demo: make demo runnable again

Fix workload template specs:
- update node affinity in "demo-pod-with-discovery.cloverleaf"
- fix broken "demo-pod-without-discovery"

Fix runner scripts to be runnable from anywhere gqYour current working
dir shouldn't matter. Also make the scripts exit on any error. Also
remove trailing whitespace.

Minor fixes in README.

demo/README.md

@@ -30,7 +30,7 @@ While our example illustrates the benefits of using node feature discovery with
 
 Scripts to reproduce our demo results can be found in [helper-scripts](helper-scripts/).  
 ### Prerequisites
-1. `Kubectl` should be configured properly to work with your Kubernetes cluster.
+1. `kubectl` should be configured properly to work with your Kubernetes cluster.
 2. Node feature discovery should have been already deployed on your Kubernetes cluster. 
  
 ### Instructions 
@@ -41,8 +41,8 @@ Follow these easy steps to reproduce the demo.
 3. `./run-with-discovery.sh -a cloverleaf`
 4. `./run-without-discovery.sh -a parsec`
 5. `./run-without-discovery.sh -a cloverleaf`
-6. `/aggregate-logs-and-plot.sh -a parsec`
-7. `/aggregate-logs-and-plot.sh -a cloverleaf`
+6. `./aggregate-logs-and-plot.sh -a parsec`
+7. `./aggregate-logs-and-plot.sh -a cloverleaf`
 
 Following the above steps will produce the performance and normalized performance logs and their corresponding plots for each application. 
 

demo/helper-scripts/aggregate-logs-and-plot.sh

@@ -1,7 +1,13 @@
 #!/usr/bin/env bash
+
+set -eo pipefail
+
+this=`basename $0`
+this_dir=`dirname $0`
+
 show_help() {
 cat << EOF
-    Usage: ${0##*/} [-a APPLICATION_NAME]
+    Usage: $this [-a APPLICATION_NAME]
     Aggregate the results from the specified application and plot the result.
 
     -a APPLICATION_NAME     run the pods with APPLICATION_NAME application.
@@ -59,7 +65,7 @@ rm -f temp.log labels-with-discovery-$app.log
 
 minimum=$(awk 'min=="" || $2 < min {min=$2} END {print min}' performance.log)
 awk -v min=$minimum '{print $1,((($2/min)*100))-100}' performance.log > performance-norm.log
-./box-plot.R performance.log performance-comparison-$app.pdf
-./box-plot-norm.R performance-norm.log performance-comparison-$app-norm.pdf
+"$this_dir/box-plot.R" performance.log performance-comparison-$app.pdf
+"$this_dir/box-plot-norm.R" performance-norm.log performance-comparison-$app-norm.pdf
 
-./clean-up.sh -a $app
+"$this_dir/clean-up.sh" -a $app

demo/helper-scripts/clean-up.sh

@@ -1,7 +1,12 @@
 #!/usr/bin/env bash
+
+set -eo pipefail
+
+this=`basename $0`
+
 show_help() {
 cat << EOF
-    Usage: ${0##*/} [-a APPLICATION_NAME]
+    Usage: $this [-a APPLICATION_NAME]
     Clean-up pods with and without discovery enabled for the specified application.
 
     -a APPLICATION_NAME     clean-up the pods with APPLICATION_NAME application.

demo/helper-scripts/demo-pod-with-discovery.yaml.cloverleaf.template

@@ -2,24 +2,6 @@ apiVersion: v1
 kind: Pod
 metadata:
   name: demo-cloverleaf-NUM
-    annotations:
-        scheduler.alpha.kubernetes.io/affinity: |
-            {
-                "nodeAffinity": {
-                    "requiredDuringSchedulingIgnoredDuringExecution": {
-                        "nodeSelectorTerms": [
-                            {
-                                "matchExpressions": [
-                                    {
-                                        "key": "feature.node.kubernetes.io/cpu-pstate.turbo",
-                                        "operator": "DoesNotExist"
-                                    }
-                                ]
-                            }
-                        ]
-                    }
-                }
-            }
 spec:
   containers:
     - name: demo-container-cloverleaf-NUM
@@ -27,4 +9,6 @@ spec:
       ports:
         - containerPort: 3551
           hostPort: 10001
+  nodeSelector:
+    feature.node.kubernetes.io/cpu-pstate.turbo: 'false'
   restartPolicy: Never

demo/helper-scripts/run-with-discovery.sh

@@ -1,7 +1,13 @@
 #!/usr/bin/env bash
+
+set -eo pipefail
+
+this=`basename $0`
+this_dir=`dirname $0`
+
 show_help() {
 cat << EOF
-    Usage: ${0##*/} [-a APPLICATION_NAME]
+    Usage: $this [-a APPLICATION_NAME]
     Runs pods ten times with discovery enabled.
 
     -a APPLICATION_NAME     run the pods with APPLICATION_NAME application.
@@ -49,14 +55,12 @@ for i in {1..10}
 do
     if [ "$app" == "parsec" ]
     then
-        sed -e "s/NUM/$i-with-discovery/" -e "s/APP/demo-1/" demo-pod-with-discovery.yaml.parsec.template > demo-pod-with-discovery.yaml
-        kubectl create -f demo-pod-with-discovery.yaml
+        sed -e "s/NUM/$i-with-discovery/" -e "s/APP/demo-1/" \
+            "$this_dir/demo-pod-with-discovery.yaml.parsec.template" | kubectl create -f -
     else
-        sed -e "s/NUM/$i-with-discovery/" -e "s/APP/demo-2/" demo-pod-with-discovery.yaml.cloverleaf.template > demo-pod-with-discovery.yaml
-        kubectl create -f demo-pod-with-discovery.yaml
+        sed -e "s/NUM/$i-with-discovery/" -e "s/APP/demo-2/" \
+            "$this_dir/demo-pod-with-discovery.yaml.cloverleaf.template" | kubectl create -f -
     fi
     echo "WithDiscovery" >> labels-with-discovery-$app.log
 done
 echo "Ten pods with node feature discovery enabled started."
-
-rm -f demo-pod-with-discovery.yaml

demo/helper-scripts/run-without-discovery.sh

@@ -1,7 +1,13 @@
 #!/usr/bin/env bash
+
+set -eo pipefail
+
+this=`basename $0`
+this_dir=`dirname $0`
+
 show_help() {
 cat << EOF
-    Usage: ${0##*/} [-a APPLICATION_NAME]
+    Usage: $this [-a APPLICATION_NAME]
     Runs ten pods without discovery enabled with the specified application.
 
     -a APPLICATION_NAME     run the pods with APPLICATION_NAME application.
@@ -49,13 +55,12 @@ for i in {1..10}
 do
     if [ "$app" == "parsec" ]
     then
-        sed -e "s/NUM/$i-wo-discovery/" -e "s/IMG/demo-1/" -e "s/APP/$app/" demo-pod-without-discovery.yaml.template > demo-pod-without-discovery.yaml
+        sed -e "s/NUM/$i-wo-discovery/" -e "s/IMG/demo-1/" -e "s/APP/$app/" \
+            "$this_dir/demo-pod-without-discovery.yaml.template" | kubectl create -f -
     else
-        sed -e "s/NUM/$i-wo-discovery/" -e "s/IMG/demo-2/" -e "s/APP/$app/" demo-pod-without-discovery.yaml.template > demo-pod-without-discovery.yaml
+        sed -e "s/NUM/$i-wo-discovery/" -e "s/IMG/demo-2/" -e "s/APP/$app/" \
+            "$this_dir/demo-pod-without-discovery.yaml.template" | kubectl create -f -
     fi
-    kubectl create -f demo-pod-without-discovery.yaml
     echo "WithoutDiscovery" >> labels-without-discovery-$app.log
 done
 echo "Ten pods without node feature discovery started."
-
-rm -f demo-pod-without-discovery.yaml