flux2/manifests/integrations/registry-credentials-sync/aws/config-patches.yaml

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: credentials-sync
data:
  ECR_REGION: us-east-1  # set the region
  ECR_REGISTRY: <account id>.dkr.ecr.<region>.amazonaws.com  # fill in the account id and region
  KUBE_SECRET: ecr-credentials  # does not yet exist -- will be created in the same Namespace
  SYNC_PERIOD: "21600"  # 6hrs -- ECR tokens expire every 12 hours; refresh faster than that


# Bind IRSA for the ServiceAccount 
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: credentials-sync
  namespace: flux-system
  annotations:
    eks.amazonaws.com/role-arn: <role arn>  # set the ARN for your role


## If not using IRSA, set the AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environment variables
## Store these values in a Secret and load them in the container using envFrom.
## For managing this secret via GitOps, consider using SOPS or SealedSecrets and add that manifest in a resource file for this kustomize build.
##   https://fluxcd.io/flux/guides/mozilla-sops/
##   https://fluxcd.io/flux/guides/sealed-secrets/
# ---
# apiVersion: apps/v1
# kind: Deployment
# metadata:
#   name: credentials-sync
#   namespace: flux-system
# spec:
#   template:
#     spec:
#       containers:
#       - name: sync
#         envFrom:
#           secretRef:
#             name: $(ECR_SECRET_NAME)  # uncomment the var for this in kustomization.yaml