Install and Configure ArgoCD

A kubernetes cluster to install and configure ArgoCD

Install ArgoCD

# Non HA installation
kubectl create namespace argocd
kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/v2.11.0/manifests/install.yaml

# HA installation
kubectl create namespace argocd
kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/v2.11.0/manifests/ha/install.yaml

Get the password

# Get all the secrets in argocd namespace
kubectl get secrets -n argocd

# Get the password from the secret file
kubectl get secret -n argocd argocd-initial-admin-secret -o yaml > initial_admin.yaml

cat initial_admin.yaml

apiVersion: v1
data:
  password: NU9KUHdFOUVFcmt5eFJtQQ==
kind: Secret
metadata:
  creationTimestamp: "2023-07-11T00:58:04Z"
  name: argocd-initial-admin-secret
  namespace: argocd
  resourceVersion: "54536"
  uid: de62ff7c-d47a-45f6-92f9-b9a5181e51ed
type: Opaque

# Copy the password and decode it
echo -n 'NU9KUHdFOUVFcmt5eFJtQQ==' | base64 --decode

5OJPwE9EErkyxRmA

Expose the service using nodePort

# List all the services in the argocd namespace
kubectl get svc -n argocd

# Edit the service and change the service type from ClusterIP to NodePort
kubectl edit -n svc argocd argocd-server

# Edit at the bottom of the file
ports:
  - name: http
    nodePort: 32399
    port: 80
    protocol: TCP
    targetPort: 8080
  - name: https
    nodePort: 32400
    port: 443
    protocol: TCP
    targetPort: 8080
  selector:
    app.kubernetes.io/name: argocd-server
  sessionAffinity: None
  type: NodePort

Login to the UI

# Login to the UI using url

http://<workernode_ip>:32400

Download the ArgoCD CLI

# ArgoCD cli resources
https://github.com/argoproj/argo-cd/releases/latest

# For linux based OS I use below link to download
wget https://github.com/argoproj/argo-cd/releases/download/v2.11.0/argocd-linux-amd64
sudo install -m 555 argocd-linux-amd64 /usr/local/bin/argocd
rm argocd-linux-amd64

# Ue below link to download onto Wn 11
https://github.com/argoproj/argo-cd/releases/download/v2.11.0/argocd-windows-amd64.exe