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package integration
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"syscall"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
func canExec() bool {
const nsGetParent = 0xb702
u, err := os.Open("/proc/self/ns/user")
if err != nil {
return false
}
defer u.Close()
_, _, errno := syscall.Syscall(syscall.SYS_IOCTL, u.Fd(), uintptr(nsGetParent), 0)
return errno != syscall.ENOTTY
}
var _ = Describe("Podman rootless", func() {
var (
tempdir string
err error
podmanTest PodmanTest
)
BeforeEach(func() {
tempdir, err = CreateTempDirInTempDir()
if err != nil {
os.Exit(1)
}
podmanTest = PodmanCreate(tempdir)
podmanTest.RestoreAllArtifacts()
})
AfterEach(func() {
podmanTest.Cleanup()
f := CurrentGinkgoTestDescription()
timedResult := fmt.Sprintf("Test: %s completed in %f seconds", f.TestText, f.Duration.Seconds())
GinkgoWriter.Write([]byte(timedResult))
})
It("podman rootless help|version", func() {
commands := []string{"help", "version"}
for _, v := range commands {
env := os.Environ()
cmd := podmanTest.PodmanAsUser([]string{v}, 1000, 1000, env)
cmd.WaitWithDefaultTimeout()
Expect(cmd.ExitCode()).To(Equal(0))
}
})
runRootless := func(args []string) {
// Check if we can create an user namespace
err := exec.Command("unshare", "-r", "echo", "hello").Run()
if err != nil {
Skip("User namespaces not supported.")
}
setup := podmanTest.Podman([]string{"create", ALPINE, "ls"})
setup.WaitWithDefaultTimeout()
Expect(setup.ExitCode()).To(Equal(0))
cid := setup.OutputToString()
mount := podmanTest.Podman([]string{"mount", cid})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
mountPath := mount.OutputToString()
chownFunc := func(p string, info os.FileInfo, err error) error {
if err != nil {
return err
}
return os.Lchown(p, 1000, 1000)
}
err = filepath.Walk(tempdir, chownFunc)
if err != nil {
fmt.Printf("cannot chown the directory: %q\n", err)
os.Exit(1)
}
runRootless := func(mountPath string) {
tempdir, err := CreateTempDirInTempDir()
Expect(err).To(BeNil())
podmanTest := PodmanCreate(tempdir)
err = filepath.Walk(tempdir, chownFunc)
Expect(err).To(BeNil())
xdgRuntimeDir, err := ioutil.TempDir("/run", "")
Expect(err).To(BeNil())
defer os.RemoveAll(xdgRuntimeDir)
err = filepath.Walk(xdgRuntimeDir, chownFunc)
Expect(err).To(BeNil())
home, err := CreateTempDirInTempDir()
Expect(err).To(BeNil())
err = filepath.Walk(xdgRuntimeDir, chownFunc)
Expect(err).To(BeNil())
env := os.Environ()
env = append(env, fmt.Sprintf("XDG_RUNTIME_DIR=%s", xdgRuntimeDir))
env = append(env, fmt.Sprintf("HOME=%s", home))
env = append(env, "PODMAN_ALLOW_SINGLE_ID_MAPPING_IN_USERNS=1")
allArgs := append([]string{"run"}, args...)
allArgs = append(allArgs, "--rootfs", mountPath, "echo", "hello")
cmd := podmanTest.PodmanAsUser(allArgs, 1000, 1000, env)
cmd.WaitWithDefaultTimeout()
Expect(cmd.ExitCode()).To(Equal(0))
Expect(cmd.LineInOutputContains("hello")).To(BeTrue())
cmd = podmanTest.PodmanAsUser([]string{"rm", "-l", "-f"}, 1000, 1000, env)
cmd.WaitWithDefaultTimeout()
Expect(cmd.ExitCode()).To(Equal(0))
allArgs = append([]string{"run", "-d"}, args...)
allArgs = append(allArgs, "--security-opt", "seccomp=unconfined", "--rootfs", mountPath, "unshare", "-r", "unshare", "-r", "top")
cmd = podmanTest.PodmanAsUser(allArgs, 1000, 1000, env)
cmd.WaitWithDefaultTimeout()
Expect(cmd.ExitCode()).To(Equal(0))
if !canExec() {
Skip("ioctl(NS_GET_PARENT) not supported.")
}
cmd = podmanTest.PodmanAsUser([]string{"exec", "-l", "echo", "hello"}, 1000, 1000, env)
cmd.WaitWithDefaultTimeout()
Expect(cmd.ExitCode()).To(Equal(0))
Expect(cmd.LineInOutputContains("hello")).To(BeTrue())
}
runRootless(mountPath)
umount := podmanTest.Podman([]string{"umount", cid})
umount.WaitWithDefaultTimeout()
Expect(umount.ExitCode()).To(Equal(0))
}
It("podman rootless rootfs", func() {
runRootless([]string{})
})
It("podman rootless rootfs --net host", func() {
runRootless([]string{"--net", "host"})
})
It("podman rootless rootfs --privileged", func() {
runRootless([]string{"--privileged"})
})
It("podman rootless rootfs --net host --privileged", func() {
runRootless([]string{"--net", "host", "--privileged"})
})
It("podman rootless rootfs --uts host", func() {
runRootless([]string{"--uts", "host"})
})
})
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