AssetOptions

class aws_cdk.aws_s3_assets.AssetOptions(*, asset_hash=None, asset_hash_type=None, bundling=None, exclude=None, follow_symlinks=None, ignore_mode=None, readers=None)

Bases: AssetOptions, FileCopyOptions

Parameters
  • asset_hash (Optional[str]) – Specify a custom hash for this asset. If assetHashType is set it must be set to AssetHashType.CUSTOM. For consistency, this custom hash will be SHA256 hashed and encoded as hex. The resulting hash will be the asset hash. NOTE: the hash is used in order to identify a specific revision of the asset, and used for optimizing and caching deployment activities related to this asset such as packaging, uploading to Amazon S3, etc. If you chose to customize the hash, you will need to make sure it is updated every time the asset changes, or otherwise it is possible that some deployments will not be invalidated. Default: - based on assetHashType

  • asset_hash_type (Optional[AssetHashType]) – Specifies the type of hash to calculate for this asset. If assetHash is configured, this option must be undefined or AssetHashType.CUSTOM. Default: - the default is AssetHashType.SOURCE, but if assetHash is explicitly specified this value defaults to AssetHashType.CUSTOM.

  • bundling (Union[BundlingOptions, Dict[str, Any], None]) – Bundle the asset by executing a command in a Docker container or a custom bundling provider. The asset path will be mounted at /asset-input. The Docker container is responsible for putting content at /asset-output. The content at /asset-output will be zipped and used as the final asset. Default: - uploaded as-is to S3 if the asset is a regular file or a .zip file, archived into a .zip file and uploaded to S3 otherwise

  • exclude (Optional[Sequence[str]]) – File paths matching the patterns will be excluded. See ignoreMode to set the matching behavior. Has no effect on Assets bundled using the bundling property. Default: - nothing is excluded

  • follow_symlinks (Optional[SymlinkFollowMode]) – A strategy for how to handle symlinks. Default: SymlinkFollowMode.NEVER

  • ignore_mode (Optional[IgnoreMode]) – The ignore behavior to use for exclude patterns. Default: IgnoreMode.GLOB

  • readers (Optional[Sequence[IGrantable]]) – A list of principals that should be able to read this asset from S3. You can use asset.grantRead(principal) to grant read permissions later. Default: - No principals that can read file asset.

ExampleMetadata

infused

Example:

lambda_.Function(self, "Function",
    code=lambda_.Code.from_asset(path.join(__dirname, "my-python-handler"),
        bundling=BundlingOptions(
            image=lambda_.Runtime.PYTHON_3_9.bundling_image,
            command=["bash", "-c", "pip install -r requirements.txt -t /asset-output && cp -au . /asset-output"
            ]
        )
    ),
    runtime=lambda_.Runtime.PYTHON_3_9,
    handler="index.handler"
)

Attributes

asset_hash

Specify a custom hash for this asset.

If assetHashType is set it must be set to AssetHashType.CUSTOM. For consistency, this custom hash will be SHA256 hashed and encoded as hex. The resulting hash will be the asset hash.

NOTE: the hash is used in order to identify a specific revision of the asset, and used for optimizing and caching deployment activities related to this asset such as packaging, uploading to Amazon S3, etc. If you chose to customize the hash, you will need to make sure it is updated every time the asset changes, or otherwise it is possible that some deployments will not be invalidated.

Default
  • based on assetHashType

asset_hash_type

Specifies the type of hash to calculate for this asset.

If assetHash is configured, this option must be undefined or AssetHashType.CUSTOM.

Default

  • the default is AssetHashType.SOURCE, but if assetHash is

explicitly specified this value defaults to AssetHashType.CUSTOM.

bundling

Bundle the asset by executing a command in a Docker container or a custom bundling provider.

The asset path will be mounted at /asset-input. The Docker container is responsible for putting content at /asset-output. The content at /asset-output will be zipped and used as the final asset.

Default

  • uploaded as-is to S3 if the asset is a regular file or a .zip file,

archived into a .zip file and uploaded to S3 otherwise

exclude

File paths matching the patterns will be excluded.

See ignoreMode to set the matching behavior. Has no effect on Assets bundled using the bundling property.

Default
  • nothing is excluded

A strategy for how to handle symlinks.

Default

SymlinkFollowMode.NEVER

ignore_mode

The ignore behavior to use for exclude patterns.

Default

IgnoreMode.GLOB

readers

A list of principals that should be able to read this asset from S3.

You can use asset.grantRead(principal) to grant read permissions later.

Default
  • No principals that can read file asset.