Resolve a gihub python-processor issue 2

dataflow-website/recipes/polyglot/polyglot-python-processor/README.md

@@ -0,0 +1,67 @@
+Build docker image:
+
+`$ docker build -t chrisjs/python-processor:latest .`
+
+Push to Docker Hub if desired:
+
+`$ docker push chrisjs/python-processor:latest`
+
+NOTE: replace `chrisjs` with your docker hub user/org
+
+
+Register a stream using this processor in between `http` and `log`:
+
+```
+dataflow:>app import --uri http://bit.ly/Einstein-SR2-stream-applications-kafka-docker
+dataflow:>app register --type processor --name python-processor --uri docker://chrisjs/python-processor:latest
+```
+
+NOTE: replace `chrisjs` with your docker hub user/org
+
+This example uses minikube as the target k8s env.
+
+Get IP:
+
+```
+$ minikube ip
+192.168.99.104
+```
+
+Watch logs:
+
+```
+$ kubectl logs -f <log pod name>
+```
+
+Post and log a string:
+
+```
+dataflow:>stream create --name test --definition "http --server.port=32123 | python-processor | log"
+dataflow:>stream deploy test --properties "deployer.http.kubernetes.createNodePort=32123"
+dataflow:>http post --target http://192.168.99.104:32123 --data "hello world"
+> POST (text/plain) http://192.168.99.104:32123 hello world
+> 202 ACCEPTED
+```
+
+Inspect logs for posted message:
+
+```
+INFO 1 --- [container-0-C-1] log-sink                                 : hello world
+```
+
+Post and log a reversed string:
+
+```
+dataflow:>stream create --name test --definition "http --server.port=32123 | python-processor --reverestring=true  | log"
+dataflow:>stream deploy test --properties "deployer.http.kubernetes.createNodePort=32123"
+dataflow:>http post --target http://192.168.99.104:32123 --data "hello world"
+> POST (text/plain) http://192.168.99.104:32123 hello world
+> 202 ACCEPTED
+```
+
+Inspect logs for posted message:
+
+```
+INFO 1 --- [container-0-C-1] log-sink                                 : dlrow olleh
+```
+