| package main |
| |
| import ( |
| "strings" |
| "time" |
| |
| "github.com/docker/docker/integration-cli/checker" |
| "github.com/docker/docker/integration-cli/cli" |
| "github.com/go-check/check" |
| ) |
| |
| // ensure that an added file shows up in docker diff |
| func (s *DockerSuite) TestDiffFilenameShownInOutput(c *check.C) { |
| containerCmd := `mkdir /foo; echo xyzzy > /foo/bar` |
| out := cli.DockerCmd(c, "run", "-d", "busybox", "sh", "-c", containerCmd).Combined() |
| |
| // Wait for it to exit as cannot diff a running container on Windows, and |
| // it will take a few seconds to exit. Also there's no way in Windows to |
| // differentiate between an Add or a Modify, and all files are under |
| // a "Files/" prefix. |
| containerID := strings.TrimSpace(out) |
| lookingFor := "A /foo/bar" |
| if testEnv.DaemonPlatform() == "windows" { |
| cli.WaitExited(c, containerID, 60*time.Second) |
| lookingFor = "C Files/foo/bar" |
| } |
| |
| cleanCID := strings.TrimSpace(out) |
| out = cli.DockerCmd(c, "diff", cleanCID).Combined() |
| |
| found := false |
| for _, line := range strings.Split(out, "\n") { |
| if strings.Contains(line, lookingFor) { |
| found = true |
| break |
| } |
| } |
| c.Assert(found, checker.True) |
| } |
| |
| // test to ensure GH #3840 doesn't occur any more |
| func (s *DockerSuite) TestDiffEnsureInitLayerFilesAreIgnored(c *check.C) { |
| testRequires(c, DaemonIsLinux) |
| // this is a list of files which shouldn't show up in `docker diff` |
| initLayerFiles := []string{"/etc/resolv.conf", "/etc/hostname", "/etc/hosts", "/.dockerenv"} |
| containerCount := 5 |
| |
| // we might not run into this problem from the first run, so start a few containers |
| for i := 0; i < containerCount; i++ { |
| containerCmd := `echo foo > /root/bar` |
| out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", containerCmd) |
| |
| cleanCID := strings.TrimSpace(out) |
| out, _ = dockerCmd(c, "diff", cleanCID) |
| |
| for _, filename := range initLayerFiles { |
| c.Assert(out, checker.Not(checker.Contains), filename) |
| } |
| } |
| } |
| |
| func (s *DockerSuite) TestDiffEnsureDefaultDevs(c *check.C) { |
| testRequires(c, DaemonIsLinux) |
| out, _ := dockerCmd(c, "run", "-d", "busybox", "sleep", "0") |
| |
| cleanCID := strings.TrimSpace(out) |
| out, _ = dockerCmd(c, "diff", cleanCID) |
| |
| expected := map[string]bool{ |
| "C /dev": true, |
| "A /dev/full": true, // busybox |
| "C /dev/ptmx": true, // libcontainer |
| "A /dev/mqueue": true, |
| "A /dev/kmsg": true, |
| "A /dev/fd": true, |
| "A /dev/ptmx": true, |
| "A /dev/null": true, |
| "A /dev/random": true, |
| "A /dev/stdout": true, |
| "A /dev/stderr": true, |
| "A /dev/tty1": true, |
| "A /dev/stdin": true, |
| "A /dev/tty": true, |
| "A /dev/urandom": true, |
| "A /dev/zero": true, |
| } |
| |
| for _, line := range strings.Split(out, "\n") { |
| c.Assert(line == "" || expected[line], checker.True, check.Commentf(line)) |
| } |
| } |
| |
| // https://github.com/docker/docker/pull/14381#discussion_r33859347 |
| func (s *DockerSuite) TestDiffEmptyArgClientError(c *check.C) { |
| out, _, err := dockerCmdWithError("diff", "") |
| c.Assert(err, checker.NotNil) |
| c.Assert(strings.TrimSpace(out), checker.Contains, "Container name cannot be empty") |
| } |