package main import ( "os" "os/exec" "strings" "github.com/go-check/check" ) // export an image and try to import it into a new one func (s *DockerSuite) TestExportContainerAndImportImage(c *check.C) { testRequires(c, DaemonIsLinux) containerID := "testexportcontainerandimportimage" dockerCmd(c, "run", "--name", containerID, "busybox", "true") out, _ := dockerCmd(c, "export", containerID) importCmd := exec.Command(dockerBinary, "import", "-", "repo/testexp:v1") importCmd.Stdin = strings.NewReader(out) out, _, err := runCommandWithOutput(importCmd) if err != nil { c.Fatalf("failed to import image: %s, %v", out, err) } cleanedImageID := strings.TrimSpace(out) if cleanedImageID == "" { c.Fatalf("output should have been an image id, got: %s", out) } } // Used to test output flag in the export command func (s *DockerSuite) TestExportContainerWithOutputAndImportImage(c *check.C) { testRequires(c, DaemonIsLinux) containerID := "testexportcontainerwithoutputandimportimage" dockerCmd(c, "run", "--name", containerID, "busybox", "true") dockerCmd(c, "export", "--output=testexp.tar", containerID) defer os.Remove("testexp.tar") out, _, err := runCommandWithOutput(exec.Command("cat", "testexp.tar")) if err != nil { c.Fatal(out, err) } importCmd := exec.Command(dockerBinary, "import", "-", "repo/testexp:v1") importCmd.Stdin = strings.NewReader(out) out, _, err = runCommandWithOutput(importCmd) if err != nil { c.Fatalf("failed to import image: %s, %v", out, err) } cleanedImageID := strings.TrimSpace(out) if cleanedImageID == "" { c.Fatalf("output should have been an image id, got: %s", out) } }