first example of gitops-bridge

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

patterns/argocd/gitops-bridge/README.md

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+# ArgoCD on Amazon EKS
+
+This example shows how to deploy Amazon EKS with addons configured via ArgoCD
+
+Deploy EKS Cluster
+```shell
+terraform init
+terraform apply
+```
+
+Access Terraform output to configure `kubectl` and `argocd`
+```shell
+terraform output
+```
+
+Destroy EKS Cluster
+```shell
+cd hub
+./destroy.sh
+```

patterns/argocd/gitops-bridge/bootstrap/addons.yaml

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+apiVersion: argoproj.io/v1alpha1
+kind: ApplicationSet
+metadata:
+  name: bootstrap-addons
+  namespace: argocd
+spec:
+  syncPolicy:
+    preserveResourcesOnDeletion: true
+  generators:
+    - clusters:
+        selector:
+          matchExpressions:
+            - key: akuity.io/argo-cd-cluster-name
+              operator: NotIn
+              values: [in-cluster]
+  template:
+    metadata:
+      name: 'bootstrap-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
+          exclude: exclude/*
+      destination:
+        namespace: 'argocd'
+        name: '{{name}}'
+      syncPolicy:
+        automated: {}

patterns/argocd/gitops-bridge/bootstrap/workloads.yaml

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+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: bootstrap-workloads
+  namespace: 'argocd'
+  finalizers:
+  - resources-finalizer.argocd.argoproj.io
+spec:
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: 'guestbook'
+  project: default
+  source:
+    path: helm-guestbook
+    repoURL: https://github.com/argoproj/argocd-example-apps
+    targetRevision: HEAD
+  syncPolicy:
+    automated: {}
+    syncOptions:
+    - CreateNamespace=true

patterns/argocd/gitops-bridge/destroy.sh

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+#!/bin/bash
+
+set -x
+
+# Delete the Ingress/SVC before removing the addons
+TMPFILE=$(mktemp)
+terraform output -raw configure_kubectl > "$TMPFILE"
+source "$TMPFILE"
+
+kubectl delete svc -n argocd argo-cd-argocd-server
+
+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