| 4fc37a1e | // +build experimental |
| 81fa9feb |
// +build !windows
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"strings"
"github.com/go-check/check"
)
func init() { |
| d592778f |
check.Suite(&DockerExternalVolumeSuite{ |
| 81fa9feb |
ds: &DockerSuite{},
})
}
|
| d592778f |
type eventCounter struct {
activations int
creations int
removals int
mounts int
unmounts int
paths int
}
type DockerExternalVolumeSuite struct { |
| 81fa9feb | server *httptest.Server ds *DockerSuite |
| d592778f | d *Daemon ec *eventCounter |
| 81fa9feb | } |
| d592778f |
func (s *DockerExternalVolumeSuite) SetUpTest(c *check.C) {
s.d = NewDaemon(c) |
| 81fa9feb | s.ds.SetUpTest(c) |
| d592778f |
s.ec = &eventCounter{}
|
| 81fa9feb | } |
| d592778f |
func (s *DockerExternalVolumeSuite) TearDownTest(c *check.C) {
s.d.Stop() |
| 81fa9feb | s.ds.TearDownTest(c) } |
| d592778f |
func (s *DockerExternalVolumeSuite) SetUpSuite(c *check.C) { |
| 81fa9feb |
mux := http.NewServeMux()
s.server = httptest.NewServer(mux)
type pluginRequest struct {
name string
}
mux.HandleFunc("/Plugin.Activate", func(w http.ResponseWriter, r *http.Request) { |
| d592778f | s.ec.activations++ |
| 81fa9feb |
w.Header().Set("Content-Type", "appplication/vnd.docker.plugins.v1+json")
fmt.Fprintln(w, `{"Implements": ["VolumeDriver"]}`)
})
mux.HandleFunc("/VolumeDriver.Create", func(w http.ResponseWriter, r *http.Request) { |
| d592778f | s.ec.creations++ |
| 81fa9feb |
w.Header().Set("Content-Type", "appplication/vnd.docker.plugins.v1+json")
fmt.Fprintln(w, `{}`)
})
mux.HandleFunc("/VolumeDriver.Remove", func(w http.ResponseWriter, r *http.Request) { |
| d592778f | s.ec.removals++ |
| 81fa9feb |
w.Header().Set("Content-Type", "appplication/vnd.docker.plugins.v1+json")
fmt.Fprintln(w, `{}`)
})
mux.HandleFunc("/VolumeDriver.Path", func(w http.ResponseWriter, r *http.Request) { |
| d592778f | s.ec.paths++ |
| 81fa9feb |
var pr pluginRequest
if err := json.NewDecoder(r.Body).Decode(&pr); err != nil {
http.Error(w, err.Error(), 500)
}
p := hostVolumePath(pr.name)
w.Header().Set("Content-Type", "appplication/vnd.docker.plugins.v1+json")
fmt.Fprintln(w, fmt.Sprintf("{\"Mountpoint\": \"%s\"}", p))
})
mux.HandleFunc("/VolumeDriver.Mount", func(w http.ResponseWriter, r *http.Request) { |
| d592778f | s.ec.mounts++ |
| 81fa9feb |
var pr pluginRequest
if err := json.NewDecoder(r.Body).Decode(&pr); err != nil {
http.Error(w, err.Error(), 500)
}
p := hostVolumePath(pr.name)
if err := os.MkdirAll(p, 0755); err != nil {
http.Error(w, err.Error(), 500)
}
if err := ioutil.WriteFile(filepath.Join(p, "test"), []byte(s.server.URL), 0644); err != nil {
http.Error(w, err.Error(), 500)
}
w.Header().Set("Content-Type", "appplication/vnd.docker.plugins.v1+json")
fmt.Fprintln(w, fmt.Sprintf("{\"Mountpoint\": \"%s\"}", p))
})
|
| d592778f |
mux.HandleFunc("/VolumeDriver.Unmount", func(w http.ResponseWriter, r *http.Request) {
s.ec.unmounts++
|
| 81fa9feb |
var pr pluginRequest
if err := json.NewDecoder(r.Body).Decode(&pr); err != nil {
http.Error(w, err.Error(), 500)
}
p := hostVolumePath(pr.name)
if err := os.RemoveAll(p); err != nil {
http.Error(w, err.Error(), 500)
}
w.Header().Set("Content-Type", "appplication/vnd.docker.plugins.v1+json")
fmt.Fprintln(w, `{}`)
})
if err := os.MkdirAll("/usr/share/docker/plugins", 0755); err != nil {
c.Fatal(err)
}
if err := ioutil.WriteFile("/usr/share/docker/plugins/test-external-volume-driver.spec", []byte(s.server.URL), 0644); err != nil {
c.Fatal(err)
}
}
|
| d592778f |
func (s *DockerExternalVolumeSuite) TearDownSuite(c *check.C) { |
| 81fa9feb |
s.server.Close()
if err := os.RemoveAll("/usr/share/docker/plugins"); err != nil {
c.Fatal(err)
}
}
|
| d592778f |
func (s *DockerExternalVolumeSuite) TestStartExternalNamedVolumeDriver(c *check.C) {
if err := s.d.StartWithBusybox(); err != nil {
c.Fatal(err)
}
out, err := s.d.Cmd("run", "--rm", "--name", "test-data", "-v", "external-volume-test:/tmp/external-volume-test", "--volume-driver", "test-external-volume-driver", "busybox:latest", "cat", "/tmp/external-volume-test/test")
if err != nil {
c.Fatal(err) |
| 81fa9feb |
}
if !strings.Contains(out, s.server.URL) {
c.Fatalf("External volume mount failed. Output: %s\n", out)
} |
| d592778f |
p := hostVolumePath("external-volume-test")
_, err = os.Lstat(p)
if err == nil {
c.Fatalf("Expected error checking volume path in host: %s\n", p)
}
if !os.IsNotExist(err) {
c.Fatalf("Expected volume path in host to not exist: %s, %v\n", p, err)
}
c.Assert(s.ec.activations, check.Equals, 1)
c.Assert(s.ec.creations, check.Equals, 1)
c.Assert(s.ec.removals, check.Equals, 1)
c.Assert(s.ec.mounts, check.Equals, 1)
c.Assert(s.ec.unmounts, check.Equals, 1)
}
func (s *DockerExternalVolumeSuite) TestStartExternalVolumeUnnamedDriver(c *check.C) {
if err := s.d.StartWithBusybox(); err != nil {
c.Fatal(err)
}
out, err := s.d.Cmd("run", "--rm", "--name", "test-data", "-v", "/tmp/external-volume-test", "--volume-driver", "test-external-volume-driver", "busybox:latest", "cat", "/tmp/external-volume-test/test")
if err != nil {
c.Fatal(err)
}
if !strings.Contains(out, s.server.URL) {
c.Fatalf("External volume mount failed. Output: %s\n", out)
}
c.Assert(s.ec.activations, check.Equals, 1)
c.Assert(s.ec.creations, check.Equals, 1)
c.Assert(s.ec.removals, check.Equals, 1)
c.Assert(s.ec.mounts, check.Equals, 1)
c.Assert(s.ec.unmounts, check.Equals, 1)
}
func (s DockerExternalVolumeSuite) TestStartExternalVolumeDriverVolumesFrom(c *check.C) {
if err := s.d.StartWithBusybox(); err != nil {
c.Fatal(err)
}
if _, err := s.d.Cmd("run", "-d", "--name", "vol-test1", "-v", "/foo", "--volume-driver", "test-external-volume-driver", "busybox:latest"); err != nil {
c.Fatal(err)
}
if _, err := s.d.Cmd("run", "--rm", "--volumes-from", "vol-test1", "--name", "vol-test2", "busybox", "ls", "/tmp"); err != nil {
c.Fatal(err)
}
if _, err := s.d.Cmd("rm", "-f", "vol-test1"); err != nil {
c.Fatal(err)
}
c.Assert(s.ec.activations, check.Equals, 1)
c.Assert(s.ec.creations, check.Equals, 2)
c.Assert(s.ec.removals, check.Equals, 1)
c.Assert(s.ec.mounts, check.Equals, 2)
c.Assert(s.ec.unmounts, check.Equals, 2)
}
func (s DockerExternalVolumeSuite) TestStartExternalVolumeDriverDeleteContainer(c *check.C) {
if err := s.d.StartWithBusybox(); err != nil {
c.Fatal(err)
}
if _, err := s.d.Cmd("run", "-d", "--name", "vol-test1", "-v", "/foo", "--volume-driver", "test-external-volume-driver", "busybox:latest"); err != nil {
c.Fatal(err)
}
if _, err := s.d.Cmd("rm", "-fv", "vol-test1"); err != nil {
c.Fatal(err)
}
c.Assert(s.ec.activations, check.Equals, 1)
c.Assert(s.ec.creations, check.Equals, 1)
c.Assert(s.ec.removals, check.Equals, 1)
c.Assert(s.ec.mounts, check.Equals, 1)
c.Assert(s.ec.unmounts, check.Equals, 1)
}
func hostVolumePath(name string) string {
return fmt.Sprintf("/var/lib/docker/volumes/%s", name) |
| 81fa9feb | } |