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