Install Argo CD

ArgoCD Architecture

ArgoCD Architecture

ArgoCD is composed of three mains components:

API Server: Exposes the API for the WebUI / CLI / CICD Systems

Repository Server: Internal service which maintains a local cache of the git repository holding the application manifests

Application Controller: Kubernetes controller which controls and monitors applications continuously and compares that current live state with desired target state (specified in the repository). If a OutOfSync is detected, it will take corrective actions.

Install Argo CD

All those components could be installed using a manifest provided by the Argo Project:

kubectl create namespace argocd
kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/v2.4.7/manifests/install.yaml

Install Argo CD CLI

To interact with the API Server we need to deploy the CLI:

sudo curl --silent --location -o /usr/local/bin/argocd https://github.com/argoproj/argo-cd/releases/download/v2.4.7/argocd-linux-amd64

sudo chmod +x /usr/local/bin/argocd