zabbix-agent: Add mysql config for mysql checks

Template only for now. Deployed manually on luna, not yet integrated
with apollo.

Signed-off-by: Florian Pritz <bluewind@xinu.at>

roles/zabbix-agent/tasks/main.yml

@@ -16,6 +16,10 @@
   notify:
     - restart zabbix agent
 
+- name: Create mysql config for agent checks
+  template: src=my.cnf.j2 dest=/etc/zabbix/zabbix_agentd.my.cnf owner=zabbix-agent group=zabbix-agent mode=600
+  when: zabbix_agent_mysql_user is defined
+
 - name: run zabbix agent service
   service: name=zabbix-agent enabled=yes state=started
 

roles/zabbix-agent/templates/my.cnf.j2

+[client]
+user={{zabbix_agent_mysql_user}}
+password={{zabbix_agent_mysql_password}}

roles/zabbix-agent/templates/zabbix_agentd.conf

@@ -9,9 +9,9 @@ TLSAccept=psk
 TLSPSKIdentity=PSK{{ansible_hostname|lower}}
 TLSPSKFile=/etc/zabbix/zabbix_agentd.psk
 
-UserParameter=mysql.ping,mysqladmin ping|grep alive|wc -l
-UserParameter=mysql.version,mysql -V
-UserParameter=mysql.status[*],echo "show global status where Variable_name='$1';" | mysql -N | awk '{print $$2}'
+UserParameter=mysql.ping,mysqladmin --defaults-file="/etc/zabbix/zabbix_agentd.my.cnf" ping|grep alive|wc -l
+UserParameter=mysql.version,mysql --defaults-file="/etc/zabbix/zabbix_agentd.my.cnf" -V
+UserParameter=mysql.status[*],echo "show global status where Variable_name='$1';" | mysql --defaults-file="/etc/zabbix/zabbix_agentd.my.cnf" -N | awk '{print $$2}'
 
 UserParameter=systemd.unit.is-active[*],systemctl is-active --quiet '$1' && echo 1 || echo 0
 UserParameter=systemd.unit.is-failed[*],systemctl is-failed --quiet '$1' && echo 1 || echo 0