blob: da520e41c0cb6a96eddd96b9aa723d97c3bde698 [file] [log] [blame]
// +build !windows
package main
import (
"context"
"fmt"
"io/ioutil"
"os"
"os/exec"
"strings"
"time"
"github.com/docker/docker/integration-cli/checker"
"github.com/docker/docker/integration-cli/cli/build"
"github.com/go-check/check"
"github.com/kr/pty"
"gotest.tools/icmd"
)
// save a repo and try to load it using stdout
func (s *DockerSuite) TestSaveAndLoadRepoStdout(c *check.C) {
name := "test-save-and-load-repo-stdout"
dockerCmd(c, "run", "--name", name, "busybox", "true")
repoName := "foobar-save-load-test"
before, _ := dockerCmd(c, "commit", name, repoName)
before = strings.TrimRight(before, "\n")
tmpFile, err := ioutil.TempFile("", "foobar-save-load-test.tar")
c.Assert(err, check.IsNil)
defer os.Remove(tmpFile.Name())
icmd.RunCmd(icmd.Cmd{
Command: []string{dockerBinary, "save", repoName},
Stdout: tmpFile,
}).Assert(c, icmd.Success)
tmpFile, err = os.Open(tmpFile.Name())
c.Assert(err, check.IsNil)
defer tmpFile.Close()
deleteImages(repoName)
icmd.RunCmd(icmd.Cmd{
Command: []string{dockerBinary, "load"},
Stdin: tmpFile,
}).Assert(c, icmd.Success)
after := inspectField(c, repoName, "Id")
after = strings.TrimRight(after, "\n")
c.Assert(after, check.Equals, before) //inspect is not the same after a save / load
deleteImages(repoName)
pty, tty, err := pty.Open()
c.Assert(err, check.IsNil)
cmd := exec.Command(dockerBinary, "save", repoName)
cmd.Stdin = tty
cmd.Stdout = tty
cmd.Stderr = tty
c.Assert(cmd.Start(), check.IsNil)
c.Assert(cmd.Wait(), check.NotNil) //did not break writing to a TTY
buf := make([]byte, 1024)
n, err := pty.Read(buf)
c.Assert(err, check.IsNil) //could not read tty output
c.Assert(string(buf[:n]), checker.Contains, "cowardly refusing", check.Commentf("help output is not being yielded"))
}
func (s *DockerSuite) TestSaveAndLoadWithProgressBar(c *check.C) {
name := "test-load"
buildImageSuccessfully(c, name, build.WithDockerfile(`FROM busybox
RUN touch aa
`))
tmptar := name + ".tar"
dockerCmd(c, "save", "-o", tmptar, name)
defer os.Remove(tmptar)
dockerCmd(c, "rmi", name)
dockerCmd(c, "tag", "busybox", name)
out, _ := dockerCmd(c, "load", "-i", tmptar)
expected := fmt.Sprintf("The image %s:latest already exists, renaming the old one with ID", name)
c.Assert(out, checker.Contains, expected)
}
// fail because load didn't receive data from stdin
func (s *DockerSuite) TestLoadNoStdinFail(c *check.C) {
pty, tty, err := pty.Open()
c.Assert(err, check.IsNil)
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
cmd := exec.CommandContext(ctx, dockerBinary, "load")
cmd.Stdin = tty
cmd.Stdout = tty
cmd.Stderr = tty
c.Assert(cmd.Run(), check.NotNil) // docker-load should fail
buf := make([]byte, 1024)
n, err := pty.Read(buf)
c.Assert(err, check.IsNil) //could not read tty output
c.Assert(string(buf[:n]), checker.Contains, "requested load from stdin, but stdin is empty")
}