Release frequency keeps increasing and, with it, the need to get away from static environments like staging, integration, and other permanent setups. Dynamic environments based on pull requests are probably the best example of a need for a much higher level of dynamism. Kubernetes allows us to easily create whatever we need, and destroy what is not in use. There is no need for anything, especially not environments to be permanent, except for production. We can get far in that direction by combining GitOps practices and Argo CD in a way that each pull request (PR) creates a new environment that is destroyed when a PR is closed. By doing that, we can improve efficiency while, at the same time, reducing the costs.
Argo CD is a declarative GitOps deployment tool for Kubernetes.
It is one of the best, if not the best tool we have today to deploy applications inside Kubernetes clusters. It is based on GitOps principles, and it is a perfect fit to be a part of continuous delivery pipelines. It provides all the building blocks we might need if we would like to adopt GitOps principles for deployments and inject them inside the process of application lifecycle management.
Argo CD is a tool that helps us forget the existence of
helm install, and similar commands. It is a mechanism that allows us to focus on defining the desired state of our environments and pushing definitions to Git. It is up to Argo CD to figure out how to converge our desires into reality.