# This YAML file shows how to deploy the snapshot controller

# The snapshot controller implements the control loop for CSI snapshot functionality.
# It should be installed as part of the base Kubernetes distribution in an appropriate
# namespace for components implementing base system functionality. For installing with
# Vanilla Kubernetes, kube-system makes sense for the namespace.

---
kind: Deployment
apiVersion: apps/v1
metadata:
  name: snapshot-controller
  namespace: kube-system
spec:
  replicas: 2
  selector:
    matchLabels:
      app: snapshot-controller
  # the snapshot controller won't be marked as ready if the v1 CRDs are unavailable
  # in #504 the snapshot-controller will exit after around 7.5 seconds if it
  # can't find the v1 CRDs so this value should be greater than that
  minReadySeconds: 15
  strategy:
    rollingUpdate:
      maxSurge: 0
      maxUnavailable: 1
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: snapshot-controller
    spec:
      serviceAccount: snapshot-controller
      containers:
        - name: snapshot-controller
          # TODO GG: Replace w/ v5.0.0 once released
          # https://github.com/kubernetes-csi/external-snapshotter/issues/610
          image: gcr.io/k8s-staging-sig-storage/snapshot-controller:v5.0.0-rc1
          args:
            - "--v=5"
            - "--leader-election=true"
          imagePullPolicy: IfNotPresent