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Add option to use pod name rather than IP address for Kubernetes (#1190)

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Change to use a new 'endpoints' directive and use a constant

Add initial docs for 'endpoints' directive

Add tests to Kubernetes setup for endpoints

Changes based on PR feedback

endpoint_pod_names is a boolean config option. Chahanged docs to reflect this.

Add a test when endpoints_pod_names is not set

Update README.md

Remove endpointNameModeName as it is no longer used
This commit is contained in:
Brian Akins
2017-11-08 08:07:10 -05:00
committed by John Belamaric
parent c6ce769fc6
commit 3527be6c00
6 changed files with 114 additions and 23 deletions
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11
plugin/kubernetes/README.md
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@@ -31,6 +31,7 @@ kubernetes [ZONES...] {
namespaces NAMESPACE...
labels EXPRESSION
pods POD-MODE
endpoint_pod_names
upstream ADDRESS...
ttl TTL
fallthrough
@@ -65,6 +66,16 @@ kubernetes [ZONES...] {
option requires substantially more memory than in insecure mode, since it will maintain a watch
on all pods.
* `endpoint_pod_names` Use the pod name of the pod targeted by the endpoint as
the endpoint name in A records, e.g.
`endpoint-name.my-service.namespace.svc.cluster.local. in A 1.2.3.4`
By default, the endpoint-name name selection is as follows: Use the hostname
of the endpoint, or if hostname is not set, use the dashed form of the endpoint
ip address (e.g. `1-2-3-4.my-service.namespace.svc.cluster.local.`)
If this directive is included, then name selection for endpoints changes as
follows: Use the hostname of the endpoint, or if hostname is not set, use the
pod name of the pod targeted by the endpoint. If there is no pod targeted by
the endpoint, use the dashed ip address form.
* `upstream` **ADDRESS [ADDRESS...]** defines the upstream resolvers used for resolving services
that point to external hosts (External Services). **ADDRESS** can be an ip, an ip:port, or a path
to a file structured like resolv.conf.