Dockerfile for building a custom image of squoosh.app

SquooshDockerfile

FROM alpine/git AS git
RUN mkdir /app
WORKDIR /app
RUN git clone https://github.com/GoogleChromeLabs/squoosh.git .

FROM node:14-alpine AS builder
WORKDIR /app
COPY --from=git /app/package*.json ./
RUN npm install
COPY --from=git /app .
RUN npm run build

FROM nginx:alpine
LABEL org.label-schema.name="pjmeca/squoosh" \
    org.label-schema.description="Custom image for running squoosh.app locally." \
    org.label-schema.url="https://hub.docker.com/r/pjmeca/squoosh" \
    org.label-schema.vcs-url="https://gist.github.com/pjmeca/27e97435d2925de07aeabc0e152f99b6" \
    org.label-schema.version="1.0.0" \
    org.label-schema.schema-version="1.0.0-rc.1" \
    org.label-schema.docker.cmd="docker run -d -p 80:80 pjmeca/squoosh" \
    maintainer="pjmeca"
WORKDIR /usr/share/nginx/html
COPY --from=builder /app/build .
RUN rm -rf ./sw.js
CMD ["nginx", "-g", "daemon off;"]