add argo workflow

Signed-off-by: Carlos Santana <[email protected]>

Author: csantanapr

argocd/iac/terraform/examples/eks/argo-workflows/README.md

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+# AWS Secret Manager for ArgoCD Admin Password
+
+Example on how to deploy Amazon EKS with addons configured via ArgoCD.
+In this example we show how to deploy Argo Workflows
+
+## Prerequisites
+Before you begin, make sure you have the following command line tools installed:
+- git
+- terraform
+- kubectl
+- argocd (brew install argocd)
+- argo (brew install argo)
+
+## Fork the Git Repositories
+
+### Fork the Addon GitOps Repo
+1. Fork the git repository for addons [here](https://github.com/gitops-bridge-dev/gitops-bridge-argocd-control-plane-template).
+2. Update the following environment variables to point to your fork by changing the default values:
+```shell
+export TF_VAR_gitops_addons_org=https://github.com/gitops-bridge-dev
+export TF_VAR_gitops_addons_repo=gitops-bridge-argocd-control-plane-template
+```
+
+## Deploy the EKS Cluster
+Initialize Terraform and deploy the EKS cluster:
+```shell
+terraform init
+terraform apply -auto-approve
+```
+Retrieve `kubectl` config, then execute the output command:
+```shell
+terraform output -raw configure_kubectl
+```
+
+### Monitor GitOps Progress for Addons
+Wait until all the ArgoCD applications' `HEALTH STATUS` is `Healthy`. Use Crl+C to exit the `watch` command
+```shell
+watch kubectl get applications -n argocd
+```
+
+## Use Argo Workflows
+Make sure you have kubectl/KUBECONFIG setup by usind the output of `terraform output -raw configure_kubectl`
+Run a workflow in the `default` namespace using the service account created by the argo-workflow helm chart addon
+```shell
+argo submit -n default --serviceaccount argo-workflow https://raw.githubusercontent.com/argoproj/argo-workflows/main/examples/hello-world.yaml
+```
+Check the status of the workflow
+```shell
+argo list
+```
+Expected output:
+```
+NAME                STATUS      AGE   DURATION   PRIORITY   MESSAGE
+hello-world-zvczz   Succeeded   59s   10s        0
+```
+Get the output of the workflow
+```shell
+argo logs @latest
+```
+Expected output:
+```
+hello-world-zvczz:  _____________
+hello-world-zvczz: < hello world >
+hello-world-zvczz:  -------------
+hello-world-zvczz:     \
+hello-world-zvczz:      \
+hello-world-zvczz:       \
+hello-world-zvczz:                     ##        .
+hello-world-zvczz:               ## ## ##       ==
+hello-world-zvczz:            ## ## ## ##      ===
+hello-world-zvczz:        /""""""""""""""""___/ ===
+hello-world-zvczz:   ~~~ {~~ ~~~~ ~~~ ~~~~ ~~ ~ /  ===- ~~~
+hello-world-zvczz:        \______ o          __/
+hello-world-zvczz:         \    \        __/
+hello-world-zvczz:           \____\______/
+hello-world-zvczz: time="2024-01-23T20:32:24.174Z" level=info msg="sub-process exited" argo=true error="<nil>"
+```
+Use the Argo Workflow UI, use port-forward, and open url http://localhost:8080
+```shell
+kubectl port-forward -n argo-workflows svc/argo-workflows-server 8080:2746
+```
+Get authentication token using argo cli
+```shell
+argo auth token
+```
+
+
+## Access ArgoCD
+Access ArgoCD's UI, run the command from the output:
+```shell
+terraform output -raw access_argocd
+```
+
+Destroy EKS Cluster
+```shell
+cd hub
+./destroy.sh
+```

argocd/iac/terraform/examples/eks/argo-workflows/bootstrap/addons.yaml

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+apiVersion: argoproj.io/v1alpha1
+kind: ApplicationSet
+metadata:
+  name: cluster-addons
+  namespace: argocd
+spec:
+  syncPolicy:
+    preserveResourcesOnDeletion: true
+  generators:
+    - clusters: {}
+  template:
+    metadata:
+      name: cluster-addons
+    spec:
+      project: default
+      source:
+        repoURL: '{{metadata.annotations.addons_repo_url}}'
+        path: '{{metadata.annotations.addons_repo_basepath}}{{metadata.annotations.addons_repo_path}}'
+        targetRevision: '{{metadata.annotations.addons_repo_revision}}'
+        directory:
+          recurse: true
+      destination:
+        namespace: argocd
+        name: '{{name}}'
+      syncPolicy:
+        automated: {}

argocd/iac/terraform/examples/eks/argo-workflows/destroy.sh

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+#!/bin/bash
+
+set -uo pipefail
+
+SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+ROOTDIR="$(cd ${SCRIPTDIR}/../..; pwd )"
+[[ -n "${DEBUG:-}" ]] && set -x
+
+# Delete the Ingress/SVC before removing the addons
+TMPFILE=$(mktemp)
+terraform -chdir=$SCRIPTDIR output -raw configure_kubectl > "$TMPFILE"
+# check if TMPFILE contains the string "No outputs found"
+if [[ ! $(cat $TMPFILE) == *"No outputs found"* ]]; then
+  source "$TMPFILE"
+  kubectl delete -n argocd applicationset workloads
+  kubectl delete -n argocd applicationset cluster-addons
+  kubectl delete -n argocd applicationset addons-aws-argo-workflows-ingress
+  kubectl delete -n argo-workflows ing --all
+fi
+
+terraform destroy -target="module.gitops_bridge_bootstrap" -auto-approve
+terraform destroy -target="module.eks_blueprints_addons" -auto-approve
+terraform destroy -target="module.eks" -auto-approve
+terraform destroy -target="module.vpc" -auto-approve
+terraform destroy -auto-approve