🩺: add nsd plugin to munin

roles/munin_client/files/nsd

@@ -0,0 +1,127 @@
+#!/bin/sh
+
+: << =cut
+
+=head1 NAME
+
+nsd - Plugin to monitor nsd DNS server
+
+=head1 CONFIGURATION
+
+No configuration
+
+=head1 AUTHOR
+
+Kim Heino <b@bbbs.net>
+
+=head1 LICENSE
+
+GPLv2
+
+=head1 MAGIC MARKERS
+
+ #%# family=auto
+ #%# capabilities=autoconf
+
+=cut
+
+if [ "$1" = "autoconf" ]; then
+    if [ -x /usr/sbin/nsd-control ]; then
+        echo "yes"
+        exit 0
+    else
+        echo "no (no /usr/sbin/nsd-control)"
+        exit 0
+    fi
+fi
+
+if [ "$1" = "config" ]; then
+    echo 'graph_title NSD queries'
+    echo 'graph_vlabel queries / second'
+    echo 'graph_category dns'
+    echo 'graph_info Queries per second, by query type'
+    echo 'a.label A'
+    echo 'a.type DERIVE'
+    echo 'a.min 0'
+    echo 'aaaa.label AAAA'
+    echo 'aaaa.type DERIVE'
+    echo 'aaaa.min 0'
+    echo 'ptr.label PTR'
+    echo 'ptr.type DERIVE'
+    echo 'ptr.min 0'
+    echo 'cname.label CNAME'
+    echo 'cname.type DERIVE'
+    echo 'cname.min 0'
+    echo 'mx.label MX'
+    echo 'mx.type DERIVE'
+    echo 'mx.min 0'
+    echo 'txt.label TXT'
+    echo 'txt.type DERIVE'
+    echo 'txt.min 0'
+    echo 'soa.label SOA'
+    echo 'soa.type DERIVE'
+    echo 'soa.min 0'
+    echo 'ns.label NS'
+    echo 'ns.type DERIVE'
+    echo 'ns.min 0'
+    echo 'srv.label SRV'
+    echo 'srv.type DERIVE'
+    echo 'srv.min 0'
+    echo 'dnskey.label DNSKEY'
+    echo 'dnskey.type DERIVE'
+    echo 'dnskey.min 0'
+    echo 'axfr.label AXFR'
+    echo 'axfr.type DERIVE'
+    echo 'axfr.min 0'
+    echo 'snxd.label NXDOMAIN'
+    echo 'snxd.type DERIVE'
+    echo 'snxd.min 0'
+    echo 'rq.label Total Successful'
+    echo 'rq.type DERIVE'
+    echo 'rq.min 0'
+    exit 0
+fi
+
+/usr/sbin/nsd-control stats_noreset | sed 's/=/ /; s/\.//g' | (
+    numtypeA=0
+    numtypeAAAA=0
+    numtypePTR=0
+    numtypeCNAME=0
+    numtypeMX=0
+    numtypeTXT=0
+    numtypeSOA=0
+    numtypeNS=0
+    numtypeSRV=0
+    numtypeDNSKEY=0
+    numraxfr=0
+    numrcodeNXDOMAIN=0
+    numqueries=0
+    while read -r key value rest; do
+	[ "${key}" = "numtypeA" ] && numtypeA=${value}
+	[ "${key}" = "numtypeAAAA" ] && numtypeAAAA=${value}
+	[ "${key}" = "numtypePTR" ] && numtypePTR=${value}
+	[ "${key}" = "numtypeCNAME" ] && numtypeCNAME=${value}
+	[ "${key}" = "numtypeMX" ] && numtypeMX=${value}
+	[ "${key}" = "numtypeTXT" ] && numtypeTXT=${value}
+	[ "${key}" = "numtypeSOA" ] && numtypeSOA=${value}
+	[ "${key}" = "numtypeNS" ] && numtypeNS=${value}
+	[ "${key}" = "numtypeSRV" ] && numtypeSRV=${value}
+	[ "${key}" = "numtypeDNSKEY" ] && numtypeDNSKEY=${value}
+	[ "${key}" = "numraxfr" ] && numraxfr=${value}
+	[ "${key}" = "numrcodeNXDOMAIN" ] && numrcodeNXDOMAIN=${value}
+	[ "${key}" = "numqueries" ] && numqueries=${value}
+    done
+    echo "a.value ${numtypeA}"
+    echo "aaaa.value ${numtypeAAAA}"
+    echo "ptr.value ${numtypePTR}"
+    echo "cname.value ${numtypeCNAME}"
+    echo "mx.value ${numtypeMX}"
+    echo "txt.value ${numtypeTXT}"
+    echo "soa.value ${numtypeSOA}"
+    echo "ns.value ${numtypeNS}"
+    echo "srv.value ${numtypeSRV}"
+    echo "dnskey.value ${numtypeDNSKEY}"
+    echo "axfr.value ${numraxfr}"
+    echo "snxd.value ${numrcodeNXDOMAIN}"
+    echo "rq.value ${numqueries}"
+)

roles/munin_client/tasks/main.yml

@@ -120,3 +120,8 @@
 - name: Execute specific garage commands
   ansible.builtin.include_tasks: garage.yml
   when: "'garage1' in inventory_hostname"
+
+# Specific nsd commands
+- name: Execute specific nsd commands
+  ansible.builtin.include_tasks: nsd.yml
+  when: "'dns' in inventory_hostname"

roles/munin_client/tasks/nsd.yml

@@ -0,0 +1,21 @@
+---
+
+- name: Put nsd plugin configuration
+  ansible.builtin.template:
+    src: nsd.j2
+    dest: /etc/munin/plugin-conf.d/nsd
+    owner: root
+    group: root
+    mode: "0o640"
+  notify:
+    - Restart munin-node
+
+- name: Put nsd scripts
+  ansible.builtin.copy:
+    src: files/nsd
+    dest: /etc/munin/plugins/nsd
+    owner: root
+    group: root
+    mode: "0o755"
+  notify:
+    - Restart munin-node

roles/munin_client/templates/nsd.j2

@@ -0,0 +1,2 @@
+[nsd]
+user root