Add a script to run operator locally

run_locally.sh

@@ -0,0 +1,83 @@
+#!/bin/bash
+
+set -uo pipefail 
+IFS=$'\n\t'
+
+# timeouts after 3 minutes
+function retry(){
+    cmd="$1"
+    retryMsg="$2"
+    for i in {1..90}; do
+	eval "$cmd"
+	if [ $? -eq 0 ]; then
+         return 0
+        fi
+	echo "$retryMsg"
+        sleep 2
+    done
+    
+    return 1
+}
+
+
+echo "==== CLEAN UP PREVIOUS RUN ==== "
+
+status=$(minikube status --format "{{.MinikubeStatus}}")
+if [ "$status" = "Running" ]; then 
+    minikube delete
+fi
+
+# the kubectl process does the port-forwarding between operator and local ports
+# we restart the process to be able to bind to the same port again (see end of script)
+echo "Kill kubectl process to re-init port-forwarding for minikube"
+kubepid=$(pidof "kubectl")
+if [ $? -eq 0 ]; then
+    kill "$kubepid"
+fi
+
+
+echo "==== START MINIKUBE ==== "
+echo "May take a few minutes ..."
+minikube start 
+kubectl config set-context minikube
+
+echo "==== MINIKUBE STATUS ==== "
+minikube status
+
+echo "==== START OPERATOR ==== "
+# the order of files is significant
+for file  in "configmap.yaml" "serviceaccount.yaml" "postgres-operator.yaml"
+do
+   retry "kubectl  create -f manifests/\"$file\"" "attempt to create $file resource" 
+done
+
+msg="Wait for the postgresql custom resource definition to register."
+cmd="kubectl get crd | grep 'postgresqls.acid.zalan.do' &> /dev/null"
+retry "$cmd" "$msg "
+
+kubectl create -f manifests/complete-postgres-manifest.yaml
+
+localPort="8080"
+operatorPort="8080"
+echo "==== FORWARD OPERATOR PORT $operatorPort TO LOCAL PORT $localPort  ===="
+operatorPod=$(kubectl get pod -l name=postgres-operator -o jsonpath={.items..metadata.name})
+# runs in the background to keep current terminal responsive
+# 1> redirects stdout to remove the info message about forwarded ports; the message sometimes garbles the cli prompt
+kubectl port-forward "$operatorPod" "$localPort":"$operatorPort" 1> /dev/null &
+
+
+echo "==== RUN HEALTH CHECK ==== "
+checkCmd="curl -L http://127.0.0.1:$localPort/clusters &> /dev/null"
+checkMsg="Wait for port forwarding to take effect"
+retry "$checkCmd"  "$checkMsg"
+
+if [ $? -eq 0 ]; then
+    echo "==== SUCCESS: OPERATOR IS RUNNING ==== "
+else
+    echo "Operator did not start or port forwarding did not work"
+    exit 1
+fi
+
+
+
+