Make script safer with set -e and set -u, change parts that might fail to continue

[lxc-debian-unprivileged.git] / templates / lxc-debian-unprivileged

diff --git a/templates/lxc-debian-unprivileged b/templates/lxc-debian-unprivileged
index 7c6abd11879c2e85b74080ff6f0a16b2c82886ea..89dbd50486b6c491d6552e6d6dfa695c6139d312 100755 (executable)
--- a/templates/lxc-debian-unprivileged
+++ b/templates/lxc-debian-unprivileged
@@ -31,9 +31,13 @@ done
 
 if [ "$MAPPED" == "no" ]; then
     echo "This template can only be used for unprivileged containers." 1>&2
 
 if [ "$MAPPED" == "no" ]; then
     echo "This template can only be used for unprivileged containers." 1>&2

-    echo "You might want the \"debian\" template instead." 1|&2
+    echo "You might want the \"debian\" template instead." 1>&2
+    exit 1

 fi
 
 fi
 

+set -e
+set -u
+

 # Make sure the usual locations are in PATH
 export PATH=/usr/sbin:/usr/bin:/sbin:/bin:$PATH
 export GREP_OPTIONS=""
 # Make sure the usual locations are in PATH
 export PATH=/usr/sbin:/usr/bin:/sbin:/bin:$PATH
 export GREP_OPTIONS=""


@@ -208,11 +212,11 @@ deb $DEBIAN_MIRROR $DEBIAN_RELEASE main
 deb http://security.debian.org/ $DEBIAN_RELEASE/updates main
 EOF
 
 deb http://security.debian.org/ $DEBIAN_RELEASE/updates main
 EOF
 

-# disable bits of systemd that we hates
-chroot "${LXC_ROOTFS}" /usr/sbin/update-rc.d -f checkroot.sh disable > /dev/null 2>&1
-chroot "${LXC_ROOTFS}" /usr/sbin/update-rc.d -f umountfs disable > /dev/null 2>&1
-chroot "${LXC_ROOTFS}" /usr/sbin/update-rc.d -f hwclock.sh disable > /dev/null 2>&1
-chroot "${LXC_ROOTFS}" /usr/sbin/update-rc.d -f hwclockfirst.sh disable > /dev/null 2>&1
+# disable bits of systemd / initrd that break things
+chroot "${LXC_ROOTFS}" /usr/sbin/update-rc.d -f checkroot.sh disable > /dev/null 2>&1 || true
+chroot "${LXC_ROOTFS}" /usr/sbin/update-rc.d -f umountfs disable > /dev/null 2>&1 || true
+chroot "${LXC_ROOTFS}" /usr/sbin/update-rc.d -f hwclock.sh disable > /dev/null 2>&1 || true
+chroot "${LXC_ROOTFS}" /usr/sbin/update-rc.d -f hwclockfirst.sh disable > /dev/null 2>&1 || true

 
 if [ -e "${LXC_ROOTFS}/etc/systemd/system/" ]; then
     touch "${LXC_ROOTFS}/etc/systemd/system/systemd-setup-dgram-qlen.service"
 
 if [ -e "${LXC_ROOTFS}/etc/systemd/system/" ]; then
     touch "${LXC_ROOTFS}/etc/systemd/system/systemd-setup-dgram-qlen.service"