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Moby Project - a collaborative project for the container ecosystem to assemble container-based systems
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Akihiro Suda 3518383ed9 dockerd: fix rootless detection (alternative to #39024)
The `--rootless` flag had a couple of issues:
* #38702: euid=0, $USER="root" but no access to cgroup ("rootful" Docker in rootless Docker)
* #39009: euid=0 but $USER="docker" (rootful boot2docker)

To fix #38702, XDG dirs are ignored as in rootful Docker, unless the
dockerd is directly running under RootlessKit namespaces.

RootlessKit detection is implemented by checking whether `$ROOTLESSKIT_STATE_DIR` is set.

To fix #39009, the non-robust `$USER` check is now completely removed.

The entire logic can be illustrated as follows:

```
withRootlessKit := getenv("ROOTLESSKIT_STATE_DIR")
rootlessMode := withRootlessKit || cliFlag("--rootless")
honorXDG := withRootlessKit
useRootlessKitDockerProxy := withRootlessKit
removeCgroupSpec := rootlessMode
adjustOOMScoreAdj := rootlessMode
```

Close #39024
Fix #38702 #39009

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
2019-04-25 16:47:01 +09:00
.github Remove myself from codeowners 😅 2019-01-10 17:32:26 +01:00
api Update container name pattern in swagger.yaml 2019-04-15 16:41:46 +07:00
builder vendor: update buildkit to 8818c67c 2019-04-23 19:02:06 -07:00
cli allow running dockerd in an unprivileged user namespace (rootless mode) 2019-02-04 00:24:27 +09:00
client Merge pull request #39032 from thaJeztah/improve_version_negotiation 2019-04-20 13:34:22 +02:00
cmd/dockerd dockerd: fix rootless detection (alternative to #39024) 2019-04-25 16:47:01 +09:00
container Move EnableServiceDiscoveryOnDefaultNetwork to container-operations 2019-03-20 18:45:20 +01:00
contrib Merge pull request #39000 from mrueg/openrc-set 2019-04-05 19:51:37 +02:00
daemon I can lose a screw if its on too loose 2019-04-23 11:36:31 +10:00
distribution *: remove interfacer linter from CI 2019-03-13 11:48:39 +11:00
dockerversion Remove version-checks for containerd and runc 2018-10-04 23:17:13 +02:00
docs dockerd: fix rootless detection (alternative to #39024) 2019-04-25 16:47:01 +09:00
errdefs errdefs: remove "ErrAlreadyExists" because it's not an error 2019-03-21 21:25:15 +00:00
hack Merge pull request #39129 from thaJeztah/bump_libnetwork 2019-04-23 23:27:07 +02:00
image Merge pull request #38888 from quasilyte/fix_copying 2019-03-21 01:48:27 +01:00
integration Merge pull request #38990 from tiborvass/http-grpc 2019-04-02 18:13:13 -07:00
integration-cli Use current windows servercore image 2019-04-17 15:24:23 +02:00
internal client: define "Opt" type 2019-04-10 01:23:45 +02:00
layer layer/layer_store: ensure NewInputTarStream resources are released 2018-12-21 09:30:09 +01:00
libcontainerd Remove inmemory container map 2019-04-05 15:48:07 -04:00
oci Capabilities refactor 2019-01-22 21:50:41 +02:00
opts dockerd: fix rootless detection (alternative to #39024) 2019-04-25 16:47:01 +09:00
pkg Merge pull request #39103 from lsilvs/master 2019-04-24 08:29:39 +02:00
plugin Remove inmemory container map 2019-04-05 15:48:07 -04:00
profiles seccomp: whitelist io_pgetevents() 2019-03-18 20:46:16 +02:00
project Add support for setting GOARM in cross target. 2019-04-17 13:19:14 -07:00
reference Merge pull request #37781 from mtrmac/reference-race-upstream 2018-10-18 12:35:57 -07:00
registry *: remove interfacer linter from CI 2019-03-13 11:48:39 +11:00
reports Fix typos 2018-05-16 09:15:43 +08:00
restartmanager Add canonical import comment 2018-02-05 16:51:57 -05:00
rootless dockerd: fix rootless detection (alternative to #39024) 2019-04-25 16:47:01 +09:00
runconfig Format code with gofmt -s from go-1.11beta1 2018-09-06 15:24:16 -07:00
vendor Merge pull request #39128 from thaJeztah/bump_go_units 2019-04-24 19:01:23 +09:00
volume Use assert.NilError() instead of assert.Assert() 2019-01-21 13:16:02 +01:00
.DEREK.yml Update Derek behaviour 2019-02-28 11:20:18 +00:00
.dockerignore [EXPERIMENTAL] Integration Test on Swarm 2017-02-28 02:10:09 +00:00
.gitignore Add code coverage report and codecov config 2018-01-16 16:50:56 -05:00
.mailmap Update AUTHORS and .mailmap 2019-04-17 13:22:59 +02:00
AUTHORS Update AUTHORS and .mailmap 2019-04-17 13:22:59 +02:00
CHANGELOG.md Fix some typos 2018-09-07 13:13:47 +08:00
codecov.yml Add code coverage report and codecov config 2018-01-16 16:50:56 -05:00
CONTRIBUTING.md Fix link anchors in CONTRIBUTING.md 2018-06-13 21:58:48 +09:00
Dockerfile Make CC toolchains available for other targets 2019-04-17 11:11:08 -07:00
Dockerfile.e2e Dockerfile.e2e fix TestBuildPreserveOwnership 2019-04-19 16:09:01 +02:00
Dockerfile.simple Bump Golang 1.12.4 2019-04-13 10:56:06 +08:00
Dockerfile.windows Bump Golang 1.12.4 2019-04-13 10:56:06 +08:00
Jenkinsfile Add Jenkinsfile 2019-02-26 20:03:29 +00:00
LICENSE Update LICENSE 2018-09-12 14:27:53 +01:00
MAINTAINERS MAINTAINERS: update Akihiro Suda's email address 2019-04-17 18:26:21 +09:00
Makefile Fix DOCKER_CROSS being overwritten 2019-04-15 18:37:56 +02:00
NOTICE Update LICENSE date 2017-02-15 17:34:33 +01:00
poule.yml Poule:Add Windows RS5 2018-10-08 15:38:27 -07:00
README.md Add "Lego set" back in README.md 2017-10-10 14:10:39 +00:00
ROADMAP.md Fix some typos in ROADMAP.md 2019-01-25 14:27:13 +08:00
TESTING.md Merge pull request #37249 from AntaresS/add-test-guidline 2018-06-25 20:44:42 +02:00
vendor.conf Merge pull request #39128 from thaJeztah/bump_go_units 2019-04-24 19:01:23 +09:00
VENDORING.md fix the bare url and the Summary of http://semver.org 2017-01-17 16:20:11 +08:00

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.