func (m *UpdateServiceSnapshotByContainer) Process() error {
_, imageName := m.info.GetName()
cached, err := utils.IsImageCached(imageName)
if err != nil {
fmt.Println(err)
return err
}
if !cached {
//TODO: remove this image to save server disk
err := utils.PullImage(imageName)
if err != nil {
return err
}
}
var config container.Config
config.Image = imageName
config.Cmd = []string{snapshotProcess, m.info.CallbackID, m.info.Host, m.info.DataProto}
var hostConfig container.HostConfig
hostConfig.Binds = append(hostConfig.Binds, fmt.Sprintf("%s:%s", m.info.DataURL, snapshotMountDir))
containerName := "scan-" + m.info.CallbackID
err = utils.StartContainer(config, hostConfig, containerName)
return err
}
func TestUtilsContainer(t *testing.T) {
//TODO: dockyard dev team should provide small testing containers.
imageName := "google/nodejs"
containerName := ""
cached, err := utils.IsImageCached(imageName)
if err == utils.ErrorsNoDockerClient {
fmt.Println("Please start a docker daemon to continue the container operation test")
return
}
assert.Nil(t, err, "Fail to load Image")
if !cached {
err := utils.PullImage(imageName)
assert.Nil(t, err, "Fail to pull image")
}
tmpFile, err := ioutil.TempFile("/tmp", "dockyard-test-container-oper")
assert.Nil(t, err, "System err, fail to create temp file")
defer os.Remove(tmpFile.Name())
var config container.Config
config.Image = imageName
config.Cmd = []string{"touch", tmpFile.Name()}
var hostConfig container.HostConfig
hostConfig.Binds = append(hostConfig.Binds, "/tmp:/tmp")
utils.StartContainer(config, hostConfig, containerName)
//TODO: stop, remove the container process
assert.Equal(t, true, utils.IsFileExist(tmpFile.Name()), "Fail to touch file by using StartContainer")
}
func (cli *DockerCli) createContainer(config *container.Config, hostConfig *container.HostConfig, networkingConfig *networktypes.NetworkingConfig, cidfile, name string) (*types.ContainerCreateResponse, error) {
var containerIDFile *cidFile
if cidfile != "" {
var err error
if containerIDFile, err = newCIDFile(cidfile); err != nil {
return nil, err
}
defer containerIDFile.Close()
}
ref, err := reference.ParseNamed(config.Image)
if err != nil {
return nil, err
}
ref = reference.WithDefaultTag(ref)
var trustedRef reference.Canonical
if ref, ok := ref.(reference.NamedTagged); ok && isTrusted() {
var err error
trustedRef, err = cli.trustedReference(ref)
if err != nil {
return nil, err
}
config.Image = trustedRef.String()
}
//create the container
response, err := cli.client.ContainerCreate(config, hostConfig, networkingConfig, name)
//if image not found try to pull it
if err != nil {
if client.IsErrImageNotFound(err) {
fmt.Fprintf(cli.err, "Unable to find image '%s' locally\n", ref.String())
// we don't want to write to stdout anything apart from container.ID
if err = cli.pullImageCustomOut(config.Image, cli.err); err != nil {
return nil, err
}
if ref, ok := ref.(reference.NamedTagged); ok && trustedRef != nil {
if err := cli.tagTrusted(trustedRef, ref); err != nil {
return nil, err
}
}
// Retry
var retryErr error
response, retryErr = cli.client.ContainerCreate(config, hostConfig, networkingConfig, name)
if retryErr != nil {
return nil, retryErr
}
} else {
return nil, err
}
}
for _, warning := range response.Warnings {
fmt.Fprintf(cli.err, "WARNING: %s\n", warning)
}
if containerIDFile != nil {
if err = containerIDFile.Write(response.ID); err != nil {
return nil, err
}
}
return &response, nil
}