Updated docs

README.md

@@ -1,16 +1,63 @@
 # demo-helm
 
-A demo helm chart to deploy a simple web app written in Python
+A demo helm chart to deploy a simple web app written in Python.
 
+## Build and push the sample app image
+
+Use the `Makefile` to build and push the image.
+
+```
+make push-app-image
+```
+
+## Helm install/upgrade
+
+### New Deployments
+
+```
+helm install <NAME> charts/demo-helm 
+OR
+helm install charts/demo-helm --generate-name
+```
+
+### Upgrading Deployments
+
+Get your deployment ID
+```
+helm list 
+```
+
+```
+helm upgrade demo-helm-1633825301 charts/demo-helm
+```
 
 ## Setting registry pull secrets
 
-From: [The k8s docs](https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/#create-a-secret-by-providing-credentials-on-the-command-line)
+You have to have an image pull secret. So first you need the secrets:
+
+From: [The k8s docs]
 
 ```
 kubectl create secret docker-registry regcred \
- --docker-server=<your-registry-server> \
+ --docker-server=https://registry.runcible.io \ 
  --docker-username=<your-name> \
  --docker-password=<your-pword> \
  --docker-email=<your-email>
-```
+```
+
+Then you need to specify the secret in your deployment spec like so:
+
+```
+    spec:
+      containers:
+        - image: registry.runcible.io/demo-helm:1.0.1
+          imagePullPolicy: Always
+          name: backend
+          ports:
+            - name: backend
+              containerPort: 5000
+      imagePullSecrets:
+        - name: regcred
+```
+
+[The k8s docs](https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/#create-a-secret-by-providing-credentials-on-the-command-line)