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moby--moby/integration-cli/docker_cli_import_test.go

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package main
import (
"bufio"
"compress/gzip"
"io/ioutil"
"os"
"os/exec"
"regexp"
"strings"
"github.com/docker/docker/pkg/integration/checker"
"github.com/go-check/check"
)
func (s *DockerSuite) TestImportDisplay(c *check.C) {
testRequires(c, DaemonIsLinux)
out, _ := dockerCmd(c, "run", "-d", "busybox", "true")
cleanedContainerID := strings.TrimSpace(out)
out, _, err := runCommandPipelineWithOutput(
exec.Command(dockerBinary, "export", cleanedContainerID),
exec.Command(dockerBinary, "import", "-"),
)
c.Assert(err, checker.IsNil)
c.Assert(out, checker.Count, "\n", 1, check.Commentf("display is expected 1 '\\n' but didn't"))
image := strings.TrimSpace(out)
out, _ = dockerCmd(c, "run", "--rm", image, "true")
c.Assert(out, checker.Equals, "", check.Commentf("command output should've been nothing."))
}
func (s *DockerSuite) TestImportBadURL(c *check.C) {
out, _, err := dockerCmdWithError("import", "http://nourl/bad")
c.Assert(err, checker.NotNil, check.Commentf("import was supposed to fail but didn't"))
// Depending on your system you can get either of these errors
if !strings.Contains(out, "dial tcp") &&
!strings.Contains(out, "Error processing tar file") {
c.Fatalf("expected an error msg but didn't get one.\nErr: %v\nOut: %v", err, out)
}
}
func (s *DockerSuite) TestImportFile(c *check.C) {
testRequires(c, DaemonIsLinux)
dockerCmd(c, "run", "--name", "test-import", "busybox", "true")
temporaryFile, err := ioutil.TempFile("", "exportImportTest")
c.Assert(err, checker.IsNil, check.Commentf("failed to create temporary file"))
defer os.Remove(temporaryFile.Name())
runCmd := exec.Command(dockerBinary, "export", "test-import")
runCmd.Stdout = bufio.NewWriter(temporaryFile)
_, err = runCommand(runCmd)
c.Assert(err, checker.IsNil, check.Commentf("failed to export a container"))
out, _ := dockerCmd(c, "import", temporaryFile.Name())
c.Assert(out, checker.Count, "\n", 1, check.Commentf("display is expected 1 '\\n' but didn't"))
image := strings.TrimSpace(out)
out, _ = dockerCmd(c, "run", "--rm", image, "true")
c.Assert(out, checker.Equals, "", check.Commentf("command output should've been nothing."))
}
func (s *DockerSuite) TestImportGzipped(c *check.C) {
testRequires(c, DaemonIsLinux)
dockerCmd(c, "run", "--name", "test-import", "busybox", "true")
temporaryFile, err := ioutil.TempFile("", "exportImportTest")
c.Assert(err, checker.IsNil, check.Commentf("failed to create temporary file"))
defer os.Remove(temporaryFile.Name())
runCmd := exec.Command(dockerBinary, "export", "test-import")
w := gzip.NewWriter(temporaryFile)
runCmd.Stdout = w
_, err = runCommand(runCmd)
c.Assert(err, checker.IsNil, check.Commentf("failed to export a container"))
err = w.Close()
c.Assert(err, checker.IsNil, check.Commentf("failed to close gzip writer"))
temporaryFile.Close()
out, _ := dockerCmd(c, "import", temporaryFile.Name())
c.Assert(out, checker.Count, "\n", 1, check.Commentf("display is expected 1 '\\n' but didn't"))
image := strings.TrimSpace(out)
out, _ = dockerCmd(c, "run", "--rm", image, "true")
c.Assert(out, checker.Equals, "", check.Commentf("command output should've been nothing."))
}
func (s *DockerSuite) TestImportFileWithMessage(c *check.C) {
testRequires(c, DaemonIsLinux)
dockerCmd(c, "run", "--name", "test-import", "busybox", "true")
temporaryFile, err := ioutil.TempFile("", "exportImportTest")
c.Assert(err, checker.IsNil, check.Commentf("failed to create temporary file"))
defer os.Remove(temporaryFile.Name())
runCmd := exec.Command(dockerBinary, "export", "test-import")
runCmd.Stdout = bufio.NewWriter(temporaryFile)
_, err = runCommand(runCmd)
c.Assert(err, checker.IsNil, check.Commentf("failed to export a container"))
message := "Testing commit message"
out, _ := dockerCmd(c, "import", "-m", message, temporaryFile.Name())
c.Assert(out, checker.Count, "\n", 1, check.Commentf("display is expected 1 '\\n' but didn't"))
image := strings.TrimSpace(out)
out, _ = dockerCmd(c, "history", image)
split := strings.Split(out, "\n")
c.Assert(split, checker.HasLen, 3, check.Commentf("expected 3 lines from image history"))
r := regexp.MustCompile("[\\s]{2,}")
split = r.Split(split[1], -1)
c.Assert(message, checker.Equals, split[3], check.Commentf("didn't get expected value in commit message"))
out, _ = dockerCmd(c, "run", "--rm", image, "true")
c.Assert(out, checker.Equals, "", check.Commentf("command output should've been nothing"))
}
func (s *DockerSuite) TestImportFileNonExistentFile(c *check.C) {
_, _, err := dockerCmdWithError("import", "example.com/myImage.tar")
c.Assert(err, checker.NotNil, check.Commentf("import non-existing file must failed"))
}