Docker, Kubernetes, and Co.

Prepare hosts

DNS Setup

root@master-node:~# cat /etc/hosts
127.0.0.1 localhost
192.168.2.201 master-node
192.168.2.202 slave-node1
192.168.2.203 slave-node2
192.168.2.204 slave-node3

# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Add kernel modules

root@master-node:~# cat 

Camunda on Oracle Cloud – will it work?

Subject

In this article, I describe how to install and run Camunda BPM engine on Oracle Cloud. I created this post as I had some spare hours between two jobs in winter 2020, then sort of forgot about it and …

Monitor bacula backup jobs with zabbix

Subject

There is an email notification mechanism built in into bacula out of the box. It really sends out email notification after each job.┬áThis works, but in the case a job is stuck and who reads emails after all?…

Opportunities, Tasks and ToDoist for SugarCRM — part I

Subject

When new Opportunity created or its status changed, new Task to be created and also new Task in ToDoist application to be created.
Optional: when Opportunity is closed, all open Tasks to be closed as well, also on ToDoist.

md raid and zabbix

Subject

In this article I explain how to setup Software RAID monitoring with zabbix. The solution will use two ways – active monitoring (polling) of an array status and passive traps for array events, sent out by the mdadm