c12s-kubespray/roles/kubernetes-apps/ansible/templates/dns-autoscaler.yml.j2

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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: apps/v1
kind: Deployment
metadata:
name: dns-autoscaler{{ coredns_ordinal_suffix }}
namespace: kube-system
labels:
k8s-app: dns-autoscaler{{ coredns_ordinal_suffix }}
addonmanager.kubernetes.io/mode: Reconcile
spec:
selector:
matchLabels:
k8s-app: dns-autoscaler{{ coredns_ordinal_suffix }}
template:
metadata:
labels:
k8s-app: dns-autoscaler{{ coredns_ordinal_suffix }}
annotations:
scheduler.alpha.kubernetes.io/critical-pod: ""
seccomp.security.alpha.kubernetes.io/pod: 'runtime/default'
spec:
priorityClassName: system-cluster-critical
securityContext:
supplementalGroups: [ 65534 ]
fsGroup: 65534
nodeSelector:
kubernetes.io/os: linux
tolerations:
- effect: NoSchedule
operator: Equal
key: node-role.kubernetes.io/master
- key: "CriticalAddonsOnly"
operator: "Exists"
affinity:
podAntiAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- topologyKey: "kubernetes.io/hostname"
labelSelector:
matchLabels:
k8s-app: dns-autoscaler{{ coredns_ordinal_suffix }}
nodeAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- weight: 100
preference:
matchExpressions:
- key: node-role.kubernetes.io/master
operator: In
values:
- ""
containers:
- name: autoscaler
image: "{{ dnsautoscaler_image_repo }}:{{ dnsautoscaler_image_tag }}"
resources:
requests:
cpu: {{ dns_autoscaler_cpu_requests }}
memory: {{ dns_autoscaler_memory_requests }}
command:
- /cluster-proportional-autoscaler
- --namespace=kube-system
- --default-params={"linear":{"preventSinglePointFailure":{{ dns_prevent_single_point_failure }},"coresPerReplica":{{ dns_cores_per_replica }},"nodesPerReplica":{{ dns_nodes_per_replica }},"min":{{ dns_min_replicas }}}}
- --logtostderr=true
- --v=2
- --configmap=dns-autoscaler{{ coredns_ordinal_suffix }}
- --target=Deployment/coredns{{ coredns_ordinal_suffix }}
serviceAccountName: dns-autoscaler