[Kubernetes (K8S)] Helm install DNSPod Webhook for Cert Manager within Kubernetes (K8S)

Posted on 2020-09-19 Edited on 2023-09-02 In Cloud Native , Kubernetes (K8S) , Helm Views: Word count in article: 4.4k Reading time ≈ 4 mins.

helm-dnspod-webhook-cert-manager-example

dnspod-webhook-cert-manager is a cert-manager plugin to manage SSL certificates on Kubernetes.

Along with Nginx Ingress, you can configure HTTPS access to the website. With Let’s Encrypt provide free SSL certificates, all the free packs of cert-manager + Nginx Ingress + Let’s Encrypt are automatic generated. But cert-manager does not support dnspod by default.

You can modify it and use dnspod-webhook-cert-manager. There is some examplesabout installing it with Helm in the article.

Prerequisites

Kubernetes (K8S)

Kubernetes (K8s) is an open-source system for automating deployment, scaling, and management of containerized applications.
Helm

Helm is the best way to find, share, and use software built for Kubernetes.
cert-manager

x509 certificate management for Kubernetes.
DNSPod API ID and Token.

DNSPod is the largest free DNS service provider in China.

How to Install

# git clone example and dnspod-webhook-cert-manager.
$ git clone --recursive https://github.com/CloudoLife/helm-dnspod-webhook-cert-manager-example

$ cd helm-dnspod-webhook-cert-manager-example

Custom Values.yaml

Edit values.yaml in helm-dnspod-webhook-cert-manager-example directory, and replace content within < and >.

# cert-manager-webhook-dnspod/values.yaml at master · qqshfox/cert-manager-webhook-dnspod
# https://github.com/qqshfox/cert-manager-webhook-dnspod/blob/master/deploy/cert-manager-webhook-dnspod/values.yaml

# The GroupName here is used to identify your company or business unit that
# created this webhook.
# For example, this may be "acme.mycompany.com".
# This name will need to be referenced in each Issuer's `webhook` stanza to
# inform cert-manager of where to send ChallengePayload resources in order to
# solve the DNS01 challenge.
# This group name should be **unique**, hence using your own company's domain
# here is recommended.
groupName: <Your Company>

secrets:
  # 密钥管理 - DNSPod 官方帮助中心-技术支持-DNSPod-免费智能DNS解析服务商-电信_网通_教育网,智能DNS
  # https://support.dnspod.cn/account/5f2d466de8320f1a740d9ff3/
  apiID: <Your DNSPod API ID>
  apiToken:  <Your DNSPod API Token>

clusterIssuer:
  enabled: true
  # staging: false
  email: <Your email>

  # https://cert-manager.io/docs/configuration/acme/#adding-multiple-solver-types
  selector:
    dnsZones:
      - <Your domain>

image:
#   repository: qqshfox/cert-manager-webhook-dnspod
# Or
#   repository: cloudolife/cert-manager-webhook-dnspod
# Or
  repository: <Your Repository>/cert-manager-webhook-dnspod
  tag: latest
  pullPolicy: IfNotPresent

# nameOverride: ""
# fullnameOverride: ""

# service:
#   type: ClusterIP
#   port: 443

# resources: {}
#   # We usually recommend not to specify default resources and to leave this as a conscious
#   # choice for the user. This also increases chances charts run on environments with little
#   # resources, such as Minikube. If you do want to specify resources, uncomment the following
#   # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
#   # limits:
#   #  cpu: 100m
#   #  memory: 128Mi
#   # requests:
#   #  cpu: 100m
#   #  memory: 128Mi

# nodeSelector: {}

# tolerations: []

# affinity: {}

Install by Helm

Helm install cert-manager-webhook-dnspod within cert-manager namespace. Please create cert-manager namespace first if not exist.

# crate namespace:
$ kubectl create namespace cert-manager

$ helm install --name cert-manager-webhook-dnspod --namespace=cert-manager ./cert-manager-webhook-dnspod/deploy/webhook-dnspod -f values.yaml

See Helm release about cert-manager-webhook-dnspod.

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$ helm list --namespace cert-manager
NAME                       	NAMESPACE   	REVISION	UPDATED                               	STATUS  	CHART                            	APP VERSION
cert-manager-webhook-dnspod	cert-manager	1       	2020-09-19 12:54:53.866675 +0800 +0800	deployed	cert-manager-webhook-dnspod-0.3.1	0.2.0

See pods about cert-manager-webhook-dnspod.

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$ kubectl get pods -n cert-manager
NAME                                           READY   STATUS    RESTARTS   AGE
cert-manager-webhook-dnspod-84b9b7b886-q9dbj   1/1     Running   3          13d