DockerCLI/cli/command/formatter/service.go

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package formatter
import (
"fmt"
"strings"
"time"
"github.com/docker/cli/cli/command/inspect"
"github.com/docker/distribution/reference"
"github.com/docker/docker/api/types"
mounttypes "github.com/docker/docker/api/types/mount"
"github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/pkg/stringid"
units "github.com/docker/go-units"
"github.com/pkg/errors"
)
const serviceInspectPrettyTemplate Format = `
ID: {{.ID}}
Name: {{.Name}}
{{- if .Labels }}
Labels:
{{- range $k, $v := .Labels }}
{{ $k }}{{if $v }}={{ $v }}{{ end }}
{{- end }}{{ end }}
Service Mode:
{{- if .IsModeGlobal }} Global
{{- else if .IsModeReplicated }} Replicated
{{- if .ModeReplicatedReplicas }}
Replicas: {{ .ModeReplicatedReplicas }}
{{- end }}{{ end }}
{{- if .HasUpdateStatus }}
UpdateStatus:
State: {{ .UpdateStatusState }}
{{- if .HasUpdateStatusStarted }}
Started: {{ .UpdateStatusStarted }}
{{- end }}
{{- if .UpdateIsCompleted }}
Completed: {{ .UpdateStatusCompleted }}
{{- end }}
Message: {{ .UpdateStatusMessage }}
{{- end }}
Placement:
{{- if .TaskPlacementConstraints }}
Constraints: {{ .TaskPlacementConstraints }}
{{- end }}
{{- if .TaskPlacementPreferences }}
Preferences: {{ .TaskPlacementPreferences }}
{{- end }}
{{- if .HasUpdateConfig }}
UpdateConfig:
Parallelism: {{ .UpdateParallelism }}
{{- if .HasUpdateDelay}}
Delay: {{ .UpdateDelay }}
{{- end }}
On failure: {{ .UpdateOnFailure }}
{{- if .HasUpdateMonitor}}
Monitoring Period: {{ .UpdateMonitor }}
{{- end }}
Max failure ratio: {{ .UpdateMaxFailureRatio }}
Update order: {{ .UpdateOrder }}
{{- end }}
{{- if .HasRollbackConfig }}
RollbackConfig:
Parallelism: {{ .RollbackParallelism }}
{{- if .HasRollbackDelay}}
Delay: {{ .RollbackDelay }}
{{- end }}
On failure: {{ .RollbackOnFailure }}
{{- if .HasRollbackMonitor}}
Monitoring Period: {{ .RollbackMonitor }}
{{- end }}
Max failure ratio: {{ .RollbackMaxFailureRatio }}
Rollback order: {{ .RollbackOrder }}
{{- end }}
ContainerSpec:
Image: {{ .ContainerImage }}
{{- if .ContainerArgs }}
Args: {{ range $arg := .ContainerArgs }}{{ $arg }} {{ end }}
{{- end -}}
{{- if .ContainerEnv }}
Env: {{ range $env := .ContainerEnv }}{{ $env }} {{ end }}
{{- end -}}
{{- if .ContainerWorkDir }}
Dir: {{ .ContainerWorkDir }}
{{- end -}}
{{- if .ContainerUser }}
User: {{ .ContainerUser }}
{{- end }}
{{- if .ContainerMounts }}
Mounts:
{{- end }}
{{- range $mount := .ContainerMounts }}
Target = {{ $mount.Target }}
Source = {{ $mount.Source }}
ReadOnly = {{ $mount.ReadOnly }}
Type = {{ $mount.Type }}
{{- end -}}
{{- if .HasResources }}
Resources:
{{- if .HasResourceReservations }}
Reservations:
{{- if gt .ResourceReservationNanoCPUs 0.0 }}
CPU: {{ .ResourceReservationNanoCPUs }}
{{- end }}
{{- if .ResourceReservationMemory }}
Memory: {{ .ResourceReservationMemory }}
{{- end }}{{ end }}
{{- if .HasResourceLimits }}
Limits:
{{- if gt .ResourceLimitsNanoCPUs 0.0 }}
CPU: {{ .ResourceLimitsNanoCPUs }}
{{- end }}
{{- if .ResourceLimitMemory }}
Memory: {{ .ResourceLimitMemory }}
{{- end }}{{ end }}{{ end }}
{{- if .Networks }}
Networks:
{{- range $network := .Networks }} {{ $network }}{{ end }} {{ end }}
Endpoint Mode: {{ .EndpointMode }}
{{- if .Ports }}
Ports:
{{- range $port := .Ports }}
PublishedPort = {{ $port.PublishedPort }}
Protocol = {{ $port.Protocol }}
TargetPort = {{ $port.TargetPort }}
PublishMode = {{ $port.PublishMode }}
{{- end }} {{ end -}}
`
// NewServiceFormat returns a Format for rendering using a Context
func NewServiceFormat(source string) Format {
switch source {
case PrettyFormatKey:
return serviceInspectPrettyTemplate
default:
return Format(strings.TrimPrefix(source, RawFormatKey))
}
}
func resolveNetworks(service swarm.Service, getNetwork inspect.GetRefFunc) map[string]string {
networkNames := make(map[string]string)
for _, network := range service.Spec.TaskTemplate.Networks {
if resolved, _, err := getNetwork(network.Target); err == nil {
if resolvedNetwork, ok := resolved.(types.NetworkResource); ok {
networkNames[resolvedNetwork.ID] = resolvedNetwork.Name
}
}
}
return networkNames
}
// ServiceInspectWrite renders the context for a list of services
func ServiceInspectWrite(ctx Context, refs []string, getRef, getNetwork inspect.GetRefFunc) error {
if ctx.Format != serviceInspectPrettyTemplate {
return inspect.Inspect(ctx.Output, refs, string(ctx.Format), getRef)
}
render := func(format func(subContext subContext) error) error {
for _, ref := range refs {
serviceI, _, err := getRef(ref)
if err != nil {
return err
}
service, ok := serviceI.(swarm.Service)
if !ok {
return errors.Errorf("got wrong object to inspect")
}
if err := format(&serviceInspectContext{Service: service, networkNames: resolveNetworks(service, getNetwork)}); err != nil {
return err
}
}
return nil
}
return ctx.Write(&serviceInspectContext{}, render)
}
type serviceInspectContext struct {
swarm.Service
subContext
// networkNames is a map from network IDs (as found in
// Networks[x].Target) to network names.
networkNames map[string]string
}
func (ctx *serviceInspectContext) MarshalJSON() ([]byte, error) {
return marshalJSON(ctx)
}
func (ctx *serviceInspectContext) ID() string {
return ctx.Service.ID
}
func (ctx *serviceInspectContext) Name() string {
return ctx.Service.Spec.Name
}
func (ctx *serviceInspectContext) Labels() map[string]string {
return ctx.Service.Spec.Labels
}
func (ctx *serviceInspectContext) IsModeGlobal() bool {
return ctx.Service.Spec.Mode.Global != nil
}
func (ctx *serviceInspectContext) IsModeReplicated() bool {
return ctx.Service.Spec.Mode.Replicated != nil
}
func (ctx *serviceInspectContext) ModeReplicatedReplicas() *uint64 {
return ctx.Service.Spec.Mode.Replicated.Replicas
}
func (ctx *serviceInspectContext) HasUpdateStatus() bool {
return ctx.Service.UpdateStatus != nil && ctx.Service.UpdateStatus.State != ""
}
func (ctx *serviceInspectContext) UpdateStatusState() swarm.UpdateState {
return ctx.Service.UpdateStatus.State
}
func (ctx *serviceInspectContext) HasUpdateStatusStarted() bool {
return ctx.Service.UpdateStatus.StartedAt != nil
}
func (ctx *serviceInspectContext) UpdateStatusStarted() string {
return units.HumanDuration(time.Since(*ctx.Service.UpdateStatus.StartedAt)) + " ago"
}
func (ctx *serviceInspectContext) UpdateIsCompleted() bool {
return ctx.Service.UpdateStatus.State == swarm.UpdateStateCompleted && ctx.Service.UpdateStatus.CompletedAt != nil
}
func (ctx *serviceInspectContext) UpdateStatusCompleted() string {
return units.HumanDuration(time.Since(*ctx.Service.UpdateStatus.CompletedAt)) + " ago"
}
func (ctx *serviceInspectContext) UpdateStatusMessage() string {
return ctx.Service.UpdateStatus.Message
}
func (ctx *serviceInspectContext) TaskPlacementConstraints() []string {
if ctx.Service.Spec.TaskTemplate.Placement != nil {
return ctx.Service.Spec.TaskTemplate.Placement.Constraints
}
return nil
}
func (ctx *serviceInspectContext) TaskPlacementPreferences() []string {
if ctx.Service.Spec.TaskTemplate.Placement == nil {
return nil
}
var strings []string
for _, pref := range ctx.Service.Spec.TaskTemplate.Placement.Preferences {
if pref.Spread != nil {
strings = append(strings, "spread="+pref.Spread.SpreadDescriptor)
}
}
return strings
}
func (ctx *serviceInspectContext) HasUpdateConfig() bool {
return ctx.Service.Spec.UpdateConfig != nil
}
func (ctx *serviceInspectContext) UpdateParallelism() uint64 {
return ctx.Service.Spec.UpdateConfig.Parallelism
}
func (ctx *serviceInspectContext) HasUpdateDelay() bool {
return ctx.Service.Spec.UpdateConfig.Delay.Nanoseconds() > 0
}
func (ctx *serviceInspectContext) UpdateDelay() time.Duration {
return ctx.Service.Spec.UpdateConfig.Delay
}
func (ctx *serviceInspectContext) UpdateOnFailure() string {
return ctx.Service.Spec.UpdateConfig.FailureAction
}
func (ctx *serviceInspectContext) UpdateOrder() string {
return ctx.Service.Spec.UpdateConfig.Order
}
func (ctx *serviceInspectContext) HasUpdateMonitor() bool {
return ctx.Service.Spec.UpdateConfig.Monitor.Nanoseconds() > 0
}
func (ctx *serviceInspectContext) UpdateMonitor() time.Duration {
return ctx.Service.Spec.UpdateConfig.Monitor
}
func (ctx *serviceInspectContext) UpdateMaxFailureRatio() float32 {
return ctx.Service.Spec.UpdateConfig.MaxFailureRatio
}
func (ctx *serviceInspectContext) HasRollbackConfig() bool {
return ctx.Service.Spec.RollbackConfig != nil
}
func (ctx *serviceInspectContext) RollbackParallelism() uint64 {
return ctx.Service.Spec.RollbackConfig.Parallelism
}
func (ctx *serviceInspectContext) HasRollbackDelay() bool {
return ctx.Service.Spec.RollbackConfig.Delay.Nanoseconds() > 0
}
func (ctx *serviceInspectContext) RollbackDelay() time.Duration {
return ctx.Service.Spec.RollbackConfig.Delay
}
func (ctx *serviceInspectContext) RollbackOnFailure() string {
return ctx.Service.Spec.RollbackConfig.FailureAction
}
func (ctx *serviceInspectContext) HasRollbackMonitor() bool {
return ctx.Service.Spec.RollbackConfig.Monitor.Nanoseconds() > 0
}
func (ctx *serviceInspectContext) RollbackMonitor() time.Duration {
return ctx.Service.Spec.RollbackConfig.Monitor
}
func (ctx *serviceInspectContext) RollbackMaxFailureRatio() float32 {
return ctx.Service.Spec.RollbackConfig.MaxFailureRatio
}
func (ctx *serviceInspectContext) RollbackOrder() string {
return ctx.Service.Spec.RollbackConfig.Order
}
func (ctx *serviceInspectContext) ContainerImage() string {
return ctx.Service.Spec.TaskTemplate.ContainerSpec.Image
}
func (ctx *serviceInspectContext) ContainerArgs() []string {
return ctx.Service.Spec.TaskTemplate.ContainerSpec.Args
}
func (ctx *serviceInspectContext) ContainerEnv() []string {
return ctx.Service.Spec.TaskTemplate.ContainerSpec.Env
}
func (ctx *serviceInspectContext) ContainerWorkDir() string {
return ctx.Service.Spec.TaskTemplate.ContainerSpec.Dir
}
func (ctx *serviceInspectContext) ContainerUser() string {
return ctx.Service.Spec.TaskTemplate.ContainerSpec.User
}
func (ctx *serviceInspectContext) ContainerMounts() []mounttypes.Mount {
return ctx.Service.Spec.TaskTemplate.ContainerSpec.Mounts
}
func (ctx *serviceInspectContext) HasResources() bool {
return ctx.Service.Spec.TaskTemplate.Resources != nil
}
func (ctx *serviceInspectContext) HasResourceReservations() bool {
if ctx.Service.Spec.TaskTemplate.Resources == nil || ctx.Service.Spec.TaskTemplate.Resources.Reservations == nil {
return false
}
return ctx.Service.Spec.TaskTemplate.Resources.Reservations.NanoCPUs > 0 || ctx.Service.Spec.TaskTemplate.Resources.Reservations.MemoryBytes > 0
}
func (ctx *serviceInspectContext) ResourceReservationNanoCPUs() float64 {
if ctx.Service.Spec.TaskTemplate.Resources.Reservations.NanoCPUs == 0 {
return float64(0)
}
return float64(ctx.Service.Spec.TaskTemplate.Resources.Reservations.NanoCPUs) / 1e9
}
func (ctx *serviceInspectContext) ResourceReservationMemory() string {
if ctx.Service.Spec.TaskTemplate.Resources.Reservations.MemoryBytes == 0 {
return ""
}
return units.BytesSize(float64(ctx.Service.Spec.TaskTemplate.Resources.Reservations.MemoryBytes))
}
func (ctx *serviceInspectContext) HasResourceLimits() bool {
if ctx.Service.Spec.TaskTemplate.Resources == nil || ctx.Service.Spec.TaskTemplate.Resources.Limits == nil {
return false
}
return ctx.Service.Spec.TaskTemplate.Resources.Limits.NanoCPUs > 0 || ctx.Service.Spec.TaskTemplate.Resources.Limits.MemoryBytes > 0
}
func (ctx *serviceInspectContext) ResourceLimitsNanoCPUs() float64 {
return float64(ctx.Service.Spec.TaskTemplate.Resources.Limits.NanoCPUs) / 1e9
}
func (ctx *serviceInspectContext) ResourceLimitMemory() string {
if ctx.Service.Spec.TaskTemplate.Resources.Limits.MemoryBytes == 0 {
return ""
}
return units.BytesSize(float64(ctx.Service.Spec.TaskTemplate.Resources.Limits.MemoryBytes))
}
func (ctx *serviceInspectContext) Networks() []string {
var out []string
for _, n := range ctx.Service.Spec.TaskTemplate.Networks {
if name, ok := ctx.networkNames[n.Target]; ok {
out = append(out, name)
} else {
out = append(out, n.Target)
}
}
return out
}
func (ctx *serviceInspectContext) EndpointMode() string {
if ctx.Service.Spec.EndpointSpec == nil {
return ""
}
return string(ctx.Service.Spec.EndpointSpec.Mode)
}
func (ctx *serviceInspectContext) Ports() []swarm.PortConfig {
return ctx.Service.Endpoint.Ports
}
const (
defaultServiceTableFormat = "table {{.ID}}\t{{.Name}}\t{{.Mode}}\t{{.Replicas}}\t{{.Image}}\t{{.Ports}}"
serviceIDHeader = "ID"
modeHeader = "MODE"
replicasHeader = "REPLICAS"
)
// NewServiceListFormat returns a Format for rendering using a service Context
func NewServiceListFormat(source string, quiet bool) Format {
switch source {
case TableFormatKey:
if quiet {
return defaultQuietFormat
}
return defaultServiceTableFormat
case RawFormatKey:
if quiet {
return `id: {{.ID}}`
}
return `id: {{.ID}}\nname: {{.Name}}\nmode: {{.Mode}}\nreplicas: {{.Replicas}}\nimage: {{.Image}}\nports: {{.Ports}}\n`
}
return Format(source)
}
// ServiceListInfo stores the information about mode and replicas to be used by template
type ServiceListInfo struct {
Mode string
Replicas string
}
// ServiceListWrite writes the context
func ServiceListWrite(ctx Context, services []swarm.Service, info map[string]ServiceListInfo) error {
render := func(format func(subContext subContext) error) error {
for _, service := range services {
serviceCtx := &serviceContext{service: service, mode: info[service.ID].Mode, replicas: info[service.ID].Replicas}
if err := format(serviceCtx); err != nil {
return err
}
}
return nil
}
serviceCtx := serviceContext{}
serviceCtx.header = map[string]string{
"ID": serviceIDHeader,
"Name": nameHeader,
"Mode": modeHeader,
"Replicas": replicasHeader,
"Image": imageHeader,
"Ports": portsHeader,
}
return ctx.Write(&serviceCtx, render)
}
type serviceContext struct {
HeaderContext
service swarm.Service
mode string
replicas string
}
func (c *serviceContext) MarshalJSON() ([]byte, error) {
return marshalJSON(c)
}
func (c *serviceContext) ID() string {
return stringid.TruncateID(c.service.ID)
}
func (c *serviceContext) Name() string {
return c.service.Spec.Name
}
func (c *serviceContext) Mode() string {
return c.mode
}
func (c *serviceContext) Replicas() string {
return c.replicas
}
func (c *serviceContext) Image() string {
image := c.service.Spec.TaskTemplate.ContainerSpec.Image
if ref, err := reference.ParseNormalizedNamed(image); err == nil {
// update image string for display, (strips any digest)
if nt, ok := ref.(reference.NamedTagged); ok {
if namedTagged, err := reference.WithTag(reference.TrimNamed(nt), nt.Tag()); err == nil {
image = reference.FamiliarString(namedTagged)
}
}
}
return image
}
func (c *serviceContext) Ports() string {
if c.service.Endpoint.Ports == nil {
return ""
}
ports := []string{}
for _, pConfig := range c.service.Endpoint.Ports {
if pConfig.PublishMode == swarm.PortConfigPublishModeIngress {
ports = append(ports, fmt.Sprintf("*:%d->%d/%s",
pConfig.PublishedPort,
pConfig.TargetPort,
pConfig.Protocol,
))
}
}
return strings.Join(ports, ",")
}