Update k8s to 1.15 used in e2e.
@@ -3,7 +3,7 @@ GOFLAGS=-mod=vendor
export GOFLAGS
GINKGO=$(GOPATH)/bin/ginkgo
KUBECTL=/usr/local/bin/kubectl
-KUBERNETES_VERSION=1.14.3
+KUBERNETES_VERSION=1.15.0
GO_FILES := $(shell find .. -path ../vendor -prune -o -path ../e2e -prune -o -name '*.go' -print)
CA_FILES=./certs/ca.csr ./certs/ca.pem ./certs/ca-key.pem
