Add support for running a nodelocal dns cache (#3861)
* Add support for running a nodelocal dns cache After encountering dns issues in a cluster I was recently working on I noticed Kubernetes 1.13 introduced support for running a nodelocal dns cache. I believe this can usefull for more people. https://github.com/kubernetes/kubernetes/commit/73b548db06c5e293533344c5b6171e955eac9ff1 https://github.com/kubernetes/enhancements/blob/master/keps/sig-network/0030-nodelocal-dns-cache.md * Add requested changes * Add additional requested changes + documentation * Add requested changes after review * Replace incorrect variable
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- docs/dns-stack.md 5 additions, 0 deletionsdocs/dns-stack.md
- inventory/sample/group_vars/k8s-cluster/k8s-cluster.yml 2 additions, 0 deletionsinventory/sample/group_vars/k8s-cluster/k8s-cluster.yml
- roles/download/defaults/main.yml 13 additions, 0 deletionsroles/download/defaults/main.yml
- roles/kubernetes-apps/ansible/defaults/main.yml 6 additions, 0 deletionsroles/kubernetes-apps/ansible/defaults/main.yml
- roles/kubernetes-apps/ansible/tasks/cleanup_dns.yml 13 additions, 0 deletionsroles/kubernetes-apps/ansible/tasks/cleanup_dns.yml
- roles/kubernetes-apps/ansible/tasks/main.yml 11 additions, 0 deletionsroles/kubernetes-apps/ansible/tasks/main.yml
- roles/kubernetes-apps/ansible/tasks/nodelocaldns.yml 18 additions, 0 deletionsroles/kubernetes-apps/ansible/tasks/nodelocaldns.yml
- roles/kubernetes-apps/ansible/templates/nodelocaldns-config.yml.j2 71 additions, 0 deletions...ernetes-apps/ansible/templates/nodelocaldns-config.yml.j2
- roles/kubernetes-apps/ansible/templates/nodelocaldns-deamonset.yml.j2 72 additions, 0 deletions...etes-apps/ansible/templates/nodelocaldns-deamonset.yml.j2
- roles/kubernetes-apps/ansible/templates/nodelocaldns-sa.yml.j2 8 additions, 0 deletions.../kubernetes-apps/ansible/templates/nodelocaldns-sa.yml.j2
- roles/kubespray-defaults/defaults/main.yaml 3 additions, 0 deletionsroles/kubespray-defaults/defaults/main.yaml
- tests/files/gce_centos7-flannel-addons.yml 1 addition, 0 deletionstests/files/gce_centos7-flannel-addons.yml
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