Rework Docker on Alpine

Dockerfile

@@ -1,2 +1,6 @@
-FROM python:3.6-onbuild
+FROM python:3.6-alpine
 MAINTAINER BJ Dierkes <derks@datafolklabs.com>
+WORKDIR /app
+COPY . /app
+RUN python setup.py install \
+    && rm -rf /app

docker-compose.yml

@@ -6,6 +6,8 @@ services:
             context: .
             dockerfile: docker/Dockerfile.dev
         hostname: cement
+        stdin_open: true
+        tty: true
         volumes:
             - ".:/usr/src/app"
         links:

docker/Dockerfile.dev

@@ -1,9 +1,14 @@
-FROM python:3.6-onbuild
+FROM python:3.6-alpine
 MAINTAINER BJ Dierkes <derks@datafolklabs.com>
-
-RUN apt-get update \
-    && apt-get install -y --no-install-recommends \
-        libmemcached-dev \
+WORKDIR /app
+COPY requirements-dev.txt /app/
+RUN apk update \
+    && apk add libmemcached-dev \
+        gcc \
+        musl-dev \
+        cyrus-sasl-dev \
+        zlib-dev \
+        make \
     && pip install --no-cache-dir -r requirements-dev.txt
-
-CMD ["/bin/bash"]
+COPY . /app
+CMD ["/bin/ash"]

requirements-dev.txt

@@ -1,4 +1,4 @@
-# The following are only required in development, not production
+# The following are only required for Cement development
 nose
 coverage
 sphinx

requirements.txt

@@ -1 +1,3 @@
-# Cement does not have any external dependencies
+# Cement core does not have any external dependencies, however optional
+# extension might.  It is up to the application developer to manage
+# requirements for optional extensions/dependencies.