Adding Dockerfile and buildspec.yml

Dockerfile

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+FROM node:16-alpine
+ENV AWS_CLI_VERSION 1.15.47
+WORKDIR /app
+
+#copy all the app files
+COPY . .
+
+RUN apk --no-cache update
+
+RUN apk add --no-cache build-base rsync git
+
+#install packages for aws-env
+RUN apk add --no-cache python3 py-pip py-setuptools groff less openssl ca-certificates bash && \
+  pip --no-cache-dir install awscli==${AWS_CLI_VERSION} && \
+  rm -rf /var/cache/apk/*
+
+#Download aws-env
+RUN wget https://github.com/Droplr/aws-env/raw/master/bin/aws-env-linux-amd64 -O /bin/aws-env && chmod +x /bin/aws-env
+
+#Install dependencies and build
+RUN yarn install && yarn build && yarn add serve
+
+CMD eval $(aws-env) && yarn serve build

buildspec.yml

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+version: 0.2
+
+env:
+  git-credential-helper: yes
+  parameter-store:
+    DOCKER_HUB_USER: '/devops/shared/DOCKER_HUB_USER'
+    DOCKER_HUB_PASSWORD: '/devops/shared/DOCKER_HUB_PASSWORD'
+
+phases:
+  install:
+    runtime-versions:
+      nodejs: 14
+    commands:
+      - n 16
+      - npm update -g npm
+      - aws --version
+      - node -v
+  pre_build:
+    commands:
+      - export APP_BUILD_VERSION=${CODEBUILD_RESOLVED_SOURCE_VERSION}__$(date -u '+%Y-%m-%dT%T+00:00')
+      - echo $APP_BUILD_VERSION > ./src/.version
+      - cat ./src/.version
+      - aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin $DOCKER_REPOSITORY_URI
+      - IMAGE_TAG=$(echo $CODEBUILD_RESOLVED_SOURCE_VERSION | cut -c 1-7)
+  build:
+    commands:
+      - echo $DOCKER_HUB_PASSWORD | docker login --username $DOCKER_HUB_USER --password-stdin
+      - docker build -t $DOCKER_REPOSITORY_URI:latest .
+      - docker tag $DOCKER_REPOSITORY_URI:latest $DOCKER_REPOSITORY_URI:$IMAGE_TAG
+  post_build:
+    commands:
+      - docker push $DOCKER_REPOSITORY_URI:latest
+      - docker push $DOCKER_REPOSITORY_URI:$IMAGE_TAG
+      - printf '[{"name":"%s","imageUri":"%s"}]' $CONTAINER_NAME $DOCKER_REPOSITORY_URI:$IMAGE_TAG > imagedefinitions.json
+artifacts:
+  files:
+    - imagedefinitions.json