Docker Control

A command line utility for controlling Docker for Mac and Windows.

Motivation

The utility was created due to a limitation in Docker for Windows which prevents users from controlling the Docker service from the command line when running Linux containers.

Table of contents

1. Requirements
2. Installation
3. Usage
4. Commands
5. Configuration
   1. Common
   2. Windows
6. License

Requirements

• Docker for Mac 17.12 or greater
• Docker for Windows 17.09 or greater

Installation

1. Clone or download the repository
2. Determine the absolute path to the bin directory which contains the binary for your operating system
3. Add the path to your system's PATH variable.

Usage

The utility has a simple set of commands which are invoked like this:

docker-control <command>

See a list of commands below.

Commands

config

The config command has a simple getter/setter interface. You can retrieve a value by invoking the following command:

docker-control config get <name>

Setting a value is just as easy:

docker-control config set <name> <value>

You can also retrieve and set multiple values with a single invocation of the commands:

docker-control config get <name> <name> ...
docker-control config set <name> <value> <name> <value> ...

See the Configuration section for a list of supported configuration values.

Note: Changes to configuration values will first take effect once the Docker service is restarted. This command will not trigger a restart as users may wish to delay this action.

reset

The reset command resets the configuration values and triggers a restart of the Docker service.

restart

The restart command restarts the Docker service.

start

The start command starts the Docker service.

stop

The stop command stops the Docker service.

version

The version command prints a version string. The command can also be invoked by using the aliases -v or --version.

Configuration

While some values are supported by both Docker for Mac and Windows, others are supported by only one of the systems. Trying to specify a system specific value on the wrong system will result in an error.

• Common
• Windows

Common

advanced.disk_image

The absolute path to the disk image for the virtual machine.

advanced.memory

The amount of memory (in megabytes) to allocate for the virtual machine.

advanced.processors

The number of processors to allocate for the virtual machine.

general.autostart

Whether to start Docker when a user logs in.

general.autoupdate

Whether to automatically update Docker when a new version is released.

general.tracking

Whether to allow anonymous usage data to be sent to the Docker team.

network.subnet_address

The subnet address for the virtual network.

proxies.excluded_hostnames

A comma separated list of hostnames which should bypass the proxy servers.

proxies.insecure_server

The URL for an insecure proxy server (HTTP).

proxies.secure_server

The URL for a secure proxy server (HTTPS).

proxies.use_proxy

Whether to use custom proxy servers when pulling images.

sharing.directories

A comma separated list of directory paths, which will be used for host mapped volumes.

Note: You can only share root directories on Windows i.e. C:\. You must also run the utility in an elevated command prompt (Run as administrator).

Windows

general.expose_daemon

Whether to expose an insecure TCP socket for the Docker daemon.

network.dns_forwarding

Whether to use DNS forwarding.

network.dns_server

The IP address of the primary DNS server.

network.subnet_mask_size

The subnet mask size for the virtual network.

sharing.credentials

The username and password to use when accessing the shared directories.

Note: The value must be specified as username:password or computername\username:password. The username will be prefixed with the current computer name, if the former format is used.

License

See the LICENSE file.