docker example to install wavedrom-cli on Alpine Linux

Dockerfile

# Best hint exists here: https://github.com/Automattic/node-canvas/issues/1486#issuecomment-547841042
# This would not occur on debian/ubuntu based environment/images
FROM node:12.22-alpine3.12

RUN apk add --update --no-cache \
    make \
    g++ \
    jpeg-dev \
    cairo-dev \
    giflib-dev \
    pango-dev \
    python3

RUN npm config set unsafe-perm true && \
    npm i canvas --build-from-source && \
    npm i wavedrom-cli -g