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---
# Copyright 2016 The Kubernetes Authors.
#
# 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.
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: kubedns-autoscaler
namespace: kube-system
labels:
k8s-app: kubedns-autoscaler
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
spec:
template:
metadata:
labels:
k8s-app: kubedns-autoscaler
spec:
{% if kube_version is version('v1.11.1', '>=') %}
priorityClassName: system-cluster-critical
{% endif %}
# When having win nodes in cluster without this patch, this pod cloud try to be created in windows
nodeSelector:
beta.kubernetes.io/os: linux
tolerations:
- effect: NoSchedule
operator: Equal
key: node-role.kubernetes.io/master
affinity:
podAntiAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- topologyKey: "kubernetes.io/hostname"
labelSelector:
matchLabels:
k8s-app: kubedns-autoscaler
nodeAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- weight: 100
preference:
matchExpressions:
- key: node-role.kubernetes.io/master
operator: In
values:
- "true"
containers:
- name: autoscaler
image: "{{ kubednsautoscaler_image_repo }}:{{ kubednsautoscaler_image_tag }}"
resources:
requests:
cpu: "20m"
memory: "10Mi"
command:
- /cluster-proportional-autoscaler
- --namespace=kube-system
- --configmap=kubedns-autoscaler
# Should keep target in sync with cluster/addons/dns/kubedns-controller.yaml.base
- --target=Deployment/kube-dns
- --default-params={"linear":{"nodesPerReplica":{{ kubedns_nodes_per_replica }},"min":{{ kubedns_min_replicas }}}}
- --logtostderr=true
- --v=2
serviceAccountName: cluster-proportional-autoscaler