adding echo pod container

echo-pod/Dockerfile

@@ -0,0 +1,13 @@
+FROM nginx:alpine
+
+COPY ./html /usr/share/nginx/html
+
+COPY pod_name.sh /usr/local/bin/pod_name.sh
+
+RUN chmod +x /usr/local/bin/pod_name.sh
+
+ENTRYPOINT [ "/usr/local/bin/pod_name.sh" ]
+
+EXPOSE 80
+
+CMD ["nginx", "-g", "daemon_off;"]