app-metrics/prometheus: Add ebuild with systemd service file.

Package-Manager: Portage-2.3.76, Repoman-2.3.16

app-metrics/prometheus/files/prometheus-3.initd

@@ -0,0 +1,28 @@
+#!/sbin/openrc-run
+# Copyright 2016-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+description="Prometheus monitoring system and time series database"
+pidfile=${pidfile:-"/run/${RC_SVCNAME}.pid"}
+user=${user:-${SVCNAME}}
+group=${group:-${SVCNAME}}
+
+command="/usr/bin/prometheus"
+command_args="${command_args:---config.file=/etc/prometheus/prometheus.yml --storage.tsdb.path=/var/lib/prometheus/data}"
+command_background="true"
+start_stop_daemon_args="--user ${user} --group ${group} \
+	--stdout /var/log/${RC_SVCNAME}/${RC_SVCNAME}.log \
+	--stderr /var/log/${RC_SVCNAME}/${RC_SVCNAME}.log"
+
+extra_started_commands="reload"
+
+depend() {
+	after net
+}
+
+reload() {
+        ebegin "Reloading ${SVCNAME}"
+        start-stop-daemon --signal HUP --pidfile "${pidfile}"
+        eend $? "Failed to stop ${SVCNAME}"
+}
+

app-metrics/prometheus/files/prometheus.confd

@@ -0,0 +1,2 @@
+# arguments for Prometheus
+command_args=""

app-metrics/prometheus/files/prometheus.initd

@@ -0,0 +1,34 @@
+#!/sbin/openrc-run
+# Copyright 2016-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+description="Prometheus monitoring system and time series database"
+pidfile=/var/run/${RC_SVCNAME}.pid
+user=${user:-${RC_SVCNAME}}
+group=${group:-${RC_SVCNAME}}
+command_user=${user}:${group}
+
+command="/usr/bin/prometheus"
+command_args="${command_args:---config.file=/etc/prometheus/prometheus.yml --storage.tsdb.path=/var/lib/prometheus/data}"
+command_background="true"
+error_log=/var/log/${RC_SVCNAME}/${RC_SVCNAME}.log
+output_log=/var/log/${RC_SVCNAME}/${RC_SVCNAME}.log
+
+extra_started_commands="reload"
+
+depend() {
+	after net
+}
+
+reload() {
+	ebegin "Reloading configuration for ${RC_SVCNAME}"
+	case "$supervisor" in
+		supervise-daemon)
+		supervise-daemon ${RC_SVCNAME} --signal HUP
+		;;
+		*)
+		start-stop-daemon --signal HUP --pidfile "${pidfile}"
+		;;
+	esac
+	eend $? "Failed to reload ${RC_SVCNAME}"
+}

app-metrics/prometheus/files/prometheus.service

@@ -0,0 +1,15 @@
+
+[Unit]
+Description=Prometheus monitoring system and time series database
+Documentation=https://prometheus.io/docs/introduction/overview/
+After=network-online.target
+
+[Service]
+EnvironmentFile=/etc/conf.d/prometheus
+User=prometheus
+Group=prometheus
+Restart=on-failure
+ExecStart=/usr/bin/prometheus --config.file=/etc/prometheus/prometheus.yml --storage.tsdb.path=/var/lib/prometheus/data $command_args
+
+[Install]
+WantedBy=multi-user.target