[meta-virtualization] [PATCH] lxc: create lxc cache directory

[Mark Asselstine]

Many LXC templates expect the cache directory to exist and use it without
necessarily checking if it exists. Normally the Makefile would create this
directory but since /var/cache is volatile we must use the volatile system to
create this directory at boot, or when the package is installed.

Signed-off-by: Mark Asselstine <mark.asselstine at windriver.com>
---

If templates are expecting longer term cache they will need to be
modified accordingly since this cache directory will not survive
reboots...

 recipes-containers/lxc/lxc_0.9.0.bb | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/recipes-containers/lxc/lxc_0.9.0.bb b/recipes-containers/lxc/lxc_0.9.0.bb
index 30316bb..563131f 100644
--- a/recipes-containers/lxc/lxc_0.9.0.bb
+++ b/recipes-containers/lxc/lxc_0.9.0.bb
@@ -3,7 +3,7 @@ SECTION = "console/utils"
 LICENSE = "GPLv2"
 LIC_FILES_CHKSUM = "file://COPYING;md5=4fbd65380cdd255951079008b364516c"
 PRIORITY = "optional"
-PR = "r2"
+PR = "r3"
 DEPENDS = "libxml2 libcap"
 RDEPENDS_${PN} = " \
 		rsync \
@@ -47,3 +47,19 @@ FILES_${PN}-doc = "${mandir} ${infodir}"
 # For LXC the docdir only contains example configuration files and should be included in the lxc package
 FILES_${PN} += "${docdir}"
 FILES_${PN}-dbg += "${libexecdir}/lxc/.debug"
+
+do_install_append() {
+	# The /var/cache/lxc directory created by the Makefile
+	# is wiped out in volatile, we need to create this at boot.
+	rm -rf ${D}${localstatedir}/cache
+	install -d ${D}${sysconfdir}/default/volatiles
+	echo "d root root 0755 ${localstatedir}/cache/lxc none" \
+	     > ${D}${sysconfdir}/default/volatiles/99_lxc
+
+}
+
+pkg_postinst_${PN}() {
+	if [ -z "$D" ] && [ -e /etc/init.d/populate-volatile.sh ] ; then
+		/etc/init.d/populate-volatile.sh update
+	fi
+}
-- 
1.7.12