问题描述
我正在尝试从 Eks 清单文件设置外部 dns。
我创建了 EKS 集群并创建了 3 个 fargate 配置文件，default、kube-system 和 dev。 Coredns Pod 已启动并正在运行。
然后我按照此文档安装了 AWS Load Balancer Controller。 https://docs.aws.amazon.com/eks/latest/userguide/aws-load-balancer-controller.html 负载均衡控制器出现在 kube-system 中。
然后我使用以下清单文件安装了 external-dns 部署。
apiVersion: v1
kind: ServiceAccount
metadata:
name: external-dns
namespace: kube-system
annotations:
eks.amazonaws.com/role-arn: arn:aws:iam::xxxxxxxxx:role/eks-externaldnscontrollerRole-XST756O4A65B
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
name: external-dns
rules:
- apiGroups: [""]
resources: ["services"]
verbs: ["get","watch","list"]
- apiGroups: [""]
resources: ["pods"]
verbs: ["get","list"]
- apiGroups: ["extensions"]
resources: ["ingresses"]
verbs: ["get","list"]
- apiGroups: [""]
resources: ["nodes"]
verbs: ["list"]
---
apiVersion: rbac.authorization.k8s.io/v1beta1
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: kube-system
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: external-dns
namespace: kube-system
spec:
selector:
matchLabels:
app: external-dns
strategy:
type: Recreate
template:
metadata:
labels:
app: external-dns
spec:
serviceAccountName: external-dns
containers:
- name: external-dns
image: bitnami/external-dns:0.7.1
args:
- --source=service
- --source=ingress
#- --domain-filter=xxxxxxxxxx.com # will make ExternalDNS see only the hosted zones matching provided domain,omit to process all available hosted zones
- --provider=aws
#- --policy=upsert-only # would prevent ExternalDNS from deleting any records,omit to enable full synchronization
- --aws-zone-type=public # only look at public hosted zones (valid values are public,private or no value for both)
- --registry=txt
- --txt-owner-id=my-identifier
#securityContext:
# fsGroup: 65534
我将命名空间 kube-system 和 dev 都用于 external-dns，两者都很好。
然后我部署了应用程序和入口清单文件。我使用了两个命名空间，kube-system 和 dev。
apiVersion: apps/v1
kind: Deployment
metadata:
name: app1-nginx-deployment
labels:
app: app1-nginx
namespace: kube-system
spec:
replicas: 2
selector:
matchLabels:
app: app1-nginx
template:
metadata:
labels:
app: app1-nginx
spec:
containers:
- name: app1-nginx
image: kube-nginxapp1:1.0.0
ports:
- containerPort: 80
resources:
requests:
memory: "128Mi"
cpu: "500m"
limits:
memory: "500Mi"
cpu: "1000m"
---
apiVersion: v1
kind: Service
metadata:
name: app1-nginx-nodeport-service
labels:
app: app1-nginx
namespace: kube-system
annotations:
#Important Note: Need to add health check path annotations in service level if we are planning to use multiple targets in a load balancer
alb.ingress.kubernetes.io/healthcheck-path: /app1/index.html
spec:
type: NodePort
selector:
app: app1-nginx
ports:
- port: 80
targetPort: 80
----------
# Annotations Reference: https://kubernetes-sigs.github.io/aws-alb-ingress-controller/guide/ingress/annotation/
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ingress-usermgmt-restapp-service
labels:
app: usermgmt-restapp
namespace: kube-system
annotations:
# Ingress Core Settings
alb.ingress.kubernetes.io/scheme: internet-facing
kubernetes.io/ingress.class: alb
# Health Check Settings
alb.ingress.kubernetes.io/healthcheck-protocol: HTTP
alb.ingress.kubernetes.io/healthcheck-port: traffic-port
#Important Note: Need to add health check path annotations in service level if we are planning to use multiple targets in a load balancer
#alb.ingress.kubernetes.io/healthcheck-path: /usermgmt/health-status
alb.ingress.kubernetes.io/healthcheck-interval-seconds: '15'
alb.ingress.kubernetes.io/healthcheck-timeout-seconds: '5'
alb.ingress.kubernetes.io/success-codes: '200'
alb.ingress.kubernetes.io/healthy-threshold-count: '2'
alb.ingress.kubernetes.io/unhealthy-threshold-count: '2'
## SSL Settings
alb.ingress.kubernetes.io/listen-ports: '[{"HTTPS":443},{"HTTP":80}]'
alb.ingress.kubernetes.io/certificate-arn: arn:aws:acm:us-east-1:0xxxxxxxxxx:certificate/0xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
#alb.ingress.kubernetes.io/ssl-policy: ELBSecurityPolicy-TLS-1-1-2017-01 #Optional (Picks default if not used)
# SSL Redirect Setting
alb.ingress.kubernetes.io/actions.ssl-redirect: '{"Type": "redirect","RedirectConfig": { "Protocol": "HTTPS","Port": "443","StatusCode": "HTTP_301"}}'
# External DNS - For creating a Record Set in Route53
external-dns.alpha.kubernetes.io/hostname: palb.xxxxxxx.com
# For Fargate
alb.ingress.kubernetes.io/target-type: ip
spec:
rules:
- http:
paths:
- path: /* # SSL Redirect Setting
pathType: ImplementationSpecific
backend:
service:
name: ssl-redirect
port:
name: use-annotation
- path: /*
pathType: ImplementationSpecific
backend:
service:
name: app1-nginx-nodeport-service
port:
number: 80
所有 pod 都运行良好，但它没有为 thr alb 动态注册 dns 别名。 你能指导我知道我出了什么问题吗？
解决方法
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