use node from source, added readme, upgraded to 8.9.2

Author: crispmark

Dockerfile

@@ -1,18 +1,49 @@
 FROM elixir:1.6.0
 
-ENV NVM_DIR /root/.nvm
-ENV NODE_VERSION=8.9.1
+ENV NODE_VERSION=8.9.2
 
-# install NVM
-RUN curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.4/install.sh | bash \
-    && . $NVM_DIR/nvm.sh \
-    && nvm install $NODE_VERSION \
-    && nvm alias default $NODE_VERSION \
-    && nvm use default
+RUN groupadd --gid 1000 node \
+  && useradd --uid 1000 --gid node --shell /bin/bash --create-home node
+
+# gpg keys listed at https://github.com/nodejs/node#release-team
+RUN set -ex \
+  && for key in \
+    94AE36675C464D64BAFA68DD7434390BDBE9B9C5 \
+    FD3A5288F042B6850C66B31F09FE44734EB7990E \
+    71DCFD284A79C3B38668286BC97EC7A07EDE3FC1 \
+    DD8F2338BAE7501E3DD5AC78C273792F7D83545D \
+    C4F0DFFF4E8C1A8236409D08E73BC641CC11F4C8 \
+    B9AE9905FFD7803F25714661B63B535A4C206CA9 \
+    56730D5401028683275BD23C23EFEFE93C4CFFFE \
+    77984A986EBC2AA786BC0F66B01FBB92821C587A \
+  ; do \
+    gpg --keyserver pgp.mit.edu --recv-keys "$key" || \
+    gpg --keyserver keyserver.pgp.com --recv-keys "$key" || \
+    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key" ; \
+  done
+
+RUN ARCH= && dpkgArch="$(dpkg --print-architecture)" \
+  && case "${dpkgArch##*-}" in \
+    amd64) ARCH='x64';; \
+    ppc64el) ARCH='ppc64le';; \
+    s390x) ARCH='s390x';; \
+    arm64) ARCH='arm64';; \
+    armhf) ARCH='armv7l';; \
+    i386) ARCH='x86';; \
+    *) echo "unsupported architecture"; exit 1 ;; \
+  esac \
+  && curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION-linux-$ARCH.tar.xz" \
+  && curl -SLO --compressed "https://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc" \
+  && gpg --batch --decrypt --output SHASUMS256.txt SHASUMS256.txt.asc \
+  && grep " node-v$NODE_VERSION-linux-$ARCH.tar.xz\$" SHASUMS256.txt | sha256sum -c - \
+  && tar -xJf "node-v$NODE_VERSION-linux-$ARCH.tar.xz" -C /usr/local --strip-components=1 --no-same-owner \
+  && rm "node-v$NODE_VERSION-linux-$ARCH.tar.xz" SHASUMS256.txt.asc SHASUMS256.txt \
+  && ln -s /usr/local/bin/node /usr/local/bin/nodejs
 
 # install python and awscli
 RUN apt-get update \
-    && apt-get -y install python-dev \
+    && apt-get install -y --no-install-recommends python-dev \
     && wget https://bootstrap.pypa.io/get-pip.py \
     && python get-pip.py \
-    && pip install awscli --upgrade
+    && pip install awscli --upgrade \
+    && apt-get clean

README.md

@@ -1,2 +1,6 @@
 # docker-elixir-node-aws
-Docker images for elixir/node/aws
+
+# Supported tags and respective `Dockerfile` links
+
+-	[`1.6.0-8.9.2`, `latest` (*Dockerfile*)](https://github.com/SweetIQ/docker-elixir-node-aws/blob/master/Dockerfile)
+-	[`1.6.0-8.9.2-alpine`, `alpine` (*alpine/Dockerfile*)](https://github.com/SweetIQ/docker-elixir-node-aws/blob/master/Dockerfile)

alpine/Dockerfile

@@ -1,6 +1,6 @@
 FROM elixir:1.6.0-alpine
 
-ENV NODE_VERSION=v8.9.1
+ENV NODE_VERSION=v8.9.2
 ENV NPM_VERSION=5
 
 # For base builds