145 lines
5.0 KiB
Scheme
145 lines
5.0 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
|
;;; Copyright © 2015 David Thompson <davet@gnu.org>
|
|
;;;
|
|
;;; 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 (test-containers)
|
|
#:use-module (guix utils)
|
|
#:use-module (guix build syscalls)
|
|
#:use-module (gnu build linux-container)
|
|
#:use-module (srfi srfi-64)
|
|
#:use-module (ice-9 match))
|
|
|
|
(define (assert-exit x)
|
|
(primitive-exit (if x 0 1)))
|
|
|
|
(test-begin "containers")
|
|
|
|
;; Skip these tests unless user namespaces are available and the setgroups
|
|
;; file (introduced in Linux 3.19 to address a security issue) exists.
|
|
(unless (and (user-namespace-supported?)
|
|
(unprivileged-user-namespace-supported?)
|
|
(setgroups-supported?))
|
|
(test-skip 7))
|
|
|
|
(test-assert "call-with-container, exit with 0 when there is no error"
|
|
(zero?
|
|
(call-with-container '() (const #t) #:namespaces '(user))))
|
|
|
|
(test-assert "call-with-container, user namespace"
|
|
(zero?
|
|
(call-with-container '()
|
|
(lambda ()
|
|
;; The user is root within the new user namespace.
|
|
(assert-exit (and (zero? (getuid)) (zero? (getgid)))))
|
|
#:namespaces '(user))))
|
|
|
|
(test-assert "call-with-container, uts namespace"
|
|
(zero?
|
|
(call-with-container '()
|
|
(lambda ()
|
|
;; The user is root within the container and should be able to change
|
|
;; the hostname of that container.
|
|
(sethostname "test-container")
|
|
(primitive-exit 0))
|
|
#:namespaces '(user uts))))
|
|
|
|
(test-assert "call-with-container, pid namespace"
|
|
(zero?
|
|
(call-with-container '()
|
|
(lambda ()
|
|
(match (primitive-fork)
|
|
(0
|
|
;; The first forked process in the new pid namespace is pid 2.
|
|
(assert-exit (= 2 (getpid))))
|
|
(pid
|
|
(primitive-exit
|
|
(match (waitpid pid)
|
|
((_ . status)
|
|
(status:exit-val status)))))))
|
|
#:namespaces '(user pid))))
|
|
|
|
(test-assert "call-with-container, mnt namespace"
|
|
(zero?
|
|
(call-with-container '(("none" device "/testing" "tmpfs" () #f #f))
|
|
(lambda ()
|
|
(assert-exit (file-exists? "/testing")))
|
|
#:namespaces '(user mnt))))
|
|
|
|
(test-assert "call-with-container, all namespaces"
|
|
(zero?
|
|
(call-with-container '()
|
|
(lambda ()
|
|
(primitive-exit 0)))))
|
|
|
|
(test-assert "container-excursion"
|
|
(call-with-temporary-directory
|
|
(lambda (root)
|
|
;; Two pipes: One for the container to signal that the test can begin,
|
|
;; and one for the parent to signal to the container that the test is
|
|
;; over.
|
|
(match (list (pipe) (pipe))
|
|
(((start-in . start-out) (end-in . end-out))
|
|
(define (container)
|
|
(close end-out)
|
|
(close start-in)
|
|
;; Signal for the test to start.
|
|
(write 'ready start-out)
|
|
(close start-out)
|
|
;; Wait for test completion.
|
|
(read end-in)
|
|
(close end-in))
|
|
|
|
(define (namespaces pid)
|
|
(let ((pid (number->string pid)))
|
|
(map (lambda (ns)
|
|
(readlink (string-append "/proc/" pid "/ns/" ns)))
|
|
'("user" "ipc" "uts" "net" "pid" "mnt"))))
|
|
|
|
(let* ((pid (run-container root '() %namespaces 1 container))
|
|
(container-namespaces (namespaces pid))
|
|
(result
|
|
(begin
|
|
(close start-out)
|
|
;; Wait for container to be ready.
|
|
(read start-in)
|
|
(close start-in)
|
|
(container-excursion pid
|
|
(lambda ()
|
|
;; Fork again so that the pid is within the context of
|
|
;; the joined pid namespace instead of the original pid
|
|
;; namespace.
|
|
(match (primitive-fork)
|
|
(0
|
|
;; Check that all of the namespace identifiers are
|
|
;; the same as the container process.
|
|
(assert-exit
|
|
(equal? container-namespaces
|
|
(namespaces (getpid)))))
|
|
(fork-pid
|
|
(match (waitpid fork-pid)
|
|
((_ . status)
|
|
(primitive-exit
|
|
(status:exit-val status)))))))))))
|
|
(close end-in)
|
|
;; Stop the container.
|
|
(write 'done end-out)
|
|
(close end-out)
|
|
(waitpid pid)
|
|
(zero? result)))))))
|
|
|
|
(test-end)
|