Add support for ARM (Raspberry PI) for nfs-client

- Reorganized to use Makefile for building
- Added arm container for use in ARM based kubernetes clusters

Signed-off-by: Niklas Wik <niklas.wik@iki.fi>
(cherry picked from commit 166056da73)

Makefile

@@ -0,0 +1,45 @@
+# Copyright 2016 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+ifeq ($(REGISTRY),)
+        REGISTRY = quay.io/external_storage/
+endif
+ifeq ($(VERSION),)
+        VERSION = latest
+endif
+IMAGE = $(REGISTRY)nfs-client-provisioner:$(VERSION)
+IMAGE_ARM = $(REGISTRY)nfs-client-provisioner-arm:$(VERSION) 
+MUTABLE_IMAGE = $(REGISTRY)nfs-client-provisioner:latest
+
+all: build image build_arm image_arm 
+
+container: build image build_arm image_arm
+
+build:
+	CGO_ENABLED=0 go build -o docker/x86_64/nfs-client-provisioner ./cmd/nfs-client-provisioner
+
+build_arm:
+	CGO_ENABLED=0 GOARCH=arm GOARM=7 go build -o docker/arm/nfs-client-provisioner ./cmd/nfs-client-provisioner 
+	
+image:
+	sudo docker build -t $(IMAGE) docker/x86_64
+
+image_arm:
+	sudo docker run --rm --privileged multiarch/qemu-user-static:register --reset
+	sudo docker build -t $(IMAGE_ARM) docker/arm
+
+push:
+	docker push $(IMAGE)
+	docker push $(MUTABLE_IMAGE)
+	docker push $(IMAGE_ARM)

deploy/deployment-arm.yaml

@@ -0,0 +1,32 @@
+kind: Deployment
+apiVersion: extensions/v1beta1
+metadata:
+  name: nfs-client-provisioner
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      labels:
+        app: nfs-client-provisioner
+    spec:
+      serviceAccount: nfs-client-provisioner
+      containers:
+        - name: nfs-client-provisioner
+          image: quay.io/external_storage/nfs-client-provisioner-arm:latest
+          volumeMounts:
+            - name: nfs-client-root
+              mountPath: /persistentvolumes
+          env:
+            - name: PROVISIONER_NAME
+              value: fuseim.pri/ifs
+            - name: NFS_SERVER
+              value: 192.168.1.20
+            - name: NFS_PATH
+              value: /mnt/kube_nfs
+      volumes:
+        - name: nfs-client-root
+          nfs:
+            server: 192.168.1.20
+            path: /mnt/kube_nfs

docker/arm/Dockerfile

@@ -1,4 +1,3 @@
-#!/bin/sh
 # Copyright 2017 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -13,4 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-CGO_ENABLED=0 go build ./cmd/nfs-client-provisioner #&& docker build -t quay.io/jackieli/nfs-client-provisioner .
+FROM hypriot/rpi-alpine:3.6
+RUN apk update --no-cache && apk add ca-certificates
+COPY nfs-client-provisioner /nfs-client-provisioner
+ENTRYPOINT ["/nfs-client-provisioner"]