added test for snmp

mackerel-plugin-snmp/rule.txt

@@ -0,0 +1,2 @@
+snmp.hrSystemNumUsers	>=0
+snmp.hrSystemProcesses	>=0

mackerel-plugin-snmp/test.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+
+prog=$(basename "$0")
+if ! [ -S /var/run/docker.sock ]
+then
+	echo "$prog: there are no running docker" >&2
+	exit 2
+fi
+
+cd "$(dirname "$0")" || exit
+PATH=$(pwd):$PATH
+plugin=$(basename "$(pwd)")
+if ! which "$plugin" >/dev/null
+then
+	echo "$prog: $plugin is not installed" >&2
+	exit 2
+fi
+
+image=local/test-$plugin
+# mackerel-plugin-snmp is disallowed --port option.
+port=161
+
+docker build -t $image testdata/
+
+docker run --name "test-$plugin" -v $(pwd)/testdata/snmpd.conf:/etc/snmp/snmpd.conf:ro -p $port:161/udp -d $image
+trap 'docker stop test-$plugin; docker rm test-$plugin; exit 1' 1 2 3 15
+sleep 10
+
+$plugin '.1.3.6.1.2.1.25.1.5.0:hrSystemNumUsers:0:0' '.1.3.6.1.2.1.25.1.6.0:hrSystemProcesses:0:0' | graphite-metric-test -f rule.txt
+status=$?
+
+docker stop "test-$plugin"
+docker rm "test-$plugin"
+exit $status

mackerel-plugin-snmp/testdata/Dockerfile

@@ -0,0 +1,8 @@
+FROM alpine:3.16
+
+RUN apk add --update net-snmp net-snmp-tools
+
+EXPOSE 161
+
+CMD ["snmpd", "-V", "-f", "-c", "/etc/snmp/snmpd.conf"]
+

mackerel-plugin-snmp/testdata/snmpd.conf

@@ -0,0 +1,4 @@
+view   systemonly  included   .1.3.6.1.2.1.1
+view   systemonly  included   .1.3.6.1.2.1.25.1
+
+rocommunity public  default    -V systemonly