argocd update

argocd-tutorial/README.md

@@ -1,3 +1,82 @@
+# ArgoCD Tutorial
+We start taking a look at CI-CD, especially the CD part with the free and open-source Argo CD. In this video, we will automate the deployment of a Nginx Web server on my Kubernetes Cluster. 
+
+We will use the free and open-source software ArgoCD.
+
+Project Homepage: https://argoproj.github.io/cd/
+Documentation: https://argo-cd.readthedocs.io/en/stable/
+
+Video: https://youtu.be/Yb3_4PZX0B0
+
+## Prerequisites
+
+- Kubernetes Cluster running k3s (v1.23.6 or newer)
+- Traefik (v2.5 or newer), Cert-Manager with ClusterIssuer configured
+- Kubectl configured
+- Public Git Repository on GitHub
+
+*You can still use ArgoCD on other Kubernetes Clusteres like AKS, EKS, GKE, etc. and other Git services, however, this is out-of-scope of this Tutorial!* 
+
+## Install and configure ArgoCD
+
+### Install ArgoCD on Kubernetes
+
+Create a new namespace `argocd` and deploy ArgoCD with the web UI included.
+
+```bash
+kubectl create namespace argocd
+kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
 ```
+
+### Expose ArgoCD with Traefik
+
+Create a new IngressRoute object, follow the template described in `traefik-ingressroute.yml`.
+
+### Disable internal TLS
+
+First, to avoid internal redirection loops from HTTP to HTTPS, the API server should be run with TLS disabled.
+
+Edit the --insecure flag in the argocd-server command of the argocd-server deployment.
+
+```bash
+kubectl -n argocd edit deployment.apps argocd-server
+```
+
+Change the container command from:
+```yml
+    ...
+    containers:
+    - command:
+      - argocd-server
+      - --staticassets
+      - /shared/app
+    ...
+```
+
+To:
+```yml
+    ...
+    containers:
+    - command:
+      - argocd-server
+      - --insecure
+      - --staticassets
+      - /shared/app
+    ...
+```
+
+### Log in to the ArgoCD web interface
+
+Log in to the ArgoCD web interface `https://<your-dns-record>/` by using the default username `admin` and the password, collected by the following command.
+
+```bash
 kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d
-```
+```
+
+## Add a Git Repository
+
+Add your Git Repository in the **Settings -> Repositories** menu.
+
+## Create an Application in ArgoCD
+
+Create an Application in ArgoCD to deploy your Git Repository in Kubernetes