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| author | Mathieu Othacehe <othacehe@gnu.org> | 2020-09-21 10:11:17 +0200 |
|---|---|---|
| committer | Mathieu Othacehe <othacehe@gnu.org> | 2020-09-21 10:22:12 +0200 |
| commit | 6453915cf7729203ef9552c13cb4528c6f4ed122 (patch) | |
| tree | 2b342c4a2ad39feddec5d1a344b4c7982430e61c /gnu | |
| parent | c515bbae0cbb19f7afbc1c732ac725a57bd1964d (diff) | |
build: shepherd: Check for container support.
Fixes: <https://issues.guix.gnu.org/43533>.
* gnu/build/shepherd.scm (fork+exec-command/container): Check if containers
are supported before joining PID namespaces.
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/build/shepherd.scm | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/gnu/build/shepherd.scm b/gnu/build/shepherd.scm index 65141bd60f..91646288d5 100644 --- a/gnu/build/shepherd.scm +++ b/gnu/build/shepherd.scm @@ -1,5 +1,6 @@ ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2020 Mathieu Othacehe <othacehe@gnu.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -196,11 +197,16 @@ namespace, in addition to essential bind-mounts such /proc." #:allow-other-keys #:rest args) "This is a variant of 'fork+exec-command' procedure, that joins the -namespaces of process PID beforehand." - (container-excursion* pid - (lambda () - (apply fork+exec-command command - (strip-keyword-arguments '(#:pid) args))))) +namespaces of process PID beforehand. If there is no support for containers, +on Hurd systems for instance, fallback to direct forking." + (let ((container-support? + (file-exists? "/proc/self/ns")) + (fork-proc (lambda () + (apply fork+exec-command command + (strip-keyword-arguments '(#:pid) args))))) + (if container-support? + (container-excursion* pid fork-proc) + (fork-proc)))) ;; Local Variables: ;; eval: (put 'container-excursion* 'scheme-indent-function 1) |