...
Create a configuration file (for example, called
external-dns-deployment.yaml) to create the ExternalDNS deployment, and specify the name of the Kubernetes secret you just created.
| Code Block |
|---|
...
| language | yaml |
|---|
apiVersion: v1
kind: ServiceAccount
metadata:
name: external-dns
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: external-dns
rules:
- apiGroups: [""]
resources: ["services","endpoints","pods"]
verbs: ["get","watch","list"]
- apiGroups: ["extensions","networking.k8s.io"]
resources: ["ingresses"]
verbs: ["get","watch","list"]
- apiGroups: [""]
resources: ["nodes"]
verbs: ["list"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: external-dns-viewer
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: external-dns
subjects:
- kind: ServiceAccount
name: external-dns
namespace: default
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: external-dns
spec:
strategy:
type: Recreate
selector:
matchLabels:
app: external-dns
template:
metadata:
labels:
app: external-dns
spec:
serviceAccountName: external-dns
containers:
- name: external-dns
image: k8s.gcr.io/external-dns/external-dns:v0.7.3
args:
- --source=service
- --source=ingress
- --provider=oci
- --txt-owner-id=<ocid of the DNS zone>
volumeMounts:
- name: config
mountPath: /etc/kubernetes/
volumes:
- name: config
secret:
secretName: external-dns-config |
| Info |
|---|
Helm install command assumes service account for ExternalDNS already exists. Service Account name set to metadata.name under iam.serviceAccounts portion in the |
Install the ExternalDNS helm chart:
Code Block language bash Apply the configuration file to deploy ExternalDNS
| Code Block |
|---|
kubectl apply -f external-dns-deployment.yaml -n uepe |
...
Where <helm chart version> is a compatible version listed in the Compatibility Matrix (4.1).
| Info |
|---|
Namespace set to metadata.namespace under iam.serviceAccounts portion in the uepe-eks.yaml file in Set Up Kubernetes Cluster - AWS section |
Confirm that external-dns has been installed successfully
| Code Block |
|---|
kubectl get pods -n uepe |
ingress-nginx-controller
| Info |
|---|
This is an optional add-on. Refer to the Introduction - OCI chapter for additional information. |
...