Optionally set the kubectl wait timeout as a make parameter.

This has the consequence that GNU make is required.

deploy/Makefile

@@ -24,9 +24,15 @@
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 
+# GNU make is required.
+
 mkpath := $(abspath $(lastword $(MAKEFILE_LIST)))
 mkdir := $(dir $(mkpath))
 
+ifndef WAIT_TIMEOUT
+	WAIT_TIMEOUT=2m
+endif
+
 all: deploy-helm
 
 deploy-controller-helm:
@@ -44,13 +50,13 @@ verify:
 undeploy-service-helm:
 	@helm uninstall viking-service
 	@echo Waiting for viking-service Pods to be deleted
-	@kubectl wait pod --timeout=2m \
+	@kubectl wait pod --timeout=$(WAIT_TIMEOUT) \
 		-l app.kubernetes.io/name=varnish-ingress --for=delete
 
 undeploy-controller-helm:
 	@helm uninstall viking-controller --namespace kube-system
 	@echo Waiting for viking-controller Pod to be deleted
-	@kubectl wait pod --timeout=2m -n kube-system \
+	@kubectl wait pod --timeout=$(WAIT_TIMEOUT) -n kube-system \
 		-l app.kubernetes.io/name=viking-controller --for=delete
 
 deploy-helm: deploy-controller-helm deploy-service-helm