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Enable DNS AutoScaler for CoreDNS (#3707)

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* 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
This commit is contained in:
Andreas Krüger
2018-11-15 10:28:03 +01:00
committed by k8s-ci-robot
parent 9ebdf0e3cf
commit 17f07e2613
36 changed files with 70 additions and 55 deletions
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10
roles/kubernetes-apps/ansible/tasks/cleanup_dns.yml
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@@ -54,3 +54,13 @@
- kubeadm_init is defined
- kubeadm_init.changed|default(false)
- inventory_hostname == groups['kube-master'][0]
- name: Kubernetes Apps | Delete old KubeDNS Autoscaler deployment
kube:
name: "kubedns-autoscaler"
namespace: "kube-system"
kubectl: "{{ bin_dir }}/kubectl"
resource: "deploy"
state: absent
tags:
- upgrade

5
roles/kubernetes-apps/ansible/tasks/coredns.yml
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@@ -10,6 +10,10 @@
- { name: coredns, file: coredns-svc.yml, type: svc }
- { name: coredns, file: coredns-clusterrole.yml, type: clusterrole }
- { name: coredns, file: coredns-clusterrolebinding.yml, type: clusterrolebinding }
- { name: dns-autoscaler, file: dns-autoscaler-sa.yml, type: sa }
- { name: dns-autoscaler, file: dns-autoscaler-clusterrole.yml, type: clusterrole }
- { name: dns-autoscaler, file: dns-autoscaler-clusterrolebinding.yml, type: clusterrolebinding }
- { name: dns-autoscaler, file: dns-autoscaler.yml, type: deployment }
register: coredns_manifests
vars:
clusterIP: "{{ skydns_server }}"
@@ -26,6 +30,7 @@
with_items:
- { name: coredns, src: coredns-deployment.yml, file: coredns-deployment-secondary.yml, type: deployment }
- { name: coredns, src: coredns-svc.yml, file: coredns-svc-secondary.yml, type: svc }
- { name: dns-autoscaler, src: dns-autoscaler.yml, file: coredns-autoscaler-secondary.yml, type: deployment }
register: coredns_secondary_manifests
vars:
clusterIP: "{{ skydns_server_secondary }}"

8
roles/kubernetes-apps/ansible/tasks/kubedns.yml
View File

@@ -8,10 +8,10 @@
- { name: kube-dns, file: kubedns-sa.yml, type: sa }
- { name: kube-dns, file: kubedns-deploy.yml, type: deployment }
- { name: kube-dns, file: kubedns-svc.yml, type: svc }
- { name: kubedns-autoscaler, file: kubedns-autoscaler-sa.yml, type: sa }
- { name: kubedns-autoscaler, file: kubedns-autoscaler-clusterrole.yml, type: clusterrole }
- { name: kubedns-autoscaler, file: kubedns-autoscaler-clusterrolebinding.yml, type: clusterrolebinding }
- { name: kubedns-autoscaler, file: kubedns-autoscaler.yml, type: deployment }
- { name: dns-autoscaler, file: dns-autoscaler-sa.yml, type: sa }
- { name: dns-autoscaler, file: dns-autoscaler-clusterrole.yml, type: clusterrole }
- { name: dns-autoscaler, file: dns-autoscaler-clusterrolebinding.yml, type: clusterrolebinding }
- { name: dns-autoscaler, file: dns-autoscaler.yml, type: deployment }
register: kubedns_manifests
when:
- dns_mode in ['kubedns','dnsmasq_kubedns']