Remove the Docker development environment

This development environment has not been maintained in a long time
and it doesn't work anymore. Let's remove it for now and reintroduce
containers when we start using OpenShift for development.

Dockerfile

@@ -1,39 +0,0 @@
-FROM fedora:24
-
-# so we don't have to compile those when fetched from PyPI
-RUN dnf install -y \
-        fedmsg-relay \
-        gcc \
-        git \
-        koji \
-        krb5-workstation \
-        python-devel \
-        python-flask \
-        python-m2ext \
-        python-mock \
-        python-pip \
-        python-qpid \
-        python-futures \
-        python2-cffi \
-        python2-cryptography \
-        python2-pdc-client \
-        python2-setuptools \
-        python2-zmq \
-        redhat-rpm-config \
-        rpm-build \
-        systemd-devel \
-        # Troubleshooting tools
-        findutils \
-        nc \
-        procps \
-        telnet \
-    && dnf autoremove -y \
-    && dnf clean all \
-    && mkdir /tmp/module_build_service/ \
-    && mkdir /etc/module-build-service/
-COPY . /tmp/module_build_service/
-WORKDIR /tmp/module_build_service/
-ENV MODULE_BUILD_SERVICE_DEVELOPER_ENV=1
-RUN python setup.py develop
-RUN python setup.py egg_info
-RUN pip install -r test-requirements.txt

docker-compose.yml

@@ -1,44 +0,0 @@
-version: "2"
-services:
-
-  base:
-    build: .
-    command: bash -c "mbs-upgradedb && touch /etc/module-build-service/.ready"
-    volumes:
-      - ./:/tmp/module_build_service:z
-      - /etc/module-build-service
-      - /tmp/module_build_service/module_build_service.egg-info
-
-  fedmsg-relay:
-    depends_on:
-      - base
-    build: .
-    command: bash -c "while [ ! -f /etc/module-build-service/.ready ] ; do sleep 1 ; done ; fedmsg-relay"
-    expose:
-      - 2001
-      - 2003
-    volumes_from:
-      - base
-
-  scheduler:
-    depends_on:
-      - base
-    build: .
-    command: bash -c "while [ ! -f /etc/module-build-service/.ready ] ; do sleep 1 ; done ; fedmsg-hub"
-    links:
-      - fedmsg-relay
-    volumes_from:
-      - base
-
-  frontend:
-    depends_on:
-      - base
-    build: .
-    command: bash -c "while [ ! -f /etc/module-build-service/.ready ] ; do sleep 1 ; done ; mbs-frontend"
-    ports:
-      - "5000:5000"
-    links:
-      - scheduler
-      - fedmsg-relay
-    volumes_from:
-      - base

docs/CONTRIBUTING.rst

@@ -50,41 +50,8 @@ Development
 In most cases, you don't need to deploy your development instance. Please,
 refer to the `Running Tests` section first.
 
-We have two mechanisms for quickly setting up a development environment,
-`docker-compose` and `vagrant`.
-
-Docker
-------
-
-You can use docker containers for development. Here's a guide on how to setup
-`docker <https://developer.fedoraproject.org/tools/docker/about.html>`_ and
-`docker-compose <https://developer.fedoraproject.org/tools/docker/compose.html>`_
-for Fedora users (it's just a `dnf install` away). Mac users should see `these
-docs <https://docs.docker.com/docker-for-mac/>`_.
-
-After your docker engine is set up and running and docker-compose is installed,
-you can start the entire development environment with a single command::
-
-    $ sudo docker-compose up
-
-That will start a number of services in containers, including the `frontend`
-and the backend `scheduler`.
-
-You may want to wipe your local development database from time to time. Try the
-following commands, and you should have a fresh environment::
-
-    $ rm module_build_service.db
-    $ docker-compose down -v && docker-compose up
-
-If things get really screwy and your containers won't start properly, the
-best thing to do is to rebuild the environment from scratch::
-
-    $ docker-compose down -v
-    $ docker-compose build --no-cache --pull
-
-The first command will stop and remove all your containers and volumes and
-the second command will pull the latest base image and perform a clean build
-without using the cache.
+The easiest way to setup a development environment is by using `vagrant`. You can see instructions
+about it below.
 
 Vagrant
 -------
@@ -150,10 +117,9 @@ Environment
 
 The environment variable `MODULE_BUILD_SERVICE_DEVELOPER_ENV`, which if
 set to "1", indicates to the Module Build Service that the development
-configuration should be used. Docker and Vagrant are being run with this
-environment variable set. This overrides all configuration settings and forces
-usage of DevConfiguration section in `conf/config.py` from MBS's develop
-instance.
+configuration should be used. Vagrant already runs with this environment variable set.
+This overrides all configuration settings and forces usage of DevConfiguration section
+in `conf/config.py` from MBS's develop instance.
 
 Prior to starting MBS, you can force development mode::
 

fedmsg.d/module_build_service.py

@@ -36,7 +36,7 @@ config = {
     # End of code signing configuration
 }
 
-# developer's instance (docker/vagrant/...)
+# developer's instance
 if 'MODULE_BUILD_SERVICE_DEVELOPER_ENV' in os.environ and \
    os.environ['MODULE_BUILD_SERVICE_DEVELOPER_ENV'].lower() in (
        '1', 'on', 'true', 'y', 'yes'):