# Copyright 2020 The Kubernetes Authors All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# The purpose of the PodDisruptionBudget here is to never allow evicting pods created by prow.
# Eviction of pods can happen for one of two reasons:
# * Cluster autoscaler downscaling
# * Someome/Something using `kubectl drain`
#
# It is still possible to delete the pods via a normal delete call. See https://kubernetes.io/docs/tasks/administer-cluster/safely-drain-node/#the-eviction-api

apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: prow-pods
spec:
  maxUnavailable: 0
  selector:
    matchLabels:
      created-by-prow: "true"