Docker mix and match setup

Rewrite of the docker setup. Now uses fig to manage containers and container
linkage. The base is a block based mix and match, which will give you the
possibility to easily test all configurations.

docker/blocks/docker_gogs_dev/Dockerfile

@@ -0,0 +1,52 @@
+FROM ubuntu:14.04
+
+# This part is taken from the official docker image --------------------
+
+RUN apt-get update && apt-get install -y \
+		build-essential ca-certificates curl \
+		bzr git mercurial \
+		--no-install-recommends
+
+ENV GOLANG_VERSION 1.3
+
+RUN curl -sSL http://golang.org/dl/go$GOLANG_VERSION.src.tar.gz \
+	| tar -v -C /usr/src -xz
+WORKDIR /usr/src/go
+
+RUN cd src && ./make.bash --no-clean 2>&1
+
+ENV PATH /usr/src/go/bin:$PATH
+
+RUN mkdir -p /go/src
+ENV GOPATH /go
+ENV PATH /go/bin:$PATH
+WORKDIR /go
+
+# ----------------------------------------------------------------------
+
+
+RUN useradd -m git
+
+ENV GOGS_PATH $GOPATH/src/github.com/gogits/gogs
+ENV GOGS_CUSTOM_CONF_PATH $GOGS_PATH/custom/conf
+ENV GOGS_CUSTOM_CONF $GOGS_CUSTOM_CONF_PATH/app.ini
+
+RUN go get -u -d github.com/gogits/gogs
+# WORKDIR $GOGS_PATH
+WORKDIR /go/src/github.com/gogits/gogs
+RUN git checkout dev; go get -u; git checkout dev; go build
+RUN chown -R git $GOGS_PATH
+
+ADD init_gogs.sh /tmp/
+RUN chown git /tmp/init_gogs.sh
+RUN chmod +x /tmp/init_gogs.sh
+
+USER git
+ENV HOME /home/git
+ENV USER git
+ENV PATH $GOGS_PATH:$PATH
+
+RUN git config --global user.name "GoGS"
+
+ENTRYPOINT ["/tmp/init_gogs.sh"]
+CMD ["gogs", "web"]