Merge pull request #4290 from mdonkers/make-dev-env-linux

Make dev-env.sh script work on Linux

build/dev-env.sh

@@ -47,21 +47,33 @@ make build container
 
 docker save "${DEV_IMAGE}" | (eval $(minikube docker-env --shell bash) && docker load) || true
 
-for tool in kubectl kustomize; do
-  echo "[dev-env] installing $tool"
-  $tool version || brew install $tool
-done
+# kubectl >= 1.14 includes Kustomize via "apply -k". Makes it easier to use on Linux as well, assuming kubectl installed
+KUBE_CLIENT_VERSION=$(kubectl version --client --short | awk '{print $3}' | cut -d. -f2) || true
+if [[ ${KUBE_CLIENT_VERSION} -lt 14 ]]; then
+  for tool in kubectl kustomize; do
+	echo "[dev-env] installing $tool"
+	$tool version || brew install $tool
+  done
+fi
 
 if ! kubectl get namespace "${NAMESPACE}"; then
   kubectl create namespace "${NAMESPACE}"
 fi
 
 ROOT=./deploy/minikube
 
-pushd $ROOT
-kustomize edit set namespace "${NAMESPACE}"
-kustomize edit set image "quay.io/kubernetes-ingress-controller/nginx-ingress-controller=${DEV_IMAGE}"
-popd
+if [[ ${KUBE_CLIENT_VERSION} -lt 14 ]]; then
+  pushd $ROOT
+  kustomize edit set namespace "${NAMESPACE}"
+  kustomize edit set image "quay.io/kubernetes-ingress-controller/nginx-ingress-controller=${DEV_IMAGE}"
+  popd
+
+  echo "[dev-env] deploying NGINX Ingress controller in namespace $NAMESPACE"
+  kustomize build $ROOT | kubectl apply -f -
+else
+  sed -i "\\|^namespace:|c \\namespace: ${NAMESPACE}" "${ROOT}/kustomization.yaml"
+  sed -i "\\|^- name: quay.io|c \\- name: quay.io/kubernetes-ingress-controller/nginx-ingress-controller=${DEV_IMAGE}" "${ROOT}/kustomization.yaml"
 
-echo "[dev-env] deploying NGINX Ingress controller in namespace $NAMESPACE"
-kustomize build $ROOT | kubectl apply -f -
+  echo "[dev-env] deploying NGINX Ingress controller in namespace $NAMESPACE"
+  kubectl apply -k "${ROOT}"
+fi