codacy issues fix

mpwo_api/Dockerfile

@@ -1,17 +1,19 @@
 FROM python:3.6.3
 
+MAINTAINER SamR1
+
 # set working directory
 RUN mkdir -p /usr/src/app
 WORKDIR /usr/src/app
 
 # add requirements
-ADD ./requirements.txt /usr/src/app/mpwo_api/requirements.txt
+COPY ./requirements.txt /usr/src/app/mpwo_api/requirements.txt
 
 # install requirements
 RUN pip install -r mpwo_api/requirements.txt
 
 # add app
-ADD . /usr/src/app
+COPY . /usr/src/app
 
 # run server
 CMD flask run --with-threads -h 0.0.0.0

mpwo_api/db/Dockerfile

@@ -1,3 +1,5 @@
-FROM postgres
+FROM postgres:10.1
 
-ADD create.sql /docker-entrypoint-initdb.d
+MAINTAINER SamR1
+
+COPY create.sql /docker-entrypoint-initdb.d