From b33454ae0b488e79faafef75a06090be6b2ac6a2 Mon Sep 17 00:00:00 2001 From: Arun Isaac Date: Fri, 10 May 2019 16:56:16 +0530 Subject: linux-container: Support container network sharing. * gnu/system/linux-container.scm (container-essential-services): If network is to be shared with the host, remove network configuration files from etc service. (containerized-operating-system): If network is to be shared with the host, remove nscd service and map host's /var/run/nscd if it exists. (container-script): If network is to be shared with the host, do not create network namespace. * guix/scripts/system.scm (system-derivation-for-action): Add #:container-shared-network? argument. (perform-action): Add #:container-shared-network? argument. (show-help): Add "-N, --network" help information. (%options): Add network option. (process-action): Call perform-action with #container-shared-network? argument. * doc/guix.texi (Invoking guix system): Document the "-N, --network" option. Co-authored-by: Christopher Baines --- guix/scripts/system.scm | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'guix/scripts/system.scm') diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm index 3c3d6cbd5f..cf4418f981 100644 --- a/guix/scripts/system.scm +++ b/guix/scripts/system.scm @@ -4,6 +4,7 @@ ;;; Copyright © 2016, 2017, 2018 Chris Marusich ;;; Copyright © 2017 Mathieu Othacehe ;;; Copyright © 2018 Ricardo Wurmus +;;; Copyright © 2019 Christopher Baines ;;; ;;; This file is part of GNU Guix. ;;; @@ -756,13 +757,17 @@ checking this by themselves in their 'check' procedure." (define* (system-derivation-for-action os action #:key image-size file-system-type - full-boot? mappings) + full-boot? container-shared-network? + mappings) "Return as a monadic value the derivation for OS according to ACTION." (case action ((build init reconfigure) (operating-system-derivation os)) ((container) - (container-script os #:mappings mappings)) + (container-script + os + #:mappings mappings + #:shared-network? container-shared-network?)) ((vm-image) (system-qemu-image os #:disk-image-size image-size)) ((vm) @@ -826,6 +831,7 @@ and TARGET arguments." dry-run? derivations-only? use-substitutes? bootloader-target target image-size file-system-type full-boot? + container-shared-network? (mappings '()) (gc-root #f)) "Perform ACTION for OS. INSTALL-BOOTLOADER? specifies whether to install @@ -834,6 +840,8 @@ target root directory; IMAGE-SIZE is the size of the image to be built, for the 'vm-image' and 'disk-image' actions. The root file system is created as a FILE-SYSTEM-TYPE file system. FULL-BOOT? is used for the 'vm' action; it determines whether to boot directly to the kernel or to the bootloader. +CONTAINER-SHARED-NETWORK? determines if the container will use a separate +network namespace. When DERIVATIONS-ONLY? is true, print the derivation file name(s) without building anything. @@ -883,6 +891,7 @@ static checks." #:file-system-type file-system-type #:image-size image-size #:full-boot? full-boot? + #:container-shared-network? container-shared-network? #:mappings mappings)) ;; For 'init' and 'reconfigure', always build BOOTCFG, even if @@ -1020,6 +1029,8 @@ Some ACTIONS support additional ARGS.\n")) (display (G_ " --share=SPEC for 'vm', share host file system according to SPEC")) (display (G_ " + -N, --network for 'container', allow containers to access the network")) + (display (G_ " -r, --root=FILE for 'vm', 'vm-image', 'disk-image', 'container', and 'build', make FILE a symlink to the result, and register it as a garbage collector root")) @@ -1066,6 +1077,9 @@ Some ACTIONS support additional ARGS.\n")) (lambda (opt name arg result) (alist-cons 'image-size (size->number arg) result))) + (option '(#\N "network") #f #f + (lambda (opt name arg result) + (alist-cons 'container-shared-network? #t result))) (option '("no-bootloader" "no-grub") #f #f (lambda (opt name arg result) (alist-cons 'install-bootloader? #f result))) @@ -1182,6 +1196,8 @@ resulting from command-line parsing." #:file-system-type (assoc-ref opts 'file-system-type) #:image-size (assoc-ref opts 'image-size) #:full-boot? (assoc-ref opts 'full-boot?) + #:container-shared-network? + (assoc-ref opts 'container-shared-network?) #:mappings (filter-map (match-lambda (('file-system-mapping . m) m) -- cgit v1.2.3