Add support to run memory-hog scenario in prow

prow/memory-hog/prow_run.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+set -ex
+
+ls
+
+# Source env.sh to read all the vars
+source env.sh
+
+export KUBECONFIG=$KRKN_KUBE_CONFIG
+
+# cluster details
+echo "Printing cluster details"
+oc version
+cat $KRKN_KUBE_CONFIG
+oc config view
+echo "Printing node info"
+for node in $(oc get nodes | awk 'NR!=1{print $1}'); do oc get node/$node -o yaml; done
+
+source node-memory-hog/env.sh
+
+krkn_loc=/root/kraken
+
+# Substitute config with environment vars defined
+envsubst < node-memory-hog/input.yaml.template> memory-hog/memory_hog_scenario.yaml
+export SCENARIO_FILE="memory-hog/memory_hog_scenario.yaml"
+envsubst < config.yaml.template > memory_hog_config.yaml
+
+# Run Kraken
+cat memory_hog_config.yaml
+cat memory-hog/memory_hog_scenario.yaml
+python3.9 $krkn_loc/run_kraken.py --config=memory_hog_config.yaml