DeployTimeSubstitutedFile

class aws_cdk.aws_s3_deployment.DeployTimeSubstitutedFile(scope, id, *, destination_bucket, source, substitutions, destination_key=None, role=None)

Bases: BucketDeployment

DeployTimeSubstitutedFile is an extension of BucketDeployment that allows users to upload individual files and specify to make substitutions in the file.

ExampleMetadata:: infused

Example:

import aws_cdk.aws_lambda as lambda_

# my_lambda_function: lambda.Function
# destination_bucket: s3.Bucket
# (Optional) if provided, the resulting processed file would be uploaded to the destinationBucket under the destinationKey name.
# destination_key: str
# role: iam.Role


s3deploy.DeployTimeSubstitutedFile(self, "MyFile",
    source="my-file.yaml",
    destination_key=destination_key,
    destination_bucket=destination_bucket,
    substitutions={
        "variable_name": my_lambda_function.function_name
    },
    role=role
)

Parameters:

scope (Construct) –
id (str) –
destination_bucket (IBucket) – The S3 bucket to sync the contents of the zip file to.
source (str) – Path to the user’s local file.
substitutions (Mapping[str, str]) – User-defined substitutions to make in the file. Placeholders in the user’s local file must be specified with double curly brackets and spaces. For example, if you use the key ‘xxxx’ in the file, it must be written as: {{ xxxx }} to be recognized by the construct as a substitution.
destination_key (Optional[str]) – The object key in the destination bucket where the processed file would be written to. Default: - Fingerprint of the file content would be used as object key
role (Optional[IRole]) – Execution role associated with this function. Default: - A role is automatically created

Methods

add_source(source)

Add an additional source to the bucket deployment.

Parameters:

source (ISource) –

Return type:

None

Example:

# website_bucket: s3.IBucket

deployment = s3deploy.BucketDeployment(self, "Deployment",
    sources=[s3deploy.Source.asset("./website-dist")],
    destination_bucket=website_bucket
)

deployment.add_source(s3deploy.Source.asset("./another-asset"))

to_string()

Returns a string representation of this construct.

Return type:: str

Attributes

bucket

deployed_bucket

The bucket after the deployment.

If you want to reference the destination bucket in another construct and make sure the bucket deployment has happened before the next operation is started, pass the other construct a reference to deployment.deployedBucket.

Note that this only returns an immutable reference to the destination bucket. If sequenced access to the original destination bucket is required, you may add a dependency on the bucket deployment instead: otherResource.node.addDependency(deployment)

handler_role: Execution role of the Lambda function behind the custom CloudFormation resource of type Custom::CDKBucketDeployment.

node: The tree node.

object_key

object_keys

The object keys for the sources deployed to the S3 bucket.

This returns a list of tokenized object keys for source files that are deployed to the bucket.

This can be useful when using BucketDeployment with extract set to false and you need to reference the object key that resides in the bucket for that zip source file somewhere else in your CDK application, such as in a CFN output.

For example, use Fn.select(0, myBucketDeployment.objectKeys) to reference the object key of the first source file in your bucket deployment.

Static Methods

classmethod is_construct(x)

Checks if x is a construct.

Use this method instead of instanceof to properly detect Construct instances, even when the construct library is symlinked.

Explanation: in JavaScript, multiple copies of the constructs library on disk are seen as independent, completely different libraries. As a consequence, the class Construct in each copy of the constructs library is seen as a different class, and an instance of one class will not test as instanceof the other class. npm install will not create installations like this, but users may manually symlink construct libraries together or use a monorepo tool: in those cases, multiple copies of the constructs library can be accidentally installed, and instanceof will behave unpredictably. It is safest to avoid using instanceof, and using this type-testing method instead.

Parameters:: x (Any) – Any object.
Return type:: bool
Returns:: true if x is an object created from a class which extends Construct.