Simplify & Improve Dockerfile

- Remove usage of install_rally
- Remove installation of not used packages
- Remove installation of python-pip from sources
- Put DB and Config on volume in /home/rally/.rally/

Change-Id: Ib48dda24056e2930c22dda75762a8f7c4ede29c0

Dockerfile

@@ -1,52 +1,21 @@
 FROM ubuntu:16.04
-MAINTAINER Sergey Skripnick <sskripnick@mirantis.com>
 
-# install prereqs
-RUN apt-get update && apt-get install --yes wget python vim bash-completion gcc lsb-release
+RUN apt-get update && apt-get install --yes sudo python python-pip vim git-core && \
+    pip install --upgrade pip && \
+    useradd -u 65500 -m rally && \
+    usermod -aG sudo rally && \
+    echo "rally ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/00-rally-user
 
-# ubuntu's pip is too old to work with the version of requests we
-# require, so get pip with get-pip.py
-RUN wget https://bootstrap.pypa.io/get-pip.py && \
-  python get-pip.py && \
-  rm -f get-pip.py
-
-# install bindep
-RUN pip install bindep
-
-# create rally user
-RUN apt-get install sudo && \
-  useradd -u 65500 -m rally && \
-  usermod -aG sudo rally && \
-  echo "rally ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/00-rally-user && \
-  ln -s /opt/rally/doc /home/rally/rally-docs
-
-# install rally. the COPY command below frequently invalidates
-# subsequent cache
-COPY . /tmp/rally
-WORKDIR /tmp/rally
-RUN ./install_rally.sh --system --verbose --yes \
-    --db-name /home/rally/.rally.sqlite && \
-  pip install -r optional-requirements.txt && \
-  mkdir /opt/rally/ && \
-  # TODO(andreykurilin): build docs to rst before move, since we have several
-  # extensions.
-  mv certification/ samples/ doc/ /opt/rally/ && \
-  chown -R rally /opt/rally /etc/rally && \
-  rm -rf /tmp/* && \
-  apt-get -y remove \
-    build-essential \
-    libxml2-dev \
-    libxslt1-dev \
-    python3 \
-  && \
-  apt-get -y autoremove && \
-  apt-get clean
+COPY . /home/rally/source
+WORKDIR /home/rally/source
 
+RUN pip install .
 RUN echo '[ ! -z "$TERM" -a -r /etc/motd ] && cat /etc/motd' \
             >> /etc/bash.bashrc; echo '\
 ╔═════════════════════════════════════════════════════════════════════════════╗\n\
 ║ Welcome to Rally Docker container!                                          ║\n\
-║  Rally certification tasks, samples and docs are located at /opt/rally/     ║\n\
+║  Rally certification tasks, samples and docs are located at ~/source/       ║\n\
+║  Rally configuration and DB are in ~/.rally/                                ║\n\
 ║  Rally at readthedocs - http://rally.readthedocs.org                        ║\n\
 ║  How to contribute - http://rally.readthedocs.org/en/latest/contribute.html ║\n\
 ║  If you have any questions, you can reach the Rally team by:                ║\n\
@@ -54,15 +23,16 @@ RUN echo '[ ! -z "$TERM" -a -r /etc/motd ] && cat /etc/motd' \
 ║    * irc - "#openstack-rally" channel at freenode.net                       ║\n\
 ╚═════════════════════════════════════════════════════════════════════════════╝\n' > /etc/motd
 
-VOLUME ["/home/rally"]
-
-WORKDIR /home/rally/
 USER rally
-ENV HOME /home/rally/
-CMD ["bash", "--login"]
+ENV HOME /home/rally
+WORKDIR /home/rally
+RUN mkdir .rally && \
+    cp ./source/etc/rally/rally.conf.sample .rally/rally.conf && \
+    sed -i "s|#connection *=.*|connection = \"sqlite:////home/rally/.rally/rally.db\"|" .rally/rally.conf && \
+    rally db recreate
 
-RUN rally-manage db recreate
-
-# TODO(stpierre): Find a way to use `rally` as the
-# entrypoint. Currently this is complicated by the need to run
-# rally-manage to create the database.
+# Docker volumes have specific behavior that allows this construction to work.
+# Data generated during the image creation is copied to volume only when it's
+# attached for the first time (volume initialization)
+VOLUME ["/home/rally"]
+ENTRYPOINT ["rally"]