Deploy AWS Amplify Container to Graviton 2

Hi, I have currently deployed a container-based API service to Fargate using AWS Amplify's CLI. However, the container sits on a 0.5cpu x86 instance. How would I go about deploying this with Amplify to a graviton-based instance, or specify memory-cpu configurations? Thanks.

Docker File: created by Amplify:

FROM public.ecr.aws/bitnami/node:14-prod-debian-10

ENV PORT=8080 EXPOSE 8080

WORKDIR /usr/src/app

COPY package*.json ./ RUN npm install COPY . .

CMD [ "node", "index.js" ]