add dockerfile and readme

docker/Dockerfile

@@ -0,0 +1,12 @@
+FROM centos:7
+
+RUN yum install -y python3 curl
+COPY src/requirements.txt /tmp/requirements.txt
+
+RUN pip3 install -r /tmp/requirements.txt
+
+COPY src/ /python_api/
+
+EXPOSE 5290
+
+CMD ["python3", "/python_api/python-api.py"]

readme.md

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+## Part of homework 9.6
+
+Сборка образа:
+
+```shell
+docker build -t localhost/python-api:latest -f docker/Dockerfile .
+```