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Anca Iordache 427c7cc5f8
Add http(s) proxy properties to daemon configuration
This allows configuring the daemon's proxy server through the daemon.json con-
figuration file or command-line flags configuration file, in addition to the
existing option (through environment variables).

Configuring environment variables on Windows to configure a service is more
complicated than on Linux, and adding alternatives for this to the daemon con-
figuration makes the configuration more transparent and easier to use.

The configuration as set through command-line flags or through the daemon.json
configuration file takes precedence over env-vars in the daemon's environment,
which allows the daemon to use a different proxy. If both command-line flags
and a daemon.json configuration option is set, an error is produced when starting
the daemon.

Note that this configuration is not "live reloadable" due to Golang's use of
`sync.Once()` for proxy configuration, which means that changing the proxy
configuration requires a restart of the daemon (reload / SIGHUP will not update
the configuration.

With this patch:

    cat /etc/docker/daemon.json
    {
        "http-proxy": "http://proxytest.example.com:80",
        "https-proxy": "https://proxytest.example.com:443"
    }

    docker pull busybox
    Using default tag: latest
    Error response from daemon: Get "https://registry-1.docker.io/v2/": proxyconnect tcp: dial tcp: lookup proxytest.example.com on 127.0.0.11:53: no such host

    docker build .
    Sending build context to Docker daemon  89.28MB
    Step 1/3 : FROM golang:1.16-alpine AS base
    Get "https://registry-1.docker.io/v2/": proxyconnect tcp: dial tcp: lookup proxytest.example.com on 127.0.0.11:53: no such host

Integration tests were added to test the behavior:

- verify that the configuration through all means are used (env-var,
  command-line flags, damon.json), and used in the expected order of
  preference.
- verify that conflicting options produce an error.

Signed-off-by: Anca Iordache <anca.iordache@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-10-27 12:38:59 +02:00
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quota refactor: move from io/ioutil to io and os package 2021-08-27 14:56:57 +08:00
reference refactor: move from io/ioutil to io and os package 2021-08-27 14:56:57 +08:00
registry Merge pull request #42915 from thaJeztah/registry_cleanup 2021-10-15 10:01:22 +02:00
reports
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rootless refactor: move from io/ioutil to io and os package 2021-08-27 14:56:57 +08:00
runconfig refactor: move from io/ioutil to io and os package 2021-08-27 14:56:57 +08:00
testutil Port testutil/daemon to FreeBSD 2021-10-16 09:51:55 +03:00
vendor Merge pull request #42933 from thaJeztah/limit_caps_to_environment 2021-10-20 09:55:08 +02:00
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.DEREK.yml
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CONTRIBUTING.md
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NOTICE
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README.md

The Moby Project

Moby Project logo

Moby is an open-source project created by Docker to enable and accelerate software containerization.

It provides a "Lego set" of toolkit components, the framework for assembling them into custom container-based systems, and a place for all container enthusiasts and professionals to experiment and exchange ideas. Components include container build tools, a container registry, orchestration tools, a runtime and more, and these can be used as building blocks in conjunction with other tools and projects.

Principles

Moby is an open project guided by strong principles, aiming to be modular, flexible and without too strong an opinion on user experience. It is open to the community to help set its direction.

  • Modular: the project includes lots of components that have well-defined functions and APIs that work together.
  • Batteries included but swappable: Moby includes enough components to build fully featured container system, but its modular architecture ensures that most of the components can be swapped by different implementations.
  • Usable security: Moby provides secure defaults without compromising usability.
  • Developer focused: The APIs are intended to be functional and useful to build powerful tools. They are not necessarily intended as end user tools but as components aimed at developers. Documentation and UX is aimed at developers not end users.

Audience

The Moby Project is intended for engineers, integrators and enthusiasts looking to modify, hack, fix, experiment, invent and build systems based on containers. It is not for people looking for a commercially supported system, but for people who want to work and learn with open source code.

Relationship with Docker

The components and tools in the Moby Project are initially the open source components that Docker and the community have built for the Docker Project. New projects can be added if they fit with the community goals. Docker is committed to using Moby as the upstream for the Docker Product. However, other projects are also encouraged to use Moby as an upstream, and to reuse the components in diverse ways, and all these uses will be treated in the same way. External maintainers and contributors are welcomed.

The Moby project is not intended as a location for support or feature requests for Docker products, but as a place for contributors to work on open source code, fix bugs, and make the code more useful. The releases are supported by the maintainers, community and users, on a best efforts basis only, and are not intended for customers who want enterprise or commercial support; Docker EE is the appropriate product for these use cases.


Legal

Brought to you courtesy of our legal counsel. For more context, please see the NOTICE document in this repo.

Use and transfer of Moby may be subject to certain restrictions by the United States and other governments.

It is your responsibility to ensure that your use and/or transfer does not violate applicable laws.

For more information, please see https://www.bis.doc.gov

Licensing

Moby is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.