Add deb/rpm packaging for arm32/armv7 as well

Makefile

@@ -84,6 +84,7 @@ export GO111MODULE := on
 
 GOOS ?= $(shell go env GOOS)
 GOARCH ?= $(shell go env GOARCH)
+GOARM ?= 7 # the default is 5
 GOPATH ?= $(shell go env GOPATH)
 BUILD_DIR ?= ./out
 $(shell mkdir -p $(BUILD_DIR))
@@ -191,7 +192,7 @@ endif
 
 out/minikube$(IS_EXE): $(SOURCE_GENERATED) $(SOURCE_FILES) go.mod
 ifeq ($(MINIKUBE_BUILD_IN_DOCKER),y)
-	$(call DOCKER,$(BUILD_IMAGE),GOOS=$(GOOS) GOARCH=$(GOARCH) /usr/bin/make $@)
+	$(call DOCKER,$(BUILD_IMAGE),GOOS=$(GOOS) GOARCH=$(GOARCH) GOARM=$(GOARM) /usr/bin/make $@)
 else
 	$(if $(quiet),@echo "  GO       $@")
 	$(Q)go build $(MINIKUBE_GOFLAGS) -tags "$(MINIKUBE_BUILD_TAGS)" -ldflags="$(MINIKUBE_LDFLAGS)" -o $@ k8s.io/minikube/cmd/minikube
@@ -205,6 +206,14 @@ out/minikube-linux-x86_64: out/minikube-linux-amd64
 	$(if $(quiet),@echo "  CP       $@")
 	$(Q)cp $< $@
 
+out/minikube-linux-armhf: out/minikube-linux-arm
+	$(if $(quiet),@echo "  CP       $@")
+	$(Q)cp $< $@
+
+out/minikube-linux-armv7hl: out/minikube-linux-arm
+	$(if $(quiet),@echo "  CP       $@")
+	$(Q)cp $< $@
+
 out/minikube-linux-aarch64: out/minikube-linux-arm64
 	$(if $(quiet),@echo "  CP       $@")
 	$(Q)cp $< $@
@@ -224,12 +233,14 @@ minikube-darwin-arm64: out/minikube-darwin-arm64 ## Build Minikube for Darwin AR
 .PHONY: minikube-windows-amd64.exe
 minikube-windows-amd64.exe: out/minikube-windows-amd64.exe ## Build Minikube for Windows 64bit
 
+eq = $(and $(findstring x$(1),x$(2)),$(findstring x$(2),x$(1)))
+
 out/minikube-%: $(SOURCE_GENERATED) $(SOURCE_FILES)
 ifeq ($(MINIKUBE_BUILD_IN_DOCKER),y)
 	$(call DOCKER,$(BUILD_IMAGE),/usr/bin/make $@)
 else
 	$(if $(quiet),@echo "  GO       $@")
-	$(Q)GOOS="$(firstword $(subst -, ,$*))" GOARCH="$(lastword $(subst -, ,$(subst $(IS_EXE), ,$*)))" \
+	$(Q)GOOS="$(firstword $(subst -, ,$*))" GOARCH="$(lastword $(subst -, ,$(subst $(IS_EXE), ,$*)))" $(if $(call eq,$(lastword $(subst -, ,$(subst $(IS_EXE), ,$*))),arm),GOARM=$(GOARM))\
 	go build -tags "$(MINIKUBE_BUILD_TAGS)" -ldflags="$(MINIKUBE_LDFLAGS)" -a -o $@ k8s.io/minikube/cmd/minikube
 endif
 

hack/jenkins/release_build_and_upload.sh

@@ -52,10 +52,12 @@ env BUILD_IN_DOCKER=y \
   out/minikube-installer.exe \
   "out/minikube_${DEB_VERSION}-${DEB_REVISION}_amd64.deb" \
   "out/minikube_${DEB_VERSION}-${DEB_REVISION}_arm64.deb" \
+  "out/minikube_${DEB_VERSION}-${DEB_REVISION}_armhf.deb" \
   "out/minikube_${DEB_VERSION}-${DEB_REVISION}_ppc64el.deb" \
   "out/minikube_${DEB_VERSION}-${DEB_REVISION}_s390x.deb" \
   "out/minikube-${RPM_VERSION}-${RPM_REVISION}.x86_64.rpm" \
   "out/minikube-${RPM_VERSION}-${RPM_REVISION}.aarch64.rpm" \
+  "out/minikube-${RPM_VERSION}-${RPM_REVISION}.armv7hl.rpm" \
   "out/minikube-${RPM_VERSION}-${RPM_REVISION}.ppc64le.rpm" \
   "out/minikube-${RPM_VERSION}-${RPM_REVISION}.s390x.rpm" \
   "out/docker-machine-driver-kvm2_${DEB_VERSION}-${DEB_REVISION}_amd64.deb" \
@@ -74,6 +76,8 @@ fi
 # Don't upload temporary copies, avoid unused duplicate files in the release storage
 rm -f out/minikube-linux-x86_64
 rm -f out/minikube-linux-aarch64
+rm -f out/minikube-linux-armhf
+rm -f out/minikube-linux-armv7hl
 rm -f out/minikube-linux-ppc64el
 rm -f out/minikube-windows-amd64