Add rktlet from master

deploy/iso/minikube-iso/package/Config.in

@@ -1,5 +1,6 @@
 menu "System tools"
     source "$BR2_EXTERNAL_MINIKUBE_PATH/package/rkt-bin/Config.in"
+    source "$BR2_EXTERNAL_MINIKUBE_PATH/package/rktlet-master/Config.in"
     source "$BR2_EXTERNAL_MINIKUBE_PATH/package/runc-master/Config.in"
     source "$BR2_EXTERNAL_MINIKUBE_PATH/package/podman/Config.in"
     source "$BR2_EXTERNAL_MINIKUBE_PATH/package/crio-bin/Config.in"

deploy/iso/minikube-iso/package/rktlet-master/Config.in

@@ -0,0 +1,16 @@
+config BR2_PACKAGE_RKTLET_MASTER
+	bool "rktlet-master"
+        default y
+	depends on BR2_PACKAGE_HOST_GO_ARCH_SUPPORTS
+	depends on BR2_PACKAGE_HOST_GO_CGO_LINKING_SUPPORTS
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	help
+	  The rkt implementation of the Kubernetes
+          Container Runtime Interface.
+
+	  https://github.com/kubernetes-incubator/rktlet
+
+comment "rktlet needs a toolchain w/ threads"
+	depends on BR2_PACKAGE_HOST_GO_ARCH_SUPPORTS && \
+		BR2_PACKAGE_HOST_GO_CGO_LINKING_SUPPORTS
+	depends on !BR2_TOOLCHAIN_HAS_THREADS

deploy/iso/minikube-iso/package/rktlet-master/rktlet-master.hash

@@ -0,0 +1,2 @@
+# Locally computed
+sha256 12254af0f8d9b1f653f20e943dbbda42b74f6eafe7331db74a32857e44efdc6f fd7fc6bf4a25f03c22e5f6e30f3d9f12c468afcb.tar.gz

deploy/iso/minikube-iso/package/rktlet-master/rktlet-master.mk

@@ -0,0 +1,59 @@
+################################################################################
+#
+# rktlet
+#
+################################################################################
+
+# HEAD as of 2018-05-28
+RKTLET_MASTER_COMMIT = fd7fc6bf4a25f03c22e5f6e30f3d9f12c468afcb
+RKTLET_MASTER_VERSION = v0.1.0-21-gfd7fc6b
+RKTLET_MASTER_SITE = https://github.com/kubernetes-incubator/rktlet/archive
+RKTLET_MASTER_SOURCE = $(RKTLET_MASTER_COMMIT).tar.gz
+RKTLET_MASTER_LICENSE = Apache-2.0
+RKTLET_MASTER_LICENSE_FILES = LICENSE
+
+RKTLET_MASTER_DEPENDENCIES = host-go
+
+RKTLET_MASTER_GOPATH = "$(@D)/Godeps/_workspace"
+RKTLET_MASTER_MAKE_ENV = $(HOST_GO_TARGET_ENV) \
+	CGO_ENABLED=1 \
+	GOBIN="$(@D)/bin" \
+	GOPATH="$(RKTLET_MASTER_GOPATH)" \
+	PATH=$(BR_PATH)
+
+RKTLET_MASTER_GLDFLAGS = \
+	-buildmode=pie -X github.com/kubernetes-incubator/rktlet/version.Version=$(RKTLET_MASTER_VERSION)
+
+ifeq ($(BR2_STATIC_LIBS),y)
+RKTLET_MASTER_GLDFLAGS += -extldflags '-static'
+endif
+
+RKTLET_MASTER_GOTAGS = cgo static_build
+
+ifeq ($(BR2_PACKAGE_LIBSECCOMP),y)
+RKTLET_MASTER_GOTAGS += seccomp
+RKTLET_MASTER_DEPENDENCIES += libseccomp host-pkgconf
+endif
+
+define RKTLET_MASTER_CONFIGURE_CMDS
+	mkdir -p $(RKTLET_MASTER_GOPATH)/src/github.com/kubernetes-incubator
+	ln -s $(@D) $(RKTLET_MASTER_GOPATH)/src/github.com/kubernetes-incubator/rktlet
+endef
+
+define RKTLET_MASTER_BUILD_CMDS
+	cd $(@D) && $(RKTLET_MASTER_MAKE_ENV) $(HOST_DIR)/usr/bin/go \
+		build -v -o $(@D)/bin/rktlet \
+		-tags "$(RKTLET_MASTER_GOTAGS)" -ldflags "$(RKTLET_MASTER_GLDFLAGS)" github.com/kubernetes-incubator/rktlet/cmd/server
+endef
+
+define RKTLET_MASTER_INSTALL_TARGET_CMDS
+	$(INSTALL) -D -m 0755 $(@D)/bin/rktlet $(TARGET_DIR)/usr/bin/rktlet
+endef
+
+define RKTLET_MASTER_INSTALL_INIT_SYSTEMD
+        $(INSTALL) -Dm644 \
+                $(BR2_EXTERNAL_MINIKUBE_PATH)/package/rktlet-master/rktlet.service \
+                $(TARGET_DIR)/usr/lib/systemd/system/rktlet.service
+endef
+
+$(eval $(generic-package))

deploy/iso/minikube-iso/package/rktlet-master/rktlet.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=rktlet: The rkt implementation of a Kubernetes Container Runtime
+Documentation=https://github.com/kubernetes-incubator/rktlet/tree/master/docs
+
+[Service]
+ExecStart=/usr/bin/rktlet
+Restart=always
+StartLimitInterval=0
+RestartSec=10
+
+[Install]
+WantedBy=multi-user.target