me
/
guix
Archived
1
0
Fork 0
This repository has been archived on 2024-08-07. You can view files and clone it, but cannot push or open issues/pull-requests.
guix/gnu/services/docker.scm

221 lines
9.2 KiB
Scheme
Raw Blame History

This file contains invisible Unicode characters!

This file contains invisible Unicode characters that may be processed differently from what appears below. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to reveal hidden characters.

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Danny Milosavljevic <dannym@scratchpost.org>
;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2020 Jesse Dowell <jessedowell@gmail.com>
;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu services docker)
#:use-module (gnu services)
#:use-module (gnu services configuration)
#:use-module (gnu services base)
#:use-module (gnu services dbus)
#:use-module (gnu services shepherd)
#:use-module (gnu system setuid)
#:use-module (gnu system shadow)
#:use-module (gnu packages docker)
#:use-module (gnu packages linux) ;singularity
#:use-module (guix records)
#:use-module (guix gexp)
#:use-module (guix packages)
#:export (docker-configuration
docker-service-type
singularity-service-type))
(define-configuration docker-configuration
(docker
(package docker)
"Docker daemon package.")
(docker-cli
(package docker-cli)
"Docker client package.")
(containerd
(package containerd)
"containerd package.")
(proxy
(package docker-libnetwork-cmd-proxy)
"The proxy package to support inter-container and outside-container
loop-back communications.")
(enable-proxy?
(boolean #t)
"Enable or disable the user-land proxy (enabled by default).")
(debug?
(boolean #f)
"Enable or disable debug output.")
(enable-iptables?
(boolean #t)
"Enable addition of iptables rules (enabled by default).")
(environment-variables
(list '())
"Environment variables to set for dockerd")
(no-serialization))
(define %docker-accounts
(list (user-group (name "docker") (system? #t))))
(define (%containerd-activation config)
(let ((state-dir "/var/lib/containerd"))
#~(begin
(use-modules (guix build utils))
(mkdir-p #$state-dir))))
(define (%docker-activation config)
(%containerd-activation config)
(let ((state-dir "/var/lib/docker"))
#~(begin
(use-modules (guix build utils))
(mkdir-p #$state-dir))))
(define (containerd-shepherd-service config)
(let* ((package (docker-configuration-containerd config))
(debug? (docker-configuration-debug? config))
(containerd (docker-configuration-containerd config)))
(shepherd-service
(documentation "containerd daemon.")
(provision '(containerd))
(start #~(make-forkexec-constructor
(list (string-append #$package "/bin/containerd")
#$@(if debug?
'("--log-level=debug")
'()))
;; For finding containerd-shim binary.
#:environment-variables
(list (string-append "PATH=" #$containerd "/bin"))
#:log-file "/var/log/containerd.log"))
(stop #~(make-kill-destructor)))))
(define (docker-shepherd-service config)
(let* ((docker (docker-configuration-docker config))
(enable-proxy? (docker-configuration-enable-proxy? config))
(enable-iptables? (docker-configuration-enable-iptables? config))
(environment-variables (docker-configuration-environment-variables config))
(proxy (docker-configuration-proxy config))
(debug? (docker-configuration-debug? config)))
(shepherd-service
(documentation "Docker daemon.")
(provision '(dockerd))
(requirement '(containerd
dbus-system
elogind
file-system-/sys/fs/cgroup/blkio
file-system-/sys/fs/cgroup/cpu
file-system-/sys/fs/cgroup/cpuset
file-system-/sys/fs/cgroup/devices
file-system-/sys/fs/cgroup/memory
file-system-/sys/fs/cgroup/pids
networking
udev))
(start #~(make-forkexec-constructor
(list (string-append #$docker "/bin/dockerd")
"-p" "/var/run/docker.pid"
#$@(if debug?
'("--debug" "--log-level=debug")
'())
#$@(if enable-proxy?
(list "--userland-proxy=true"
#~(string-append
"--userland-proxy-path=" #$proxy "/bin/proxy"))
'("--userland-proxy=false"))
(if #$enable-iptables?
"--iptables"
"--iptables=false"))
#:environment-variables
(list #$@environment-variables)
#:pid-file "/var/run/docker.pid"
#:log-file "/var/log/docker.log"))
(stop #~(make-kill-destructor)))))
(define docker-service-type
(service-type (name 'docker)
(description "Provide capability to run Docker application
bundles in Docker containers.")
(extensions
(list
;; Make sure the 'docker' command is available.
(service-extension profile-service-type
(compose list docker-configuration-docker-cli))
(service-extension activation-service-type
%docker-activation)
(service-extension shepherd-root-service-type
(lambda (config)
(list (containerd-shepherd-service config)
(docker-shepherd-service config))))
(service-extension account-service-type
(const %docker-accounts))))
(default-value (docker-configuration))))
;;;
;;; Singularity.
;;;
(define %singularity-activation
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(define %mount-directory
"/var/singularity/mnt/")
;; Create the directories that Singularity 2.6 expects to find. Make
;; them #o755 like the 'install-data-hook' rule in 'Makefile.am' of
;; Singularity 2.6.1.
(for-each (lambda (directory)
(let ((directory (string-append %mount-directory
directory)))
(mkdir-p directory)
(chmod directory #o755)))
'("container" "final" "overlay" "session"))
(chmod %mount-directory #o755))))
(define (singularity-setuid-programs singularity)
"Return the setuid-root programs that SINGULARITY needs."
(define helpers
;; The helpers, under a meaningful name.
(computed-file "singularity-setuid-helpers"
#~(begin
(mkdir #$output)
(for-each (lambda (program)
(symlink (string-append #$singularity
"/libexec/singularity"
"/bin/"
program "-suid")
(string-append #$output
"/singularity-"
program
"-helper")))
'("action" "mount" "start")))))
(map file-like->setuid-program
(list (file-append helpers "/singularity-action-helper")
(file-append helpers "/singularity-mount-helper")
(file-append helpers "/singularity-start-helper"))))
(define singularity-service-type
(service-type (name 'singularity)
(description
"Install the Singularity application bundle tool.")
(extensions
(list (service-extension setuid-program-service-type
singularity-setuid-programs)
(service-extension activation-service-type
(const %singularity-activation))))
(default-value singularity)))