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Showing content from https://github.com/wearemolecule/route53-kubernetes below:

wearemolecule/route53-kubernetes: [DEPRECATED] Sync Kubernetes Services with AWS Route53

This repo has been officially deprecated in favor of the https://github.com/kubernetes-incubator/external-dns addon. That addon offers a lot more features, better performance, and a compatibility mode for current users of route53-kubernetes. See compatibility mode docs here.

This is a Kubernetes service that polls services (in all namespaces) that are configured with the label dns=route53 and adds the appropriate alias to the domain specified by the annotation domainName=sub.mydomain.io. Multiple domains and top level domains are also supported: domainName=.mydomain.io,sub1.mydomain.io,sub2.mydomain.io

The following is an example ReplicationController definition for route53-kubernetes:

Create the ReplicationController via kubectl create -f <name_of_route53-kubernetes-rc.yaml>

Note: We don't currently sign our docker images. So, please use our images at your own risk.

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: route53-kubernetes
  namespace: kube-system
  labels:
    app: route53-kubernetes
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: route53-kubernetes
    spec:
      containers:
        - image: quay.io/molecule/route53-kubernetes:v1.3.0
          name: route53-kubernetes

This service expects that it's running on a Kubernetes node on AWS and that the IAM profile for that node is set up to allow the following, along with the default permissions needed by Kubernetes:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "route53:ListHostedZonesByName",
            "Resource": "*"
        },
        {
            "Effect": "Allow",
            "Action": "elasticloadbalancing:DescribeLoadBalancers",
            "Resource": "*"
        },
        {
            "Effect": "Allow",
            "Action": "route53:ChangeResourceRecordSets",
            "Resource": "*"
        }
    ]
}

Given the following Kubernetes service definition:

apiVersion: v1
kind: Service
metadata:
  name: my-app
  labels:
    app: my-app
    role: web
    dns: route53
  annotations:
    domainName: "test.mydomain.com"
spec:
  selector:
    app: my-app
    role: web
  ports:
  - name: web
    port: 80
    protocol: TCP
    targetPort: web
  - name: web-ssl
    port: 443
    protocol: TCP
    targetPort: web-ssl
  type: LoadBalancer

An "A" record for test.mydomain.com will be created as an alias to the ELB that is configured by kubernetes. This assumes that a hosted zone exists in Route53 for mydomain.com. Any record that previously existed for that dns record will be updated.

This setup shows some alternative ways to configure route53-kubernetes. First, you can specify kubernetes certs manually if you do not have service accounts enabled. Second, access to AWS can be configured through a Shared Credentials File.

apiVersion: v1
kind: ReplicationController
metadata:
  name: route53-kubernetes
  namespace: kube-system
  labels:
    app: route53-kubernetes
spec:
  replicas: 1
  selector:
    app: route53-kubernetes
  template:
    metadata:
      labels:
        app: route53-kubernetes
    spec:
      volumes:
        - name: ssl-cert
          secret:
            secretName: kube-ssl
        - name: aws-creds
          secret:
            secretName: aws-creds
      containers:
        - image: quay.io/molecule/route53-kubernetes:v1.3.0
          name: route53-kubernetes
          volumeMounts:
            - name: ssl-cert
              mountPath: /opt/certs
              readOnly: true
            - name: aws-creds
              mountPath: /opt/creds
              readOnly: true
          env:
            - name: "CA_FILE_PATH"
              value: "/opt/certs/ca.pem"
            - name: "CERT_FILE_PATH"
              value: "/opt/certs/cert.pem"
            - name: "KEY_FILE_PATH"
              value: "/opt/certs/key.pem"
            - name: "AWS_SHARED_CREDENTIALS_FILE"
              value: "/opt/creds/credentials"

We use glide to manage dependencies. To fetch the dependencies to your local vendor/ folder please run:

You may choose to use Docker images for route53-kubernetes on our Quay namespace or to build the binary, docker image, and push the docker image from scratch. See the Makefile for more information on doing this process manually.

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