Add e2e tests for Gluster and NFS tests.

- add appropriate server containers into contrib/for-tests/volumes-tester
- the tests are off by default (they need kubelet --allow_privileged=True)
  - enable by 'go run hack/e2e.go ... --ginkgo.focus=Volume'
- add glusterfs tools to list of installed packages on each node

contrib/for-tests/volumes-tester/gluster/Dockerfile

@@ -0,0 +1,25 @@
+# Copyright 2015 Google Inc. All rights reserved.
+#
+# 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.
+
+FROM ubuntu:14.04
+MAINTAINER Jan Safranek, jsafrane@redhat.com
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update -qq && apt-get install -y glusterfs-server -qq
+ADD glusterd.vol /etc/glusterfs/
+ADD run_gluster.sh /usr/local/bin/
+ADD index.html /vol/
+
+EXPOSE 24007/tcp 24008/tcp 49152/tcp
+
+ENTRYPOINT ["/usr/local/bin/run_gluster.sh"]

contrib/for-tests/volumes-tester/gluster/Makefile

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+all: push
+
+TAG = 0.1
+
+container:
+	docker build -t gcr.io/google_containers/volume-gluster:$(TAG) .
+
+push: container
+	gcloud preview docker push gcr.io/google_containers/volume-gluster:$(TAG)
+
+clean:

contrib/for-tests/volumes-tester/gluster/README.md

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+# Gluster server container for testing
+
+This container exports test_vol volume with an index.html inside.
+
+Used by test/e2e/* to test GlusterfsVolumeSource. Not for production use!
+
+
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/contrib/for-tests/volumes-tester/gluster/README.md?pixel)]()

contrib/for-tests/volumes-tester/gluster/glusterd.vol

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+# This is default glusterd.vol (incl. commented out base-port),
+# with added "rpc-auth-allow-insecure on" to allow connection
+# from non-privileged ports.
+
+volume management
+    type mgmt/glusterd
+    option working-directory /var/lib/glusterd
+    option transport-type socket,rdma
+    option transport.socket.keepalive-time 10
+    option transport.socket.keepalive-interval 2
+    option transport.socket.read-fail-log off
+#   option base-port 49152
+    option rpc-auth-allow-insecure on
+end-volume

contrib/for-tests/volumes-tester/gluster/index.html

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+Hello from GlusterFS!

contrib/for-tests/volumes-tester/gluster/run_gluster.sh

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+#!/bin/bash
+
+# Copyright 2015 The Kubernetes Authors All rights reserved.
+#
+# 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.
+
+function start()
+{
+    /usr/sbin/glusterd -p /run/glusterd.pid
+    gluster volume create test_vol `hostname -i`:/vol force
+    gluster volume start test_vol
+}
+
+function stop()
+{
+    gluster --mode=script volume stop test_vol force
+    kill $(cat /run/glusterd.pid)
+    exit 0
+}
+
+
+trap stop TERM
+
+start "$@"
+
+while true; do
+ read
+done
+

contrib/for-tests/volumes-tester/nfs/Dockerfile

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+# Copyright 2015 Google Inc. All rights reserved.
+#
+# 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.
+
+FROM ubuntu:14.04
+MAINTAINER Jan Safranek, jsafrane@redhat.com
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update -qq && apt-get install -y nfs-kernel-server -qq
+RUN mkdir -p /exports
+ADD run_nfs.sh /usr/local/bin/
+ADD index.html /exports/index.html
+
+EXPOSE 2049/tcp
+
+ENTRYPOINT ["/usr/local/bin/run_nfs.sh", "/exports"]

contrib/for-tests/volumes-tester/nfs/Makefile

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+all: push
+
+TAG = 0.1
+
+container:
+	docker build -t gcr.io/google_containers/volume-nfs:$(TAG) .
+
+push: container
+	gcloud preview docker push gcr.io/google_containers/volume-nfs:$(TAG)
+
+clean:

contrib/for-tests/volumes-tester/nfs/README.md

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+# NFS server container for testing
+
+This container exports '/' directory with an index.html inside. NFSv4 only.
+
+Inspired by https://github.com/cpuguy83/docker-nfs-server.
+
+Used by test/e2e/* to test NFSVolumeSource. Not for production use!
+
+
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/contrib/for-tests/volumes-tester/nfs/README.md?pixel)]()

contrib/for-tests/volumes-tester/nfs/index.html

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+Hello from NFS!

contrib/for-tests/volumes-tester/nfs/run_nfs.sh

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+#!/bin/bash
+
+# Copyright 2015 The Kubernetes Authors All rights reserved.
+#
+# 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.
+
+function start()
+{
+
+    # prepare /etc/exports
+    for i in "$@"; do
+        # fsid=0: needed for NFSv4
+        echo "$i *(rw,fsid=0)" >> /etc/exports
+        echo "Serving $i"
+    done
+
+    mount -t nfsd nfds /proc/fs/nfsd
+
+    # -N 2 -N 3: disable NFSv2+3
+    # -V 4.x: enable NFSv4
+    /usr/sbin/rpc.mountd -N 2 -N 3 -V 4 -V 4.1
+
+    /usr/sbin/exportfs -r
+    /usr/sbin/rpc.nfsd -N 2 -N 3 -V 4 -V 4.1 2
+
+    echo "NFS started"
+}
+
+function stop()
+{
+    echo "Stopping NFS"
+
+    /usr/sbin/rpc.nfsd 0
+    /usr/sbin/exportfs -au
+    /usr/sbin/exportfs -f
+
+    kill $( pidof rpc.mountd )
+    umount /proc/fs/nfsd
+    echo > /etc/exports
+    exit 0
+}
+
+
+trap stop TERM
+
+start "$@"
+
+# Ugly hack to do nothing and wait for SIGTERM
+while true; do
+    read
+done