external dns configuration for multiple env - amazon-web-services

Question

How Can I setup a terraform external-dns config for multiple environments (dev/staging/pre-prod)
module "eks-external-dns" {
source = "lablabs/eks-external-dns/aws"
version = "1.0.0"
namespace = "kube-system"
cluster_identity_oidc_issuer = module.eks.cluster_oidc_issuer_url
cluster_identity_oidc_issuer_arn = module.eks.oidc_provider_arn
settings = {
"policy" = "sync"
"source"= "service"
"source"= "ingress"
"log-level"= "verbose"
"log-format"= "text"
"interval"= "1m"
"provider" = "aws"
"aws-zone-type" = "public"
"registry" = "txt"
"txt-owner-id" = "XXXXXXXXXXXXXX"
}
}
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
alb.ingress.kubernetes.io/healthcheck-interval-seconds: "15"
alb.ingress.kubernetes.io/healthcheck-path: /health
alb.ingress.kubernetes.io/healthcheck-port: traffic-port
alb.ingress.kubernetes.io/healthcheck-protocol: HTTP
alb.ingress.kubernetes.io/healthcheck-timeout-seconds: "5"
alb.ingress.kubernetes.io/healthy-threshold-count: "3"
alb.ingress.kubernetes.io/listen-ports: '[{"HTTP": 80}, {"HTTPS":443}]'
alb.ingress.kubernetes.io/actions.ssl-redirect: '{"Type": "redirect", "RedirectConfig": { "Protocol": "HTTPS", "Port": "443", "StatusCode": "HTTP_301"}}'
alb.ingress.kubernetes.io/certificate-arn: arn:aws:acm:eu-west-1:xxx:certificate/aaaa-bbb-ccc-dd-ffff
alb.ingress.kubernetes.io/scheme: internet-facing
alb.ingress.kubernetes.io/success-codes: "200"
alb.ingress.kubernetes.io/tags: createdBy=aws-controller
alb.ingress.kubernetes.io/target-type: ip
alb.ingress.kubernetes.io/unhealthy-threshold-count: "3"
external-dns.alpha.kubernetes.io/hostname: keycloak-ingress-controller
kubernetes.io/ingress.class: alb
alb.ingress.kubernetes.io/load-balancer-name: acme-lb
alb.ingress.kubernetes.io/group.name: acme-group
name: keycloak-ingress-controller
spec:
rules:
- host: dev.keycloak.acme.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: keycloak
port:
number: 8080
In my current situation, only my x.domain is processed by external-dns
I want to be able to let it work with urls like dev.myapp.example.com staging.myapp.example.com ...

Answer 1

I have resolved it by using helm values directly instead of settings.
module "eks-external-dns" {
source = "lablabs/eks-external-dns/aws"
version = "1.0.0"
# insert the 2 required variables here
namespace = "kube-system"
cluster_identity_oidc_issuer = module.eks.cluster_oidc_issuer_url
cluster_identity_oidc_issuer_arn = module.eks.oidc_provider_arn
values = yamlencode({
"sources" : ["service", "ingress"]
"logLevel" : "debug"
"provider" : "aws"
"registry" : "txt"
"txtOwnerId" : "xxxx"
"txtPrefix" : "external-dns"
"policy" : "sync"
"domainFilters" : [
"acme.com"
]
"publishInternalServices" : "true"
"triggerLoopOnEvent" : "true"
"interval" : "15s"
"podLabels" : {
"app" : "aws-external-dns-helm"
}
})
}