Install systemd services with autotools

Change-Id: Id938f3dab4826ac748abb5e0b169d800c2a625a5

Makefile.am

@@ -5,6 +5,10 @@ SUBDIRS = include src contrib tests
 BUILT_SOURCES = $(top_srcdir)/.version
 EXTRA_DIST = git-version-gen .version
 
+DISTCHECK_CONFIGURE_FLAGS = \
+	--with-systemdsystemunitdir=$$dc_install_base/$(systemdsystemunitdir)
+
+
 @RELMAKE@
 
 $(top_srcdir)/.version:

configure.ac

@@ -19,6 +19,13 @@ AC_PROG_CC
 AC_PROG_INSTALL
 AC_PROG_RANLIB
 
+dnl check for pkg-config (explained in detail in libosmocore/configure.ac)
+AC_PATH_PROG(PKG_CONFIG_INSTALLED, pkg-config, no)
+if test "x$PKG_CONFIG_INSTALLED" = "xno"; then
+        AC_MSG_WARN([You need to install pkg-config])
+fi
+PKG_PROG_PKG_CONFIG([0.20])
+
 dnl checks for header files
 AC_HEADER_STDC
 
@@ -52,6 +59,21 @@ then
 	CPPFLAGS="$CPPFLAGS $WERROR_FLAGS"
 fi
 
+# https://www.freedesktop.org/software/systemd/man/daemon.html
+AC_ARG_WITH([systemdsystemunitdir],
+     [AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files])],,
+     [with_systemdsystemunitdir=auto])
+AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"], [
+     def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
+     AS_IF([test "x$def_systemdsystemunitdir" = "x"],
+   [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
+    [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
+    with_systemdsystemunitdir=no],
+   [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
+AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
+      [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
+AM_CONDITIONAL([HAVE_SYSTEMD], [test "x$with_systemdsystemunitdir" != "xno"])
+
 AC_ARG_ENABLE([external_tests],
 		AC_HELP_STRING([--enable-external-tests],
 				[Include the VTY tests in make check [default=no]]),
@@ -122,5 +144,6 @@ AC_OUTPUT(
     include/osmo-pcap/Makefile
     src/Makefile
     contrib/Makefile
+    contrib/systemd/Makefile
     tests/Makefile
     Makefile)

contrib/Makefile.am

@@ -1,2 +1,3 @@
+SUBDIRS = systemd
 dist_pkgdata_DATA = osmo_pcap_clean_old
 EXTRA_DIST = osmo-pcap-server.cfg osmo-pcap-client.cfg

contrib/systemd/Makefile.am

@@ -0,0 +1,8 @@
+if HAVE_SYSTEMD
+SYSTEMD_SERVICES = \
+	osmo-pcap-client.service \
+	osmo-pcap-server.service
+
+EXTRA_DIST = $(SYSTEMD_SERVICES)
+systemdsystemunit_DATA = $(SYSTEMD_SERVICES)
+endif

contrib/systemd/osmo-pcap-client.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=PCAP Client for the PCAP aggregation
+
+[Service]
+Type=simple
+Restart=always
+ExecStart=/usr/bin/osmo-pcap-client -c /etc/osmocom/osmo-pcap-client.cfg
+RestartSec=2
+
+[Install]
+WantedBy=multi-user.target
+

contrib/systemd/osmo-pcap-server.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=PCAP Server for the PCAP aggregation
+
+[Service]
+Type=simple
+Restart=always
+ExecStart=/usr/bin/osmo-pcap-server -c /etc/osmocom/osmo-pcap-server.cfg
+RestartSec=2
+
+[Install]
+WantedBy=multi-user.target
+

debian/osmo-pcap-client.install

@@ -1 +1,2 @@
+lib/systemd/system/osmo-pcap-client.service
 usr/bin/osmo-pcap-client

debian/osmo-pcap-server.install

@@ -1 +1,2 @@
+lib/systemd/system/osmo-pcap-server.service
 usr/bin/osmo-pcap-server

debian/rules

@@ -16,6 +16,7 @@ PCAP_LIBS="-lpcap"
 
 override_dh_auto_configure:
 	dh_auto_configure -- \
+		--with-systemdsystemunitdir=/lib/systemd/system \
 		--with-pcap-config=/bin/false \
 		PCAP_CFLAGS=$(PCAP_CFLAGS) \
 		PCAP_LIBS=$(PCAP_LIBS)