diff options
Diffstat (limited to 'poky/meta/recipes-core/volatile-binds/volatile-binds.bb')
-rw-r--r-- | poky/meta/recipes-core/volatile-binds/volatile-binds.bb | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/poky/meta/recipes-core/volatile-binds/volatile-binds.bb b/poky/meta/recipes-core/volatile-binds/volatile-binds.bb new file mode 100644 index 0000000000..d861a71a6b --- /dev/null +++ b/poky/meta/recipes-core/volatile-binds/volatile-binds.bb @@ -0,0 +1,80 @@ +SUMMARY = "Volatile bind mount setup and configuration for read-only-rootfs" +DESCRIPTION = "${SUMMARY}" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://COPYING.MIT;md5=5750f3aa4ea2b00c2bf21b2b2a7b714d" + +SRC_URI = "\ + file://mount-copybind \ + file://COPYING.MIT \ + file://volatile-binds.service.in \ +" + +S = "${WORKDIR}" + +inherit allarch systemd distro_features_check + +REQUIRED_DISTRO_FEATURES = "systemd" + +VOLATILE_BINDS ?= "\ + /var/volatile/lib /var/lib\n\ + /var/volatile/cache /var/cache\n\ + /var/volatile/spool /var/spool\n\ + /var/volatile/srv /srv\n\ +" +VOLATILE_BINDS[type] = "list" +VOLATILE_BINDS[separator] = "\n" + +def volatile_systemd_services(d): + services = [] + for line in oe.data.typed_value("VOLATILE_BINDS", d): + if not line: + continue + what, where = line.split(None, 1) + services.append("%s.service" % what[1:].replace("/", "-")) + return " ".join(services) + +SYSTEMD_SERVICE_${PN} = "${@volatile_systemd_services(d)}" + +FILES_${PN} += "${systemd_unitdir}/system/*.service" + +do_compile () { + while read spec mountpoint; do + if [ -z "$spec" ]; then + continue + fi + + servicefile="${spec#/}" + servicefile="$(echo "$servicefile" | tr / -).service" + sed -e "s#@what@#$spec#g; s#@where@#$mountpoint#g" \ + -e "s#@whatparent@#${spec%/*}#g; s#@whereparent@#${mountpoint%/*}#g" \ + volatile-binds.service.in >$servicefile + done <<END +${@d.getVar('VOLATILE_BINDS').replace("\\n", "\n")} +END + + if [ -e var-volatile-lib.service ]; then + # As the seed is stored under /var/lib, ensure that this service runs + # after the volatile /var/lib is mounted. + sed -i -e "/^Before=/s/\$/ systemd-random-seed.service/" \ + -e "/^WantedBy=/s/\$/ systemd-random-seed.service/" \ + var-volatile-lib.service + fi +} +do_compile[dirs] = "${WORKDIR}" + +do_install () { + install -d ${D}${base_sbindir} + install -m 0755 mount-copybind ${D}${base_sbindir}/ + + install -d ${D}${systemd_unitdir}/system + for service in ${SYSTEMD_SERVICE_${PN}}; do + install -m 0644 $service ${D}${systemd_unitdir}/system/ + done + + # Suppress attempts to process some tmpfiles that are not temporary. + # + install -d ${D}${sysconfdir}/tmpfiles.d ${D}/var/cache + ln -s /dev/null ${D}${sysconfdir}/tmpfiles.d/etc.conf + ln -s /dev/null ${D}${sysconfdir}/tmpfiles.d/home.conf +} +do_install[dirs] = "${WORKDIR}" |