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  2. Visualizing AWS DynamoDB Metrics with Grafana

How do I visualize AWS DynamoDB metrics with Grafana?

To visualize AWS DynamoDB metrics with Grafana, we will set up a DynamoDB table and configure Grafana to use AWS CloudWatch to pull in metrics. This involves creating a DynamoDB table, setting up CloudWatch for monitoring, and configuring Grafana as follows:

  1. Define the DynamoDB Table: A DynamoDB table is created to store our data.
  2. Set up CloudWatch Metrics: CloudWatch will collect and store the operational metrics of the DynamoDB table.
  3. Provision IAM Role and Policy: The IAM role and its associated policy allow Grafana to read metrics from CloudWatch.
  4. Grafana Datasource Configuration: Configures Grafana to use CloudWatch as a data source.

Below is the complete program:

import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

// DynamoDB Table Configuration
const example = new aws.dynamodb.Table("example", {
    name: "example-table",
    hashKey: "id",
    attributes: [{
        name: "id",
        type: "S",
    }],
    billingMode: "PAY_PER_REQUEST",
    tags: {
        Name: "example-table",
    },
});
// CloudWatch Metrics Configuration
const exampleLogGroup = new aws.cloudwatch.LogGroup("example", {name: "example-log-group"});
// IAM Role for Grafana to read CloudWatch metrics
const grafana = new aws.iam.Role("grafana", {
    name: "grafana-role",
    assumeRolePolicy: JSON.stringify({
        Version: "2012-10-17",
        Statement: [{
            Effect: "Allow",
            Principal: {
                Service: "grafana.amazonaws.com",
            },
            Action: "sts:AssumeRole",
        }],
    }),
});
// IAM Policy to grant read access to CloudWatch
const grafanaPolicy = new aws.iam.Policy("grafana_policy", {
    name: "grafana-policy",
    policy: JSON.stringify({
        Version: "2012-10-17",
        Statement: [{
            Effect: "Allow",
            Action: [
                "cloudwatch:GetMetricData",
                "cloudwatch:ListMetrics",
                "logs:DescribeLogGroups",
                "logs:GetLogEvents",
            ],
            Resource: "*",
        }],
    }),
});
// Attach the policy to the role
const grafanaAttach = new aws.iam.RolePolicyAttachment("grafana_attach", {
    role: grafana.name,
    policyArn: grafanaPolicy.arn,
});
export const dynamodbTableName = example.name;
export const cloudwatchLogGroupName = exampleLogGroup.name;
export const grafanaRoleArn = grafana.arn;

In summary, this example sets up an Amazon DynamoDB table and configures AWS CloudWatch to monitor it. An IAM role with read access to CloudWatch metrics is created and prepared for use with Grafana, ensuring that all necessary permissions and configurations are in place for visualizing metrics effectively.

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