5f12b7aedf
Both kubedns and dnsmasq modes are long not maintained. We should run dns_late steps at the end because sshd makes DNS lookups during Ansible run and has 2s timeouts for each failed lookup trying to connect to coredns before it is ready.
80 lines
2.8 KiB
Django/Jinja
80 lines
2.8 KiB
Django/Jinja
---
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# Copyright 2016 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: dns-autoscaler{{ coredns_ordinal_suffix }}
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namespace: kube-system
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labels:
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k8s-app: dns-autoscaler{{ coredns_ordinal_suffix }}
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kubernetes.io/cluster-service: "true"
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addonmanager.kubernetes.io/mode: Reconcile
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spec:
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selector:
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matchLabels:
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k8s-app: dns-autoscaler{{ coredns_ordinal_suffix }}
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template:
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metadata:
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labels:
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k8s-app: dns-autoscaler{{ coredns_ordinal_suffix }}
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annotations:
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seccomp.security.alpha.kubernetes.io/pod: 'docker/default'
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spec:
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{% if kube_version is version('v1.11.1', '>=') %}
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priorityClassName: system-cluster-critical
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{% endif %}
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nodeSelector:
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beta.kubernetes.io/os: linux
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tolerations:
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- effect: NoSchedule
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operator: Equal
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key: node-role.kubernetes.io/master
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affinity:
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podAntiAffinity:
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requiredDuringSchedulingIgnoredDuringExecution:
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- topologyKey: "kubernetes.io/hostname"
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labelSelector:
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matchLabels:
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k8s-app: dns-autoscaler{{ coredns_ordinal_suffix }}
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nodeAffinity:
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preferredDuringSchedulingIgnoredDuringExecution:
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- weight: 100
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preference:
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matchExpressions:
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- key: node-role.kubernetes.io/master
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operator: In
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values:
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- ""
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containers:
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- name: autoscaler
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image: "{{ dnsautoscaler_image_repo }}:{{ dnsautoscaler_image_tag }}"
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resources:
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requests:
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cpu: "20m"
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memory: "10Mi"
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command:
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- /cluster-proportional-autoscaler
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- --namespace=kube-system
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- --default-params={"linear":{"preventSinglePointFailure":{{ dns_prevent_single_point_failure }},"coresPerReplica":{{ dns_cores_per_replica }},"nodesPerReplica":{{ dns_nodes_per_replica }},"min":{{ dns_min_replicas }}}}
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- --logtostderr=true
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- --v=2
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- --configmap=dns-autoscaler{{ coredns_ordinal_suffix }}
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- --target=Deployment/coredns{{ coredns_ordinal_suffix }}
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tolerations:
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- key: "CriticalAddonsOnly"
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operator: "Exists"
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serviceAccountName: dns-autoscaler
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