Argo CD - Declarative GitOps CD for Kubernetes
Yesterday, a friend asked me about tools to use for pipeline, and I suggested Argo CD, which is a declarative GitOps continuous delivery (CD) tool for Kubernetes. It enables developers to manage both infrastructure configuration and application updates in one system. Argo CD is built following the Kubernetes Operator Pattern, which means that it is a lightweight, reusable controller that can be used to manage any type of Kubernetes resource.
What is GitOps?
GitOps is a software development practice that uses Git as a single source of truth for all infrastructure and application configuration. This means that all changes to infrastructure and application state are made through Git commits and pull requests. Argo CD implements GitOps by continuously monitoring the desired state of an application in Git and the actual state of the application in Kubernetes. When the desired state and actual state differ, Argo CD automatically deploys the desired state to Kubernetes.
Benefits of using Argo CD
Argo CD offers a number of benefits over traditional CD tools, including:
Declarative approach: Argo CD uses a declarative approach to deployments, which means that developers only need to specify the desired state of their application in Git. Argo CD will then take care of deploying the application to Kubernetes and ensuring that it remains in the desired state.
Git as a single source of truth: Argo CD uses Git as a single source of truth for all infrastructure and application configuration. This makes it easy to track changes and roll back deployments if necessary.
Continuous deployment: Argo CD continuously monitors the desired state of an application in Git and the actual state of the application in Kubernetes. This allows for continuous deployment, which means that developers can deploy changes to their application to production with confidence.
Auditability: Argo CD tracks all changes to infrastructure and application configuration in Git. This makes it easy to audit changes and troubleshoot issues.
How to use Argo CD
To use Argo CD, you will first need to install it on your Kubernetes cluster. Once Argo CD is installed, you can create an Applicatinpm starte to Kubernetes.
Conclusion
Argo CD is a powerful GitOps CD tool that can help you to automate and simplify the deployment and management of your Kubernetes applications. If you are looking for a way to improve your DevOps workflow, Argo CD is a great option to consider.