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- // +build experimental
- package main
- import (
- "fmt"
- "io/ioutil"
- "os"
- "os/exec"
- "path/filepath"
- "strconv"
- "strings"
- "github.com/docker/docker/pkg/integration/checker"
- "github.com/docker/docker/pkg/system"
- "github.com/go-check/check"
- )
- func (s *DockerSuite) TestExperimentalVersion(c *check.C) {
- out, _ := dockerCmd(c, "version")
- for _, line := range strings.Split(out, "\n") {
- if strings.HasPrefix(line, "Experimental (client):") || strings.HasPrefix(line, "Experimental (server):") {
- c.Assert(line, checker.Matches, "*true")
- }
- }
- out, _ = dockerCmd(c, "-v")
- c.Assert(out, checker.Contains, ", experimental", check.Commentf("docker version did not contain experimental"))
- }
- // user namespaces test: run daemon with remapped root setting
- // 1. validate uid/gid maps are set properly
- // 2. verify that files created are owned by remapped root
- func (s *DockerDaemonSuite) TestDaemonUserNamespaceRootSetting(c *check.C) {
- testRequires(c, DaemonIsLinux, SameHostDaemon)
- c.Assert(s.d.StartWithBusybox("--userns-remap", "default"), checker.IsNil)
- tmpDir, err := ioutil.TempDir("", "userns")
- c.Assert(err, checker.IsNil)
- defer os.RemoveAll(tmpDir)
- // we need to find the uid and gid of the remapped root from the daemon's root dir info
- uidgid := strings.Split(filepath.Base(s.d.root), ".")
- c.Assert(uidgid, checker.HasLen, 2, check.Commentf("Should have gotten uid/gid strings from root dirname: %s", filepath.Base(s.d.root)))
- uid, err := strconv.Atoi(uidgid[0])
- c.Assert(err, checker.IsNil, check.Commentf("Can't parse uid"))
- gid, err := strconv.Atoi(uidgid[1])
- c.Assert(err, checker.IsNil, check.Commentf("Can't parse gid"))
- //writeable by the remapped root UID/GID pair
- c.Assert(os.Chown(tmpDir, uid, gid), checker.IsNil)
- out, err := s.d.Cmd("run", "-d", "--name", "userns", "-v", tmpDir+":/goofy", "busybox", "sh", "-c", "touch /goofy/testfile; top")
- c.Assert(err, checker.IsNil, check.Commentf("Output: %s", out))
- pid, err := s.d.Cmd("inspect", "--format='{{.State.Pid}}'", "userns")
- c.Assert(err, checker.IsNil, check.Commentf("Could not inspect running container: out: %q", pid))
- // check the uid and gid maps for the PID to ensure root is remapped
- // (cmd = cat /proc/<pid>/uid_map | grep -E '0\s+9999\s+1')
- out, rc1, err := runCommandPipelineWithOutput(
- exec.Command("cat", "/proc/"+strings.TrimSpace(pid)+"/uid_map"),
- exec.Command("grep", "-E", fmt.Sprintf("0[[:space:]]+%d[[:space:]]+", uid)))
- c.Assert(rc1, checker.Equals, 0, check.Commentf("Didn't match uid_map: output: %s", out))
- out, rc2, err := runCommandPipelineWithOutput(
- exec.Command("cat", "/proc/"+strings.TrimSpace(pid)+"/gid_map"),
- exec.Command("grep", "-E", fmt.Sprintf("0[[:space:]]+%d[[:space:]]+", gid)))
- c.Assert(rc2, checker.Equals, 0, check.Commentf("Didn't match gid_map: output: %s", out))
- // check that the touched file is owned by remapped uid:gid
- stat, err := system.Stat(filepath.Join(tmpDir, "testfile"))
- c.Assert(err, checker.IsNil)
- c.Assert(stat.UID(), checker.Equals, uint32(uid), check.Commentf("Touched file not owned by remapped root UID"))
- c.Assert(stat.GID(), checker.Equals, uint32(gid), check.Commentf("Touched file not owned by remapped root GID"))
- }
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