snmp_exporter: install default config, add rc.d, add user/group

[Thomas Klausner <wiz%gatalith.at@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Thomas Klausner <wiz%gatalith.at@localhost>
Pushed By:	wiz
Date:		Thu Dec 21 20:55:51 2023 +0100
Changeset:	022c9fec986377c955a54619152fe90eb1964e63

Modified Files:
	snmp_exporter/Makefile
	snmp_exporter/PLIST
Added Files:
	snmp_exporter/files/snmp_exporter.sh

Log Message:
snmp_exporter: install default config, add rc.d, add user/group

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=022c9fec986377c955a54619152fe90eb1964e63

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

diffstat:
 snmp_exporter/Makefile               | 20 +++++++++++++
 snmp_exporter/PLIST                  |  1 +
 snmp_exporter/files/snmp_exporter.sh | 54 ++++++++++++++++++++++++++++++++++++
 3 files changed, 75 insertions(+)

diffs:
diff --git a/snmp_exporter/Makefile b/snmp_exporter/Makefile
index 2446093fe8..34a77cae29 100644
--- a/snmp_exporter/Makefile
+++ b/snmp_exporter/Makefile
@@ -17,10 +17,30 @@ SUBST_FILES.path+=	generator/net_snmp.go
 SUBST_MESSAGE.path=	Fixing path to includes and libraries.
 SUBST_STAGE.path=	pre-configure
 
+LOGDIR=				${VARBASE}/log/snmp_exporter
+SNMP_EXPORTER_USER?=		snmp_exporter
+SNMP_EXPORTER_GROUP?=		snmp_exporter
+OWN_DIRS_PERMS+=		${LOGDIR} ${SNMP_EXPORTER_USER} ${SNMP_EXPORTER_GROUP} 0700
+PKG_USERS_VARS+=		SNMP_EXPORTER_USER
+PKG_GROUPS_VARS+=		SNMP_EXPORTER_GROUP
+PKG_GROUPS=			${SNMP_EXPORTER_GROUP}
+PKG_USERS=			${SNMP_EXPORTER_USER}:${SNMP_EXPORTER_GROUP}
+RCD_SCRIPTS=			snmp_exporter
+
+FILES_SUBST+=		SNMP_EXPORTER_USER=${SNMP_EXPORTER_USER:Q}
+FILES_SUBST+=		SNMP_EXPORTER_GROUP=${SNMP_EXPORTER_GROUP:Q}
+FILES_SUBST+=		LOGDIR=${LOGDIR:Q}
+
+BUILD_DEFS+=		VARBASE
+
 INSTALLATION_DIRS+=	share/doc/snmp_exporter
+INSTALLATION_DIRS+=	share/examples/snmp_exporter
+
+CONF_FILES+=		share/examples/snmp_exporter/snmp.yml ${PKG_SYSCONFDIR}/snmp.yml
 
 post-install:
 	${INSTALL_DATA} ${WRKSRC}/README.md ${DESTDIR}${PREFIX}/share/doc/snmp_exporter
+	${INSTALL_DATA} ${WRKSRC}/snmp.yml ${DESTDIR}${PREFIX}/share/examples/snmp_exporter
 
 .include "go-modules.mk"
 .include "../../lang/go/go-module.mk"
diff --git a/snmp_exporter/PLIST b/snmp_exporter/PLIST
index 8d29186a71..02a9edaa24 100644
--- a/snmp_exporter/PLIST
+++ b/snmp_exporter/PLIST
@@ -2,3 +2,4 @@
 bin/generator
 bin/snmp_exporter
 share/doc/snmp_exporter/README.md
+share/examples/snmp_exporter/snmp.yml
diff --git a/snmp_exporter/files/snmp_exporter.sh b/snmp_exporter/files/snmp_exporter.sh
new file mode 100644
index 0000000000..0c6e739e4a
--- /dev/null
+++ b/snmp_exporter/files/snmp_exporter.sh
@@ -0,0 +1,54 @@
+#!@RCD_SCRIPTS_SHELL@
+#
+# $NetBSD: snmp_exporter.sh,v 1.1 2023/12/16 22:25:07 wiz Exp $
+#
+# PROVIDE: snmp_exporter
+# REQUIRE: DAEMON
+# KEYWORD: shutdown
+#
+# Consider installing pkgtools/rc.subr in unprivileged.
+#
+# You will need to set some variables in @SYSCONFBASE@/rc.conf to start snmp_exporter:
+#
+# snmp_exporter=YES
+
+if [ -f @SYSCONFBASE@/rc.subr ]; then
+	$_rc_subr_loaded . @SYSCONFBASE@/rc.subr
+fi
+
+name="snmp_exporter"
+rcvar=$name
+snmp_exporter_user="@SNMP_EXPORTER_USER@"
+snmp_exporter_group="@SNMP_EXPORTER_GROUP@"
+command="@PREFIX@/bin/snmp_exporter"
+command_args="--config.file @PKG_SYSCONFDIR@/snmp.yml > @LOGDIR@/snmp_exporter.log 2>&1 &"
+
+
+if [ -f @SYSCONFBASE@/rc.subr -a -d @SYSCONFBASE@/rc.d -a -f @SYSCONFBASE@/rc.d/DAEMON ]; then
+	load_rc_config $name
+	run_rc_command "$1"
+else
+	if [ -f @SYSCONFBASE@/rc.conf ]; then
+		. @SYSCONFBASE@/rc.conf
+	fi
+	case "$1" in
+	start)
+		if [ -r "${pidfile}" ]; then
+			@ECHO@ "Already running ${name}."
+		else
+			@ECHO@ "Starting ${name}."
+			eval ${command} ${command_args}
+		fi
+		;;
+	stop)
+		if [ -r "${pidfile}" ]; then
+			@ECHO@ "Stopping ${name}."
+			kill `@CAT@ "${pidfile}"` && @RM@ "${pidfile}"
+		fi
+		;;
+	*)
+		@ECHO@ "Usage: $0 {start|stop}" 1>&2
+		exit 10
+		;;
+	esac
+fi