howto: update k8s example

Author: noredistribution

README.md

@@ -117,10 +117,15 @@ The easiest way to use avd-all-in-one container with remote SSH is creating a si
 [k8s-avd-cvp.yml](k8s-avd-cvp.yml) is an example pod definition for running avd-all-in-one on CloudVision (CentOS), however
 it should work on other linux distributions (the CVP env vars won't be needed in that case).
 
-1. Download the docker image: `docker pull avdteam/avd-all-in-one` (run it on all CVP nodes in case of multinode)
+The below example is for running the pod on one specific node (set by the `nodeName: $PRIMARY_HOSTNAME` node selection in the spec)
+
+1. Download the docker image: `docker pull avdteam/avd-all-in-one`
 2. Create avd group and user: `groupadd -g 1000 avd && useradd avd -u 1000 -g 1000`
 3. Create projects in `/home/avd`
-4. Deploy the k8s pod: `kubectl apply -f /cvpi/conf/kubernetes/k8s-avd-cvp.yml`
+4. Deploy the k8s pod: `envsubst < /cvpi/conf/kubernetes/avd.yml | kubectl apply -f -`
+
+> Note that the pod can be also deployed on any node by removing the `nodeName` field from the spec, however that would also require
+> pulling the image onto all nodes and synchronozing the project files between all nodes.
 
 ## Known Caveats
 

k8s-avd-cvp.yml

@@ -14,6 +14,7 @@ spec:
       labels:
         app: avd
     spec:
+      node: $PRIMARY_HOSTNAME
       hostNetwork: false
       securityContext:
         runAsUser: 1000