As a developer or tech geek, when technology is part of your lifestyle or work, we definitely look forward to exploring all developer things. APIs & libraries are one of the important things we generally look for.
Why is it so? Because, when we use that specific technology on a daily basis, we definitely want to automate most of the things. For that, we try to explore its functional part just to make our work easy. We can use that functional part [ API/Library ], to make an automation script or application.
Kubernetes is one of the widely used orchestration tools for container application and container management. With a variety of features and options, it helps organizations remove manual intervention at every stage. With lots of requirements & scenarios, the user or any organization deals with lots of Kubernetes resources types options which leads to having proper knowledge of every Kubernetes resources type to fit specific or combination of resources with different scenarios that organizations generally require. To know more about different Kubernetes resource types, you can visit the official documentation provided by Kubernetes.
This blog will cover one of the Kubernetes resources which are only used for a specific use-case. There are multiple resources where we can leverage those resources at specific use-case, but for now, we are only focusing on DaemonSet which is very important and has a unique functionality that we cannot cover by using another pod controller.
When we talk about service mesh, consul is one of the open-source tools which is widely used as a service discovery for multiple ephemeral or non-ephemeral resources. There are multiple consuls [service mesh] alternatives which are used as a service discovery but we won’t be discussing service discovery & alternative comparisons here.
If we talk about consul, it is not only used as a service mesh but also provides multiple options and features other than a service mesh. Yes, you heard it right, this lad can do lots of things that we didn’t know or haven’t explored yet.
Let’s talk about some of the options or features provided by the consul and further, we will discuss some of the aspects and impact of things provided by the consul.
But Why Json ?
We generally think JSON means data provided general output from any API. But, if we talk about any technology, JSON is a very common programming language or we can say format, which is used as the output format of any resource. While using DevOps tools like Docker, Ansible, or any other tool, we generally get the output in JSON format when we use any output command like Docker inspect or Ansible facts gather.
During this lockdown period, people are usually working from home which means they all are contributing to work by staying at home. So, if someone wants to work on something online, such as on a particular private or public server of a company, depending on the scenario, will need a network route to that server.
Meaning, they first need access to that particular server either via a public network or using VPN. These things have their own set of complexities. Therefore, we will discuss a few aspects of network access & their drawbacks: