use ifeq to conditional statements

Makefile

@@ -27,7 +27,7 @@ SHELL = /usr/bin/env bash -o pipefail
 
 ENVTEST_ASSETS_DIR=$(shell pwd)/testbin
 KIND_CLUSTER_CONFIG_DIR=$(shell pwd)/config/kind
-KUBECTL_CONFIG_BACKUP_DIR=$(shell pwd)/.kube
+KUBECONFIG_BACKUP_DIR=$(shell pwd)/.kube
 
 all: build
 
@@ -53,7 +53,10 @@ ifeq (1, $(shell kind get clusters | grep ${KIND_CLUSTER_NAME} | wc -l | tr -d '
 else
 	@echo "Creating Cluster"
 	kind create cluster --name ${KIND_CLUSTER_NAME} --image=kindest/node:${K8S_NODE_IMAGE} --config ${KIND_CLUSTER_CONFIG_DIR}/cluster.yaml
-	if [ "${IN_DEV_CONTAINER}" = "true" ]; then mkdir -p ${KUBECTL_CONFIG_BACKUP_DIR} && kind get kubeconfig --name ${KIND_CLUSTER_NAME} > ${KUBECTL_CONFIG_BACKUP_DIR}/kind-conifg.yaml; fi
+ifeq ($(IN_DEV_CONTAINER), true)
+	@echo "kubeconfig backup =>"
+	mkdir -p ${KUBECONFIG_BACKUP_DIR} && kind get kubeconfig --name ${KIND_CLUSTER_NAME} > ${KUBECONFIG_BACKUP_DIR}/kind-conifg.yaml
+endif
 endif
 
 ##@ Development