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Merge pull request #2462 from woopstar/coredns-patch

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Add CoreDNS support
This commit is contained in:
Chad Swenson
2018-03-16 18:33:36 -05:00
committed by GitHub
parent 4ff17cb5a5 e40368ae2b
commit 7d33650019
20 changed files with 365 additions and 66 deletions
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8
docs/dns-stack.md
View File

@@ -62,6 +62,14 @@ other queries are forwardet to the nameservers found in ``upstream_dns_servers``
This does not install the dnsmasq DaemonSet and instructs kubelet to directly use kubedns/skydns for
all queries.
#### coredns
This does not install the dnsmasq DaemonSet and instructs kubelet to directly use CoreDNS for
all queries.
#### coredns_dual
This does not install the dnsmasq DaemonSet and instructs kubelet to directly use CoreDNS for
all queries. It will also deploy a secondary CoreDNS stack
#### manual
This does not install dnsmasq or kubedns, but allows you to specify
`manual_dns_server`, which will be configured on nodes for handling Pod DNS.

7
docs/vars.md
View File

@@ -63,7 +63,8 @@ following default cluster paramters:
bits in kube_pods_subnet dictates how many kube-nodes can be in cluster.
* *dns_setup* - Enables dnsmasq
* *dnsmasq_dns_server* - Cluster IP for dnsmasq (default is 10.233.0.2)
* *skydns_server* - Cluster IP for KubeDNS (default is 10.233.0.3)
* *skydns_server* - Cluster IP for DNS (default is 10.233.0.3)
* *skydns_server_secondary* - Secondary Cluster IP for CoreDNS used with coredns_dual deployment (default is 10.233.0.4)
* *cloud_provider* - Enable extra Kubelet option if operating inside GCE or
OpenStack (default is unset)
* *kube_hostpath_dynamic_provisioner* - Required for use of PetSets type in
@@ -105,9 +106,9 @@ Stack](https://github.com/kubernetes-incubator/kubespray/blob/master/docs/dns-st
* *http_proxy/https_proxy/no_proxy* - Proxy variables for deploying behind a
proxy. Note that no_proxy defaults to all internal cluster IPs and hostnames
that correspond to each node.
* *kubelet_deployment_type* - Controls which platform to deploy kubelet on.
* *kubelet_deployment_type* - Controls which platform to deploy kubelet on.
Available options are ``host``, ``rkt``, and ``docker``. ``docker`` mode
is unlikely to work on newer releases. Starting with Kubernetes v1.7
is unlikely to work on newer releases. Starting with Kubernetes v1.7
series, this now defaults to ``host``. Before v1.7, the default was Docker.
This is because of cgroup [issues](https://github.com/kubernetes/kubernetes/issues/43704).
* *kubelet_load_modules* - For some things, kubelet needs to load kernel modules. For example,