Add nginx prefix to vars

Author: ciarams87

tests/scripts/remote-scripts/run-tests.sh

@@ -6,4 +6,4 @@ source ~/vars.env
 
 echo "export PATH=$PATH:/usr/local/go/bin" >> $HOME/.profile && . $HOME/.profile
 
-cd nginx-gateway-fabric/tests && make test TAG=${TAG} PREFIX=${PREFIX} GINKGO_LABEL=${GINKGO_LABEL} GINKGO_FLAGS=${GINKGO_FLAGS} PULL_POLICY=Always GW_SERVICE_TYPE=LoadBalancer GW_SVC_GKE_INTERNAL=true
+cd nginx-gateway-fabric/tests && make test TAG=${TAG} PREFIX=${PREFIX} NGINX_PREFIX=${NGINX_PREFIX} GINKGO_LABEL=${GINKGO_LABEL} GINKGO_FLAGS=${GINKGO_FLAGS} PULL_POLICY=Always GW_SERVICE_TYPE=LoadBalancer GW_SVC_GKE_INTERNAL=true

tests/scripts/vars.env-example

@@ -2,6 +2,7 @@
 VM_NAME=ngf-auto-testing
 TAG=<tag of the remote image>
 PREFIX=<prefix of the remote image>
+NGINX_PREFIX=<prefix of the remote nginx image>
 GKE_CLUSTER_NAME=<name of deployed GKE cluster>
 GKE_CLUSTER_ZONE=<zone where GKE cluster is deployed>
 GKE_PROJECT=<GCP project>