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Helm Chart for PowerDNS

Installs a PowerDNS authoritative nameserver inside a Kubernetes cluster

TL;DR;

helm repo add puckpuck https://puckpuck.github.io/helm-charts
helm install powerdns puckpuck/powerdns

Installing the chart

It's strongly recommended you create a values yaml file (ie: my-values.yaml) to configure this chart.

The chart can be configured on startup to work with a list of domains. This should be done as part of the powerdns.initDomains property.

powerdns:
  initDomains:
    - k8s.my.sample.domain

You will also need to configure some means of accesibility from the outside world for the DNS server to be accesible. You can do it by setting your service type to LoadBalancer and using annotations to ensure both TCP/UDP can be accessed. Kubernetes has limitations about allowing the same port to be used for both TCP and UDP protocols. Some LoadBalancer providers can get around this (ie: MetalLB) using service annotations. A potential MetalLB setup would be:

service:
  type: LoadBalancer
  annotations:
    metallb.universe.tf/allow-shared-ip: powerdns
  # force ip address
  # ip: 192.168.1.100

Once you have a values yaml file configured with all your options you can install the chart

helm repo add puckpuck https://puckpuck.github.io/helm-charts
helm install powerdns puckpuck/powerdns --values my-values.yaml

Configuration

The values.yaml file contains information about all configuration options for this chart.

Parameters

Parameter Description Default
powerdns.api.key PowerDNS API key PowerDNSAPI
powerdns.initDomains List of domains to configure on startup []
replicaCount Number of pdns nodes 1
image.repository PowerDNS Image repository psitrax/powerdns
image.tag PowerDNS Image tag (leave blank to use app version) nil
image.pullPolicy PowerDNS Image pull policy IfNotPresent
service.type Kubernetes service type ClusterIP
service.annotations Annotations for PowerDNS service {}
service.ip Specify IP address for PowerDNS service nil
resources CPU/Memory resource limits/requests {}
nodeSelector Node labels for pod assignment {}
tolerations Toleration labels for pod assignment []
affinity Affinity settings for pod assignment {}
mariadb.enabled Deploy MariaDB container(s) true
mariadb.rootUser.password MariaDB admin password nil
mariadb.db.name Database name to create powerdns
mariadb.db.user Database user to create powerdns
mariadb.db.password Password for the database powerdns