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In this tutorial we will learn about parsing JSON file with Go, nothing to worry about as we will try to keep this very simple, basic JSON parsing with Go we could say but we will provide enough information to familiarise yourself with Go structs, functions and a simple way of reading JSON files content. This example will contain two files, a JSON file called appinfo.json and a Golang file as well called main.go, file that will contain our application code. Many of you may find Golang confusing or maybe you are just starting now to code with Go which […]
Category: Golang | Published: 30/05/2019 | Updated: 19/07/2019Create 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: 10/01/2020Changing 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: 22/12/2019AWS Switch Role Setup is our next tutorial where we will explain how to setup IAM Policies and IAM Roles in order to switch between multiple AWS accounts without using various credentials for each individual account. Setting up Role Switching within AWS may seem difficult or maybe confusing but in reality this is quite simple and easy to implement. Such a solution will definitely ease your user management tasks and in the same time will give you the flexibility to manage users access in a more granular fashion. For this specific tutorial, which will be a very short one, we […]
Category: AWS | Published: 15/10/2019 | Updated: 15/10/2019Setup AlibabaCloud OSS on Windows VM
Setting up AlibabaCloud OSS on Windows VM (ECS) is our next tutorial where we will demonstrate how easy is to setup AlibabaCloud Object Storage Service on a Windows VM or Elastic Compute Service (ECS) how is the product called. AlibabaCloud may not be so popular outside China borders but we can say that is quite a major player on the cloud market, their offering is as good as Amazon AWS, Google Cloud Platform or Microsoft Azure but the only thing that makes AlibabaCloud appealing is the fact that currently is the only company that provides a full range of cloud […]
Category: AlibabaCloud | Published: 09/09/2019 | Updated: 24/09/2019AWS Lambda Function to Stop and Start EC2 Instances
AWS Lambda Function to Stop and Start EC2 Instances based on Tags is our next tutorial where we will guide you, step by step, how to save money on AWS monthly bill just by using a simple AWS Lambda Function backed up by a Python script. Nowadays most of the modern companies relies on many cloud technologies from various cloud providers like AWS for pretty much any environments and tiers that we can think of like production, QA, staging, development and so on but everything comes at a price. We can reduce our monthly AWS bill and also, indirectly, becoming […]
Category: AWS | Published: 21/08/2019 | Updated: 24/09/2019