17f07e2613
* Enable AutoScaler for CoreDNS * Only use one template for dns autoscaler * Rename a few variables for replicas and minimum pods * Rename a few variables for replicas and minimum pods * Remove replicas to make autoscale work * Cleanup kubedns-autoscaler as it has been renamed
76 lines
2.5 KiB
Django/Jinja
76 lines
2.5 KiB
Django/Jinja
---
|
|
# 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: dns-autoscaler
|
|
namespace: kube-system
|
|
labels:
|
|
k8s-app: dns-autoscaler
|
|
kubernetes.io/cluster-service: "true"
|
|
addonmanager.kubernetes.io/mode: Reconcile
|
|
spec:
|
|
template:
|
|
metadata:
|
|
labels:
|
|
k8s-app: dns-autoscaler
|
|
spec:
|
|
{% if kube_version is version('v1.11.1', '>=') %}
|
|
priorityClassName: system-cluster-critical
|
|
{% endif %}
|
|
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: dns-autoscaler
|
|
nodeAffinity:
|
|
preferredDuringSchedulingIgnoredDuringExecution:
|
|
- weight: 100
|
|
preference:
|
|
matchExpressions:
|
|
- key: node-role.kubernetes.io/master
|
|
operator: In
|
|
values:
|
|
- "true"
|
|
containers:
|
|
- name: autoscaler
|
|
image: "{{ dnsautoscaler_image_repo }}:{{ dnsautoscaler_image_tag }}"
|
|
resources:
|
|
requests:
|
|
cpu: "20m"
|
|
memory: "10Mi"
|
|
command:
|
|
- /cluster-proportional-autoscaler
|
|
- --namespace=kube-system
|
|
- --default-params={"linear":{"nodesPerReplica":{{ dns_nodes_per_replica }},"min":{{ dns_min_replicas }}}}
|
|
- --logtostderr=true
|
|
- --v=2
|
|
- --configmap=dns-autoscaler
|
|
{% if dns_mode in ['coredns', 'coredns_dual'] %}
|
|
- --target=Deployment/coredns{{ coredns_ordinal_suffix | default('') }}
|
|
{% endif %}
|
|
{% if dns_mode in ['kubedns', 'dnsmasq_kubedns'] %}
|
|
- --target=Deployment/kube-dns
|
|
{% endif %}
|
|
serviceAccountName: cluster-proportional-autoscaler
|