[DOCKER] Dockerfile reac app build

# pull official base image
FROM node:14 AS builder

# set working directory
WORKDIR /app

# install app dependencies
#copies package.json and package-lock.json to Docker environment
COPY package.json ./

# Installs all node packages
RUN npm install 


# Copies everything over to Docker environment
COPY . ./
RUN npm run build

#Stage 2
#######################################
#pull the official nginx:1.19.0 base image
FROM nginx:1.19.0

#copies React to the container directory
# Set working directory to nginx resources directory
WORKDIR /usr/share/nginx/html

# Remove default nginx static resources
RUN rm -rf ./*

# Copies static resources from builder stage
COPY --from=builder /app/build .

EXPOSE 8080

# Containers run nginx with global directives and daemon off
ENTRYPOINT ["nginx", "-g", "daemon off;"]

docker build -t example-react-app .
docker run — rm -it -p 8080:80 example-react-app