Dockerfile

FROM buildpack-deps:jessie

# gpg keys listed at https://github.com/nodejs/io.js
RUN gpg --keyserver pool.sks-keyservers.net --recv-keys \
  9554F04D7259F04124DE6B476D5A82AC7E37093B \
  DD8F2338BAE7501E3DD5AC78C273792F7D83545D \
  FD3A5288F042B6850C66B31F09FE44734EB7990E

ENV NPM_CONFIG_LOGLEVEL info
ENV IOJS_VERSION 2.4.0

RUN curl -SLO "https://iojs.org/dist/v$IOJS_VERSION/iojs-v$IOJS_VERSION-linux-x64.tar.gz" \
  && curl -SLO "https://iojs.org/dist/v$IOJS_VERSION/SHASUMS256.txt.asc" \
  && gpg --verify SHASUMS256.txt.asc \
  && grep " iojs-v$IOJS_VERSION-linux-x64.tar.gz\$" SHASUMS256.txt.asc | sha256sum -c - \
  && tar -xzf "iojs-v$IOJS_VERSION-linux-x64.tar.gz" -C /usr/local --strip-components=1 \
  && rm "iojs-v$IOJS_VERSION-linux-x64.tar.gz" SHASUMS256.txt.asc

CMD [ "iojs" ]