etcd backup manifests

deployment-s3-backup.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: etcd-operator-test
  namespace: kube-system
spec:
  replicas: 1
  template:
    metadata:
      labels:
        name: etcd-operator
    spec:
      containers:
      - name: etcd-operator
        image: quay.io/coreos/etcd-operator:v0.3.2
        command:
        - /usr/local/bin/etcd-operator
        - --backup-aws-secret=aws # assuming the configmap and secret are both named 'aws'
        - --backup-aws-config=aws
        - --backup-s3-bucket=tectonic-backup-test # replace the name of the S3 bucket that will store the backups
        env:
        - name: MY_POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        - name: MY_POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name

example-etcd-cluster-with-backup.yaml

apiVersion: "etcd.coreos.com/v1beta1"
kind: "Cluster"
metadata:
  name: "example-etcd-cluster-with-backup"
spec:
  size: 3
  version: "3.1.8"
  backup:
    # short snapshot interval for testing, do not use this in production!
    storageType: "S3"
    backupIntervalInSecond: 30
    maxBackups: 5
    s3:
      s3Bucket: tectonic-backup-test
      awsSecret: aws