(amplify): Enable the possibility to configure buildImage

Currently in codebuild it’s possible to configure in the section buildSpec the object environment and its property buildImage.

This property is ignored in an amplify hosting app.

Use Case

Codebuild, by default, uses a build image version that seems to be old. Newer versions has many new dependencies installed. What I’d like to configure is something like this:

        new amplify.App(this,  'test', {
            sourceCodeProvider: ...,
            buildSpec: codebuild.BuildSpec.fromObject({
                version: '1.0',
                frontend: {
                    ....
                    buildSpec: codebuild.BuildSpec.fromObject({
                        version: '1.0',
                        frontend: {
                           environment: {
                                buildImage: LinuxBuildImage.STANDARD_5_0,
                                privileged: true,
                                computeType: ComputeType.SMALL,
            ....
        },

The buildImage: LinuxBuildImage.STANDARD_5_0 has some dependecies missing in the current, default, old version, like jq (that seems to be exploited by many users in codebuild).

Proposed Solution

Please include buildSpec/environment/buildImage or a way to configure the image used by codebuild.

[fab-mindflow]

It looks like AWS::Amplify::App in CloudFormation has no custom build image property. If right, that means it is not even possible yet with Cfn constructs as a workaround.

[dbartholomae]

It’s in the Amplify docs, if I remember correctly. There just aren’t much details.