From 11c4c4ae54bbef647358d2b6d6c3ddf0457f81f7 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Tue, 18 Mar 2014 11:36:03 +0100
Subject: [PATCH] =?UTF-8?q?Add=20command=20=E2=80=98nixos-container-shell?=
=?UTF-8?q?=E2=80=99=20for=20logging=20into=20a=20container?=
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---
nixos/modules/virtualisation/containers.nix | 54 +++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/nixos/modules/virtualisation/containers.nix b/nixos/modules/virtualisation/containers.nix
index ff17fcc1221d..28ee78e3fcce 100644
--- a/nixos/modules/virtualisation/containers.nix
+++ b/nixos/modules/virtualisation/containers.nix
@@ -14,6 +14,58 @@ let
installPhase = "true";
};
+ nixos-container-shell = pkgs.writeScriptBin "nixos-container-shell"
+ ''
+ #! ${pkgs.bash}/bin/sh -e
+
+ usage() {
+ echo "Usage: $0 <container-name>" >&2
+ echo " $0 (-r|--root-shell) <container-name>" >&2
+ }
+
+ args="`getopt --options 'r' -l help -- "$@"`"
+ eval "set -- $args"
+ rootShell=
+ while [ $# -gt 0 ]; do
+ case "$1" in
+ (--help) usage; exit 0;;
+ (-r|--root-shell) rootShell=1;;
+ (--) shift; break;;
+ (*) break;;
+ esac
+ shift
+ done
+
+ container="$1"
+ if [ -z "$container" ]; then
+ usage
+ exit 1
+ fi
+ shift
+
+ root="/var/lib/containers/$container"
+ if ! [ -d "$root" ]; then
+ echo "$0: container ‘$container’ does not exist" >&2
+ exit 1
+ fi
+
+ if [ -n "$rootShell" ]; then
+ socket="$root/var/lib/root-shell.socket"
+ else
+ socket="$root/var/lib/login.socket"
+ fi
+ if ! [ -S "$socket" ]; then
+ echo "$0: socket ‘$socket’ does not exist" >&2
+ exit 1
+ fi
+
+ if [ -n "$rootShell" ]; then
+ exec ${pkgs.socat}/bin/socat "unix:$socket" -
+ else
+ exec ${pkgs.socat}/bin/socat "unix:$socket" -,echo=0,raw
+ fi
+ '';
+
in
{
@@ -246,5 +298,7 @@ in
${cfg.localAddress} ${name}.containers
'') config.systemd.containers);
+ environment.systemPackages = optional (config.systemd.containers != {}) nixos-container-shell;
+
};
}