Smaller armv7l image. Setting up an automated nightly build for it.

docker/armv7l/Dockerfile

@@ -1,44 +1,55 @@
-# Get the base image by running the included `base.sh` script.
-FROM archlinuxarm/odroid-xu3:latest
+# Get the base image by running the included `mkimage-alpine.sh` script, or
+# get a fresh copy from github.com/docker/docker/contrib/.
+FROM alpine:edge
 
 # Copy app source.
 COPY . /tmp/build/
 
-# Sneak the stf and node executables into $PATH.
-ENV PATH /app/bin:/opt/node/bin:$PATH
+# Sneak the stf executable into $PATH.
+ENV PATH /app/bin:$PATH
 
 # Build the whole thing. Since Docker Hub doesn't really support other archs,
 # we'll run a full daily build by ourselves, so it doesn't necessary have to
 # be separated into multiple steps for speed.
-RUN set -x && \
-    useradd --system --create-home stf && \
-    echo 'Server = http://mirror.archlinuxarm.org/$arch/$repo' > /etc/pacman.d/mirrorlist && \
-    pacman -Sy && \
-    pacman --noconfirm -S zeromq protobuf git graphicsmagick yasm python2 pkg-config make gcc && \
-    curl -o /opt/node.tar.xz https://nodejs.org/dist/v5.3.0/node-v5.3.0-linux-armv7l.tar.xz && \
-    cd /opt && \
-    tar xf node.tar.xz && \
-    rm node.tar.xz && \
-    mv node-* node && \
+#
+# Node build taken from https://github.com/mhart/alpine-node and slightly adapted.
+RUN set -xo pipefail && \
+    echo '--- Updating repositories' && \
+    echo '@testing http://nl.alpinelinux.org/alpine/edge/testing' >> /etc/apk/repositories && \
+    apk update && \
+    echo '--- Building node' && \
+    apk add curl make gcc g++ binutils-gold python linux-headers paxctl libgcc libstdc++ && \
+    curl -sSL https://nodejs.org/dist/v5.7.0/node-v5.7.0.tar.gz | tar -xz && \
+    cd /node-v* && \
+    ./configure --prefix=/usr && \
+    make -j$(grep -c ^processor /proc/cpuinfo 2>/dev/null || 1) && \
+    make install && \
+    paxctl -cm /usr/bin/node && \
+    echo '--- Building app' && \
+    addgroup -S stf && \
+    adduser -S -G stf stf && \
     chown -R stf:stf /tmp/build && \
     cd /tmp/build && \
     export PATH=$PWD/node_modules/.bin:$PATH && \
     sed -i'' -e '/phantomjs/d' package.json && \
-    export JOBS=$(nproc) && \
-    runuser -u stf -- npm install --no-optional && \
-    runuser -u stf -- npm pack && \
-    mkdir -p /app && \
-    tar xf stf-*.tgz --strip-components 1 -C /app && \
-    runuser -u stf -- bower cache clean && \
-    runuser -u stf -- npm prune --production && \
+    apk add git zeromq-dev protobuf-dev graphicsmagick@testing && \
+    export JOBS=$(grep -c ^processor /proc/cpuinfo 2>/dev/null || 1) && \
+    echo 'npm install --no-optional' | su stf -s /bin/sh && \
+    echo '--- Assembling app' && \
+    echo 'npm pack' | su stf -s /bin/sh && \
+    tar -xzf stf-*.tgz && \
+    mv package /app && \
+    echo 'bower cache clean' | su stf -s /bin/sh && \
+    echo 'npm prune --production' | su stf -s /bin/sh && \
     mv node_modules /app && \
     chown -R root:root /app && \
-    runuser -u stf -- npm cache clean && \
+    echo '--- Cleaning up' && \
+    echo 'npm cache clean' | su stf -s /bin/sh && \
     rm -rf /home/stf/.node-gyp && \
-    cd /app && \
-    rm -rf /tmp/* && \
-    pacman --noconfirm -Rs git yasm python2 pkg-config make gcc && \
-    pacman --noconfirm -Sc
+    apk del curl make gcc g++ binutils-gold python linux-headers paxctl && \
+    rm -rf /node-v* \
+      /usr/share/man /tmp/* /var/cache/apk/* /root/.npm /root/.node-gyp \
+      /usr/lib/node_modules/npm/man /usr/lib/node_modules/npm/doc /usr/lib/node_modules/npm/html
 
 # Work in app dir by default.
 WORKDIR /app