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I Declare Defeat - Mount NFS in Docker

October 20, 2020Category: IT
Today I've tried to mount a NFS into a docker volume via the following means: Mount the NFS on the host and create a docker volume using the absolute path Create a docker volume via NFS Both variants have failed miserably, in hte sense that I could get the docker container to "see" it, but read-only…

Mount a shared NFS from TrueNAS on CentOS

October 17, 2020Category: IT
On the setup of my house, I've decided that configuration files should be stored on the NAS. For this, the idea is that the NAS would have a share (say "config" )which would be mounted on the other machines. Each application would then have its own directory in that config, so they don't overlap…

Setup CentOS 8 Machines - Common stuff

October 17, 2020Category: IT
Prerequisites Install CentOS Enable the network Initial configuration Install Open VM Tools Install VMWare tools (obsolete) Set up Docker repository I have started (again) preparing the machines for the house. Now, I've decided to use CentOS . In this article, I will go through the steps of setting…

Setup Ansible on CentOS 8

October 17, 2020Category: IT
Today I've started to set up my ESXI CentOS hosts. I wanted to automate everything, including the ansible installation, but I figured it's much easier to write up the commands. Preparation Unfortunately, Ansible is not a pure CentOS package, but EPEL (Extra Packages for Enterprise Linux). So…

Set up MacOS on ESXi

April 25, 2020Category: IT
I've decided to use Ansible to set up a virtual VM with MacOS. I used to have a mac or two, but my hardware is obsolete now (Intel core 2 duo, anyone?) and I can't justify paying a couple of thousand Euros every few years for what practically amounts to renting machines. I've got a while ago a…

My Ansible References

April 15, 2020Category: IT
I've had it with setting up things manually. I've always said I'll automate everything so I make my live easier, but the progress on adding FreeNas jails and configuring them was soo much fun.. Now' I've decided to stop and step back a bit. I have already began dabbing with Ansible, but this time…

Copy Files From B to C via A with SSH

May 24, 2018Category: IT
The other day I had an interesting situation to solve: I have some data on machine B and I want it copied on machine C . However, machines B and C have no direct connection ( known_hosts ), but machine A can connect to B and C without password. It is obvious that one needs to use…

Fix Jenkins POM Freezer "Wrong Relative POM" Error

October 31, 2017Categories: IT, Tutorial
If you get a build error in Jenkins like: Then you have a POM freezing issue with the parent POM. I.e., the Jenkins plugin has failed to freeze the POM version from a 1.0-SNAPSHOT to an actual 1.0-6034-79 . A cause can be the plugin expects a certain sequence of tags in the POM and doesn't find…

Clean Up Your Zookeeper History

October 31, 2017Category: IT
TL;DR: Use -n 5 command: By default, Zookeeper does not delete any of its history to allow recovery. This however can lead to disk space issues over long-ish periods of time. Therefore, it is advisable to clean up once in a while. Update: I found out that /usr/share/zookeeper/bin…

Smart-Monitor your Site via e.g. Pingdom

June 20, 2014Category: IT
I use pingdom to check if one of my sites is up and running, getting an email if the root index.html page doesn't behave. I just read the single most interesting piece to use pingdom to check your whole site: I recommend creating an internal status page which automatically checks all the…

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