React, node, mysql docker compose setup

docker-compose.yml

version: '3.5'
services:

  client:
    image: client
    ports:
      - "3000:3000"

  api:
    image: server
    volumes:
      - ./data/filestorage:/opt/files
    ports:
      - "8080:8080"

  mysql:
    image: mysql:8
    environment:
      - MYSQL_ROOT_PASSWORD=thibaut
      - MYSQL_DATABASE=groupomania_social
    ports:
      - "3306:3306"

Dockerfile.client - npm

FROM node:12.15.0-alpine as build
WORKDIR /app
ENV PATH /app/node_modules/.bin:$PATH
RUN apk --no-cache upgrade && apk --no-cache add alpine-sdk python2 libtool autoconf automake git

COPY . ./

RUN npm ci

ENV NODE_ENV production
RUN npm run build

FROM node:12.15.0-alpine
WORKDIR /app

COPY package*.json ./

RUN npm ci --only=production
RUN npm install -g serve

COPY --from=build /app/build ./build/

EXPOSE 3000

CMD serve -s build -l 3000

Dockerfile.server

FROM node:14

WORKDIR /usr/src/app

COPY package*.json ./

RUN npm ci --only=production

COPY . .

EXPOSE 8080
CMD [ "node", "server.js" ]