Modify GCI mounter to enable NFSv3

This PR is a retry for PR #36610

cluster/gce/gci/configure.sh

@@ -100,10 +100,10 @@ function split-commas {
 
 function install-gci-mounter-tools {
     local -r rkt_version="v1.18.0"
-    local -r gci_mounter_version="v2"
+    local -r gci_mounter_version="v3"
     local -r rkt_binary_sha1="75fc8f29c79bc9e505f3e7f6e8fadf2425c21967"
     local -r rkt_stage1_fly_sha1="474df5a1f934960ba669b360ab713d0a54283091"
-    local -r gci_mounter_sha1="851e841d8640d6a05e64e22c493f5ac3c4cba561"
+    local -r gci_mounter_sha1="6ae71998bf9deba06468b036c2ba126626e0050d"
     download-or-bust "${rkt_binary_sha1}" "https://storage.googleapis.com/kubernetes-release/rkt/${rkt_version}/rkt"
     download-or-bust "${rkt_stage1_fly_sha1}" "https://storage.googleapis.com/kubernetes-release/rkt/${rkt_version}/stage1-fly.aci"
     download-or-bust "${gci_mounter_sha1}" "https://storage.googleapis.com/kubernetes-release/gci-mounter/gci-mounter-${gci_mounter_version}.aci"

cluster/gce/gci/mounter/Changelog

@@ -5,3 +5,7 @@
 ## v2 (Fri Oct 28 2016 Vishnu Kannan <vishh@google.com>)
   - Adding netbase package.
   - Digest: sha256:c7dfe059fbbf976fc4284a87eb18adf0f8e0c4cf30a30f5a852842c772a64c2d
+
+## v3 (Fri Nov 11 2016 Jing Xu <jinxu@google.com>)
+  - Add startmounter.sh script to start rpcbind before mounting for NFSv3
+  - Digest: sha256:35bc48a1ca97c3971611dc4662d08d131869daa692acb281c7e9e052924e38b1

cluster/gce/gci/mounter/Dockerfile

@@ -16,5 +16,5 @@ FROM ubuntu:xenial
 MAINTAINER vishh@google.com
 
 RUN apt-get update && apt-get install -y netbase nfs-common=1:1.2.8-9ubuntu12 glusterfs-client=3.7.6-1ubuntu1
-
-ENTRYPOINT ["/bin/mount"]
+ADD startmounter.sh /startmounter.sh
+ENTRYPOINT ["/startmounter.sh"]

cluster/gce/gci/mounter/Makefile

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-TAG=v2
+TAG=v3
 REGISTRY=gcr.io/google_containers
 IMAGE=gci-mounter
 

cluster/gce/gci/mounter/mounter

@@ -18,7 +18,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-MOUNTER_VERSION=v2
+MOUNTER_VERSION=v3
 MOUNTER_USER=root
 ROOT_DIR=/home/kubernetes/bin
 RKT_BINARY=${ROOT_DIR}/rkt
@@ -46,10 +46,18 @@ fi
 
 echo "Running mount using a rkt fly container"
 
-${RKT_BINARY} run --stage1-path=${STAGE1_ACI} \
-	--insecure-options=image \
-	--volume=kubelet,kind=host,source=/var/lib/kubelet,readOnly=false,recursive=true \
-	--mount volume=kubelet,target=/var/lib/kubelet \
-	${MOUNTER_IMAGE} --user=${MOUNTER_USER} --exec /bin/mount -- "$@"
+if [ "$#" -eq 0 ]; then
+  ${RKT_BINARY} run --stage1-path=${STAGE1_ACI} \
+    --insecure-options=image \
+    --volume=kubelet,kind=host,source=/var/lib/kubelet,readOnly=false,recursive=true \
+    --mount volume=kubelet,target=/var/lib/kubelet \
+    ${MOUNTER_IMAGE} --user=${MOUNTER_USER} --exec /bin/mount
+else
+  ${RKT_BINARY} run --stage1-path=${STAGE1_ACI} \
+    --insecure-options=image \
+    --volume=kubelet,kind=host,source=/var/lib/kubelet,readOnly=false,recursive=true \
+    --mount volume=kubelet,target=/var/lib/kubelet \
+    ${MOUNTER_IMAGE} --user=${MOUNTER_USER} --exec /startmounter.sh -- "$@"
+fi
 
 echo "Successfully ran mount using a rkt fly container"

cluster/gce/gci/mounter/startmounter.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# 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.
+
+# start rpcbind if it is not started yet
+s=`/etc/init.d/rpcbind status`
+if [[ $s == *"not running"* ]]; then
+   echo "Starting rpcbind: /sbin/rpcbind -w"
+   /sbin/rpcbind -w
+fi
+echo `/etc/init.d/rpcbind status`
+
+# mount with passing paramaters
+/bin/mount "${@}"

test/e2e/common/volumes.go

@@ -393,6 +393,40 @@ var _ = framework.KubeDescribe("GCP Volumes", func() {
 		})
 	})
 
+	////////////////////////////////////////////////////////////////////////
+	// NFSv3
+	////////////////////////////////////////////////////////////////////////
+
+	framework.KubeDescribe("NFSv3", func() {
+		It("should be mountable for NFSv3", func() {
+			config := VolumeTestConfig{
+				namespace:   namespace.Name,
+				prefix:      "nfs",
+				serverImage: "gcr.io/google_containers/volume-nfs:0.8",
+				serverPorts: []int{2049, 20048},
+			}
+
+			defer func() {
+				if clean {
+					volumeTestCleanup(f, config)
+				}
+			}()
+			pod := startVolumeServer(f, config)
+			serverIP := pod.Status.PodIP
+			framework.Logf("NFS server IP address: %v", serverIP)
+
+			volume := v1.VolumeSource{
+				NFS: &v1.NFSVolumeSource{
+					Server:   serverIP,
+					Path:     "/exports",
+					ReadOnly: true,
+				},
+			}
+			// Must match content of test/images/volumes-tester/nfs/index.html
+			testVolumeClient(f, config, volume, nil, "Hello from NFS!")
+		})
+	})
+
 	////////////////////////////////////////////////////////////////////////
 	// Gluster
 	////////////////////////////////////////////////////////////////////////

test/e2e_node/jenkins/gci-init.yaml

@@ -8,5 +8,5 @@ runcmd:
   - mount -B -o remount,exec /home/kubernetes/bin 
   - wget https://storage.googleapis.com/kubernetes-release/rkt/v1.18.0/rkt -O /home/kubernetes/bin/rkt
   - wget https://storage.googleapis.com/kubernetes-release/rkt/v1.18.0/stage1-fly.aci -O /home/kubernetes/bin/stage1-fly.aci
-  - wget https://storage.googleapis.com/kubernetes-release/gci-mounter/gci-mounter-v2.aci -O /home/kubernetes/bin/gci-mounter-v2.aci
+  - wget https://storage.googleapis.com/kubernetes-release/gci-mounter/gci-mounter-v3.aci -O /home/kubernetes/bin/gci-mounter-v3.aci
   - chmod a+x /home/kubernetes/bin/rkt