http.ResponseWriter, _ *http.Request) {
_, _ = writer.Write([]byte("Hello from the host"))
})
go func() {
s := &http.Server{
Handler: mux,
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
}
err := s.Serve(ln)
if err != nil {
log.Error(err)
}
}()
out, err := sshExec("curl http://host.containers.internal:9090")
gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
gomega.Expect(string(out)).To(gomega.ContainSubstring("Hello from the host"))
out, err = sshExec("curl http://host.docker.internal:9090")
gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
gomega.Expect(string(out)).To(gomega.ContainSubstring("Hello from the host"))
})
ginkgo.It("should reach a http server in the VM using dynamic port forwarding", func() {
_, err := net.Dial("tcp", "127.0.0.1:9090")
gomega.Expect(err).Should(gomega.HaveOccurred())
gomega.Expect(err.Error()).To(gomega.HaveSuffix("connection refused"))
gomega.Expect(client.Expose(&types.ExposeRequest{
Local: "127.0.0.1:9090",
Remote: "192.168.127.2:8080",
})).Should(gomega.Succeed())
gomega.Eventually(func(g gomega.Gomega) {
resp, err := http.Get("http://127.0.0.1:9090")
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(resp.StatusCode).To(gomega.Equal(http.StatusOK))
}).Should(gomega.Succeed())
gomega.Expect(client.Unexpose(&types.UnexposeRequest{
Local: "127.0.0.1:9090",
})).Should(gomega.Succeed())
gomega.Eventually(func(g gomega.Gomega) {
_, err = net.Dial("tcp", "127.0.0.1:9090")
g.Expect(err).Should(gomega.HaveOccurred())
g.Expect(err.Error()).To(gomega.HaveSuffix("connection refused"))
}).Should(gomega.Succeed())
})
ginkgo.It("should reach a dns server in the VM using dynamic port forwarding", func() {
gomega.Expect(client.Expose(&types.ExposeRequest{
Local: ":1053",
Remote: "192.168.127.2:53",
Protocol: "udp",
})).Should(gomega.Succeed())
gomega.Eventually(func(g gomega.Gomega) {
cmd := exec.Command("nslookup", "-timeout=1", "-port=1053", "foobar", "127.0.0.1")
out, err := cmd.CombinedOutput()
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(string(out)).To(gomega.ContainSubstring("Address: 1.2.3.4"))
}).Should(gomega.Succeed())
gomega.Expect(client.Unexpose(&types.UnexposeRequest{
Local: ":1053",
Protocol: "udp",
})).Should(gomega.Succeed())
})
ginkgo.It("should reach a http server in the VM using the tunneling of the daemon", func() {
httpClient := &http.Client{
Transport: &http.Transport{
DialContext: func(_ context.Context, _, _ string) (net.Conn, error) {
conn, err := net.Dial("unix", sock)
if err != nil {
return nil, err
}
return conn, transport.Tunnel(conn, "192.168.127.2", 8080)
},
},
}
gomega.Eventually(func(g gomega.Gomega) {
resp, err := httpClient.Get("http://placeholder/")
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(resp.StatusCode).To(gomega.Equal(http.StatusOK))
}).Should(gomega.Succeed())
})
ginkgo.It("should reach a http server in the VM using dynamic port forwarding configured within the VM", func() {
_, err := net.Dial("tcp", "127.0.0.1:9090")
gomega.Expect(err).Should(gomega.HaveOccurred())
gomega.Expect(err.Error()).To(gomega.HaveSuffix("connection refused"))
_, err = sshExec(`curl http://gateway.containers.internal/services/forwarder/expose -X POST -d'{"local":":9090", "remote":":8080"}'`)
gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
gomega.Eventually(func(g gomega.Gomega) {
resp, err := http.Get("http://127.0.0.1:9090")
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(resp.StatusCode).To(gomega.Equal(http.StatusOK))
}).Should(gomega.Succeed())
_, err = sshExec(`curl http://gateway.containers.internal/services/forwarder/unexpose -X POST -d'{"local":":9090"}'`)
gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
gomega.Eventually(func(g gomega.Gomega) {
_, err = net.Dial("tcp", "127.0.0.1:9090")
g.Expect(err).Should(gomega.HaveOccurred())
g.Expect(err.Error()).To(gomega.HaveSuffix("connection refused"))
}).Should(gomega.Succeed())
})
ginkgo.It("should reach rootless podman API using unix socket forwarding over ssh", func() {
httpClient := &http.Client{
Transport: &http.Transport{
DialContext: func(_ context.Context, _, _ string) (net.Conn, error) {
return net.Dial("unix", forwardSock)
},
},
}
gomega.Eventually(func(g gomega.Gomega) {
resp, err := httpClient.Get("http://host/_ping")
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(resp.StatusCode).To(gomega.Equal(http.StatusOK))
g.Expect(resp.ContentLength).To(gomega.Equal(int64(2)))
reply := make([]byte, resp.ContentLength)
_, err = io.ReadAtLeast(resp.Body, reply, len(reply))
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(string(reply)).To(gomega.Equal("OK"))
}).Should(gomega.Succeed())
})
ginkgo.It("should reach rootful podman API using unix socket forwarding over ssh", func() {
httpClient := &http.Client{
Transport: &http.Transport{
DialContext: func(_ context.Context, _, _ string) (net.Conn, error) {
return net.Dial("unix", forwardRootSock)
},
},
}
gomega.Eventually(func(g gomega.Gomega) {
resp, err := httpClient.Get("http://host/_ping")
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(resp.StatusCode).To(gomega.Equal(http.StatusOK))
g.Expect(resp.ContentLength).To(gomega.Equal(int64(2)))
reply := make([]byte, resp.ContentLength)
_, err = io.ReadAtLeast(resp.Body, reply, len(reply))
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(string(reply)).To(gomega.Equal("OK"))
}).Should(gomega.Succeed())
})
ginkgo.It("should expose and reach an http service using unix to tcp forwarding", func() {
if runtime.GOOS == "windows" {
ginkgo.Skip("AF_UNIX not supported on Windows")
}
unix2tcpfwdsock, _ := filepath.Abs(filepath.Join(tmpDir, "podman-unix-to-unix-forwarding.sock"))
out, err := sshExec(`curl http://gateway.containers.internal/services/forwarder/expose -X POST -d'{"protocol":"unix","local":"` + unix2tcpfwdsock + `","remote":"tcp://192.168.127.2:8080"}'`)
gomega.Expect(string(out)).Should(gomega.Equal(""))
gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
gomega.Eventually(func(g gomega.Gomega) {
sockfile, err := os.Stat(unix2tcpfwdsock)
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(sockfile.Mode().Type().String()).To(gomega.Equal(os.ModeSocket.String()))
}).Should(gomega.Succeed())
httpClient := &http.Client{
Transport: &http.Transport{
DialContext: func(_ context.Context, _, _ string) (net.Conn, error) {
return net.Dial("unix", unix2tcpfwdsock)
},
},
}
gomega.Eventually(func(g gomega.Gomega) {
resp, err := httpClient.Get("http://placeholder/")
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(resp.StatusCode).To(gomega.Equal(http.StatusOK))
}).Should(gomega.Succeed())
})
ginkgo.It("should expose and reach rootless podman API using unix to unix forwarding over ssh", func() {
if runtime.GOOS == "windows" {
ginkgo.Skip("AF_UNIX not supported on Windows")
}
unix2unixfwdsock, _ := filepath.Abs(filepath.Join(tmpDir, "podman-unix-to-unix-forwarding.sock"))
remoteuri := fmt.Sprintf(`ssh-tunnel://root@%s:%d%s?key=%s`, "192.168.127.2", 22, podmanSock, privateKeyFile)
_, err := sshExec(`curl http://192.168.127.1/services/forwarder/expose -X POST -d'{"protocol":"unix","local":"` + unix2unixfwdsock + `","remote":"` + remoteuri + `"}'`)
gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
gomega.Eventually(func(g gomega.Gomega) {
sockfile, err := os.Stat(unix2unixfwdsock)
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(sockfile.Mode().Type().String()).To(gomega.Equal(os.ModeSocket.String()))
}).Should(gomega.Succeed())
httpClient := &http.Client{
Transport: &http.Transport{
DialContext: func(_ context.Context, _, _ string) (net.Conn, error) {
return net.Dial("unix", unix2unixfwdsock)
},
},
}
gomega.Eventually(func(g gomega.Gomega) {
resp, err := httpClient.Get("http://host/_ping")
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(resp.StatusCode).To(gomega.Equal(http.StatusOK))
g.Expect(resp.ContentLength).To(gomega.Equal(int64(2)))
reply := make([]byte, resp.ContentLength)
_, err = io.ReadAtLeast(resp.Body, reply, len(reply))
g.Expect(err).ShouldNot(gomega.HaveOccurred())
g.Expect(string(reply)).To(gomega.Equal("OK"))
}).Should(gomega.Succeed())
})
})
|
