How Do I Configure an AWS Ecr Lifecyclepolicy With Pulumi?

Introduction

In this guide, we will walk through the process of configuring an AWS Elastic Container Registry (ECR) lifecycle policy using Pulumi. AWS ECR lifecycle policies enable you to manage the lifecycle of the images in your repositories. You can specify rules to automatically delete old images, retain specific tags, and more.

Step-by-Step Explanation

Step 1: Install Pulumi and AWS SDK

Ensure you have Pulumi and the AWS SDK installed. You can install them using npm:

npm install @pulumi/pulumi @pulumi/aws

Step 2: Create a New Pulumi Project

Create a new Pulumi project if you don’t already have one:

pulumi new aws-typescript

Step 3: Define the ECR Repository

In your index.ts file, define an ECR repository:

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

const repo = new aws.ecr.Repository("my-repo", {
    name: "my-repo",
});

Step 4: Define the Lifecycle Policy

Define the lifecycle policy for the ECR repository. The policy is defined in JSON format:

const lifecyclePolicy = new aws.ecr.LifecyclePolicy("my-lifecycle-policy", {
    repository: repo.name,
    policy: pulumi.output({
        rules: [
            {
                rulePriority: 1,
                description: "Expire images older than 30 days",
                selection: {
                    tagStatus: "any",
                    countType: "sinceImagePushed",
                    countUnit: "days",
                    countNumber: 30,
                },
                action: {
                    type: "expire",
                },
            },
        ],
    }).apply(JSON.stringify),
});

Step 5: Deploy the Stack

Deploy your stack to create the ECR repository and apply the lifecycle policy:

pulumi up

Summary

In this guide, we have shown how to configure an AWS ECR lifecycle policy using Pulumi. By following these steps, you can automate the management of your container images, ensuring that old images are cleaned up according to your specified rules.

Full Code Example

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

const repo = new aws.ecr.Repository("my-repo", {
    name: "my-repo",
});

const lifecyclePolicy = new aws.ecr.LifecyclePolicy("my-lifecycle-policy", {
    repository: repo.name,
    policy: pulumi.output({
        rules: [
            {
                rulePriority: 1,
                description: "Expire images older than 30 days",
                selection: {
                    tagStatus: "any",
                    countType: "sinceImagePushed",
                    countUnit: "days",
                    countNumber: 30,
                },
                action: {
                    type: "expire",
                },
            },
        ],
    }).apply(JSON.stringify),
});