Hundreds of Clusters Sitting in a Tree with Argo CD Demo Repository

Demo repository for the code for the "Hundreds of Clusters Sitting in a Tree with Argo CD" talk at GitOpsCon NA 2022.

WARNING!!!

WARNING: Thar BE SERIOUS dragons here...

If you leave the PR generator running on a public repo, someone could apply apply things onto your cluster that you don't want installed. DO NOT DO THIS!

Create the needed namespaces

kubectl create ns argocd
kubectl create ns argo
kubectl create ns argo-events
kubectl create ns vcluster

Install Argo CD

kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
export ARGOCD_OPTS='--port-forward --port-forward-namespace argocd'
kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d; echo
argocd login
argocd account update-password

Install Argo Workflows

kubectl apply -n argo -f https://raw.githubusercontent.com/argoproj/argo-workflows/stable/manifests/install.yaml
kubectl patch deployment \
  argo-server \
  --namespace argo \
  --type='json' \
  -p='[{"op": "replace", "path": "/spec/template/spec/containers/0/args", "value": [
  "server",
  "--auth-mode=server"
]}]'

Install Argo Events

kubectl apply -f https://raw.githubusercontent.com/argoproj/argo-events/stable/manifests/install.yaml
kubectl apply -f https://raw.githubusercontent.com/argoproj/argo-events/stable/manifests/install-validating-webhook.yaml
kubectl apply -n argo-events -f https://raw.githubusercontent.com/argoproj/argo-events/stable/examples/eventbus/native.yaml

Add the Argo CD Password to the argo namespace

NOTE: This really should use an account other than admin for security purposes!!

kubectl create secret generic argocd-login --from-literal=password=THE_ARGOCD_PASSWORD_FROM_ABOVE --from-literal=username=admin -n argo

Apply the Application and ApplicationSet to Argo CD

Be sure to modify the repo names inside the argocd/*.yaml to point to your repository then apply it to Argo CD.

kubectl apply -n argocd -R -f argocd/

vitormazzi/hundreds-of-clusters-demo