app-metrics/apache_exporter: new package, add 0.13.3

Signed-off-by: Federico Denkena <federico.denkena@posteo.de>

app-metrics/apache_exporter/files/apache_exporter.confd

@@ -0,0 +1,2 @@
+# arguments for prometheus apache exporter
+command_args=""

app-metrics/apache_exporter/files/apache_exporter.initd

@@ -0,0 +1,23 @@
+#!/sbin/openrc-run
+# Copyright 2016-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+description="Prometheus apache metrics exporter"
+pidfile=${pidfile:-"/run/${RC_SVCNAME}.pid"}
+user=${user:-${RC_SVCNAME}}
+group=${group:-${RC_SVCNAME}}
+
+command="/usr/bin/apache_exporter"
+command_args="${command_args:-}"
+command_background="true"
+start_stop_daemon_args="--user ${user} --group ${group} \
+	--stdout /var/log/apache_exporter/${RC_SVCNAME}.log \
+	--stderr /var/log/apache_exporter/${RC_SVCNAME}.log"
+
+depend() {
+	after net
+}
+
+start_pre() {
+	checkpath -q -d -m 0755 -o ${user}:${group} /var/log/apache_exporter
+}

app-metrics/apache_exporter/files/apache_exporter.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=Apache Exporter
+
+[Service]
+User=apache_exporter
+EnvironmentFile=/etc/sysconfig/apache_exporter
+ExecStart=/usr/bin/apache_exporter $OPTIONS
+
+[Install]
+WantedBy=multi-user.target

app-metrics/apache_exporter/files/sysconfig.apache_exporter

@@ -0,0 +1 @@
+OPTIONS=""