Deploy docker image of react app to Elastic beanstalk – Nginx

I am trying to deploy my create-react-app to elastic bean stalk with docker
I have setup codepipeline with codebuild and elastic beanstalk.

I am getting this error

Stop running the command. Error: Dockerfile and Dockerrun.aws.json are both missing, abort deployment 

My Dockerfile looks like this

FROM tiangolo/node-frontend:10 as build-stage  
# Create app directory  
# RUN mkdir -p /usr/src/app  
# WORKDIR /usr/src/app  
  
WORKDIR /app  
  
  
# # fix npm private module  
# ARG NPM_TOKEN  
# COPY .npmrc /app/  
#COPY package.json package.json  
  
COPY package*.json /app/ 
COPY Dockerrun.aws.json /app/  
RUN npm install  
COPY ./ /app/  
# RUN CI=true npm test  
RUN npm run build  
  
# FROM nginx:1.15  
FROM nginx:1.13.3-alpine   
  
# Install app dependencies  
  
# Stage 1, based on Nginx, to have only the compiled app, ready for production with Nginx  
COPY --from=build-stage /app/build/ /usr/share/nginx/html  
# Copy the default nginx.conf provided by tiangolo/node-frontend  
COPY --from=build-stage /nginx.conf /etc/nginx/conf.d/default.conf  
  
RUN ls   
EXPOSE 80  

I also have a Dockerrun.aws.json

{
  "AWSEBDockerrunVersion": "3",
  "Image": {
    "Name": "something.dkr.ecr.us-east-2.amazonaws.com/subscribili:latest",
    "Update": "true"
  },
  "Ports": [
    {
      "ContainerPort": "5000"
    }
  ],
  "Logging": "/var/log/nginx"
}

my buildspec.yml file looks like this

version: 0.2
phases:
  pre_build:
    commands:
      - $(aws ecr get-login --region $AWS_DEFAULT_REGION --no-include-email)
      - REPOSITORY_URI=something.dkr.ecr.us-east-2.amazonaws.com/subscribili
      - COMMIT_HASH=$(echo $CODEBUILD_RESOLVED_SOURCE_VERSION | cut -c 1-7)
      - IMAGE_TAG=${COMMIT_HASH:=latest}
  build:
    commands:
      - docker build -t $REPOSITORY_URI:latest .
      - docker tag $REPOSITORY_URI:latest $REPOSITORY_URI:$IMAGE_TAG
  post_build:
    commands:
      - docker push $REPOSITORY_URI:latest
      - docker push $REPOSITORY_URI:$IMAGE_TAG
      - printf '[{"name":"nginx","imageUri":"%s"}]' $REPOSITORY_URI:$IMAGE_TAG > imagedefinitions.json
artifacts:
  files: imagedefinitions.json

I am sure there is some issue with buildspec file but I am just not sure what.

I have read all the documentation still couldn’t figure out how to write the buildspec file Docker.
Is there anything I am missing?