Fix 2327: Detecting OLM existence before start to install (#2334)

* Fix 2327

Signed-off-by: Ying Mo <morningspace@yahoo.com>

* Remove -o=jsonpath='{.spec}'

Signed-off-by: Ying Mo <morningspace@yahoo.com>

scripts/install.sh

@@ -14,7 +14,7 @@ if [[ ${#@} -lt 1 || ${#@} -gt 2 ]]; then
     exit 1
 fi
 
-if kubectl get deployment olm-operator -n openshift-operator-lifecycle-manager -o=jsonpath='{.spec}' > /dev/null 2>&1; then
+if kubectl get deployment olm-operator -n openshift-operator-lifecycle-manager > /dev/null 2>&1; then
     echo "OLM is already installed in a different configuration. This is common if you are not running a vanilla Kubernetes cluster. Exiting..."
     exit 1
 fi
@@ -24,6 +24,11 @@ base_url="${2:-${default_base_url}}"
 url="${base_url}/${release}"
 namespace=olm
 
+if kubectl get deployment olm-operator -n ${namespace} > /dev/null 2>&1; then
+    echo "OLM is already installed in ${namespace} namespace. Exiting..."
+    exit 1
+fi
+
 kubectl apply -f "${url}/crds.yaml"
 kubectl wait --for=condition=Established -f "${url}/crds.yaml"
 kubectl apply -f "${url}/olm.yaml"