<p>The name of the canary that you want to update. To find the names of your canaries, use <a href="https://docs.aws.amazon.com/AmazonSynthetics/latest/APIReference/API_DescribeCanaries.html">DescribeCanaries</a>.</p> <p>You cannot change the name of a canary that has already been created.</p>

Use this structure to input your script code for the canary. This structure contains the Lambda handler with the location where the canary should start running the script. If the script is stored in an S3 bucket, the bucket name, key, and version are also included. If the script was passed into the canary directly, the script code is contained in the value of <code>Zipfile</code>.

This structure specifies how often a canary is to make runs and the date and time when it should stop making runs.

A structure that contains input information for a canary run.

If this canary is to test an endpoint in a VPC, this structure contains information about the subnets and security groups of the VPC endpoint. For more information, see <a href="https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Canaries_VPC.html"> Running a Canary in a VPC</a>.

A structure that contains the configuration for canary artifacts, including the encryption-at-rest settings for artifacts that the canary uploads to Amazon S3.

Specifies the runtime version to use for the canary. For a list of valid runtime versions and for more information about runtime versions, see <a href="https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Canaries_Library.html"> Canary Runtime Versions</a>.

<p>An object that specifies what screenshots to use as a baseline for visual monitoring by this canary. It can optionally also specify parts of the screenshots to ignore during the visual monitoring comparison.</p> <p>Visual monitoring is supported only on canaries running the <b>syn-puppeteer-node-3.2</b> runtime or later. For more information, see <a href="https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Library_SyntheticsLogger_VisualTesting.html"> Visual monitoring</a> and <a href="https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Canaries_Blueprints_VisualTesting.html"> Visual monitoring blueprint</a> </p>

<p>The ARN of the IAM role to be used to run the canary. This role must already exist, and must include <code>lambda.amazonaws.com</code> as a principal in the trust policy. The role must also have the following permissions:</p> <ul> <li> <p> <code>s3:PutObject</code> </p> </li> <li> <p> <code>s3:GetBucketLocation</code> </p> </li> <li> <p> <code>s3:ListAllMyBuckets</code> </p> </li> <li> <p> <code>cloudwatch:PutMetricData</code> </p> </li> <li> <p> <code>logs:CreateLogGroup</code> </p> </li> <li> <p> <code>logs:CreateLogStream</code> </p> </li> <li> <p> <code>logs:CreateLogStream</code> </p> </li> </ul>

The location in Amazon S3 where Synthetics stores artifacts from the test runs of this canary. Artifacts include the log file, screenshots, and HAR files. The name of the S3 bucket can't include a period (.).

The number of days to retain data about failed runs of this canary.

The number of days to retain data about successful runs of this canary.