--- title: "Amazon Lightsail" date: 2019-03-03T16:39:46+01:00 draft: false slug: lightsail --- Since: v0.5.0 Configuration for [Amazon Lightsail](https://aws.amazon.com/lightsail/). - Code: `lightsail` {{% notice note %}} _Please contribute by adding a CLI example._ {{% /notice %}} ## Credentials | Environment Variable Name | Description | |-----------------------|-------------| | `AWS_ACCESS_KEY_ID` | Access key ID | | `AWS_SECRET_ACCESS_KEY` | Secret access key | | `DNS_ZONE` | Domain name of the DNS zone | The environment variable names can be suffixed by `_FILE` to reference a file instead of a value. More information [here](/lego/dns/#configuration-and-credentials). ## Additional Configuration | Environment Variable Name | Description | |--------------------------------|-------------| | `LIGHTSAIL_POLLING_INTERVAL` | Time between DNS propagation check | | `LIGHTSAIL_PROPAGATION_TIMEOUT` | Maximum waiting time for DNS propagation | The environment variable names can be suffixed by `_FILE` to reference a file instead of a value. More information [here](/lego/dns/#configuration-and-credentials). ## Description AWS Credentials are automatically detected in the following locations and prioritized in the following order: 1. Environment variables: `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`, [`AWS_SESSION_TOKEN`] 2. Shared credentials file (defaults to `~/.aws/credentials`, profiles can be specified using `AWS_PROFILE`) 3. Amazon EC2 IAM role AWS region is not required to set as the Lightsail DNS zone is in global (us-east-1) region. ## Policy The following AWS IAM policy document describes the minimum permissions required for lego to complete the DNS challenge. ```json { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action": [ "lightsail:DeleteDomainEntry", "lightsail:CreateDomainEntry" ], "Resource": "" } ] } ``` Replace the `Resource` value with your Lightsail DNS zone ARN. You can retrieve the ARN using aws cli by running `aws lightsail get-domains --region us-east-1` (Lightsail web console does not show the ARN, unfortunately). It should be in the format of `arn:aws:lightsail:global::Domain/`. You also need to replace the region in the ARN to `us-east-1` (instead of `global`). Alternatively, you can also set the `Resource` to `*` (wildcard), which allow to access all domain, but this is not recommended. ## More information - [Go client](https://github.com/aws/aws-sdk-go/)