1.204.0

interface BundlingOptions 🔹

LanguageType name
.NETAmazon.CDK.AWS.Lambda.Go.BundlingOptions
Javasoftware.amazon.awscdk.services.lambda.go.BundlingOptions
Pythonaws_cdk.aws_lambda_go.BundlingOptions
TypeScript (source)@aws-cdk/aws-lambda-go » BundlingOptions

Bundling options.

Example

new lambda.GoFunction(this, 'handler', {
  entry: 'app/cmd/api',
  bundling: {
    dockerImage: DockerImage.fromBuild('/path/to/Dockerfile'),
  },
});

Properties

NameTypeDescription
assetHash?🔹stringSpecify a custom hash for this asset.
assetHashType?🔹AssetHashTypeDetermines how the asset hash is calculated. Assets will get rebuilt and uploaded only if their hash has changed.
buildArgs?🔹{ [string]: string }Build arguments to pass when building the bundling image.
cgoEnabled?🔹booleanWhether or not to enable cgo during go build.
commandHooks?🔹ICommandHooksCommand hooks.
dockerImage?🔹DockerImageA custom bundling Docker image.
environment?🔹{ [string]: string }Environment variables defined when go runs.
forcedDockerBundling?🔹booleanForce bundling in a Docker container even if local bundling is possible.
goBuildFlags?🔹string[]List of additional flags to use while building.
goProxies?🔹string[]What Go proxies to use to fetch the packages involved in the build.

assetHash?🔹

Type: string (optional, default: based on assetHashType)

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.

assetHashType?🔹

Type: AssetHashType (optional, default: AssetHashType.OUTPUT. If assetHash is also specified, the default is CUSTOM.)

Determines how the asset hash is calculated. Assets will get rebuilt and uploaded only if their hash has changed.

If the asset hash is set to OUTPUT (default), the hash is calculated after bundling. This means that any change in the output will cause the asset to be invalidated and uploaded. Bear in mind that the go binary that is output can be different depending on the environment that it was compiled in. If you want to control when the output is changed it is recommended that you use immutable build images such as public.ecr.aws/bitnami/golang:1.16.3-debian-10-r16.

If the asset hash is set to SOURCE, then only changes to the source directory will cause the asset to rebuild. If your go project has multiple Lambda functions this means that an update to any one function could cause all the functions to be rebuilt and uploaded.

buildArgs?🔹

Type: { [string]: string } (optional, default: no build arguments are passed)

Build arguments to pass when building the bundling image.

cgoEnabled?🔹

Type: boolean (optional, default: false)

Whether or not to enable cgo during go build.

This will set the CGO_ENABLED environment variable

commandHooks?🔹

Type: ICommandHooks (optional, default: do not run additional commands)

Command hooks.

dockerImage?🔹

Type: DockerImage (optional, default: use the Docker image provided by)

A custom bundling Docker image.

environment?🔹

Type: { [string]: string } (optional, default: no environment variables are defined.)

Environment variables defined when go runs.

forcedDockerBundling?🔹

Type: boolean (optional, default: false)

Force bundling in a Docker container even if local bundling is possible.

goBuildFlags?🔹

Type: string[] (optional, default: none)

List of additional flags to use while building.

For example: ['ldflags "-s -w"']

goProxies?🔹

Type: string[] (optional, default: Direct access)

What Go proxies to use to fetch the packages involved in the build.

Pass a list of proxy addresses in order, and/or the string 'direct' to attempt direct access.

By default this construct uses no proxies, but a standard Go install would use the Google proxy by default. To recreate that behavior, do the following:

new lambda.GoFunction(this, 'GoFunction', {
   entry: 'app/cmd/api',
   bundling: {
     goProxies: [lambda.GoFunction.GOOGLE_GOPROXY, 'direct'],
   },
});
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