This module adds alarms for metrics produced by an ELB. They
will go off if the latency gets too high, or there are too many 5xx errors, or too few requests are coming in, all
good indicators that something is going wrong with your servers.
Note: The elb-backend-connection-errors, elb-too-many-backend-5xx, and elb-too-many-5xx alarms all monitor
metrics that are only reported when there are errors. If there are no errors, those metrics are not reported at all,
and the alarm goes into an INSUFFICIENT_DATA state. This actually means everything is working OK. It's only when
these alarms enter ALARM state that you need to look into it.
Find your topic in the list and click the checkbox next to it.
Click the "Actions" button and select "Subscribe to Topic".
Choose "Email" or "SMS Message" as the protocol, enter your email or phone number, and click "Create Subscription".
AWS will email or message you to confirm the subscription. Be sure to confirm it, or you won't receive any
notifications, and the alarm will report its status as INSUFFICIENT_DATA!
Questions? Ask away.
We're here to talk about our services, answer any questions, give advice, or just to chat.
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class=\"preview__body--title\" id=\"elb-alarms-module\">ELB Alarms Module</h1><div class=\"preview__body--border\"></div><p>This module adds alarms for metrics produced by an <a href=\"https://aws.amazon.com/elasticloadbalancing/\" class=\"preview__body--description--blue\" target=\"_blank\">ELB</a>. They\nwill go off if the latency gets too high, or there are too many 5xx errors, or too few requests are coming in, all\ngood indicators that something is going wrong with your servers.</p>\n<p><strong>Note</strong>: The <code>elb-backend-connection-errors</code>, <code>elb-too-many-backend-5xx</code>, and <code>elb-too-many-5xx</code> alarms all monitor\nmetrics that are only reported when there are errors. If there are no errors, those metrics are not reported at all,\nand the alarm goes into an <code>INSUFFICIENT_DATA</code> state. This actually means everything is working OK. It's only when\nthese alarms enter <code>ALARM</code> state that you need to look into it.</p>\n<h2 class=\"preview__body--subtitle\" id=\"how-do-you-use-this-module\">How do you use this module?</h2>\n<p>Check out the <a href=\"/repos/v0.32.1/terraform-aws-monitoring/examples/elb-alarms\" class=\"preview__body--description--blue\">examples/elb-alarms example</a>.</p>\n<h2 class=\"preview__body--subtitle\" id=\"how-do-i-get-notifications-from-these-alarms\">How do I get notifications from these alarms?</h2>\n<p>One of the parameters you pass to this module is a list of <a href=\"https://aws.amazon.com/sns/\" class=\"preview__body--description--blue\" target=\"_blank\">SNS</a> topic ARNs to notify when\nthe website goes down. Here is how to configure an SNS topic:</p>\n<ol>\n<li>Create an SNS topic using the Terraform <a href=\"https://www.terraform.io/docs/providers/aws/r/sns_topic.html\" class=\"preview__body--description--blue\" target=\"_blank\">aws_sns_topic</a> resource.</li>\n<li>Pass the topic's ARN to this module (e.g. <code>alarm_sns_topic_arns = "${aws_sns_topic.my_topic.arn}"</code>)</li>\n<li>Login to the <a href=\"https://console.aws.amazon.com/sns/v2/home\" class=\"preview__body--description--blue\" target=\"_blank\">SNS console</a>.</li>\n<li>Click the "Topics" link in the menu on the left.</li>\n<li>Find your topic in the list and click the checkbox next to it.</li>\n<li>Click the "Actions" button and select "Subscribe to Topic".</li>\n<li>Choose "Email" or "SMS Message" as the protocol, enter your email or phone number, and click "Create Subscription".</li>\n<li>AWS will email or message you to confirm the subscription. Be sure to confirm it, or you won't receive any\nnotifications, and the alarm will report its status as <code>INSUFFICIENT_DATA</code>!</li>\n</ol>\n","repoName":"terraform-aws-monitoring","repoRef":"v0.30.3","serviceDescriptor":{"serviceName":"CloudWatch","serviceRepoName":"terraform-aws-monitoring","serviceRepoOrg":"gruntwork-io","cloudProviders":["aws"],"description":"Send all metrics to CloudWatch, including those not visible to the EC2 hypervisor. Create dashboards and alerts as code.","imageUrl":"cloudwatch.png","licenseType":"subscriber","technologies":["Terraform","Bash"],"compliance":[],"tags":[""]},"serviceCategoryName":"Monitoring & alerting","fileName":"README.md","filePath":"/modules/alarms/elb-alarms","title":"Repo Browser: CloudWatch","description":"Browse the repos in the Gruntwork Infrastructure as Code Library."}
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main.tf
