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README-argocd.md

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Install and configure ArgoCD in the hub cluster and Argo Rollouts in both cluster-1 and cluster-2 clusters.

export CTX_CLUSTER1=k8s-1-admin@k8s-1
export CTX_CLUSTER2=k8s-2-admin@k8s-2
export CTX_CLUSTERHUB=k8s-hub-admin@k8s-hub

ArgoCD: Hub Cluster

First, install ArgoCD in the hub cluster:

kubectl --context="${CTX_CLUSTERHUB}" create namespace argocd
kubectl --context="${CTX_CLUSTERHUB}" apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml

Expose Argo Server:

kubectl patch svc argocd-server -n argocd -p '{"spec": {"type": "LoadBalancer"}}'

Login using Argo CLI:

argocd admin initial-password -n argocd
ARGOHUB=$(oc get svc argocd-server -n argocd -o json | jq -r .status.loadBalancer.ingress\[\].ip)
argocd login $ARGOHUB --insecure

Register both workloads clusters in ArgoCD:

argocd cluster add $CTX_CLUSTER1 --label name=k8s-1 --label workloadcluster=true --name k8s-1
argocd cluster add $CTX_CLUSTER2 --label name=k8s-2 --label workloadcluster=true --name k8s-2