github.com/afbjorklund/moby@v20.10.5+incompatible/integration-cli/docker_cli_plugins_test.go (about)

     1  package main
     2  
     3  import (
     4  	"context"
     5  	"fmt"
     6  	"io/ioutil"
     7  	"net/http"
     8  	"os"
     9  	"path"
    10  	"path/filepath"
    11  	"strings"
    12  	"testing"
    13  	"time"
    14  
    15  	"github.com/docker/docker/api/types"
    16  	"github.com/docker/docker/integration-cli/cli"
    17  	"github.com/docker/docker/integration-cli/daemon"
    18  	"github.com/docker/docker/testutil/fixtures/plugin"
    19  	"gotest.tools/v3/assert"
    20  )
    21  
    22  var (
    23  	pluginProcessName = "sample-volume-plugin"
    24  	pName             = "tiborvass/sample-volume-plugin"
    25  	npName            = "tiborvass/test-docker-netplugin"
    26  	pTag              = "latest"
    27  	pNameWithTag      = pName + ":" + pTag
    28  	npNameWithTag     = npName + ":" + pTag
    29  )
    30  
    31  func (ps *DockerPluginSuite) TestPluginBasicOps(c *testing.T) {
    32  	plugin := ps.getPluginRepoWithTag()
    33  	_, _, err := dockerCmdWithError("plugin", "install", "--grant-all-permissions", plugin)
    34  	assert.NilError(c, err)
    35  
    36  	out, _, err := dockerCmdWithError("plugin", "ls")
    37  	assert.NilError(c, err)
    38  	assert.Assert(c, strings.Contains(out, plugin))
    39  	assert.Assert(c, strings.Contains(out, "true"))
    40  	id, _, err := dockerCmdWithError("plugin", "inspect", "-f", "{{.Id}}", plugin)
    41  	id = strings.TrimSpace(id)
    42  	assert.NilError(c, err)
    43  
    44  	out, _, err = dockerCmdWithError("plugin", "remove", plugin)
    45  	assert.ErrorContains(c, err, "")
    46  	assert.Assert(c, strings.Contains(out, "is enabled"))
    47  	_, _, err = dockerCmdWithError("plugin", "disable", plugin)
    48  	assert.NilError(c, err)
    49  
    50  	out, _, err = dockerCmdWithError("plugin", "remove", plugin)
    51  	assert.NilError(c, err)
    52  	assert.Assert(c, strings.Contains(out, plugin))
    53  	_, err = os.Stat(filepath.Join(testEnv.DaemonInfo.DockerRootDir, "plugins", id))
    54  	if !os.IsNotExist(err) {
    55  		c.Fatal(err)
    56  	}
    57  }
    58  
    59  func (ps *DockerPluginSuite) TestPluginForceRemove(c *testing.T) {
    60  	pNameWithTag := ps.getPluginRepoWithTag()
    61  
    62  	_, _, err := dockerCmdWithError("plugin", "install", "--grant-all-permissions", pNameWithTag)
    63  	assert.NilError(c, err)
    64  
    65  	out, _, _ := dockerCmdWithError("plugin", "remove", pNameWithTag)
    66  	assert.Assert(c, strings.Contains(out, "is enabled"))
    67  	out, _, err = dockerCmdWithError("plugin", "remove", "--force", pNameWithTag)
    68  	assert.NilError(c, err)
    69  	assert.Assert(c, strings.Contains(out, pNameWithTag))
    70  }
    71  
    72  func (s *DockerSuite) TestPluginActive(c *testing.T) {
    73  	testRequires(c, DaemonIsLinux, IsAmd64, Network)
    74  
    75  	_, _, err := dockerCmdWithError("plugin", "install", "--grant-all-permissions", pNameWithTag)
    76  	assert.NilError(c, err)
    77  
    78  	_, _, err = dockerCmdWithError("volume", "create", "-d", pNameWithTag, "--name", "testvol1")
    79  	assert.NilError(c, err)
    80  
    81  	out, _, _ := dockerCmdWithError("plugin", "disable", pNameWithTag)
    82  	assert.Assert(c, strings.Contains(out, "in use"))
    83  	_, _, err = dockerCmdWithError("volume", "rm", "testvol1")
    84  	assert.NilError(c, err)
    85  
    86  	_, _, err = dockerCmdWithError("plugin", "disable", pNameWithTag)
    87  	assert.NilError(c, err)
    88  
    89  	out, _, err = dockerCmdWithError("plugin", "remove", pNameWithTag)
    90  	assert.NilError(c, err)
    91  	assert.Assert(c, strings.Contains(out, pNameWithTag))
    92  }
    93  
    94  func (s *DockerSuite) TestPluginActiveNetwork(c *testing.T) {
    95  	testRequires(c, DaemonIsLinux, IsAmd64, Network)
    96  	_, _, err := dockerCmdWithError("plugin", "install", "--grant-all-permissions", npNameWithTag)
    97  	assert.NilError(c, err)
    98  
    99  	out, _, err := dockerCmdWithError("network", "create", "-d", npNameWithTag, "test")
   100  	assert.NilError(c, err)
   101  
   102  	nID := strings.TrimSpace(out)
   103  
   104  	out, _, _ = dockerCmdWithError("plugin", "remove", npNameWithTag)
   105  	assert.Assert(c, strings.Contains(out, "is in use"))
   106  	_, _, err = dockerCmdWithError("network", "rm", nID)
   107  	assert.NilError(c, err)
   108  
   109  	out, _, _ = dockerCmdWithError("plugin", "remove", npNameWithTag)
   110  	assert.Assert(c, strings.Contains(out, "is enabled"))
   111  	_, _, err = dockerCmdWithError("plugin", "disable", npNameWithTag)
   112  	assert.NilError(c, err)
   113  
   114  	out, _, err = dockerCmdWithError("plugin", "remove", npNameWithTag)
   115  	assert.NilError(c, err)
   116  	assert.Assert(c, strings.Contains(out, npNameWithTag))
   117  }
   118  
   119  func (ps *DockerPluginSuite) TestPluginInstallDisable(c *testing.T) {
   120  	pName := ps.getPluginRepoWithTag()
   121  
   122  	out, _, err := dockerCmdWithError("plugin", "install", "--grant-all-permissions", "--disable", pName)
   123  	assert.NilError(c, err)
   124  	assert.Assert(c, strings.Contains(strings.TrimSpace(out), pName))
   125  	out, _, err = dockerCmdWithError("plugin", "ls")
   126  	assert.NilError(c, err)
   127  	assert.Assert(c, strings.Contains(out, "false"))
   128  	out, _, err = dockerCmdWithError("plugin", "enable", pName)
   129  	assert.NilError(c, err)
   130  	assert.Assert(c, strings.Contains(strings.TrimSpace(out), pName))
   131  	out, _, err = dockerCmdWithError("plugin", "disable", pName)
   132  	assert.NilError(c, err)
   133  	assert.Assert(c, strings.Contains(strings.TrimSpace(out), pName))
   134  	out, _, err = dockerCmdWithError("plugin", "remove", pName)
   135  	assert.NilError(c, err)
   136  	assert.Assert(c, strings.Contains(strings.TrimSpace(out), pName))
   137  }
   138  
   139  func (s *DockerSuite) TestPluginInstallDisableVolumeLs(c *testing.T) {
   140  	testRequires(c, DaemonIsLinux, IsAmd64, Network)
   141  	out, _, err := dockerCmdWithError("plugin", "install", "--grant-all-permissions", "--disable", pName)
   142  	assert.NilError(c, err)
   143  	assert.Assert(c, strings.Contains(strings.TrimSpace(out), pName))
   144  	dockerCmd(c, "volume", "ls")
   145  }
   146  
   147  func (ps *DockerPluginSuite) TestPluginSet(c *testing.T) {
   148  	client := testEnv.APIClient()
   149  
   150  	name := "test"
   151  	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
   152  	defer cancel()
   153  
   154  	initialValue := "0"
   155  	mntSrc := "foo"
   156  	devPath := "/dev/bar"
   157  
   158  	// Create a new plugin with extra settings
   159  	err := plugin.Create(ctx, client, name, func(cfg *plugin.Config) {
   160  		cfg.Env = []types.PluginEnv{{Name: "DEBUG", Value: &initialValue, Settable: []string{"value"}}}
   161  		cfg.Mounts = []types.PluginMount{
   162  			{Name: "pmount1", Settable: []string{"source"}, Type: "none", Source: &mntSrc},
   163  			{Name: "pmount2", Settable: []string{"source"}, Type: "none"}, // Mount without source is invalid.
   164  		}
   165  		cfg.Linux.Devices = []types.PluginDevice{
   166  			{Name: "pdev1", Path: &devPath, Settable: []string{"path"}},
   167  			{Name: "pdev2", Settable: []string{"path"}}, // Device without Path is invalid.
   168  		}
   169  	})
   170  	assert.Assert(c, err == nil, "failed to create test plugin")
   171  
   172  	env, _ := dockerCmd(c, "plugin", "inspect", "-f", "{{.Settings.Env}}", name)
   173  	assert.Equal(c, strings.TrimSpace(env), "[DEBUG=0]")
   174  
   175  	dockerCmd(c, "plugin", "set", name, "DEBUG=1")
   176  
   177  	env, _ = dockerCmd(c, "plugin", "inspect", "-f", "{{.Settings.Env}}", name)
   178  	assert.Equal(c, strings.TrimSpace(env), "[DEBUG=1]")
   179  
   180  	env, _ = dockerCmd(c, "plugin", "inspect", "-f", "{{with $mount := index .Settings.Mounts 0}}{{$mount.Source}}{{end}}", name)
   181  	assert.Assert(c, strings.Contains(strings.TrimSpace(env), mntSrc))
   182  	dockerCmd(c, "plugin", "set", name, "pmount1.source=bar")
   183  
   184  	env, _ = dockerCmd(c, "plugin", "inspect", "-f", "{{with $mount := index .Settings.Mounts 0}}{{$mount.Source}}{{end}}", name)
   185  	assert.Assert(c, strings.Contains(strings.TrimSpace(env), "bar"))
   186  	out, _, err := dockerCmdWithError("plugin", "set", name, "pmount2.source=bar2")
   187  	assert.ErrorContains(c, err, "")
   188  	assert.Assert(c, strings.Contains(out, "Plugin config has no mount source"))
   189  	out, _, err = dockerCmdWithError("plugin", "set", name, "pdev2.path=/dev/bar2")
   190  	assert.ErrorContains(c, err, "")
   191  	assert.Assert(c, strings.Contains(out, "Plugin config has no device path"))
   192  }
   193  
   194  func (ps *DockerPluginSuite) TestPluginInstallArgs(c *testing.T) {
   195  	pName := path.Join(ps.registryHost(), "plugin", "testplugininstallwithargs")
   196  	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
   197  	defer cancel()
   198  
   199  	plugin.CreateInRegistry(ctx, pName, nil, func(cfg *plugin.Config) {
   200  		cfg.Env = []types.PluginEnv{{Name: "DEBUG", Settable: []string{"value"}}}
   201  	})
   202  
   203  	out, _ := dockerCmd(c, "plugin", "install", "--grant-all-permissions", "--disable", pName, "DEBUG=1")
   204  	assert.Assert(c, strings.Contains(strings.TrimSpace(out), pName))
   205  	env, _ := dockerCmd(c, "plugin", "inspect", "-f", "{{.Settings.Env}}", pName)
   206  	assert.Equal(c, strings.TrimSpace(env), "[DEBUG=1]")
   207  }
   208  
   209  func (ps *DockerPluginSuite) TestPluginInstallImage(c *testing.T) {
   210  	testRequires(c, IsAmd64)
   211  
   212  	repoName := fmt.Sprintf("%v/dockercli/busybox", privateRegistryURL)
   213  	// tag the image to upload it to the private registry
   214  	dockerCmd(c, "tag", "busybox", repoName)
   215  	// push the image to the registry
   216  	dockerCmd(c, "push", repoName)
   217  
   218  	out, _, err := dockerCmdWithError("plugin", "install", repoName)
   219  	assert.ErrorContains(c, err, "")
   220  	assert.Assert(c, strings.Contains(out, `Encountered remote "application/vnd.docker.container.image.v1+json"(image) when fetching`))
   221  }
   222  
   223  func (ps *DockerPluginSuite) TestPluginEnableDisableNegative(c *testing.T) {
   224  	pName := ps.getPluginRepoWithTag()
   225  
   226  	out, _, err := dockerCmdWithError("plugin", "install", "--grant-all-permissions", pName)
   227  	assert.NilError(c, err)
   228  	assert.Assert(c, strings.Contains(strings.TrimSpace(out), pName))
   229  	out, _, err = dockerCmdWithError("plugin", "enable", pName)
   230  	assert.ErrorContains(c, err, "")
   231  	assert.Assert(c, strings.Contains(strings.TrimSpace(out), "already enabled"))
   232  	_, _, err = dockerCmdWithError("plugin", "disable", pName)
   233  	assert.NilError(c, err)
   234  
   235  	out, _, err = dockerCmdWithError("plugin", "disable", pName)
   236  	assert.ErrorContains(c, err, "")
   237  	assert.Assert(c, strings.Contains(strings.TrimSpace(out), "already disabled"))
   238  	_, _, err = dockerCmdWithError("plugin", "remove", pName)
   239  	assert.NilError(c, err)
   240  }
   241  
   242  func (ps *DockerPluginSuite) TestPluginCreate(c *testing.T) {
   243  	name := "foo/bar-driver"
   244  	temp, err := ioutil.TempDir("", "foo")
   245  	assert.NilError(c, err)
   246  	defer os.RemoveAll(temp)
   247  
   248  	data := `{"description": "foo plugin"}`
   249  	err = ioutil.WriteFile(filepath.Join(temp, "config.json"), []byte(data), 0644)
   250  	assert.NilError(c, err)
   251  
   252  	err = os.MkdirAll(filepath.Join(temp, "rootfs"), 0700)
   253  	assert.NilError(c, err)
   254  
   255  	out, _, err := dockerCmdWithError("plugin", "create", name, temp)
   256  	assert.NilError(c, err)
   257  	assert.Assert(c, strings.Contains(out, name))
   258  	out, _, err = dockerCmdWithError("plugin", "ls")
   259  	assert.NilError(c, err)
   260  	assert.Assert(c, strings.Contains(out, name))
   261  	out, _, err = dockerCmdWithError("plugin", "create", name, temp)
   262  	assert.ErrorContains(c, err, "")
   263  	assert.Assert(c, strings.Contains(out, "already exist"))
   264  	out, _, err = dockerCmdWithError("plugin", "ls")
   265  	assert.NilError(c, err)
   266  	assert.Assert(c, strings.Contains(out, name))
   267  	// The output will consists of one HEADER line and one line of foo/bar-driver
   268  	assert.Equal(c, len(strings.Split(strings.TrimSpace(out), "\n")), 2)
   269  }
   270  
   271  func (ps *DockerPluginSuite) TestPluginInspect(c *testing.T) {
   272  	pNameWithTag := ps.getPluginRepoWithTag()
   273  
   274  	_, _, err := dockerCmdWithError("plugin", "install", "--grant-all-permissions", pNameWithTag)
   275  	assert.NilError(c, err)
   276  
   277  	out, _, err := dockerCmdWithError("plugin", "ls")
   278  	assert.NilError(c, err)
   279  	assert.Assert(c, strings.Contains(out, pNameWithTag))
   280  	assert.Assert(c, strings.Contains(out, "true"))
   281  	// Find the ID first
   282  	out, _, err = dockerCmdWithError("plugin", "inspect", "-f", "{{.Id}}", pNameWithTag)
   283  	assert.NilError(c, err)
   284  	id := strings.TrimSpace(out)
   285  	assert.Assert(c, id != "")
   286  
   287  	// Long form
   288  	out, _, err = dockerCmdWithError("plugin", "inspect", "-f", "{{.Id}}", id)
   289  	assert.NilError(c, err)
   290  	assert.Equal(c, strings.TrimSpace(out), id)
   291  
   292  	// Short form
   293  	out, _, err = dockerCmdWithError("plugin", "inspect", "-f", "{{.Id}}", id[:5])
   294  	assert.NilError(c, err)
   295  	assert.Equal(c, strings.TrimSpace(out), id)
   296  
   297  	// Name with tag form
   298  	out, _, err = dockerCmdWithError("plugin", "inspect", "-f", "{{.Id}}", pNameWithTag)
   299  	assert.NilError(c, err)
   300  	assert.Equal(c, strings.TrimSpace(out), id)
   301  
   302  	// Name without tag form
   303  	out, _, err = dockerCmdWithError("plugin", "inspect", "-f", "{{.Id}}", ps.getPluginRepo())
   304  	assert.NilError(c, err)
   305  	assert.Equal(c, strings.TrimSpace(out), id)
   306  
   307  	_, _, err = dockerCmdWithError("plugin", "disable", pNameWithTag)
   308  	assert.NilError(c, err)
   309  
   310  	out, _, err = dockerCmdWithError("plugin", "remove", pNameWithTag)
   311  	assert.NilError(c, err)
   312  	assert.Assert(c, strings.Contains(out, pNameWithTag))
   313  	// After remove nothing should be found
   314  	_, _, err = dockerCmdWithError("plugin", "inspect", "-f", "{{.Id}}", id[:5])
   315  	assert.ErrorContains(c, err, "")
   316  }
   317  
   318  // Test case for https://github.com/docker/docker/pull/29186#discussion_r91277345
   319  func (s *DockerSuite) TestPluginInspectOnWindows(c *testing.T) {
   320  	// This test should work on Windows only
   321  	testRequires(c, DaemonIsWindows)
   322  
   323  	out, _, err := dockerCmdWithError("plugin", "inspect", "foobar")
   324  	assert.ErrorContains(c, err, "")
   325  	assert.Assert(c, strings.Contains(out, "plugins are not supported on this platform"))
   326  	assert.ErrorContains(c, err, "plugins are not supported on this platform")
   327  }
   328  
   329  func (ps *DockerPluginSuite) TestPluginIDPrefix(c *testing.T) {
   330  	name := "test"
   331  	client := testEnv.APIClient()
   332  
   333  	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
   334  	initialValue := "0"
   335  	err := plugin.Create(ctx, client, name, func(cfg *plugin.Config) {
   336  		cfg.Env = []types.PluginEnv{{Name: "DEBUG", Value: &initialValue, Settable: []string{"value"}}}
   337  	})
   338  	cancel()
   339  
   340  	assert.Assert(c, err == nil, "failed to create test plugin")
   341  
   342  	// Find ID first
   343  	id, _, err := dockerCmdWithError("plugin", "inspect", "-f", "{{.Id}}", name)
   344  	id = strings.TrimSpace(id)
   345  	assert.NilError(c, err)
   346  
   347  	// List current state
   348  	out, _, err := dockerCmdWithError("plugin", "ls")
   349  	assert.NilError(c, err)
   350  	assert.Assert(c, strings.Contains(out, name))
   351  	assert.Assert(c, strings.Contains(out, "false"))
   352  	env, _ := dockerCmd(c, "plugin", "inspect", "-f", "{{.Settings.Env}}", id[:5])
   353  	assert.Equal(c, strings.TrimSpace(env), "[DEBUG=0]")
   354  
   355  	dockerCmd(c, "plugin", "set", id[:5], "DEBUG=1")
   356  
   357  	env, _ = dockerCmd(c, "plugin", "inspect", "-f", "{{.Settings.Env}}", id[:5])
   358  	assert.Equal(c, strings.TrimSpace(env), "[DEBUG=1]")
   359  
   360  	// Enable
   361  	_, _, err = dockerCmdWithError("plugin", "enable", id[:5])
   362  	assert.NilError(c, err)
   363  	out, _, err = dockerCmdWithError("plugin", "ls")
   364  	assert.NilError(c, err)
   365  	assert.Assert(c, strings.Contains(out, name))
   366  	assert.Assert(c, strings.Contains(out, "true"))
   367  	// Disable
   368  	_, _, err = dockerCmdWithError("plugin", "disable", id[:5])
   369  	assert.NilError(c, err)
   370  	out, _, err = dockerCmdWithError("plugin", "ls")
   371  	assert.NilError(c, err)
   372  	assert.Assert(c, strings.Contains(out, name))
   373  	assert.Assert(c, strings.Contains(out, "false"))
   374  	// Remove
   375  	_, _, err = dockerCmdWithError("plugin", "remove", id[:5])
   376  	assert.NilError(c, err)
   377  	// List returns none
   378  	out, _, err = dockerCmdWithError("plugin", "ls")
   379  	assert.NilError(c, err)
   380  	assert.Assert(c, !strings.Contains(out, name))
   381  }
   382  
   383  func (ps *DockerPluginSuite) TestPluginListDefaultFormat(c *testing.T) {
   384  	config, err := ioutil.TempDir("", "config-file-")
   385  	assert.NilError(c, err)
   386  	defer os.RemoveAll(config)
   387  
   388  	err = ioutil.WriteFile(filepath.Join(config, "config.json"), []byte(`{"pluginsFormat": "raw"}`), 0644)
   389  	assert.NilError(c, err)
   390  
   391  	name := "test:latest"
   392  	client := testEnv.APIClient()
   393  
   394  	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
   395  	defer cancel()
   396  	err = plugin.Create(ctx, client, name, func(cfg *plugin.Config) {
   397  		cfg.Description = "test plugin"
   398  	})
   399  	assert.Assert(c, err == nil, "failed to create test plugin")
   400  
   401  	out, _ := dockerCmd(c, "plugin", "inspect", "--format", "{{.ID}}", name)
   402  	id := strings.TrimSpace(out)
   403  
   404  	// We expect the format to be in `raw + --no-trunc`
   405  	expectedOutput := fmt.Sprintf(`plugin_id: %s
   406  name: %s
   407  description: test plugin
   408  enabled: false`, id, name)
   409  
   410  	out, _ = dockerCmd(c, "--config", config, "plugin", "ls", "--no-trunc")
   411  	assert.Assert(c, strings.Contains(strings.TrimSpace(out), expectedOutput))
   412  }
   413  
   414  func (s *DockerSuite) TestPluginUpgrade(c *testing.T) {
   415  	testRequires(c, DaemonIsLinux, Network, testEnv.IsLocalDaemon, IsAmd64, NotUserNamespace)
   416  	plugin := "cpuguy83/docker-volume-driver-plugin-local:latest"
   417  	pluginV2 := "cpuguy83/docker-volume-driver-plugin-local:v2"
   418  
   419  	dockerCmd(c, "plugin", "install", "--grant-all-permissions", plugin)
   420  	dockerCmd(c, "volume", "create", "--driver", plugin, "bananas")
   421  	dockerCmd(c, "run", "--rm", "-v", "bananas:/apple", "busybox", "sh", "-c", "touch /apple/core")
   422  
   423  	out, _, err := dockerCmdWithError("plugin", "upgrade", "--grant-all-permissions", plugin, pluginV2)
   424  	assert.ErrorContains(c, err, "", out)
   425  	assert.Assert(c, strings.Contains(out, "disabled before upgrading"))
   426  	out, _ = dockerCmd(c, "plugin", "inspect", "--format={{.ID}}", plugin)
   427  	id := strings.TrimSpace(out)
   428  
   429  	// make sure "v2" does not exists
   430  	_, err = os.Stat(filepath.Join(testEnv.DaemonInfo.DockerRootDir, "plugins", id, "rootfs", "v2"))
   431  	assert.Assert(c, os.IsNotExist(err), out)
   432  
   433  	dockerCmd(c, "plugin", "disable", "-f", plugin)
   434  	dockerCmd(c, "plugin", "upgrade", "--grant-all-permissions", "--skip-remote-check", plugin, pluginV2)
   435  
   436  	// make sure "v2" file exists
   437  	_, err = os.Stat(filepath.Join(testEnv.DaemonInfo.DockerRootDir, "plugins", id, "rootfs", "v2"))
   438  	assert.NilError(c, err)
   439  
   440  	dockerCmd(c, "plugin", "enable", plugin)
   441  	dockerCmd(c, "volume", "inspect", "bananas")
   442  	dockerCmd(c, "run", "--rm", "-v", "bananas:/apple", "busybox", "sh", "-c", "ls -lh /apple/core")
   443  }
   444  
   445  func (s *DockerSuite) TestPluginMetricsCollector(c *testing.T) {
   446  	testRequires(c, DaemonIsLinux, Network, testEnv.IsLocalDaemon, IsAmd64)
   447  	d := daemon.New(c, dockerBinary, dockerdBinary)
   448  	d.Start(c)
   449  	defer d.Stop(c)
   450  
   451  	name := "cpuguy83/docker-metrics-plugin-test:latest"
   452  	r := cli.Docker(cli.Args("plugin", "install", "--grant-all-permissions", name), cli.Daemon(d))
   453  	assert.Assert(c, r.Error == nil, r.Combined())
   454  
   455  	// plugin lisens on localhost:19393 and proxies the metrics
   456  	resp, err := http.Get("http://localhost:19393/metrics")
   457  	assert.NilError(c, err)
   458  	defer resp.Body.Close()
   459  
   460  	b, err := ioutil.ReadAll(resp.Body)
   461  	assert.NilError(c, err)
   462  	// check that a known metric is there... don't expect this metric to change over time.. probably safe
   463  	assert.Assert(c, strings.Contains(string(b), "container_actions"))
   464  }