make: introduce makefile for testing/building

All tests will be run locally in a docker container built/rebuilt on
demand.

All integration tests will be run locally in a cluster created by
DCOS E2E.

.dockerignore

@@ -1,8 +1,8 @@
 .git
 build.bash
 tests
-requirements-dev.txt
 hooks
 scripts
 .*
 Dockerfile
+Makefile

.gitignore

@@ -1,6 +1,7 @@
 .idea
 templates/
 __pycache__
+.pytest_cache
 *.pyc
 .env
 .cache

Dockerfile.dcos-e2e

@@ -0,0 +1,23 @@
+FROM python:3-alpine
+
+ARG DCOS_E2E_VERSION=2018.12.10.0
+
+RUN apk add --no-cache --virtual .build \
+        git \
+        gcc \
+        libc-dev \
+        libffi-dev \
+        libressl-dev \
+        make \
+ && apk add --no-cache \
+        bash \
+        jq \
+        docker \
+        openssh-client \
+        sed \
+ && git -c advice.detachedHead=false \
+        clone --quiet --depth 1 --branch "${DCOS_E2E_VERSION}" \
+        https://github.com/dcos/dcos-e2e.git /usr/src/dcos-e2e \
+ && pip3 install /usr/src/dcos-e2e \
+ && rm -fr /usr/src/dcos-e2e \
+ && apk del --purge .build

Dockerfile.devkit

@@ -0,0 +1,31 @@
+FROM debian:buster
+
+ENV LANG=C.UTF-8
+
+RUN set -x \
+    && apt-get update \
+    && apt-get install -y --no-install-recommends \
+        ca-certificates \
+        docker.io \
+        gcc \
+        git \
+        jq \
+        libcurl4-openssl-dev \
+        libssl-dev \
+        python3-dev \
+        python3-pip \
+        python3-setuptools
+
+ADD requirements-dev.txt /marathon-lb/requirements-dev.txt
+
+RUN set -x \
+    && pip3 install \
+        --no-cache \
+        --upgrade \
+        --force-reinstall \
+        -r /marathon-lb/requirements-dev.txt
+
+ADD . /marathon-lb
+WORKDIR /marathon-lb
+
+CMD ["/bin/bash"]