compose/local/compose/create.go

878 lines
24 KiB
Go

/*
Copyright 2020 Docker Compose CLI authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package compose
import (
"context"
"fmt"
"path/filepath"
"strconv"
"strings"
"github.com/compose-spec/compose-go/types"
moby "github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/mount"
"github.com/docker/docker/api/types/network"
"github.com/docker/docker/api/types/strslice"
volume_api "github.com/docker/docker/api/types/volume"
"github.com/docker/docker/errdefs"
"github.com/docker/go-connections/nat"
"github.com/docker/go-units"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/docker/compose-cli/api/compose"
"github.com/docker/compose-cli/api/progress"
convert "github.com/docker/compose-cli/local/moby"
"github.com/docker/compose-cli/utils"
)
func (s *composeService) Create(ctx context.Context, project *types.Project, opts compose.CreateOptions) error {
if len(opts.Services) == 0 {
opts.Services = project.ServiceNames()
}
err := s.ensureImagesExists(ctx, project, opts.QuietPull)
if err != nil {
return err
}
prepareNetworks(project)
err = prepareVolumes(project)
if err != nil {
return err
}
if err := s.ensureNetworks(ctx, project.Networks); err != nil {
return err
}
if err := s.ensureProjectVolumes(ctx, project); err != nil {
return err
}
var observedState Containers
observedState, err = s.getContainers(ctx, project.Name, oneOffInclude, true)
if err != nil {
return err
}
containerState := NewContainersState(observedState)
ctx = context.WithValue(ctx, ContainersKey{}, containerState)
allServices := project.AllServices()
allServiceNames := []string{}
for _, service := range allServices {
allServiceNames = append(allServiceNames, service.Name)
}
orphans := observedState.filter(isNotService(allServiceNames...))
if len(orphans) > 0 {
if opts.RemoveOrphans {
w := progress.ContextWriter(ctx)
err := s.removeContainers(ctx, w, orphans, nil)
if err != nil {
return err
}
} else {
logrus.Warnf("Found orphan containers (%s) for this project. If "+
"you removed or renamed this service in your compose "+
"file, you can run this command with the "+
"--remove-orphans flag to clean it up.", orphans.names())
}
}
prepareServicesDependsOn(project)
return InDependencyOrder(ctx, project, func(c context.Context, service types.ServiceConfig) error {
if utils.StringContains(opts.Services, service.Name) {
return s.ensureService(c, project, service, opts.Recreate, opts.Inherit, opts.Timeout)
}
return s.ensureService(c, project, service, opts.RecreateDependencies, opts.Inherit, opts.Timeout)
})
}
func prepareVolumes(p *types.Project) error {
for i := range p.Services {
volumesFrom, dependServices, err := getVolumesFrom(p, p.Services[i].VolumesFrom)
if err != nil {
return err
}
p.Services[i].VolumesFrom = volumesFrom
if len(dependServices) > 0 {
if p.Services[i].DependsOn == nil {
p.Services[i].DependsOn = make(types.DependsOnConfig, len(dependServices))
}
for _, service := range p.Services {
if utils.StringContains(dependServices, service.Name) {
p.Services[i].DependsOn[service.Name] = types.ServiceDependency{
Condition: types.ServiceConditionStarted,
}
}
}
}
}
return nil
}
func prepareNetworks(project *types.Project) {
for k, network := range project.Networks {
network.Labels = network.Labels.Add(networkLabel, k)
network.Labels = network.Labels.Add(projectLabel, project.Name)
network.Labels = network.Labels.Add(versionLabel, ComposeVersion)
project.Networks[k] = network
}
}
func prepareServicesDependsOn(p *types.Project) {
outLoop:
for i := range p.Services {
networkDependency := getDependentServiceFromMode(p.Services[i].NetworkMode)
ipcDependency := getDependentServiceFromMode(p.Services[i].Ipc)
if networkDependency == "" && ipcDependency == "" {
continue
}
if p.Services[i].DependsOn == nil {
p.Services[i].DependsOn = make(types.DependsOnConfig)
}
for _, service := range p.Services {
if service.Name == networkDependency || service.Name == ipcDependency {
p.Services[i].DependsOn[service.Name] = types.ServiceDependency{
Condition: types.ServiceConditionStarted,
}
continue outLoop
}
}
}
}
func (s *composeService) ensureNetworks(ctx context.Context, networks types.Networks) error {
for _, network := range networks {
err := s.ensureNetwork(ctx, network)
if err != nil {
return err
}
}
return nil
}
func (s *composeService) ensureProjectVolumes(ctx context.Context, project *types.Project) error {
for k, volume := range project.Volumes {
volume.Labels = volume.Labels.Add(volumeLabel, k)
volume.Labels = volume.Labels.Add(projectLabel, project.Name)
volume.Labels = volume.Labels.Add(versionLabel, ComposeVersion)
err := s.ensureVolume(ctx, volume)
if err != nil {
return err
}
}
return nil
}
func getImageName(service types.ServiceConfig, projectName string) string {
imageName := service.Image
if imageName == "" {
imageName = projectName + "_" + service.Name
}
return imageName
}
func (s *composeService) getCreateOptions(ctx context.Context, p *types.Project, service types.ServiceConfig, number int, inherit *moby.Container,
autoRemove bool) (*container.Config, *container.HostConfig, *network.NetworkingConfig, error) {
hash, err := utils.ServiceHash(service)
if err != nil {
return nil, nil, nil, err
}
labels := map[string]string{}
for k, v := range service.Labels {
labels[k] = v
}
labels[projectLabel] = p.Name
labels[serviceLabel] = service.Name
labels[versionLabel] = ComposeVersion
if _, ok := service.Labels[oneoffLabel]; !ok {
labels[oneoffLabel] = "False"
}
labels[configHashLabel] = hash
labels[workingDirLabel] = p.WorkingDir
labels[configFilesLabel] = strings.Join(p.ComposeFiles, ",")
labels[containerNumberLabel] = strconv.Itoa(number)
var (
runCmd strslice.StrSlice
entrypoint strslice.StrSlice
)
if len(service.Command) > 0 {
runCmd = strslice.StrSlice(service.Command)
}
if len(service.Entrypoint) > 0 {
entrypoint = strslice.StrSlice(service.Entrypoint)
}
var (
tty = service.Tty
stdinOpen = service.StdinOpen
attachStdin = false
)
volumeMounts, binds, mounts, err := s.buildContainerVolumes(ctx, *p, service, inherit)
if err != nil {
return nil, nil, nil, err
}
containerConfig := container.Config{
Hostname: service.Hostname,
Domainname: service.DomainName,
User: service.User,
ExposedPorts: buildContainerPorts(service),
Tty: tty,
OpenStdin: stdinOpen,
StdinOnce: attachStdin && stdinOpen,
AttachStdin: attachStdin,
AttachStderr: true,
AttachStdout: true,
Cmd: runCmd,
Image: getImageName(service, p.Name),
WorkingDir: service.WorkingDir,
Entrypoint: entrypoint,
NetworkDisabled: service.NetworkMode == "disabled",
MacAddress: service.MacAddress,
Labels: labels,
StopSignal: service.StopSignal,
Env: convert.ToMobyEnv(service.Environment),
Healthcheck: convert.ToMobyHealthCheck(service.HealthCheck),
Volumes: volumeMounts,
StopTimeout: convert.ToSeconds(service.StopGracePeriod),
}
portBindings := buildContainerPortBindingOptions(service)
resources := getDeployResources(service)
networkMode, err := getMode(ctx, service.Name, service.NetworkMode)
if err != nil {
return nil, nil, nil, err
}
if networkMode == "" {
networkMode = getDefaultNetworkMode(p, service)
}
ipcmode, err := getMode(ctx, service.Name, service.Ipc)
if err != nil {
return nil, nil, nil, err
}
shmSize := int64(0)
if service.ShmSize != "" {
shmSize, err = strconv.ParseInt(service.ShmSize, 10, 64)
if err != nil {
return nil, nil, nil, err
}
}
tmpfs := map[string]string{}
for _, t := range service.Tmpfs {
if arr := strings.SplitN(t, ":", 2); len(arr) > 1 {
tmpfs[arr[0]] = arr[1]
} else {
tmpfs[arr[0]] = ""
}
}
var logConfig container.LogConfig
if service.Logging != nil {
logConfig = container.LogConfig{
Type: service.Logging.Driver,
Config: service.Logging.Options,
}
}
hostConfig := container.HostConfig{
AutoRemove: autoRemove,
Binds: binds,
Mounts: mounts,
CapAdd: strslice.StrSlice(service.CapAdd),
CapDrop: strslice.StrSlice(service.CapDrop),
NetworkMode: container.NetworkMode(networkMode),
Init: service.Init,
IpcMode: container.IpcMode(ipcmode),
ReadonlyRootfs: service.ReadOnly,
RestartPolicy: getRestartPolicy(service),
ShmSize: shmSize,
Sysctls: service.Sysctls,
PortBindings: portBindings,
Resources: resources,
VolumeDriver: service.VolumeDriver,
VolumesFrom: service.VolumesFrom,
DNS: service.DNS,
DNSSearch: service.DNSSearch,
DNSOptions: service.DNSOpts,
ExtraHosts: service.ExtraHosts,
SecurityOpt: service.SecurityOpt,
UsernsMode: container.UsernsMode(service.UserNSMode),
Privileged: service.Privileged,
PidMode: container.PidMode(service.Pid),
Tmpfs: tmpfs,
Isolation: container.Isolation(service.Isolation),
LogConfig: logConfig,
}
networkConfig := buildDefaultNetworkConfig(service, container.NetworkMode(networkMode), getContainerName(p.Name, service, number))
return &containerConfig, &hostConfig, networkConfig, nil
}
func getDefaultNetworkMode(project *types.Project, service types.ServiceConfig) string {
mode := "none"
if len(project.Networks) > 0 {
for name := range getNetworksForService(service) {
mode = project.Networks[name].Name
break
}
}
return mode
}
func getRestartPolicy(service types.ServiceConfig) container.RestartPolicy {
var restart container.RestartPolicy
if service.Restart != "" {
split := strings.Split(service.Restart, ":")
var attempts int
if len(split) > 1 {
attempts, _ = strconv.Atoi(split[1])
}
restart = container.RestartPolicy{
Name: split[0],
MaximumRetryCount: attempts,
}
}
if service.Deploy != nil && service.Deploy.RestartPolicy != nil {
policy := *service.Deploy.RestartPolicy
var attempts int
if policy.MaxAttempts != nil {
attempts = int(*policy.MaxAttempts)
}
restart = container.RestartPolicy{
Name: policy.Condition,
MaximumRetryCount: attempts,
}
}
return restart
}
func getDeployResources(s types.ServiceConfig) container.Resources {
resources := container.Resources{}
if s.Deploy == nil {
return resources
}
reservations := s.Deploy.Resources.Reservations
if reservations == nil || len(reservations.Devices) == 0 {
return resources
}
for _, device := range reservations.Devices {
resources.DeviceRequests = append(resources.DeviceRequests, container.DeviceRequest{
Capabilities: [][]string{device.Capabilities},
Count: int(device.Count),
DeviceIDs: device.IDs,
Driver: device.Driver,
})
}
for _, device := range s.Devices {
// FIXME should use docker/cli parseDevice, unfortunately private
src := ""
dst := ""
permissions := "rwm"
arr := strings.Split(device, ":")
switch len(arr) {
case 3:
permissions = arr[2]
fallthrough
case 2:
dst = arr[1]
fallthrough
case 1:
src = arr[0]
}
resources.Devices = append(resources.Devices, container.DeviceMapping{
PathOnHost: src,
PathInContainer: dst,
CgroupPermissions: permissions,
})
}
for name, u := range s.Ulimits {
resources.Ulimits = append(resources.Ulimits, &units.Ulimit{
Name: name,
Hard: int64(u.Hard),
Soft: int64(u.Soft),
})
}
return resources
}
func buildContainerPorts(s types.ServiceConfig) nat.PortSet {
ports := nat.PortSet{}
for _, p := range s.Ports {
p := nat.Port(fmt.Sprintf("%d/%s", p.Target, p.Protocol))
ports[p] = struct{}{}
}
return ports
}
func buildContainerPortBindingOptions(s types.ServiceConfig) nat.PortMap {
bindings := nat.PortMap{}
for _, port := range s.Ports {
p := nat.Port(fmt.Sprintf("%d/%s", port.Target, port.Protocol))
bind := []nat.PortBinding{}
binding := nat.PortBinding{
HostIP: port.HostIP,
}
if port.Published > 0 {
binding.HostPort = fmt.Sprint(port.Published)
}
bind = append(bind, binding)
bindings[p] = bind
}
return bindings
}
func getVolumesFrom(project *types.Project, volumesFrom []string) ([]string, []string, error) {
var volumes = []string{}
var services = []string{}
// parse volumes_from
if len(volumesFrom) == 0 {
return volumes, services, nil
}
for _, vol := range volumesFrom {
spec := strings.Split(vol, ":")
if len(spec) == 0 {
continue
}
if spec[0] == "container" {
volumes = append(volumes, strings.Join(spec[1:], ":"))
continue
}
serviceName := spec[0]
services = append(services, serviceName)
service, err := project.GetService(serviceName)
if err != nil {
return nil, nil, err
}
firstContainer := getContainerName(project.Name, service, 1)
v := fmt.Sprintf("%s:%s", firstContainer, strings.Join(spec[1:], ":"))
volumes = append(volumes, v)
}
return volumes, services, nil
}
func getDependentServiceFromMode(mode string) string {
if strings.HasPrefix(mode, types.NetworkModeServicePrefix) {
return mode[len(types.NetworkModeServicePrefix):]
}
return ""
}
func (s *composeService) buildContainerVolumes(ctx context.Context, p types.Project, service types.ServiceConfig,
inherit *moby.Container) (map[string]struct{}, []string, []mount.Mount, error) {
var mounts = []mount.Mount{}
image := getImageName(service, p.Name)
imgInspect, _, err := s.apiClient.ImageInspectWithRaw(ctx, image)
if err != nil {
return nil, nil, nil, err
}
mountOptions, err := buildContainerMountOptions(p, service, imgInspect, inherit)
if err != nil {
return nil, nil, nil, err
}
// filter binds and volumes mount targets
volumeMounts := map[string]struct{}{}
binds := []string{}
for _, m := range mountOptions {
if m.Type == mount.TypeVolume {
volumeMounts[m.Target] = struct{}{}
if m.Source != "" {
binds = append(binds, fmt.Sprintf("%s:%s:rw", m.Source, m.Target))
}
}
}
for _, m := range mountOptions {
if m.Type == mount.TypeBind || m.Type == mount.TypeTmpfs {
mounts = append(mounts, m)
}
}
return volumeMounts, binds, mounts, nil
}
func buildContainerMountOptions(p types.Project, s types.ServiceConfig, img moby.ImageInspect, inherit *moby.Container) ([]mount.Mount, error) {
var mounts = map[string]mount.Mount{}
if inherit != nil {
for _, m := range inherit.Mounts {
if m.Type == "tmpfs" {
continue
}
src := m.Source
if m.Type == "volume" {
src = m.Name
}
mounts[m.Destination] = mount.Mount{
Type: m.Type,
Source: src,
Target: m.Destination,
ReadOnly: !m.RW,
}
}
}
if img.ContainerConfig != nil {
for k := range img.ContainerConfig.Volumes {
m, err := buildMount(p, types.ServiceVolumeConfig{
Type: types.VolumeTypeVolume,
Target: k,
})
if err != nil {
return nil, err
}
mounts[k] = m
}
}
mounts, err := fillBindMounts(p, s, mounts)
if err != nil {
return nil, err
}
values := make([]mount.Mount, 0, len(mounts))
for _, v := range mounts {
values = append(values, v)
}
return values, nil
}
func fillBindMounts(p types.Project, s types.ServiceConfig, m map[string]mount.Mount) (map[string]mount.Mount, error) {
for _, v := range s.Volumes {
bindMount, err := buildMount(p, v)
if err != nil {
return nil, err
}
m[bindMount.Target] = bindMount
}
secrets, err := buildContainerSecretMounts(p, s)
if err != nil {
return nil, err
}
for _, s := range secrets {
if _, found := m[s.Target]; found {
continue
}
m[s.Target] = s
}
configs, err := buildContainerConfigMounts(p, s)
if err != nil {
return nil, err
}
for _, c := range configs {
if _, found := m[c.Target]; found {
continue
}
m[c.Target] = c
}
return m, nil
}
func buildContainerConfigMounts(p types.Project, s types.ServiceConfig) ([]mount.Mount, error) {
var mounts = map[string]mount.Mount{}
configsBaseDir := "/"
for _, config := range s.Configs {
target := config.Target
if config.Target == "" {
target = configsBaseDir + config.Source
} else if !isUnixAbs(config.Target) {
target = configsBaseDir + config.Target
}
definedConfig := p.Configs[config.Source]
if definedConfig.External.External {
return nil, fmt.Errorf("unsupported external config %s", definedConfig.Name)
}
bindMount, err := buildMount(p, types.ServiceVolumeConfig{
Type: types.VolumeTypeBind,
Source: definedConfig.File,
Target: target,
ReadOnly: true,
})
if err != nil {
return nil, err
}
mounts[target] = bindMount
}
values := make([]mount.Mount, 0, len(mounts))
for _, v := range mounts {
values = append(values, v)
}
return values, nil
}
func buildContainerSecretMounts(p types.Project, s types.ServiceConfig) ([]mount.Mount, error) {
var mounts = map[string]mount.Mount{}
secretsDir := "/run/secrets/"
for _, secret := range s.Secrets {
target := secret.Target
if secret.Target == "" {
target = secretsDir + secret.Source
} else if !isUnixAbs(secret.Target) {
target = secretsDir + secret.Target
}
definedSecret := p.Secrets[secret.Source]
if definedSecret.External.External {
return nil, fmt.Errorf("unsupported external secret %s", definedSecret.Name)
}
mount, err := buildMount(p, types.ServiceVolumeConfig{
Type: types.VolumeTypeBind,
Source: definedSecret.File,
Target: target,
ReadOnly: true,
})
if err != nil {
return nil, err
}
mounts[target] = mount
}
values := make([]mount.Mount, 0, len(mounts))
for _, v := range mounts {
values = append(values, v)
}
return values, nil
}
func isUnixAbs(path string) bool {
return strings.HasPrefix(path, "/")
}
func buildMount(project types.Project, volume types.ServiceVolumeConfig) (mount.Mount, error) {
source := volume.Source
if volume.Type == types.VolumeTypeBind && !filepath.IsAbs(source) {
// volume source has already been prefixed with workdir if required, by compose-go project loader
var err error
source, err = filepath.Abs(source)
if err != nil {
return mount.Mount{}, err
}
}
if volume.Type == types.VolumeTypeVolume {
if volume.Source != "" {
pVolume, ok := project.Volumes[volume.Source]
if ok {
source = pVolume.Name
}
}
}
return mount.Mount{
Type: mount.Type(volume.Type),
Source: source,
Target: volume.Target,
ReadOnly: volume.ReadOnly,
Consistency: mount.Consistency(volume.Consistency),
BindOptions: buildBindOption(volume.Bind),
VolumeOptions: buildVolumeOptions(volume.Volume),
TmpfsOptions: buildTmpfsOptions(volume.Tmpfs),
}, nil
}
func buildBindOption(bind *types.ServiceVolumeBind) *mount.BindOptions {
if bind == nil {
return nil
}
return &mount.BindOptions{
Propagation: mount.Propagation(bind.Propagation),
// NonRecursive: false, FIXME missing from model ?
}
}
func buildVolumeOptions(vol *types.ServiceVolumeVolume) *mount.VolumeOptions {
if vol == nil {
return nil
}
return &mount.VolumeOptions{
NoCopy: vol.NoCopy,
// Labels: , // FIXME missing from model ?
// DriverConfig: , // FIXME missing from model ?
}
}
func buildTmpfsOptions(tmpfs *types.ServiceVolumeTmpfs) *mount.TmpfsOptions {
if tmpfs == nil {
return nil
}
return &mount.TmpfsOptions{
SizeBytes: tmpfs.Size,
// Mode: , // FIXME missing from model ?
}
}
func buildDefaultNetworkConfig(s types.ServiceConfig, networkMode container.NetworkMode, containerName string) *network.NetworkingConfig {
config := map[string]*network.EndpointSettings{}
net := string(networkMode)
config[net] = &network.EndpointSettings{
Aliases: append(getAliases(s, s.Networks[net]), containerName),
}
return &network.NetworkingConfig{
EndpointsConfig: config,
}
}
func getAliases(s types.ServiceConfig, c *types.ServiceNetworkConfig) []string {
aliases := []string{s.Name}
if c != nil {
aliases = append(aliases, c.Aliases...)
}
return aliases
}
func getMode(ctx context.Context, serviceName string, mode string) (string, error) {
cState, err := GetContextContainerState(ctx)
if err != nil {
return "", nil
}
observedState := cState.GetContainers()
depService := getDependentServiceFromMode(mode)
if depService != "" {
depServiceContainers := observedState.filter(isService(depService))
if len(depServiceContainers) > 0 {
return types.NetworkModeContainerPrefix + depServiceContainers[0].ID, nil
}
return "", fmt.Errorf(`no containers started for %q in service %q -> %v`,
mode, serviceName, observedState)
}
return mode, nil
}
func getNetworksForService(s types.ServiceConfig) map[string]*types.ServiceNetworkConfig {
if len(s.Networks) > 0 {
return s.Networks
}
if s.NetworkMode != "" {
return nil
}
return map[string]*types.ServiceNetworkConfig{"default": nil}
}
func (s *composeService) ensureNetwork(ctx context.Context, n types.NetworkConfig) error {
_, err := s.apiClient.NetworkInspect(ctx, n.Name, moby.NetworkInspectOptions{})
if err != nil {
if errdefs.IsNotFound(err) {
if n.External.External {
return fmt.Errorf("network %s declared as external, but could not be found", n.Name)
}
createOpts := moby.NetworkCreate{
// TODO NameSpace Labels
Labels: n.Labels,
Driver: n.Driver,
Options: n.DriverOpts,
Internal: n.Internal,
Attachable: n.Attachable,
}
if n.Ipam.Driver != "" || len(n.Ipam.Config) > 0 {
createOpts.IPAM = &network.IPAM{}
}
if n.Ipam.Driver != "" {
createOpts.IPAM.Driver = n.Ipam.Driver
}
for _, ipamConfig := range n.Ipam.Config {
config := network.IPAMConfig{
Subnet: ipamConfig.Subnet,
}
createOpts.IPAM.Config = append(createOpts.IPAM.Config, config)
}
networkEventName := fmt.Sprintf("Network %q", n.Name)
w := progress.ContextWriter(ctx)
w.Event(progress.CreatingEvent(networkEventName))
if _, err := s.apiClient.NetworkCreate(ctx, n.Name, createOpts); err != nil {
w.Event(progress.ErrorEvent(networkEventName))
return errors.Wrapf(err, "failed to create network %s", n.Name)
}
w.Event(progress.CreatedEvent(networkEventName))
return nil
}
return err
}
return nil
}
func (s *composeService) ensureNetworkDown(ctx context.Context, networkID string, networkName string) error {
w := progress.ContextWriter(ctx)
eventName := fmt.Sprintf("Network %q", networkName)
w.Event(progress.RemovingEvent(eventName))
if err := s.apiClient.NetworkRemove(ctx, networkID); err != nil {
w.Event(progress.ErrorEvent(eventName))
return errors.Wrapf(err, fmt.Sprintf("failed to create network %s", networkID))
}
w.Event(progress.RemovedEvent(eventName))
return nil
}
func (s *composeService) ensureVolume(ctx context.Context, volume types.VolumeConfig) error {
// TODO could identify volume by label vs name
_, err := s.apiClient.VolumeInspect(ctx, volume.Name)
if err != nil {
if !errdefs.IsNotFound(err) {
return err
}
eventName := fmt.Sprintf("Volume %q", volume.Name)
w := progress.ContextWriter(ctx)
w.Event(progress.CreatingEvent(eventName))
_, err := s.apiClient.VolumeCreate(ctx, volume_api.VolumeCreateBody{
Labels: volume.Labels,
Name: volume.Name,
Driver: volume.Driver,
DriverOpts: volume.DriverOpts,
})
if err != nil {
w.Event(progress.ErrorEvent(eventName))
return err
}
w.Event(progress.CreatedEvent(eventName))
}
return nil
}