Split Rocket startup from REST application

Enable drop-in replacement of WSGI application hosts
with PREFERRED_PROVIDER_virtual/obmc-wsgihost.

Change-Id: Ieaa4b17cb4645bfc3224aca2edebb15d023982d5
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/common/recipes-phosphor/interfaces/phosphor-rocket/phosphor-rocket.service b/common/recipes-phosphor/interfaces/phosphor-rocket/phosphor-rocket.service
new file mode 100644
index 0000000..41eaf8b
--- /dev/null
+++ b/common/recipes-phosphor/interfaces/phosphor-rocket/phosphor-rocket.service
@@ -0,0 +1,13 @@
+[Unit]
+Description=Phosphor Webserver
+PartOf=systemd-networkd.service
+After=obmc-webserver-pre.target
+
+[Service]
+Restart=always
+ExecStart={sbindir}/phosphor-rocket $APPLICATION
+Environment="PYTHONUNBUFFERED=1"
+EnvironmentFile={envfiledir}/obmc/wsgi_app
+
+[Install]
+WantedBy={SYSTEMD_DEFAULT_TARGET}