Found 11 results
Create CoreOS Container Linux Ignition File
With all recent changes within CoreOS’s Container Linux distribution one of the most notable change is related to the Ignition file, basically this file handles the configuration for any Container Linux installation and we can say that it is pretty powerful. The concept behind this is somehow simple but as we have already said, quite powerful, allowing the users to configure the operating system right from the start with all basic and advanced settings needed. In this short tutorial we will cover the basics of how to create a simple .yaml CoreOS Container Linux ignition config file and how to […]
Category: General | Published: 10/01/2020 | Updated: 10/01/2020Setup NFS Server and NFS Client on CentOS 7
In this tutorial we will learn how to set up NSF Server and NFS Client on CentOS 7 operating system, setting up or managing a NFS server or a NFS client is not quite a complex task at all, we’ll do our best to explain this entire process in the most simple possible way. We can use the set up from this tutorial for various small network sharing applications like setting up a backup server or maybe a simple file server etc., either way NFS package is always a good candidate to start with. Network File System (NFS) has been […]
Category: General | Published: 17/07/2018 | Updated: 26/08/2019Setup a Private Docker Registry
Setting up a private Docker registry locally for our organisation or maybe for personal use can be seen as a must if we don’t want to expose publicly our custom Docker images. It is true that we can easily get a private repository if we would go for a paid subscription to one of the providers available out there on the market that are offering such services, but why doing so when we can simply do it by ourselves, internally, completely isolated and being under our control. Having a private Docker repository / registry will give us the ability to […]
Category: Docker | Published: 20/12/2019 | Updated: 31/12/2019Changing Kubernetes Pods CIDR (Classless Inter-Domain Routing) is our next tutorial where we will learn in just a few easy steps how to change the network mask / range for our Kubernetes environment. Kubernetes is considered one of the most mature and stable platform for Docker orchestration – at the time of writing this tutorial -, being used in production environments by many big names from the tech industry. Mastering Kubernetes is not an easy task, it really takes time and require a lot of practice, it is well known of having a not so easy learning curve. Here, in […]
Category: Kubernetes | Published: 19/12/2019 | Updated: 22/12/2019CoreOS static IP address configuration it is quite straight forward even though when we build a CoreOS cluster, DHCP should always be the standard setup. CoreOS has been cleverly designed to discover all new nodes that are joining in the same the network – with some extra configuration – but, in some cases, for various reasons, DHCP may not be an option and that is why in this short tutorial we will be showing you how to set up a static IP address on CoreOS by using a basic example. The solution for setting up a static IP is not […]
Category: General | Published: 05/12/2019 | Updated: 06/12/2019Kubernetes Cluster setup on CentOS
Kubernetes Cluster setup on CentOS isn’t that difficult anymore as it used to be in the past where we had to perform some major OS changes in order to build a proper environment. In this short tutorial we will guide you step by step how to actually set up a simple Kubernetes Cluster based on CentOS 7.5 and Kubernetes 1.12.1. Exactly like any other cluster a Kubernetes Cluster must always have an odd number of nodes like 3, 5, 7 and so on but in this particular tutorial we will resume to use only 3 nodes, one master node and […]
Category: Docker | Published: 23/10/2018 | Updated: 02/10/2019