Dockerfile

FROM node:wheezy

RUN apt-get -y update && \
apt-get -y install git build-essential && \
mkdir -p /app && \
cd /app && \
git clone https://github.com/sourcelair/xterm.js.git && \
cd xterm.js && \
npm install

WORKDIR /app/xterm.js

CMD ["npm", "start"]

Dockerfile.NG

# did not work

FROM node:alpine

RUN apk --no-cache add git make gcc g++ python linux-headers paxctl gnupg bash && \
mkdir -p /app && \
cd /app && \
git clone https://github.com/sourcelair/xterm.js.git && \
npm install --global node-gyp && \
cd xterm.js && \
npm install

WORKDIR /app/xterm.js

CMD ["npm", "start"]