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How to Mount an S3 Bucket into an ECS Container

Introduction:

In this blog post, we will show you how to mount an S3 bucket into an ECS container. This allows you to access the files in the S3 bucket from within the container.

Steps:

  • Create an S3 bucket.
  • Create an IAM role that allows the ECS container to access the S3 bucket.
  • Create an ECS task definition that mounts the S3 bucket into the container.
  • Deploy the ECS task definition.

Detailed Steps:

  • To create an S3 bucket, you can use the AWS Console, the AWS CLI, or the AWS SDKs.

  • To create an IAM role, you can use the AWS Console, the AWS CLI, or the AWS SDKs. The IAM role must have the following permissions:

    - s3:ListBucket
    - s3:GetObject
    - s3:PutObject
  • To create an ECS task definition, you can use the AWS Console, the AWS CLI, or the AWS SDKs. The task definition must specify the following:
    - The container image that you want to use.
    - The mount point for the S3 bucket.
    - The IAM role that you created in step 2.
  • To deploy the ECS task definition, you can use the AWS Console, the AWS CLI, or the AWS SDKs.

Example:

Here is an example of an ECS task definition that mounts an S3 bucket:

{
  "taskDefinition": {
    "family": "my-task-family",
    "containerDefinitions": [
      {
        "name": "my-container",
        "image": "my-container-image",
        "mountPoints": [
          {
            "containerPath": "/data",
            "sourceVolume": "my-s3-volume",
            "readOnly": true
          }
        ]
      }
    ],
    "volumes": [
      {
        "name": "my-s3-volume",
        "host": {
          "sourcePath": "/mnt/my-s3-bucket"
        },
        "dockerVolumeConfiguration": {
          "driver": "s3fs",
          "options": {
            "s3Url": "https://s3.amazonaws.com/my-bucket",
            "accessKeyId": "my-access-key-id",
            "secretAccessKey": "my-secret-access-key"
          }
        }
      }
    ]
  }
}
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In this example, the container is named my-container and it is using the image my-container-image. The S3 bucket is mounted at the /data path in the container. The S3 bucket is also configured with the IAM role that you created in step 2.

Conclusion:

In this blog post, we showed you how to mount an S3 bucket into an ECS container. This allows you to access the files in the S3 bucket from within the container.

I hope this helps!

Top comments (3)

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manojsathya profile image
molotov_container

We cant create task definition with dockerVolumeConfiguration and options.

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celsyum profile image
Tadas Rraa • Edited

Docker volumes (dockerVolumeConfiguration) are only supported when you're using the EC2 launch type

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drtrem profile image
drtrem

Are there any nuances regarding access to S3? I can't mount the file.