External-dns: Difference between revisions
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(Created page with "=External= * https://github.com/helm/charts/tree/master/stable/external-dns =Internal= * Kubernetes DNS Concepts =Overview=") |
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=Overview= | =Overview= | ||
One single deployment can serve multiple services in different namespaces. | |||
=Installation= | |||
<syntaxhighlight lang='bash'> | |||
helm repo add bitnami https://charts.bitnami.com/bitnami | |||
helm install -n default external-dns bitnami/external-dns -f ./overlay.yaml | |||
</syntaxhighlight> | |||
Upon installation: | |||
<syntaxhighlight lang='text'> | |||
NAME READY STATUS RESTARTS AGE | |||
external-dns-5788c65f8c-7l7kd 1/1 Running 0 60m | |||
</syntaxhighlight> | |||
=Configuration= | |||
==external-dns Configuration== | |||
<syntaxhighlight lang='yaml'> | |||
aws: | |||
region: us-west-2 | |||
registry: txt | |||
policy: upsert-only | |||
txtOwnerId: "Z0000000000000000000" | |||
sources: | |||
- service | |||
- ingress | |||
domainFilters: | |||
- example.com | |||
</syntaxhighlight> | |||
When the DNS service is Route53, "txtOwnerId" is the ID of the [[Amazon_Route53_Concepts#Hosted_Zone|hosted zone]]. It has other meanings when using a different DNS service. | |||
==Service Configuration== | |||
<syntaxhighlight lang='yaml'> | |||
apiVersion: v1 | |||
kind: Service | |||
metadata: | |||
annotations: | |||
external-dns.alpha.kubernetes.io/hostname: 'something.example.com' | |||
</syntaxhighlight> | |||
Latest revision as of 08:20, 13 November 2020
External
Internal
Overview
One single deployment can serve multiple services in different namespaces.
Installation
helm repo add bitnami https://charts.bitnami.com/bitnami
helm install -n default external-dns bitnami/external-dns -f ./overlay.yaml
Upon installation:
NAME READY STATUS RESTARTS AGE
external-dns-5788c65f8c-7l7kd 1/1 Running 0 60m
Configuration
external-dns Configuration
aws:
region: us-west-2
registry: txt
policy: upsert-only
txtOwnerId: "Z0000000000000000000"
sources:
- service
- ingress
domainFilters:
- example.com
When the DNS service is Route53, "txtOwnerId" is the ID of the hosted zone. It has other meanings when using a different DNS service.
Service Configuration
apiVersion: v1
kind: Service
metadata:
annotations:
external-dns.alpha.kubernetes.io/hostname: 'something.example.com'