add service config files for Linux and Solaris

etc/ipmimex.defaults

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+# file: /etc/default/ipmimex
+
+# Any options to pass verbatim to the exporter. See 'ipmimex -h'.
+ARGS="-c "
+
+# For buggy DELLs:
+#ARGS="-c D"
+
+# For SUN ILOMs:
+#ARGS="-c N"
+
+# Compact as possible. Readings, only:
+#ARGS="-c PoDNUT"
+
+# Just Power now and overall scrapetime:
+#ARGS='-c -n version,ipmi,process -PS'
+
+# Check operational state e.g. via http://localhost:9290/metrics

etc/ipmimex.manifest

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+<?xml version="1.0"?>
+<!DOCTYPE service_bundle SYSTEM "/usr/share/lib/xml/dtd/service_bundle.dtd.1">
+<!--
+	file: /lib/svc/manifest/system/ipmimex.xml
+	Run  'svcadm restart manifest-import' to activate if you copied the file
+	to this location manually (i.e. not installed as part of a package).
+
+    Copyright 2022 Jens Elkner.
+-->
+
+<service_bundle type='manifest' name='LNFipmimex'>
+
+<service name='system/ipmimex' type='service' version='1'>
+
+	<create_default_instance enabled="false" />
+
+	<single_instance />
+
+	<!-- Wait for network interfaces to be initialized so we can bind.  -->
+	<dependency name='network' grouping='require_all' restart_on='refresh'
+	    type='service'>
+	    <service_fmri value='svc:/milestone/network:default'/>
+	</dependency>
+
+	<!-- Wait for all local filesystems to be mounted.  -->
+	<dependency name='filesystem-local' grouping='require_all' restart_on='none'
+	    type='service'>
+	    <service_fmri value='svc:/system/filesystem/local:default'/>
+	</dependency>
+
+	<!-- Start ipmimex before vmagent -->
+	<dependent name='vmagent' grouping='optional_all' restart_on='none'>
+		<service_fmri value='svc:/application/database/vmagent'/>
+	</dependent>
+
+	<exec_method type='method' name='start'
+		exec='/usr/sbin/ipmimex %{config/start_args} -d -l %{config/logfile} -p %{config/port}'
+		timeout_seconds='10'>
+		<method_context>
+			<!-- Who knows, why one needs sysconfig privs to be able to
+				query dcmi states. Someone had probably a bad day ....
+				user='webservd' group='webservd' should be ok, too.
+			-->
+			<method_credential user='daemon' group='daemon'
+				privileges='basic,sys_config,!proc_session,!proc_info,!file_link_any,{zone}:/var/log/ipmimex.log' />
+		</method_context>
+	</exec_method>
+
+	<exec_method timeout_seconds='5' type='method' name='stop'
+		exec=':kill -TERM' />
+
+	<property_group name='config' type='application'>
+		<stability value='Evolving' />
+		<!-- Check operational state e.g. via http://localhost:9290/metrics -->
+		<propval name='port' type='integer' value='9290' />
+		<propval name='logfile' type='astring' value='/var/log/ipmimex.log' />
+		<!-- Any options to pass verbatim to the agent. E.g. just power reading
+			and overall scrapetime use '-c -n version,ipmi,process -PS' or for
+			compact as possible, readings, only: '-c PoDNUT'
+		-->
+		<property name="start_args" type="astring">
+			<astring_list>
+				<value_node value='-c' />
+				<value_node value='-N' /><!-- fix for SUN ILOMs -->
+			</astring_list>
+		</property>
+	</property_group>
+
+	<property_group name='startd' type='framework'>
+		<!-- service mode is contract -->
+		<propval name='duration' type='astring' value='contract' />
+		<!-- sub-process core dumps shouldn't restart session -->
+		<propval name='ignore_error' type='astring' value='core,signal' />
+	</property_group>
+
+	<!--
+		Add all users, which should be able to manage this service
+		into /etc/user_attr . E.g.:
+		echo 'jdoe::::auths=solaris.smf.manage.ipmimex' >>/etc/user_attr
+	-->
+	<property_group name='general' type='framework'>
+		<propval name='action_authorization' type='astring'
+			value='solaris.smf.manage.ipmimex' />
+		<propval name='value_authorization' type='astring'
+			value='solaris.smf.manage.ipmimex' />
+	</property_group>
+
+	<stability value='Evolving' />
+
+	<template>
+		<common_name>
+			<loctext xml:lang='C'>
+				ipmiex - a metrics exporter for IPMI driven BMCs.
+			</loctext>
+		</common_name>
+		<documentation>
+			<manpage title='ipmimex' section='8' manpath='/usr/share/man' />
+			<doc_link name='github' uri='https://github.com/jelmd/ipmimex' />
+		</documentation>
+	</template>
+</service>
+
+</service_bundle>

etc/ipmimex.service

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+# file: /lib/systemd/system/ipmimex.service
+
+[Unit]
+Description=Metrics exporter for IPMI driven BMCs
+Documentation=man:ipmimex(8)
+After=network.target auditd.service
+Before=vmagent.service
+
+[Service]
+Type=forking
+User=daemon
+Group=daemon
+# The 'control-group' mode is absolutely unreliable at least on ubuntu 20.04.
+# So e.g. on start timeout spawned threads would not be killed and restart
+# would fail because the address/port is already in use.
+KillMode=mixed
+
+EnvironmentFile=-/etc/default/ipmimex
+LogsDirectory=ipmimex
+
+Restart=always
+RestartSec=1
+RestartPreventExitStatus=1 95 96 97 98 99 100 101 102
+# This allows us to run ipmimex as unprivileged service. One could accomplish
+# the same thing using a propper udev rule.
+ExecStartPre=+-/bin/chown daemon /dev/ipmi0
+ExecStart=/usr/sbin/ipmimex -l %L/ipmimex/out.log -d $ARGS
+ExecStop=/bin/kill -s SIGTERM $MAINPID
+TimeoutSec=10
+
+MemoryLow=2M
+MemoryMin=1M
+
+[Install]
+WantedBy=multi-user.target