redis: add a systemd service file

The redis.conf is changed on the fly to not daemonize redis.
The reason for that is that with this appraoch we don't need
special permissions to write to /var/run/.

Signed-off-by: Frank Meerkoetter <frank@meerkoetter.org>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-extended/redis/redis/redis.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=Redis In-Memory Data Store
+After=network.target
+
+[Service]
+User=root
+Group=root
+ExecStart=/usr/bin/redis-server /etc/redis/redis.conf
+ExecStop=/usr/bin/redis-cli shutdown
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
+

meta-oe/recipes-extended/redis/redis_3.0.2.bb

@@ -12,13 +12,16 @@ SRC_URI = "http://download.redis.io/releases/${BP}.tar.gz \
            file://oe-use-libc-malloc.patch \
            file://redis.conf \
            file://init-redis-server \
+           file://redis.service \
            file://hiredis-update-Makefile-to-add-symbols-to-staticlib.patch \
 "
 
 SRC_URI[md5sum] = "87be8867447f62524b584813e5a7bd14"
 SRC_URI[sha256sum] = "93e422c0d584623601f89b956045be158889ebe594478a2c24e1bf218495633f"
 
-inherit autotools-brokensep update-rc.d
+inherit autotools-brokensep update-rc.d systemd
+
+REDIS_ON_SYSTEMD = "${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'true', 'false', d)}"
 
 do_install() {
     export PREFIX=${D}/${prefix}
@@ -28,9 +31,19 @@ do_install() {
     install -d ${D}/${sysconfdir}/init.d
     install -m 0755 ${WORKDIR}/init-redis-server ${D}/${sysconfdir}/init.d/redis-server
     install -d ${D}/var/lib/redis/
+
+    install -d ${D}${systemd_system_unitdir}
+    install -m 0644 ${WORKDIR}/redis.service ${D}${systemd_system_unitdir}
+    sed -i 's!/usr/sbin/!${sbindir}/!g' ${D}${systemd_system_unitdir}/redis.service
+
+    if [ "${REDIS_ON_SYSTEMD}" = true ]; then
+        sed -i 's!daemonize yes!# daemonize yes!' ${D}/${sysconfdir}/redis/redis.conf
+    fi
 }
 
 CONFFILES_${PN} = "${sysconfdir}/redis/redis.conf"
 
 INITSCRIPT_NAME = "redis-server"
 INITSCRIPT_PARAMS = "defaults 87"
+
+SYSTEMD_SERVICE_${PN} = "redis.service"