system: Create home directories once 'file-systems' is up.

Fixes <http://bugs.gnu.org/21108>.
Reported by Andy Patterson <ajpatter@uwaterloo.ca>
and Leo Famulari <leo@famulari.name>.

* gnu/build/activation.scm (activate-users+groups)[activate-user]: Pass
  #:create-home? #t iff CREATE-HOME? and SYSTEM?.
(activate-user-home): New procedure.
* gnu/system/shadow.scm (account-shepherd-service): New procedure.
(account-service-type)[extensions]: Add SHEPHERD-ROOT-SERVICE-TYPE
extension.
* gnu/tests/base.scm (run-basic-test)["home"]
["skeletons in home directories"]: New tests.
* gnu/tests/install.scm (%separate-home-os, %separate-home-os-source)
(%test-separate-home-os): New variables.
This commit is contained in:
Ludovic Courtès 2017-02-01 12:16:39 +01:00
parent 524ee6c9e5
commit ae763b5b0b
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4 changed files with 147 additions and 3 deletions

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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;;
;;; This file is part of GNU Guix.
@ -25,6 +25,7 @@
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (activate-users+groups
activate-user-home
activate-etc
activate-setuid-programs
activate-/bin/sh
@ -220,7 +221,7 @@ numeric gid or #f."
#:supplementary-groups supplementary-groups
#:comment comment
#:home home
#:create-home? create-home?
#:create-home? (and create-home? system?)
#:shell shell
#:password password)
@ -268,6 +269,20 @@ numeric gid or #f."
(((names . _) ...)
names)))))
(define (activate-user-home users)
"Create and populate the home directory of USERS, a list of tuples, unless
they already exist."
(define ensure-user-home
(match-lambda
((name uid group supplementary-groups comment home create-home?
shell password system?)
(unless (or (not home) (directory-exists? home))
(mkdir-p home)
(unless system?
(copy-account-skeletons home))))))
(for-each ensure-user-home users))
(define (activate-etc etc)
"Install ETC, a directory in the store, as the source of static files for
/etc."

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@ -21,9 +21,11 @@
#:use-module (guix records)
#:use-module (guix gexp)
#:use-module (guix store)
#:use-module (guix modules)
#:use-module (guix sets)
#:use-module (guix ui)
#:use-module (gnu services)
#:use-module (gnu services shepherd)
#:use-module ((gnu system file-systems)
#:select (%tty-gid))
#:use-module ((gnu packages admin)
@ -43,6 +45,7 @@
user-account-supplementary-groups
user-account-comment
user-account-home-directory
user-account-create-home-directory?
user-account-shell
user-account-system?
@ -288,6 +291,35 @@ group."
(activate-users+groups (list #$@user-specs)
(list #$@group-specs))))
(define (account-shepherd-service accounts+groups)
"Return a Shepherd service that creates the home directories for the user
accounts among ACCOUNTS+GROUPS."
(define accounts
(filter user-account? accounts+groups))
;; Create home directories only once 'file-systems' is up. This makes sure
;; they are created in the right place if /home lives on a separate
;; partition.
;;
;; XXX: We arrange for this service to stop right after it's done its job so
;; that 'guix system reconfigure' knows that it can reload it fearlessly
;; (and thus create new home directories). The cost of this hack is that
;; there's a small window during which first-time logins could happen before
;; the home directory has been created.
(list (shepherd-service
(requirement '(file-systems))
(provision '(user-homes))
(modules '((gnu build activation)))
(start (with-imported-modules (source-module-closure
'((gnu build activation)))
#~(lambda ()
(activate-user-home
(list #$@(map user-account->gexp accounts)))
#f))) ;stop
(stop #~(const #f))
(respawn? #f)
(documentation "Create user home directories."))))
(define (shells-file shells)
"Return a file-like object that builds a shell list for use as /etc/shells
based on SHELLS. /etc/shells is used by xterm, polkit, and other programs."
@ -327,6 +359,8 @@ the /etc/skel directory for those."
(extensions
(list (service-extension activation-service-type
account-activation)
(service-extension shepherd-root-service-type
account-shepherd-service)
(service-extension etc-service-type
etc-files)))))

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@ -146,6 +146,43 @@ info --version")
(pk 'services services)
'(root #$@(operating-system-shepherd-service-names os)))))
(test-assert "homes"
(let ((homes
'#$(map user-account-home-directory
(filter user-account-create-home-directory?
(operating-system-user-accounts os)))))
(marionette-eval
`(begin
(use-modules (gnu services herd) (srfi srfi-1))
;; Home directories are supposed to exist once 'user-homes'
;; has been started.
(start-service 'user-homes)
(every (lambda (home)
(and (file-exists? home)
(file-is-directory? home)))
',homes))
marionette)))
(test-assert "skeletons in home directories"
(let ((homes
'#$(filter-map (lambda (account)
(and (user-account-create-home-directory?
account)
(not (user-account-system? account))
(user-account-home-directory account)))
(operating-system-user-accounts os))))
(marionette-eval
`(begin
(use-modules (srfi srfi-1) (ice-9 ftw))
(every (lambda (home)
(null? (lset-difference string=?
(scandir "/etc/skel/")
(scandir home))))
',homes))
marionette)))
(test-equal "login on tty1"
"root\n"
(begin

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@ -35,6 +35,7 @@
#:use-module (guix utils)
#:export (%test-installed-os
%test-separate-store-os
%test-separate-home-os
%test-raid-root-os
%test-encrypted-os
%test-btrfs-root-os))
@ -218,7 +219,6 @@ IMAGE, a disk image. The QEMU VM is has access to MEMORY-SIZE MiB of RAM."
"-no-reboot" "-m" #$(number->string memory-size)
"-drive" "file=disk.img,if=virtio")))))
(define %test-installed-os
(system-test
(name "installed-os")
@ -232,6 +232,64 @@ build (current-guix) and then store a couple of full system images.")
(run-basic-test %minimal-os command
"installed-os")))))
;;;
;;; Separate /home.
;;;
(define-os-with-source (%separate-home-os %separate-home-os-source)
;; The OS we want to install.
(use-modules (gnu) (gnu tests) (srfi srfi-1))
(operating-system
(host-name "liberigilo")
(timezone "Europe/Paris")
(locale "en_US.utf8")
(bootloader (grub-configuration (device "/dev/vdb")))
(kernel-arguments '("console=ttyS0"))
(file-systems (cons* (file-system
(device "my-root")
(title 'label)
(mount-point "/")
(type "ext4"))
(file-system
(device "none")
(title 'device)
(type "tmpfs")
(mount-point "/home")
(type "tmpfs"))
%base-file-systems))
(users (cons* (user-account
(name "alice")
(group "users")
(home-directory "/home/alice"))
(user-account
(name "charlie")
(group "users")
(home-directory "/home/charlie"))
%base-user-accounts))
(services (cons (service marionette-service-type
(marionette-configuration
(imported-modules '((gnu services herd)
(guix combinators)))))
%base-services))))
(define %test-separate-home-os
(system-test
(name "separate-home-os")
(description
"Test basic functionality of an installed OS with a separate /home
partition. In particular, home directories must be correctly created (see
<https://bugs.gnu.org/21108>).")
(value
(mlet* %store-monad ((image (run-install %separate-home-os
%separate-home-os-source
#:script
%simple-installation-script))
(command (qemu-command/writable-image image)))
(run-basic-test %separate-home-os command "separate-home-os")))))
;;;
;;; Separate /gnu/store partition.