Update Shipyard Dockerfile

Update dockerfile to install SQLAlchemy and allow
connectivity to postgresql DB.  Added requirements
for PasteDeploy and KeystoneMiddleWare.

1) Update Shipyard Dockerfile
2) Move packages for pip install from Dockerfile to
   requirements.txt so as to consolidate requirements
   into 1 single file
3) Align with the version used in DryDock for uwsgi,
   PasteDeploy and keystonemiddleware

Change-Id: I92b794dd7fdbd54c3652ae546a06e86f1593c456

Dockerfile

@@ -35,13 +35,9 @@ RUN set -x && \
     make \
     libffi-dev \
     libssl-dev \
+    libpq-dev \
     --no-install-recommends \
     && python3 -m pip install -U pip \
-    && pip3 install falcon \
-    && pip3 install requests \
-    && pip3 install uwsgi \
-    && pip3 install configparser \
-    && pip3 install python-openstackclient==3.11.0 \
     && apt-get clean \
     && rm -rf \
         /var/lib/apt/lists/* \
@@ -51,6 +47,10 @@ RUN set -x && \
         /usr/share/doc \
         /usr/share/doc-base
 
+# Copy dependency requirements
+COPY ./requirements.txt /tmp/
+RUN pip3 install -r /tmp/requirements.txt
+
 # Create shipyard user
 RUN useradd -ms /bin/bash shipyard
 

requirements.txt

@@ -1,3 +1,10 @@
 falcon==1.2.0
 python-dateutil==2.6.1
-requests==2.18.3
+requests==2.18.4
+uwsgi===2.0.15
+configparser==3.5.0
+python-openstackclient==3.11.0
+SQLAlchemy==1.1.13
+psycopg2==2.7.3.1
+PasteDeploy==1.5.2
+keystonemiddleware===4.9.1

test-requirements.txt

@@ -3,7 +3,6 @@ pytest==3.2.1
 mock==2.0.0
 testfixtures==5.1.1
 apache-airflow[crypto,celery,postgres,hive,hdfs,jdbc]==1.8.1
-psycopg2==2.7.3
 
 # Linting
 flake8==3.3.0