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- 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 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}"
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