mirror of https://github.com/docker/cli.git
Merge pull request #28199 from yongtang/11062016-service-ls-format
Add `--format` to `docker service ls`
This commit is contained in:
Vincent Demeester
GitHub
commit
16c1a50ddf
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@ -5,9 +5,11 @@ import (
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"strings"
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"time"
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distreference "github.com/docker/distribution/reference"
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mounttypes "github.com/docker/docker/api/types/mount"
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"github.com/docker/docker/api/types/swarm"
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"github.com/docker/docker/cli/command/inspect"
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"github.com/docker/docker/pkg/stringid"
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units "github.com/docker/go-units"
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)
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@ -327,3 +329,93 @@ func (ctx *serviceInspectContext) EndpointMode() string {
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func (ctx *serviceInspectContext) Ports() []swarm.PortConfig {
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return ctx.Service.Endpoint.Ports
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}
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const (
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defaultServiceTableFormat = "table {{.ID}}\t{{.Name}}\t{{.Mode}}\t{{.Replicas}}\t{{.Image}}"
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serviceIDHeader = "ID"
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modeHeader = "MODE"
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replicasHeader = "REPLICAS"
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)
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// NewServiceListFormat returns a Format for rendering using a service Context
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func NewServiceListFormat(source string, quiet bool) Format {
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switch source {
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case TableFormatKey:
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if quiet {
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return defaultQuietFormat
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}
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return defaultServiceTableFormat
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case RawFormatKey:
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if quiet {
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return `id: {{.ID}}`
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}
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return `id: {{.ID}}\nname: {{.Name}}\nmode: {{.Mode}}\nreplicas: {{.Replicas}}\nimage: {{.Image}}\n`
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}
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return Format(source)
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}
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// ServiceListInfo stores the information about mode and replicas to be used by template
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type ServiceListInfo struct {
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Mode string
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Replicas string
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}
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// ServiceListWrite writes the context
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func ServiceListWrite(ctx Context, services []swarm.Service, info map[string]ServiceListInfo) error {
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render := func(format func(subContext subContext) error) error {
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for _, service := range services {
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serviceCtx := &serviceContext{service: service, mode: info[service.ID].Mode, replicas: info[service.ID].Replicas}
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if err := format(serviceCtx); err != nil {
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return err
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}
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}
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return nil
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}
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return ctx.Write(&serviceContext{}, render)
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}
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type serviceContext struct {
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HeaderContext
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service swarm.Service
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mode string
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replicas string
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}
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func (c *serviceContext) MarshalJSON() ([]byte, error) {
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return marshalJSON(c)
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}
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func (c *serviceContext) ID() string {
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c.AddHeader(serviceIDHeader)
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return stringid.TruncateID(c.service.ID)
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}
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func (c *serviceContext) Name() string {
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c.AddHeader(nameHeader)
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return c.service.Spec.Name
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}
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func (c *serviceContext) Mode() string {
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c.AddHeader(modeHeader)
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return c.mode
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}
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func (c *serviceContext) Replicas() string {
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c.AddHeader(replicasHeader)
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return c.replicas
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}
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func (c *serviceContext) Image() string {
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c.AddHeader(imageHeader)
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image := c.service.Spec.TaskTemplate.ContainerSpec.Image
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if ref, err := distreference.ParseNamed(image); err == nil {
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// update image string for display
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namedTagged, ok := ref.(distreference.NamedTagged)
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if ok {
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image = namedTagged.Name() + ":" + namedTagged.Tag()
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}
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}
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return image
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}
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@ -0,0 +1,177 @@
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package formatter
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import (
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"bytes"
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"encoding/json"
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"strings"
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"testing"
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"github.com/docker/docker/api/types/swarm"
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"github.com/docker/docker/pkg/testutil/assert"
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)
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func TestServiceContextWrite(t *testing.T) {
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cases := []struct {
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context Context
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expected string
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}{
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// Errors
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{
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Context{Format: "{{InvalidFunction}}"},
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`Template parsing error: template: :1: function "InvalidFunction" not defined
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`,
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},
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{
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Context{Format: "{{nil}}"},
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`Template parsing error: template: :1:2: executing "" at <nil>: nil is not a command
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`,
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},
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// Table format
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{
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Context{Format: NewServiceListFormat("table", false)},
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`ID NAME MODE REPLICAS IMAGE
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id_baz baz global 2/4
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id_bar bar replicated 2/4
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`,
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},
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{
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Context{Format: NewServiceListFormat("table", true)},
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`id_baz
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id_bar
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`,
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},
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{
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Context{Format: NewServiceListFormat("table {{.Name}}", false)},
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`NAME
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baz
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bar
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`,
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},
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{
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Context{Format: NewServiceListFormat("table {{.Name}}", true)},
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`NAME
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baz
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bar
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`,
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},
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// Raw Format
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{
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Context{Format: NewServiceListFormat("raw", false)},
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`id: id_baz
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name: baz
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mode: global
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replicas: 2/4
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image:
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id: id_bar
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name: bar
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mode: replicated
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replicas: 2/4
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image:
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`,
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},
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{
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Context{Format: NewServiceListFormat("raw", true)},
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`id: id_baz
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id: id_bar
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`,
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},
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// Custom Format
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{
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Context{Format: NewServiceListFormat("{{.Name}}", false)},
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`baz
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bar
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`,
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},
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}
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for _, testcase := range cases {
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services := []swarm.Service{
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{ID: "id_baz", Spec: swarm.ServiceSpec{Annotations: swarm.Annotations{Name: "baz"}}},
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{ID: "id_bar", Spec: swarm.ServiceSpec{Annotations: swarm.Annotations{Name: "bar"}}},
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}
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info := map[string]ServiceListInfo{
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"id_baz": {
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Mode: "global",
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Replicas: "2/4",
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},
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"id_bar": {
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Mode: "replicated",
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Replicas: "2/4",
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},
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}
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out := bytes.NewBufferString("")
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testcase.context.Output = out
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err := ServiceListWrite(testcase.context, services, info)
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if err != nil {
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assert.Error(t, err, testcase.expected)
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} else {
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assert.Equal(t, out.String(), testcase.expected)
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}
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}
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}
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func TestServiceContextWriteJSON(t *testing.T) {
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services := []swarm.Service{
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{ID: "id_baz", Spec: swarm.ServiceSpec{Annotations: swarm.Annotations{Name: "baz"}}},
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{ID: "id_bar", Spec: swarm.ServiceSpec{Annotations: swarm.Annotations{Name: "bar"}}},
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}
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info := map[string]ServiceListInfo{
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"id_baz": {
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Mode: "global",
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Replicas: "2/4",
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},
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"id_bar": {
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Mode: "replicated",
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Replicas: "2/4",
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},
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}
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expectedJSONs := []map[string]interface{}{
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{"ID": "id_baz", "Name": "baz", "Mode": "global", "Replicas": "2/4", "Image": ""},
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{"ID": "id_bar", "Name": "bar", "Mode": "replicated", "Replicas": "2/4", "Image": ""},
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}
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out := bytes.NewBufferString("")
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err := ServiceListWrite(Context{Format: "{{json .}}", Output: out}, services, info)
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if err != nil {
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t.Fatal(err)
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}
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for i, line := range strings.Split(strings.TrimSpace(out.String()), "\n") {
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t.Logf("Output: line %d: %s", i, line)
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var m map[string]interface{}
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if err := json.Unmarshal([]byte(line), &m); err != nil {
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t.Fatal(err)
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}
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assert.DeepEqual(t, m, expectedJSONs[i])
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}
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}
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func TestServiceContextWriteJSONField(t *testing.T) {
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services := []swarm.Service{
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{ID: "id_baz", Spec: swarm.ServiceSpec{Annotations: swarm.Annotations{Name: "baz"}}},
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{ID: "id_bar", Spec: swarm.ServiceSpec{Annotations: swarm.Annotations{Name: "bar"}}},
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}
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info := map[string]ServiceListInfo{
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"id_baz": {
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Mode: "global",
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Replicas: "2/4",
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},
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"id_bar": {
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Mode: "replicated",
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Replicas: "2/4",
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},
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}
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out := bytes.NewBufferString("")
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err := ServiceListWrite(Context{Format: "{{json .Name}}", Output: out}, services, info)
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if err != nil {
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t.Fatal(err)
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}
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for i, line := range strings.Split(strings.TrimSpace(out.String()), "\n") {
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t.Logf("Output: line %d: %s", i, line)
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var s string
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if err := json.Unmarshal([]byte(line), &s); err != nil {
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t.Fatal(err)
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}
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assert.Equal(t, s, services[i].Spec.Name)
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}
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}
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@ -2,27 +2,21 @@ package service
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import (
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"fmt"
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"io"
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"text/tabwriter"
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distreference "github.com/docker/distribution/reference"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/filters"
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"github.com/docker/docker/api/types/swarm"
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"github.com/docker/docker/cli"
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"github.com/docker/docker/cli/command"
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"github.com/docker/docker/cli/command/formatter"
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"github.com/docker/docker/opts"
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"github.com/docker/docker/pkg/stringid"
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"github.com/spf13/cobra"
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"golang.org/x/net/context"
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)
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const (
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listItemFmt = "%s\t%s\t%s\t%s\t%s\n"
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)
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type listOptions struct {
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quiet bool
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format string
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filter opts.FilterOpt
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}
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@ -41,6 +35,7 @@ func newListCommand(dockerCli *command.DockerCli) *cobra.Command {
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flags := cmd.Flags()
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flags.BoolVarP(&opts.quiet, "quiet", "q", false, "Only display IDs")
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flags.StringVar(&opts.format, "format", "", "Pretty-print services using a Go template")
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flags.VarP(&opts.filter, "filter", "f", "Filter output based on conditions provided")
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return cmd
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@ -49,13 +44,13 @@ func newListCommand(dockerCli *command.DockerCli) *cobra.Command {
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func runList(dockerCli *command.DockerCli, opts listOptions) error {
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ctx := context.Background()
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client := dockerCli.Client()
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out := dockerCli.Out()
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services, err := client.ServiceList(ctx, types.ServiceListOptions{Filters: opts.filter.Value()})
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if err != nil {
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return err
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}
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info := map[string]formatter.ServiceListInfo{}
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if len(services) > 0 && !opts.quiet {
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// only non-empty services and not quiet, should we call TaskList and NodeList api
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taskFilter := filters.NewArgs()
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@ -73,20 +68,30 @@ func runList(dockerCli *command.DockerCli, opts listOptions) error {
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return err
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}
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PrintNotQuiet(out, services, nodes, tasks)
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} else if !opts.quiet {
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// no services and not quiet, print only one line with columns ID, NAME, MODE, REPLICAS...
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PrintNotQuiet(out, services, []swarm.Node{}, []swarm.Task{})
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info = GetServicesStatus(services, nodes, tasks)
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}
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format := opts.format
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if len(format) == 0 {
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if len(dockerCli.ConfigFile().ServicesFormat) > 0 && !opts.quiet {
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format = dockerCli.ConfigFile().ServicesFormat
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} else {
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PrintQuiet(out, services)
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format = formatter.TableFormatKey
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}
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}
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return nil
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servicesCtx := formatter.Context{
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Output: dockerCli.Out(),
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Format: formatter.NewServiceListFormat(format, opts.quiet),
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}
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return formatter.ServiceListWrite(servicesCtx, services, info)
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}
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// PrintNotQuiet shows service list in a non-quiet way.
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// Besides this, command `docker stack services xxx` will call this, too.
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func PrintNotQuiet(out io.Writer, services []swarm.Service, nodes []swarm.Node, tasks []swarm.Task) {
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// GetServicesStatus returns a map of mode and replicas
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func GetServicesStatus(services []swarm.Service, nodes []swarm.Node, tasks []swarm.Task) map[string]formatter.ServiceListInfo {
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running := map[string]int{}
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tasksNoShutdown := map[string]int{}
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activeNodes := make(map[string]struct{})
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for _, n := range nodes {
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if n.Status.State != swarm.NodeStateDown {
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|
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@ -94,9 +99,6 @@ func PrintNotQuiet(out io.Writer, services []swarm.Service, nodes []swarm.Node,
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}
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}
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running := map[string]int{}
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tasksNoShutdown := map[string]int{}
|
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|
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for _, task := range tasks {
|
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if task.DesiredState != swarm.TaskStateShutdown {
|
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tasksNoShutdown[task.ServiceID]++
|
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|
|
@ -107,52 +109,20 @@ func PrintNotQuiet(out io.Writer, services []swarm.Service, nodes []swarm.Node,
|
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}
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}
|
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|
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printTable(out, services, running, tasksNoShutdown)
|
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}
|
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|
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func printTable(out io.Writer, services []swarm.Service, running, tasksNoShutdown map[string]int) {
|
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writer := tabwriter.NewWriter(out, 0, 4, 2, ' ', 0)
|
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|
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// Ignore flushing errors
|
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defer writer.Flush()
|
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|
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fmt.Fprintf(writer, listItemFmt, "ID", "NAME", "MODE", "REPLICAS", "IMAGE")
|
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|
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info := map[string]formatter.ServiceListInfo{}
|
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for _, service := range services {
|
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mode := ""
|
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replicas := ""
|
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info[service.ID] = formatter.ServiceListInfo{}
|
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if service.Spec.Mode.Replicated != nil && service.Spec.Mode.Replicated.Replicas != nil {
|
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mode = "replicated"
|
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replicas = fmt.Sprintf("%d/%d", running[service.ID], *service.Spec.Mode.Replicated.Replicas)
|
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info[service.ID] = formatter.ServiceListInfo{
|
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Mode: "replicated",
|
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Replicas: fmt.Sprintf("%d/%d", running[service.ID], *service.Spec.Mode.Replicated.Replicas),
|
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}
|
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} else if service.Spec.Mode.Global != nil {
|
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mode = "global"
|
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replicas = fmt.Sprintf("%d/%d", running[service.ID], tasksNoShutdown[service.ID])
|
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}
|
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image := service.Spec.TaskTemplate.ContainerSpec.Image
|
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ref, err := distreference.ParseNamed(image)
|
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if err == nil {
|
||||
// update image string for display
|
||||
namedTagged, ok := ref.(distreference.NamedTagged)
|
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if ok {
|
||||
image = namedTagged.Name() + ":" + namedTagged.Tag()
|
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info[service.ID] = formatter.ServiceListInfo{
|
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Mode: "global",
|
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Replicas: fmt.Sprintf("%d/%d", running[service.ID], tasksNoShutdown[service.ID]),
|
||||
}
|
||||
}
|
||||
|
||||
fmt.Fprintf(
|
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writer,
|
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listItemFmt,
|
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stringid.TruncateID(service.ID),
|
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service.Spec.Name,
|
||||
mode,
|
||||
replicas,
|
||||
image)
|
||||
}
|
||||
}
|
||||
|
||||
// PrintQuiet shows service list in a quiet way.
|
||||
// Besides this, command `docker stack services xxx` will call this, too.
|
||||
func PrintQuiet(out io.Writer, services []swarm.Service) {
|
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for _, service := range services {
|
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fmt.Fprintln(out, service.ID)
|
||||
}
|
||||
return info
|
||||
}
|
||||
|
|
|
|||
|
|
@ -9,6 +9,7 @@ import (
|
|||
"github.com/docker/docker/api/types/filters"
|
||||
"github.com/docker/docker/cli"
|
||||
"github.com/docker/docker/cli/command"
|
||||
"github.com/docker/docker/cli/command/formatter"
|
||||
"github.com/docker/docker/cli/command/service"
|
||||
"github.com/docker/docker/opts"
|
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"github.com/spf13/cobra"
|
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|
|
@ -16,6 +17,7 @@ import (
|
|||
|
||||
type servicesOptions struct {
|
||||
quiet bool
|
||||
format string
|
||||
filter opts.FilterOpt
|
||||
namespace string
|
||||
}
|
||||
|
|
@ -34,6 +36,7 @@ func newServicesCommand(dockerCli *command.DockerCli) *cobra.Command {
|
|||
}
|
||||
flags := cmd.Flags()
|
||||
flags.BoolVarP(&opts.quiet, "quiet", "q", false, "Only display IDs")
|
||||
flags.StringVar(&opts.format, "format", "", "Pretty-print services using a Go template")
|
||||
flags.VarP(&opts.filter, "filter", "f", "Filter output based on conditions provided")
|
||||
|
||||
return cmd
|
||||
|
|
@ -57,9 +60,8 @@ func runServices(dockerCli *command.DockerCli, opts servicesOptions) error {
|
|||
return nil
|
||||
}
|
||||
|
||||
if opts.quiet {
|
||||
service.PrintQuiet(out, services)
|
||||
} else {
|
||||
info := map[string]formatter.ServiceListInfo{}
|
||||
if !opts.quiet {
|
||||
taskFilter := filters.NewArgs()
|
||||
for _, service := range services {
|
||||
taskFilter.Add("service", service.ID)
|
||||
|
|
@ -69,11 +71,27 @@ func runServices(dockerCli *command.DockerCli, opts servicesOptions) error {
|
|||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
nodes, err := client.NodeList(ctx, types.NodeListOptions{})
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
service.PrintNotQuiet(out, services, nodes, tasks)
|
||||
|
||||
info = service.GetServicesStatus(services, nodes, tasks)
|
||||
}
|
||||
return nil
|
||||
|
||||
format := opts.format
|
||||
if len(format) == 0 {
|
||||
if len(dockerCli.ConfigFile().ServicesFormat) > 0 && !opts.quiet {
|
||||
format = dockerCli.ConfigFile().ServicesFormat
|
||||
} else {
|
||||
format = formatter.TableFormatKey
|
||||
}
|
||||
}
|
||||
|
||||
servicesCtx := formatter.Context{
|
||||
Output: dockerCli.Out(),
|
||||
Format: formatter.NewServiceListFormat(format, opts.quiet),
|
||||
}
|
||||
return formatter.ServiceListWrite(servicesCtx, services, info)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -35,6 +35,7 @@ type ConfigFile struct {
|
|||
CredentialHelpers map[string]string `json:"credHelpers,omitempty"`
|
||||
Filename string `json:"-"` // Note: for internal use only
|
||||
ServiceInspectFormat string `json:"serviceInspectFormat,omitempty"`
|
||||
ServicesFormat string `json:"servicesFormat,omitempty"`
|
||||
}
|
||||
|
||||
// LegacyLoadFromReader reads the non-nested configuration data given and sets up the
|
||||
|
|
|
|||
Loading…
Reference in New Issue