Installed a first Kubernetes cluster consisting of 1 master node and 1 worker node on CentOS 7. Kubernetes has version 1.6.2.
Kubernetes is not working with CentOS 8 yet so I have used the latest CentOS 7. Everything is installed on Oracle VM VirtualBox on a Windows 10 host.
Continue ReadingThe idea is to fully script the creation of a WordPress server including the database on CentOS 8 and Amazon Web Services. For this Ansible will be used. I will describe this in several steps/posts.
Step 1 Create the Linux server
Step 1 is to create the Linux server from a bastion host within AWS. For now we will use CentOS 7 because CentOS 8 is not availabe. Later it will be changed for CentOS 8.
To get some hands on experience with OpenShift I have installed OpenShift 4.1 on AWS using the defaults.
Continue ReadingIn order to gain some knowledge about Grafana, InfluxDB and Telegraf I did a basic installation. Grafana and InfluxDB were installed on a CentOS 7 server. The Telegraf agent was installed on a separate CentOS 7 server (which also hosts petersplanet.nl by the way).
Versions:
InfluxDB: 1.7.1
Grafana: 5.3.4-1
Telegraf: 1.8.3-1
Continue Reading
Although I had setup a daily cronjob for the certbot renew command it appeared that the automatic renewal did not work. It only worked interactively as root.
Continue Reading
I have created an Ansible script to automatically update WordPress on a server. In this case the Ansible script runs locally on that server.
Continue Reading
A few years ago I bought a Raspberry Pi but I never found time to experiment with the GPIO bus.
Continue Reading
If you buy cycling tyres with a width 25 mm this does not automatically mean they are exactly 25 mm or 25,4 mm (1 inch).
Continue Reading
If you want to experiment with servers and applications you will probably need your own test lab with virtual machines. The point is that you don’t want your test lab to interfere with your home network. This can be easily realised with Oracle VirtualBox and a network address translation network (NATNetwork) on a workstation.
Continue Reading
Some time ago I had reinstalled petersplanet.nl on a new CentOS 7 Linux server with the latest WordPress version. However when I tried to upload new content this was not possible anymore. The error message was that the uploaded file could not be moved to wp-content/uploads/2017/04.
Continue Reading