mirror of
https://github.com/docker/compose.git
synced 2025-11-04 13:44:48 +01:00
133 lines
3.2 KiB
Go
133 lines
3.2 KiB
Go
/*
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Copyright 2020 Docker Compose CLI authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cmd
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import (
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"context"
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"fmt"
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"io"
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"os"
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"strings"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"github.com/docker/compose-cli/api/client"
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"github.com/docker/compose-cli/api/containers"
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formatter2 "github.com/docker/compose-cli/cli/formatter"
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"github.com/docker/compose-cli/utils/formatter"
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)
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type psOpts struct {
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all bool
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quiet bool
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json bool
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format string
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}
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// PsCommand lists containers
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func PsCommand() *cobra.Command {
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var opts psOpts
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cmd := &cobra.Command{
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Use: "ps",
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Short: "List containers",
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RunE: func(cmd *cobra.Command, args []string) error {
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return runPs(cmd.Context(), opts)
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},
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}
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cmd.Flags().BoolVarP(&opts.quiet, "quiet", "q", false, "Only display IDs")
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cmd.Flags().BoolVarP(&opts.all, "all", "a", false, "Show all containers (default shows just running)")
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cmd.Flags().BoolVar(&opts.json, "json", false, "Format output as JSON")
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cmd.Flags().StringVar(&opts.format, "format", "", "Format the output. Values: [pretty | json]. (Default: pretty)")
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_ = cmd.Flags().MarkHidden("json") // Legacy. This is used by VSCode Docker extension
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return cmd
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}
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func (o psOpts) validate() error {
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if o.quiet && o.json {
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return errors.New(`cannot combine "quiet" and "json" options`)
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}
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return nil
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}
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func runPs(ctx context.Context, opts psOpts) error {
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err := opts.validate()
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if err != nil {
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return err
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}
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c, err := client.New(ctx)
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if err != nil {
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return errors.Wrap(err, "cannot connect to backend")
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}
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containerList, err := c.ContainerService().List(ctx, opts.all)
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if err != nil {
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return errors.Wrap(err, "fetch containers")
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}
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if opts.quiet {
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for _, c := range containerList {
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fmt.Println(c.ID)
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}
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return nil
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}
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if opts.json {
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opts.format = formatter2.JSON
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}
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view := viewFromContainerList(containerList)
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return formatter2.Print(view, opts.format, os.Stdout, func(w io.Writer) {
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for _, c := range view {
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_, _ = fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\n", c.ID, c.Image, c.Command, c.Status,
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strings.Join(c.Ports, ", "))
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}
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}, "CONTAINER ID", "IMAGE", "COMMAND", "STATUS", "PORTS")
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}
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func fqdn(container containers.Container) string {
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fqdn := ""
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if container.Config != nil {
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fqdn = container.Config.FQDN
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}
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return fqdn
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}
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type containerView struct {
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ID string
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Image string
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Status string
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Command string
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Ports []string
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}
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func viewFromContainerList(containerList []containers.Container) []containerView {
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retList := make([]containerView, len(containerList))
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for i, c := range containerList {
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retList[i] = containerView{
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ID: c.ID,
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Image: c.Image,
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Status: c.Status,
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Command: c.Command,
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Ports: formatter.PortsToStrings(c.Ports, fqdn(c)),
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}
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}
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return retList
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}
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