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moby--moby/integration-cli/docker_cli_inspect_test.go
Zhang Wei 62a856e912 Assert error in body of function inspectField*
1. Replace raw `docker inspect -f xxx` with `inspectField`, to make code
cleaner and more consistent
2. assert the error in function `inspectField*` so we don't need to
assert the return value of it every time, this will make inspect easier.

Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
2016-01-29 23:39:07 +08:00

388 lines
14 KiB
Go

package main
import (
"encoding/json"
"fmt"
"os/exec"
"strconv"
"strings"
"time"
"github.com/docker/docker/pkg/integration/checker"
"github.com/docker/engine-api/types"
"github.com/docker/engine-api/types/container"
"github.com/go-check/check"
)
func checkValidGraphDriver(c *check.C, name string) {
if name != "devicemapper" && name != "overlay" && name != "vfs" && name != "zfs" && name != "btrfs" && name != "aufs" {
c.Fatalf("%v is not a valid graph driver name", name)
}
}
func (s *DockerSuite) TestInspectImage(c *check.C) {
testRequires(c, DaemonIsLinux)
imageTest := "emptyfs"
// It is important that this ID remain stable. If a code change causes
// it to be different, this is equivalent to a cache bust when pulling
// a legacy-format manifest. If the check at the end of this function
// fails, fix the difference in the image serialization instead of
// updating this hash.
imageTestID := "sha256:11f64303f0f7ffdc71f001788132bca5346831939a956e3e975c93267d89a16d"
id := inspectField(c, imageTest, "Id")
c.Assert(id, checker.Equals, imageTestID)
}
func (s *DockerSuite) TestInspectInt64(c *check.C) {
testRequires(c, DaemonIsLinux)
dockerCmd(c, "run", "-d", "-m=300M", "--name", "inspectTest", "busybox", "true")
inspectOut := inspectField(c, "inspectTest", "HostConfig.Memory")
c.Assert(inspectOut, checker.Equals, "314572800")
}
func (s *DockerSuite) TestInspectDefault(c *check.C) {
testRequires(c, DaemonIsLinux)
//Both the container and image are named busybox. docker inspect will fetch the container JSON.
//If the container JSON is not available, it will go for the image JSON.
out, _ := dockerCmd(c, "run", "--name=busybox", "-d", "busybox", "true")
containerID := strings.TrimSpace(out)
inspectOut := inspectField(c, "busybox", "Id")
c.Assert(strings.TrimSpace(inspectOut), checker.Equals, containerID)
}
func (s *DockerSuite) TestInspectStatus(c *check.C) {
defer unpauseAllContainers()
testRequires(c, DaemonIsLinux)
out, _ := dockerCmd(c, "run", "-d", "busybox", "top")
out = strings.TrimSpace(out)
inspectOut := inspectField(c, out, "State.Status")
c.Assert(inspectOut, checker.Equals, "running")
dockerCmd(c, "pause", out)
inspectOut = inspectField(c, out, "State.Status")
c.Assert(inspectOut, checker.Equals, "paused")
dockerCmd(c, "unpause", out)
inspectOut = inspectField(c, out, "State.Status")
c.Assert(inspectOut, checker.Equals, "running")
dockerCmd(c, "stop", out)
inspectOut = inspectField(c, out, "State.Status")
c.Assert(inspectOut, checker.Equals, "exited")
}
func (s *DockerSuite) TestInspectTypeFlagContainer(c *check.C) {
testRequires(c, DaemonIsLinux)
//Both the container and image are named busybox. docker inspect will fetch container
//JSON State.Running field. If the field is true, it's a container.
dockerCmd(c, "run", "--name=busybox", "-d", "busybox", "top")
formatStr := "--format='{{.State.Running}}'"
out, _ := dockerCmd(c, "inspect", "--type=container", formatStr, "busybox")
c.Assert(out, checker.Equals, "true\n") // not a container JSON
}
func (s *DockerSuite) TestInspectTypeFlagWithNoContainer(c *check.C) {
testRequires(c, DaemonIsLinux)
//Run this test on an image named busybox. docker inspect will try to fetch container
//JSON. Since there is no container named busybox and --type=container, docker inspect will
//not try to get the image JSON. It will throw an error.
dockerCmd(c, "run", "-d", "busybox", "true")
_, _, err := dockerCmdWithError("inspect", "--type=container", "busybox")
// docker inspect should fail, as there is no container named busybox
c.Assert(err, checker.NotNil)
}
func (s *DockerSuite) TestInspectTypeFlagWithImage(c *check.C) {
testRequires(c, DaemonIsLinux)
//Both the container and image are named busybox. docker inspect will fetch image
//JSON as --type=image. if there is no image with name busybox, docker inspect
//will throw an error.
dockerCmd(c, "run", "--name=busybox", "-d", "busybox", "true")
out, _ := dockerCmd(c, "inspect", "--type=image", "busybox")
c.Assert(out, checker.Not(checker.Contains), "State") // not an image JSON
}
func (s *DockerSuite) TestInspectTypeFlagWithInvalidValue(c *check.C) {
testRequires(c, DaemonIsLinux)
//Both the container and image are named busybox. docker inspect will fail
//as --type=foobar is not a valid value for the flag.
dockerCmd(c, "run", "--name=busybox", "-d", "busybox", "true")
out, exitCode, err := dockerCmdWithError("inspect", "--type=foobar", "busybox")
c.Assert(err, checker.NotNil, check.Commentf("%s", exitCode))
c.Assert(exitCode, checker.Equals, 1, check.Commentf("%s", err))
c.Assert(out, checker.Contains, "not a valid value for --type")
}
func (s *DockerSuite) TestInspectImageFilterInt(c *check.C) {
testRequires(c, DaemonIsLinux)
imageTest := "emptyfs"
out := inspectField(c, imageTest, "Size")
size, err := strconv.Atoi(out)
c.Assert(err, checker.IsNil, check.Commentf("failed to inspect size of the image: %s, %v", out, err))
//now see if the size turns out to be the same
formatStr := fmt.Sprintf("--format='{{eq .Size %d}}'", size)
out, _ = dockerCmd(c, "inspect", formatStr, imageTest)
result, err := strconv.ParseBool(strings.TrimSuffix(out, "\n"))
c.Assert(err, checker.IsNil)
c.Assert(result, checker.Equals, true)
}
func (s *DockerSuite) TestInspectContainerFilterInt(c *check.C) {
testRequires(c, DaemonIsLinux)
runCmd := exec.Command(dockerBinary, "run", "-i", "-a", "stdin", "busybox", "cat")
runCmd.Stdin = strings.NewReader("blahblah")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
c.Assert(err, checker.IsNil, check.Commentf("failed to run container: %v, output: %q", err, out))
id := strings.TrimSpace(out)
out = inspectField(c, id, "State.ExitCode")
exitCode, err := strconv.Atoi(out)
c.Assert(err, checker.IsNil, check.Commentf("failed to inspect exitcode of the container: %s, %v", out, err))
//now get the exit code to verify
formatStr := fmt.Sprintf("--format='{{eq .State.ExitCode %d}}'", exitCode)
out, _ = dockerCmd(c, "inspect", formatStr, id)
result, err := strconv.ParseBool(strings.TrimSuffix(out, "\n"))
c.Assert(err, checker.IsNil)
c.Assert(result, checker.Equals, true)
}
func (s *DockerSuite) TestInspectImageGraphDriver(c *check.C) {
testRequires(c, DaemonIsLinux)
imageTest := "emptyfs"
name := inspectField(c, imageTest, "GraphDriver.Name")
checkValidGraphDriver(c, name)
if name != "devicemapper" {
c.Skip("requires devicemapper graphdriver")
}
deviceID := inspectField(c, imageTest, "GraphDriver.Data.DeviceId")
_, err := strconv.Atoi(deviceID)
c.Assert(err, checker.IsNil, check.Commentf("failed to inspect DeviceId of the image: %s, %v", deviceID, err))
deviceSize := inspectField(c, imageTest, "GraphDriver.Data.DeviceSize")
_, err = strconv.ParseUint(deviceSize, 10, 64)
c.Assert(err, checker.IsNil, check.Commentf("failed to inspect DeviceSize of the image: %s, %v", deviceSize, err))
}
func (s *DockerSuite) TestInspectContainerGraphDriver(c *check.C) {
testRequires(c, DaemonIsLinux)
out, _ := dockerCmd(c, "run", "-d", "busybox", "true")
out = strings.TrimSpace(out)
name := inspectField(c, out, "GraphDriver.Name")
checkValidGraphDriver(c, name)
if name != "devicemapper" {
return
}
imageDeviceID := inspectField(c, "busybox", "GraphDriver.Data.DeviceId")
deviceID := inspectField(c, out, "GraphDriver.Data.DeviceId")
c.Assert(imageDeviceID, checker.Not(checker.Equals), deviceID)
_, err := strconv.Atoi(deviceID)
c.Assert(err, checker.IsNil, check.Commentf("failed to inspect DeviceId of the image: %s, %v", deviceID, err))
deviceSize := inspectField(c, out, "GraphDriver.Data.DeviceSize")
_, err = strconv.ParseUint(deviceSize, 10, 64)
c.Assert(err, checker.IsNil, check.Commentf("failed to inspect DeviceSize of the image: %s, %v", deviceSize, err))
}
func (s *DockerSuite) TestInspectBindMountPoint(c *check.C) {
testRequires(c, DaemonIsLinux)
dockerCmd(c, "run", "-d", "--name", "test", "-v", "/data:/data:ro,z", "busybox", "cat")
vol := inspectFieldJSON(c, "test", "Mounts")
var mp []types.MountPoint
err := unmarshalJSON([]byte(vol), &mp)
c.Assert(err, checker.IsNil)
// check that there is only one mountpoint
c.Assert(mp, check.HasLen, 1)
m := mp[0]
c.Assert(m.Name, checker.Equals, "")
c.Assert(m.Driver, checker.Equals, "")
c.Assert(m.Source, checker.Equals, "/data")
c.Assert(m.Destination, checker.Equals, "/data")
c.Assert(m.Mode, checker.Equals, "ro,z")
c.Assert(m.RW, checker.Equals, false)
}
// #14947
func (s *DockerSuite) TestInspectTimesAsRFC3339Nano(c *check.C) {
testRequires(c, DaemonIsLinux)
out, _ := dockerCmd(c, "run", "-d", "busybox", "true")
id := strings.TrimSpace(out)
startedAt := inspectField(c, id, "State.StartedAt")
finishedAt := inspectField(c, id, "State.FinishedAt")
created := inspectField(c, id, "Created")
_, err := time.Parse(time.RFC3339Nano, startedAt)
c.Assert(err, checker.IsNil)
_, err = time.Parse(time.RFC3339Nano, finishedAt)
c.Assert(err, checker.IsNil)
_, err = time.Parse(time.RFC3339Nano, created)
c.Assert(err, checker.IsNil)
created = inspectField(c, "busybox", "Created")
_, err = time.Parse(time.RFC3339Nano, created)
c.Assert(err, checker.IsNil)
}
// #15633
func (s *DockerSuite) TestInspectLogConfigNoType(c *check.C) {
testRequires(c, DaemonIsLinux)
dockerCmd(c, "create", "--name=test", "--log-opt", "max-file=42", "busybox")
var logConfig container.LogConfig
out := inspectFieldJSON(c, "test", "HostConfig.LogConfig")
err := json.NewDecoder(strings.NewReader(out)).Decode(&logConfig)
c.Assert(err, checker.IsNil, check.Commentf("%v", out))
c.Assert(logConfig.Type, checker.Equals, "json-file")
c.Assert(logConfig.Config["max-file"], checker.Equals, "42", check.Commentf("%v", logConfig))
}
func (s *DockerSuite) TestInspectNoSizeFlagContainer(c *check.C) {
//Both the container and image are named busybox. docker inspect will fetch container
//JSON SizeRw and SizeRootFs field. If there is no flag --size/-s, there are no size fields.
dockerCmd(c, "run", "--name=busybox", "-d", "busybox", "top")
formatStr := "--format='{{.SizeRw}},{{.SizeRootFs}}'"
out, _ := dockerCmd(c, "inspect", "--type=container", formatStr, "busybox")
c.Assert(strings.TrimSpace(out), check.Equals, "<nil>,<nil>", check.Commentf("Exepcted not to display size info: %s", out))
}
func (s *DockerSuite) TestInspectSizeFlagContainer(c *check.C) {
dockerCmd(c, "run", "--name=busybox", "-d", "busybox", "top")
formatStr := "--format='{{.SizeRw}},{{.SizeRootFs}}'"
out, _ := dockerCmd(c, "inspect", "-s", "--type=container", formatStr, "busybox")
sz := strings.Split(out, ",")
c.Assert(strings.TrimSpace(sz[0]), check.Not(check.Equals), "<nil>")
c.Assert(strings.TrimSpace(sz[1]), check.Not(check.Equals), "<nil>")
}
func (s *DockerSuite) TestInspectSizeFlagImage(c *check.C) {
dockerCmd(c, "run", "--name=busybox", "-d", "busybox", "top")
formatStr := "--format='{{.SizeRw}},{{.SizeRootFs}}'"
out, _, err := dockerCmdWithError("inspect", "-s", "--type=image", formatStr, "busybox")
// Template error rather than <no value>
// This is a more correct behavior because images don't have sizes associated.
c.Assert(err, check.Not(check.IsNil))
c.Assert(out, checker.Contains, "Template parsing error")
}
func (s *DockerSuite) TestInspectTempateError(c *check.C) {
// Template parsing error for both the container and image.
dockerCmd(c, "run", "--name=container1", "-d", "busybox", "top")
out, _, err := dockerCmdWithError("inspect", "--type=container", "--format='Format container: {{.ThisDoesNotExist}}'", "container1")
c.Assert(err, check.Not(check.IsNil))
c.Assert(out, checker.Contains, "Template parsing error")
out, _, err = dockerCmdWithError("inspect", "--type=image", "--format='Format container: {{.ThisDoesNotExist}}'", "busybox")
c.Assert(err, check.Not(check.IsNil))
c.Assert(out, checker.Contains, "Template parsing error")
}
func (s *DockerSuite) TestInspectJSONFields(c *check.C) {
dockerCmd(c, "run", "--name=busybox", "-d", "busybox", "top")
out, _, err := dockerCmdWithError("inspect", "--type=container", "--format='{{.HostConfig.Dns}}'", "busybox")
c.Assert(err, check.IsNil)
c.Assert(out, checker.Equals, "[]\n")
}
func (s *DockerSuite) TestInspectByPrefix(c *check.C) {
id := inspectField(c, "busybox", "Id")
c.Assert(id, checker.HasPrefix, "sha256:")
id2 := inspectField(c, id[:12], "Id")
c.Assert(id, checker.Equals, id2)
id3 := inspectField(c, strings.TrimPrefix(id, "sha256:")[:12], "Id")
c.Assert(id, checker.Equals, id3)
}
func (s *DockerSuite) TestInspectStopWhenNotFound(c *check.C) {
dockerCmd(c, "run", "--name=busybox", "-d", "busybox", "top")
dockerCmd(c, "run", "--name=not-shown", "-d", "busybox", "top")
out, _, err := dockerCmdWithError("inspect", "--type=container", "--format='{{.Name}}'", "busybox", "missing", "not-shown")
c.Assert(err, checker.Not(check.IsNil))
c.Assert(out, checker.Contains, "busybox")
c.Assert(out, checker.Not(checker.Contains), "not-shown")
c.Assert(out, checker.Contains, "Error: No such container: missing")
}
func (s *DockerSuite) TestInspectHistory(c *check.C) {
testRequires(c, DaemonIsLinux)
dockerCmd(c, "run", "--name=testcont", "-d", "busybox", "top")
dockerCmd(c, "commit", "-m", "test comment", "testcont", "testimg")
out, _, err := dockerCmdWithError("inspect", "--format='{{.Comment}}'", "testimg")
c.Assert(err, check.IsNil)
c.Assert(out, checker.Contains, "test comment")
}
func (s *DockerSuite) TestInspectContainerNetworkDefault(c *check.C) {
testRequires(c, DaemonIsLinux)
contName := "test1"
dockerCmd(c, "run", "--name", contName, "-d", "busybox", "top")
netOut, _ := dockerCmd(c, "network", "inspect", "--format='{{.ID}}'", "bridge")
out := inspectField(c, contName, "NetworkSettings.Networks")
c.Assert(out, checker.Contains, "bridge")
out = inspectField(c, contName, "NetworkSettings.Networks.bridge.NetworkID")
c.Assert(strings.TrimSpace(out), checker.Equals, strings.TrimSpace(netOut))
}
func (s *DockerSuite) TestInspectContainerNetworkCustom(c *check.C) {
testRequires(c, DaemonIsLinux)
netOut, _ := dockerCmd(c, "network", "create", "net1")
dockerCmd(c, "run", "--name=container1", "--net=net1", "-d", "busybox", "top")
out := inspectField(c, "container1", "NetworkSettings.Networks")
c.Assert(out, checker.Contains, "net1")
out = inspectField(c, "container1", "NetworkSettings.Networks.net1.NetworkID")
c.Assert(strings.TrimSpace(out), checker.Equals, strings.TrimSpace(netOut))
}