fix for workshop3 app and dockerfiles for python 3

Author: amui

workshop-3/app/like-service/Dockerfile

@@ -1,13 +1,13 @@
 FROM ubuntu:latest
 RUN echo Updating existing packages, installing and upgrading python and pip.
 RUN apt-get update -y
-RUN apt-get install -y python-pip python-dev build-essential
-RUN pip install --upgrade pip
+RUN apt-get install -y python3-pip python-dev build-essential
+RUN pip3 install --upgrade pip
 RUN echo Copying the Mythical Mysfits Flask service into a service directory.
 COPY ./service /MythicalMysfitsService
 WORKDIR /MythicalMysfitsService
 RUN echo Installing Python packages listed in requirements.txt
-RUN pip install -r ./requirements.txt
+RUN pip3 install -r ./requirements.txt
 RUN echo Starting python and starting the Flask service...
-ENTRYPOINT ["python"]
+ENTRYPOINT ["python3"]
 CMD ["mysfits_like.py"]

workshop-3/app/like-service/service/mysfits_like.py

@@ -6,7 +6,7 @@
 import sys
 import logging
 import random
-from urlparse import urlparse
+from urllib.parse import urlparse
 from flask import Flask, jsonify, json, Response, request, abort
 from flask_cors import CORS
 

workshop-3/app/like-service/service/requirements.txt

@@ -1,3 +1,3 @@
 Flask==1.0.0
 flask-cors==3.0.0
-requests==1.2.3
+requests==2.20.0

workshop-3/app/monolith-service/Dockerfile

@@ -1,13 +1,13 @@
 FROM ubuntu:latest
 RUN echo Updating existing packages, installing and upgrading python and pip.
 RUN apt-get update -y
-RUN apt-get install -y python-pip python-dev build-essential
-RUN pip install --upgrade pip
+RUN apt-get install -y python3-pip python-dev build-essential
+RUN pip3 install --upgrade pip
 RUN echo Copying the Mythical Mysfits Flask service into a service directory.
 COPY ./service /MythicalMysfitsService
 WORKDIR /MythicalMysfitsService
 RUN echo Installing Python packages listed in requirements.txt
-RUN pip install -r ./requirements.txt
+RUN pip3 install -r ./requirements.txt
 RUN echo Starting python and starting the Flask service...
-ENTRYPOINT ["python"]
+ENTRYPOINT ["python3"]
 CMD ["mythicalMysfitsService.py"]