Support plugins in `docker inspect`

This fix tries to address the proposal raised in 28946
to support plugins in `docker inspect`.

The command `docker inspect` already supports
"container", "image", "node", "network", "service", "volume", "task".
However, `--type plugin` is not supported yet at the moment.

This fix address this issue by adding the support of `--type plugin`
for `docker inspect`.

An additional integration test has been added to cover the changes.

This fix fixes 28946.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/integration-cli/docker_cli_inspect_test.go b/integration-cli/docker_cli_inspect_test.go
index d99ae6d091..5d79ad1d85 100644
--- a/integration-cli/docker_cli_inspect_test.go
+++ b/integration-cli/docker_cli_inspect_test.go
@@ -417,3 +417,33 @@ func (s *DockerSuite) TestInspectAmpersand(c *check.C) {
 	out, _ = dockerCmd(c, "inspect", name)
 	c.Assert(out, checker.Contains, `soanni&rtr`)
 }
+
+func (s *DockerSuite) TestInspectPlugin(c *check.C) {
+	testRequires(c, DaemonIsLinux, Network)
+	_, _, err := dockerCmdWithError("plugin", "install", "--grant-all-permissions", pNameWithTag)
+	c.Assert(err, checker.IsNil)
+
+	out, _, err := dockerCmdWithError("inspect", "--type", "plugin", "--format", "{{.Name}}", pNameWithTag)
+	c.Assert(err, checker.IsNil)
+	c.Assert(strings.TrimSpace(out), checker.Equals, pName)
+
+	out, _, err = dockerCmdWithError("inspect", "--format", "{{.Name}}", pNameWithTag)
+	c.Assert(err, checker.IsNil)
+	c.Assert(strings.TrimSpace(out), checker.Equals, pName)
+
+	// Even without tag the inspect still work
+	out, _, err = dockerCmdWithError("inspect", "--type", "plugin", "--format", "{{.Name}}", pName)
+	c.Assert(err, checker.IsNil)
+	c.Assert(strings.TrimSpace(out), checker.Equals, pName)
+
+	out, _, err = dockerCmdWithError("inspect", "--format", "{{.Name}}", pName)
+	c.Assert(err, checker.IsNil)
+	c.Assert(strings.TrimSpace(out), checker.Equals, pName)
+
+	_, _, err = dockerCmdWithError("plugin", "disable", pNameWithTag)
+	c.Assert(err, checker.IsNil)
+
+	out, _, err = dockerCmdWithError("plugin", "remove", pNameWithTag)
+	c.Assert(err, checker.IsNil)
+	c.Assert(out, checker.Contains, pNameWithTag)
+}