LUKI NOTES

If you haven't heard of  the twelve-factor app , it gives us a recommendation or a methodology for developing SaaS or web apps structured into twelve items. The recommendation has some connections with microservice architecture and cloud-native environments which become more popular today. We can learn the details on its website . In this post, we will do a quick review of the twelve points. One Codebase Multiple Deployment We should maintain only one codebase for our application even though the application may be deployed into multiple environments like development, staging, and production. Having multiple codebases will lead to any kinds of complicated issues. Explicitly State Dependencies All the dependencies for running our application should be stated in the project itself. Many programming languages have a kind of file that maintains a list of the dependencies like package.json in Node.js. We should also be aware of the dependencies related to the pla...

There are several tools and services in the market that we can use to deploy and manage Kubernetes clusters. Some tools allow us to self-manage the cluster without charge, some require us to subscribe for the license, and some services are provided as a Kubernetes as a Service such as Amazon EKS and Red Hat OpenShift Dedicated. For development purposes or small-scale service, there is a free tool to manage Kubernetes clusters named minikube which is available for Windows, Linux, and MacOS. To build the cluster, Minikube supports several virtualization technologies such as Hypervisor, KVM, Docker, and so on. In this writing, we will try to utilize Docker as the virtualization solution and run it in Ubuntu 22.04. In general, we will run through the following steps. Install Minikube Install Docker Allow a non-root user to access Docker Start Minikube Enable Ingress extension Install Kubectl Install Minikube First, we need to install Minikube's depen...