helm-external-secrets/docs/snippets/aws-parameter-store.yaml

apiVersion: external-secrets.io/v1
kind: SecretStore
metadata:
  name: parameterstore
spec:
  provider:
    aws:
      service: ParameterStore
      # define a specific role to limit access
      # to certain secrets
      role: arn:aws:iam::123456789012:role/external-secrets
      region: eu-central-1
      auth:
        secretRef:
          accessKeyIDSecretRef:
            name: awssm-secret
            key: access-key
          secretAccessKeySecretRef:
            name: awssm-secret
            key: secret-access-key