setup_argo_workflow.md

Setting up Argo Locally on existing Kubernetes Cluster

Create Argo Namespace

kubectl create namespace argo
kubectl get ns

Setup Argo Version and Install it

ARGO_WORKFLOWS_VERSION="v3.5.14"
kubectl apply -n argo -f "https://github.com/argoproj/argo-workflows/releases/download/${ARGO_WORKFLOWS_VERSION}/quick-start-minimal.yaml"

validate

kubectl get all -n argo 

Expose Argo Service on port 32400 as ,

kubectl patch svc argo-server -n argo --patch \
  '{"spec": { "type": "NodePort", "ports": [ { "nodePort": 32400, "port": 2746, "protocol": "TCP", "targetPort": 2746 } ] } }'

kubectl -n argo port-forward service/argo-server 2746:2746
 

validate

kubectl get svc -n argo

accesss the service now on http://IPADDDRESS:32400

setup rbac policies as

File argoworkflow_rbac.yaml

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: argo-workflows-clusterrole
rules:
  - apiGroups: [""]
    resources: ["pods", "pods/log"]
    verbs: ["get", "watch", "list", "create", "update", "patch", "delete"]
  - apiGroups: ["argoproj.io"]
    resources: ["workflows"]
    verbs: ["get", "watch", "list", "create", "update", "patch", "delete"]
  - apiGroups: ["events.k8s.io"]
    resources: ["events"]
    verbs: ["create", "patch"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: argo-workflows-clusterbinding
subjects:
  - kind: ServiceAccount
    name: argo   # Change this if using a different service account
    namespace: argo
  - kind: ServiceAccount
    name: default   # Change this if using a different service account
    namespace: default
roleRef:
  kind: ClusterRole
  name: argo-workflows-clusterrole  # Must match the ClusterRole name
  apiGroup: rbac.authorization.k8s.io

apply RBAC policy as

kubectl apply -f argoworkflow_rbac.yaml

switch to default namespace

kubectl config set-context  --current --namespace=default

Now you are ready to run the workflows