FROM buildpack-deps:jessie

# verify gpg and sha256: http://nodejs.org/dist/v0.10.30/SHASUMS256.txt.asc
# gpg: aka "Timothy J Fontaine (Work) <tj.fontaine@joyent.com>"
# gpg: aka "Julien Gilli <jgilli@fastmail.fm>"
RUN gpg --keyserver pool.sks-keyservers.net --recv-keys 7937DFD2AB06298B2293C3187D33FF9D0246406D 114F43EE0176B71C7BC219DD50A3051F888C628D

ENV NODE_VERSION 0.8.28
ENV NPM_VERSION 2.5.0

RUN curl -SLO "http://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION-linux-x64.tar.gz" \
	&& curl -SLO "http://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc" \
	&& gpg --verify SHASUMS256.txt.asc \
	&& grep " node-v$NODE_VERSION-linux-x64.tar.gz\$" SHASUMS256.txt.asc | sha256sum -c - \
	&& tar -xzf "node-v$NODE_VERSION-linux-x64.tar.gz" -C /usr/local --strip-components=1 \
	&& rm "node-v$NODE_VERSION-linux-x64.tar.gz" SHASUMS256.txt.asc \
	&& npm install -g npm@1.4.28 \
	&& npm install -g npm@"$NPM_VERSION" \
	&& npm cache clear

# note: we have to install npm 1.4.28 first because we can't go straight from 1.2 -> 2.0
# see also https://github.com/docker-library/node/issues/15#issuecomment-57879931

CMD [ "node" ]