This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::ECS::TaskDefinition VolumeFrom
<a name="aws-properties-ecs-taskdefinition-volumefrom"></a>

Details on a data volume from another container in the same task definition.

## Syntax
<a name="aws-properties-ecs-taskdefinition-volumefrom-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-ecs-taskdefinition-volumefrom-syntax.json"></a>

```
{
  "[ReadOnly](#cfn-ecs-taskdefinition-volumefrom-readonly)" : {{Boolean}},
  "[SourceContainer](#cfn-ecs-taskdefinition-volumefrom-sourcecontainer)" : {{String}}
}
```

### YAML
<a name="aws-properties-ecs-taskdefinition-volumefrom-syntax.yaml"></a>

```
  [ReadOnly](#cfn-ecs-taskdefinition-volumefrom-readonly): {{Boolean}}
  [SourceContainer](#cfn-ecs-taskdefinition-volumefrom-sourcecontainer): {{String}}
```

## Properties
<a name="aws-properties-ecs-taskdefinition-volumefrom-properties"></a>

`ReadOnly`  <a name="cfn-ecs-taskdefinition-volumefrom-readonly"></a>
If this value is `true`, the container has read-only access to the volume. If this value is `false`, then the container can write to the volume. The default value is `false`.  
*Required*: No  
*Type*: Boolean  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`SourceContainer`  <a name="cfn-ecs-taskdefinition-volumefrom-sourcecontainer"></a>
The name of another container within the same task definition to mount volumes from.  
*Required*: No  
*Type*: String  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)