docs: adding instructions for building pipeline image

README.md

@@ -11,8 +11,6 @@ This project provides a Kubernetes operator for managing Flink jobs using a Krat
 - Kratix [see install guide](https://docs.kratix.io/main/guides/installing-kratix/single-cluster)
 - Docker environment with the ability to build images for both amd64 or arm64 architectures.
 
-
-
 ### Test Changes
 ```bash
 
@@ -29,38 +27,63 @@ cargo build
 cargo test -- --test-threads=1 # 1 thread is required only otherwise it will fail due to file managment
 ```
 
+### Setup
+
+#### Creating the workflow image
+
+First, build the requisite workflow docker image. Two are available, based on Rust and shell. Both are functionally equivalent.
 
-### Setup (Promise)
 ```bash
-kubectl apply --context $PLATFORM --filename promise.yaml
+# rust based pipeline
+docker build --tag opencredo/flink-configure-pipeline:dev ./internal/configure-pipeline
+```
 
+```bash
+# shell based pipeline
+docker build --tag opencredo/flink-configure-pipeline:dev ./shell/configure-pipeline
 ```
+
+Next, load the image into your docker environment. Using kind:
+
+```bash
+kind load docker-image opencredo/flink-configure-pipeline:dev --name platform
+```
+
+
+### Creating the promise
+Apply the promise:
+
+```bash
+kubectl apply --context $PLATFORM --filename promise.yaml
+```
+
+Now wait until the flink operator is available in the worker cluster:
 ```bash
 kubectl --context $WORKER get pods --watch
 ```
 
-### Setup (Request)
-Once the flink operator is running as seen in the previous step you are ready to fulfil a [resource-request](resource-request.yaml) as a Flink job:
+### Creating the flink promise request
+
+Now you can fulfil a [resource-request](resource-request.yaml) as a Flink job:
 ```bash
 kubectl apply --context $PLATFORM --filename resource-request.yaml
 ```
 
-
 ### Kratix Verification
+
 ```bash
 kubectl --context $PLATFORM get crds flinkdeps.example.promise.syntasso.io
-
 kubectl logs -l=kratix-promise-id=flinkdep -n kratix-platform-system -c flinkdep-promise-pipeline
-
 ```
 
-### Teardown (Request)
+### Teardown
+
+Deleting the resource:
 ```bash
 kubectl delete --context $PLATFORM --filename resource-request.yaml
 ```
 
-### Teardown (Promise)
+Deleting the promise:
 ```bash
 kubectl delete --context $PLATFORM --filename promise.yaml
-
 ```