chore(Dockerfile): Refactor image to use ubuntu-slim

Author: krancour

rootfs/Dockerfile

@@ -1,21 +1,40 @@
-FROM alpine:3.3
-
-# install common packages
-RUN apk add --update-cache curl bash openssl sudo && rm -rf /var/cache/apk/*
+FROM quay.io/deis/base:0.2.0
+
+RUN adduser --system \
+	--shell /bin/bash \
+	--disabled-password \
+	--home /app \
+	--group \
+	deis
+
+COPY . /app
+
+RUN apt-get update \
+	&& apt-get install -y \
+		gcc \
+		git \
+		libffi-dev \
+		libpq5 \
+		libpq-dev \
+		python3 \
+		python3-dev \
+		sudo \
+	&& ln -s /usr/bin/python3 /usr/bin/python \
+	&& curl -sSL https://bootstrap.pypa.io/get-pip.py | python - pip==8.1.1 \
+	&& mkdir -p /configs && chown -R deis:deis /configs \
+	&& pip install --disable-pip-version-check --no-cache-dir -r /app/requirements.txt \
+	&& apt-get remove -y --auto-remove --purge \
+		gcc \
+		git \
+		libffi-dev \
+		libpq-dev \
+		python3-dev \
+	&& apt-get clean \
+	&& rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/man /usr/share/doc
 
 # define execution environment
+WORKDIR /app
 CMD ["/app/bin/boot"]
 EXPOSE 8000
 
-# define work environment
-WORKDIR /app
-
-ADD build.sh /app/tmp/build.sh
-
-ADD requirements.txt /app/requirements.txt
-
-RUN DOCKER_BUILD=true /app/tmp/build.sh && rm -rf /app/*
-
-ADD . /app
-
-ENV WORKFLOW_RELEASE 2.0.0-dev
+ENV WORKFLOW_RELEASE 2.0.0

rootfs/bin/boot

@@ -17,11 +17,8 @@ mkdir -p /app/data/logs
 chmod -R 777 /app/data/logs
 
 # allow deis user group permission to Docker socket
-if addgroup -g "$(stat -c "%g" /var/run/docker.sock)" docker; then
-	addgroup deis docker
-else
-	addgroup deis "$(stat -c "%G" /var/run/docker.sock)"
-fi
+groupadd -g "$(stat -c "%g" /var/run/docker.sock)" docker || true
+usermod -a -G docker deis || true
 
 echo "Django checks:"
 python /app/manage.py check --deploy api