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

Author: krancour

Makefile

@@ -35,9 +35,8 @@ glideup:
 # the Docker environment. Other alternatives are cross-compiling, doing
 # the build as a `docker build`.
 build:
-	${DEV_ENV_PREFIX} -e CGO_ENABLED=0 ${DEV_ENV_IMAGE} go build -a -installsuffix cgo -ldflags ${LDFLAGS} -o ${BINARY_DEST_DIR}/boot boot.go
-	@$(call check-static-binary,$(BINARY_DEST_DIR)/boot)
-	${DEV_ENV_PREFIX} ${DEV_ENV_IMAGE} upx -9 ${BINARY_DEST_DIR}/boot
+	${DEV_ENV_CMD} go build -ldflags ${LDFLAGS} -o ${BINARY_DEST_DIR}/boot boot.go
+	${DEV_ENV_CMD} upx -9 ${BINARY_DEST_DIR}/boot
 
 test:
 	${DEV_ENV_CMD} sh -c 'go test $$(glide nv)'
@@ -55,12 +54,3 @@ docker-push:
 	docker push ${IMAGE}
 
 .PHONY: all build docker-compile kube-up kube-down deploy
-
-define check-static-binary
-	  if file $(1) | egrep -q "(statically linked|Mach-O)"; then \
-	    echo ""; \
-	  else \
-	    echo "The binary file $(1) is not statically linked. Build canceled"; \
-	    exit 1; \
-	  fi
-endef

rootfs/Dockerfile

@@ -1,37 +1,32 @@
-FROM alpine:3.3
+FROM quay.io/deis/base:0.2.0
 
-# specify the git user's home and name
-ENV GITHOME /home/git
-ENV GITUSER git
+RUN adduser --system \
+	--shell /bin/bash \
+	--disabled-password \
+	--home /home/git \
+	--group \
+	git
+	
+COPY . /
 
-ENV DEIS_BUILDER_SERVER_SSH_HOST_IP=0.0.0.0
-ENV DEIS_BUILDER_SERVER_SSH_HOST_PORT=2223
+RUN apt-get update \
+	&& apt-get install -y \
+		sudo \
+		git \
+		openssh-server \
+		coreutils \
+		tar \
+		xz-utils \
+		--no-install-recommends \
+	&& mkdir -p /var/run/sshd \
+	&& rm -rf /etc/ssh/ssh_host* \
+	&& mkdir /apps \
+	&& passwd -u git \
+	&& apt-get clean \
+	&& rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/man /usr/share/doc
 
+CMD ["/usr/bin/boot", "server"]
 EXPOSE 2223
 EXPOSE 3000
 
-# install common packages, install & configure the SSH server, and set up directories, users & perms.
-# NOTE: $GITUSER is added to docker group to use docker without sudo and to slug group in order to share resources with the slug user
-RUN apk add --update-cache \
-  bash \
-  sudo \
-  git \
-  openssh \
-  coreutils \
-  tar \
-  xz \
-  && rm -rf /var/cache/apk/* \
-  && mkdir -p /var/run/sshd && rm -rf /etc/ssh/ssh_host* \
-  && mkdir /apps \
-  && adduser -D -h $GITHOME $GITUSER \
-  && mkdir -p $GITHOME/.ssh && chown git:git $GITHOME/.ssh \
-  && chown -R $GITUSER:$GITUSER $GITHOME \
-  && addgroup -g 2000 slug && adduser -D -u 2000 -G slug slug \
-  && addgroup $GITUSER slug \
-  && passwd -u git
-
-COPY . /
-
-ENV WORKFLOW_RELEASE 2.0.0-dev
-
-ENTRYPOINT ["boot", "server"]
+ENV WORKFLOW_RELEASE 2.0.0