Files
moby/client
Sebastiaan van Stijn a5c0f152a7 daemon: improve validation for container rename
Improve validation for empty name; while the daemon already handled empty
strings, it didn't account for the "canonical" name with "/" prefix, for
which it would produce an obscure error:

    Error response from daemon: Error when allocating new name: Invalid container name (/ ), only [a-zA-Z0-9][a-zA-Z0-9_.-] are allowed

Before this change:

    curl -XPOST --unix-socket /var/run/docker.sock 'http://localhost/v1.51/containers/old/rename?name='
    {"message":"Neither old nor new names may be empty"}

    curl -XPOST --unix-socket /var/run/docker.sock 'http://localhost/v1.51/containers/old/rename?name=/'
    {"message":"Error when allocating new name: Invalid container name (/), only [a-zA-Z0-9][a-zA-Z0-9_.-] are allowed"}

    curl -XPOST --unix-socket /var/run/docker.sock 'http://localhost/v1.51/containers/old/rename?name=/hello'
    # OK

A check was added in the client as well for situations where an older daemon
is used; the same code currently was implemented in the CLI.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2025-10-29 18:42:36 +01:00
..
2025-10-16 14:43:43 +02:00
2016-09-07 11:05:58 -07:00
2025-07-21 09:30:05 -07:00
2025-08-02 17:12:05 +02:00
2025-10-10 13:24:40 +02:00
2025-10-22 14:01:01 +02:00
2025-10-08 12:06:31 -04:00
2025-10-08 13:44:39 +02:00

Go client for the Docker Engine API

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The docker command uses this package to communicate with the daemon. It can also be used by your own Go applications to do anything the command-line interface does; running containers, pulling or pushing images, etc.

For example, to list all containers (the equivalent of docker ps --all):

package main

import (
	"context"
	"fmt"

	"github.com/moby/moby/client"
)

func main() {
	apiClient, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
	if err != nil {
		panic(err)
	}
	defer apiClient.Close()

	containers, err := apiClient.ContainerList(context.Background(), client.ContainerListOptions{All: true})
	if err != nil {
		panic(err)
	}

	for _, ctr := range containers {
		fmt.Printf("%s %s (status: %s)\n", ctr.ID, ctr.Image, ctr.Status)
	}
}

Full documentation is available on pkg.go.dev.