Add Route53 component documentation (#6439)

* Add Route53 component documentation

* ✏️ Tweaks

* Update 'ha_release'

source/_components/route53.markdown

@@ -0,0 +1,103 @@
+---
+layout: page
+title: "route53"
+description: "Automatically update your AWS Route53 DNS records."
+date: 2018-02-10 20:08
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: route53.png
+ha_category: Network
+ha_release: "0.81"
+---
+
+With the `route53` component can you keep your AWS Route53 DNS records up to date.
+
+The component will run every hour, but can also be started manually by using the service `route53.update_records` under services.
+
+Please note that this platform uses the API from [ipify.org](https://www.ipify.org/) to set the public IP address.
+
+## {% linkable_title Setup %}
+
+You will need to configure your AWS Account with a suitable IAM policy and API keys for this to function.
+
+If you are familiar with this process, you can skip the next section and head directly to the configuration section.
+
+On the AWS side, you need to do the following;
+
+1. Create a suitable zone for a domain that you own and manage in Route53, the domain `home.yourdomain.com` is used as an example.
+
+2. Once created, write down the Hosted Zone ID value for the domain. This is needed for the plugin and IAM configuration.
+
+3. Create an IAM Policy that provides update and query access to this domain explicitly and has no other permissions to the AWS account.
+
+Here is an IAM Policy sample, don't forget to update your Zone ID on the Resource line.
+
+```
+{
+    "Version": "2012-10-17",
+    "Statement": [
+        {
+            "Sid": "VisualEditor0",
+            "Effect": "Allow",
+            "Action": [
+                "route53:GetHostedZone",
+                "route53:ChangeResourceRecordSets",
+                "route53:ListResourceRecordSets"
+            ],
+            "Resource": "arn:aws:route53:::hostedzone/YOURZONEIDGOESHERE"
+        },
+        {
+            "Sid": "VisualEditor1",
+            "Effect": "Allow",
+            "Action": "route53:TestDNSAnswer",
+            "Resource": "*"
+        }
+    ]
+}
+```
+
+4. Once this has been done, create a new user called `homeassistant` and add the IAM policy to the user, allowing it to manage this DNS resource.
+
+5. Under the security credentials tab for the `homeassistant` user, create a set of access keys for placement in the component definition YAML.
+
+## {% linkable_title Configuration %}
+
+To use the component in your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+route53:
+  aws_access_key_id: ABC123
+  aws_secret_access_key: DEF456
+  zone: ZONEID678
+  domain: home.yourdomain.com
+  records:
+    - vpn
+    - hassio
+    - home
+```
+
+{% configuration route53 %}
+aws_access_key_id:
+  description: The AWS access key ID for the account that has IAM access to the domain.
+  required: true
+  type: string
+aws_secret_access_key:
+  description: The AWS secret access key for the account that has IAM access to the domain.
+  required: true
+  type: string
+zone:
+  description: The AWS zone ID for the domain in Route53.
+  required: true
+  type: string
+domain:
+  description: The domain name for the domain in Route53.
+  required: true
+  type: string
+records:
+  description: A list of records you want to update.
+  required: true
+  type: list
+{% endconfiguration %}