# Working with Amazon S3
<a name="s3_resources-v3"></a>

You can configure AWS ParallelCluster's access to Amazon S3 through the [`HeadNode`](HeadNode-v3.md) / [`Iam`](HeadNode-v3.md#HeadNode-v3-Iam) / [`S3Access`](HeadNode-v3.md#yaml-HeadNode-Iam-S3Access) and [`Scheduling`](Scheduling-v3.md) / [`SlurmQueues`](Scheduling-v3.md#Scheduling-v3-SlurmQueues) / [`- Name`](Scheduling-v3.md#yaml-Scheduling-SlurmQueues-Name) / [`Iam`](Scheduling-v3.md#Scheduling-v3-SlurmQueues-Iam) / [`S3Access`](Scheduling-v3.md#yaml-Scheduling-SlurmQueues-Iam-S3Access) parameters in the AWS ParallelCluster configuration.

## Examples
<a name="examples-s3-v3"></a>

The following example configures read-only access to all objects in {{firstbucket/read\_only/}} and read/write access to all objects in `{{secondbucket/read_and_write/}}`.

```
...
HeadNode:  
  ...
  Iam:
    S3Access:
      - BucketName: {{firstbucket}}
        KeyName: {{read_only/*}}
        EnableWriteAccess: {{false}}
      - BucketName: {{secondbucket}}
        KeyName: {{read_and_write/*}}
        EnableWriteAccess: {{true}}
...
```

The next example configures read-only access to all objects in folder `{{read_only/}}` in any bucket (\*) in the account.

```
...
HeadNode:  
  ...
  Iam: 
    S3Access:
      - BucketName: {{*}}
        KeyName: {{read_only/*}}
        EnableWriteAccess: {{false}}
...
```

The final example configures read\_only access to all buckets and objects in the account.

```
...
HeadNode:  
  ...
  Iam:   
    S3Access:
      - BucketName: *
...
```