Add Wal-E backup support

db/Dockerfile

@@ -1,3 +1,18 @@
 FROM postgres:9.4
- 
+
+RUN apt-get update \
+    && apt-get install -y python-dev lzop pv daemontools curl build-essential \
+    && curl --silent --show-error --retry 5 https://bootstrap.pypa.io/get-pip.py | python \
+    && pip install wal-e \
+    && apt-get remove -y build-essential python-dev \
+    && apt-get autoremove -y \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
 ADD make_db.sh /docker-entrypoint-initdb.d/
+ADD setup-wale.sh /docker-entrypoint-initdb.d/
+COPY docker-entrypoint1.sh /
+
+ENTRYPOINT ["/docker-entrypoint1.sh"]
+
+CMD ["postgres"]