Copy "workflow" doc to top level of docs

And rewrite as markdown for consistency with other OCP docs

Author: danwinship

README.md

@@ -70,4 +70,4 @@ as part of the cluster. This includes:
     "unidling" mode.
 
 ## Development 
-See [Development workflow](./docs/source/openshift_sdn/workflow.rst)
+See [Development workflow](./docs/workflow.md)

docs/workflow.md

@@ -0,0 +1,106 @@
+# Development Workflow
+
+## Get the code
+
+```
+  $ git clone https://github.com/openshift/openshift-sdn.git
+  $ git clone https://github.com/openshift/cluster-network-operator.git
+```
+
+## Do your changes
+
+## Create the image
+
+```
+  $ make build-image-sdn-test
+```
+
+This will call podman under the hood and it'll create an image with your
+changes for openshift/sdn
+
+## Push your image to quay.io
+
+```
+  $ podman push sdn-test quay.io/<your_quay_user>/sdn-test:latest
+  Getting image source signatures
+  Copying blob 5d372c8d2def done
+  Copying blob f8c626b0e778 done
+  Copying blob 660ab9198463 done
+  Copying blob 9ed8d791092a done
+  Copying blob b174dfe5972b done
+  Copying blob 0ccfac04663b skipped: already exists
+  Copying blob 577bed1928c2 done
+  Copying blob d2af519c9d8e done
+  Copying blob 25cd2a8f7dec done
+  Copying blob 08fc1691d013 done
+  Copying blob 95b8292eb455 done
+  Copying config cff2b47201 done
+  Writing manifest to image destination
+  Copying config cff2b47201 [--------------------------------------] 0.0b / 4.5KiB
+  Writing manifest to image destination
+  Writing manifest to image destination
+  Storing signatures
+```
+
+## Deploy a cluster with your changes
+
+### Using Cluster Network Operator
+
+ 1. Create a directory for your deployment
+
+```
+    $ mkdir /tmp/deployment
+```
+
+ 2. Get your openshift-install binary and your pull-secrets
+
+ 3. Go to your Cluster Network Operator (CNO) Directory
+
+ 4. Run hack/run-locally
+
+```
+    $ hack/run-locally.sh -i <your_openshift_install_path> \
+          -c <your_install_directory> -n <sdn|ovn> \
+	  -m <your_quay_image_path>
+```
+
+### Using Cluster-Bot
+
+This assumes you already have a PR around, and access to cluster-bot under the
+CoreOS Slack channel.
+
+Just query cluster-bot and send him a message with the following:
+
+```
+  launch openshift/sdn#<PR_NUMBER> aws
+```
+
+## Update your CNO image without deleting your cluster
+
+```
+  update_cno ()
+  {
+      oc patch clusterversion version --type json -p '[{"op":"add","path":"/spec/overrides","value":[{"kind":"Deployment","group":"apps","name":"network-operator","namespace":"openshift-network-operator","unmanaged":true}]}]'
+  }
+
+  custom_sdn ()
+  {
+      update_cno;
+      oc -n openshift-network-operator delete deployment network-operator;
+      oc -n openshift-sdn set image ds/sdn sdn=quay.io/<your_quay_user>/sdn-test
+  }
+```
+
+## Destroying your cluster once you're done
+
+### Using Openshift Installer
+
+```
+  $ openshift-install destroy cluster --dir <your_install_directory>
+```
+
+### Using Cluster-Bot
+
+```
+  done
+```