935c23f2ad
This patch moves the HostUtil functionality from the util/mount package to the volume/util/hostutil package. All `*NewHostUtil*` calls are changed to return concrete types instead of interfaces. All callers are changed to use the `*NewHostUtil*` methods instead of directly instantiating the concrete types.
216 lines
10 KiB
Go
216 lines
10 KiB
Go
// +build !windows
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/*
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Copyright 2019 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package mount
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"reflect"
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"testing"
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)
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func writeFile(content string) (string, string, error) {
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tempDir, err := ioutil.TempDir("", "mounter_shared_test")
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if err != nil {
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return "", "", err
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}
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filename := filepath.Join(tempDir, "mountinfo")
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err = ioutil.WriteFile(filename, []byte(content), 0600)
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if err != nil {
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os.RemoveAll(tempDir)
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return "", "", err
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}
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return tempDir, filename, nil
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}
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func TestParseMountInfo(t *testing.T) {
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info :=
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`62 0 253:0 / / rw,relatime shared:1 - ext4 /dev/mapper/ssd-root rw,seclabel,data=ordered
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78 62 0:41 / /tmp rw,nosuid,nodev shared:30 - tmpfs tmpfs rw,seclabel
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80 62 0:42 / /var/lib/nfs/rpc_pipefs rw,relatime shared:31 - rpc_pipefs sunrpc rw
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82 62 0:43 / /var/lib/foo rw,relatime shared:32 - tmpfs tmpfs rw
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83 63 0:44 / /var/lib/bar rw,relatime - tmpfs tmpfs rw
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227 62 253:0 /var/lib/docker/devicemapper /var/lib/docker/devicemapper rw,relatime - ext4 /dev/mapper/ssd-root rw,seclabel,data=ordered
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224 62 253:0 /var/lib/docker/devicemapper/test/shared /var/lib/docker/devicemapper/test/shared rw,relatime master:1 shared:44 - ext4 /dev/mapper/ssd-root rw,seclabel,data=ordered
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76 17 8:1 / /mnt/stateful_partition rw,nosuid,nodev,noexec,relatime - ext4 /dev/sda1 rw,commit=30,data=ordered
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80 17 8:1 /var /var rw,nosuid,nodev,noexec,relatime shared:30 - ext4 /dev/sda1 rw,commit=30,data=ordered
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189 80 8:1 /var/lib/kubelet /var/lib/kubelet rw,relatime shared:30 - ext4 /dev/sda1 rw,commit=30,data=ordered
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818 77 8:40 / /var/lib/kubelet/pods/c25464af-e52e-11e7-ab4d-42010a800002/volumes/kubernetes.io~gce-pd/vol1 rw,relatime shared:290 - ext4 /dev/sdc rw,data=ordered
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819 78 8:48 / /var/lib/kubelet/pods/c25464af-e52e-11e7-ab4d-42010a800002/volumes/kubernetes.io~gce-pd/vol1 rw,relatime shared:290 - ext4 /dev/sdd rw,data=ordered
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900 100 8:48 /dir1 /var/lib/kubelet/pods/c25464af-e52e-11e7-ab4d-42010a800002/volume-subpaths/vol1/subpath1/0 rw,relatime shared:290 - ext4 /dev/sdd rw,data=ordered
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901 101 8:1 /dir1 /var/lib/kubelet/pods/c25464af-e52e-11e7-ab4d-42010a800002/volume-subpaths/vol1/subpath1/1 rw,relatime shared:290 - ext4 /dev/sdd rw,data=ordered
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902 102 8:1 /var/lib/kubelet/pods/d4076f24-e53a-11e7-ba15-42010a800002/volumes/kubernetes.io~empty-dir/vol1/dir1 /var/lib/kubelet/pods/d4076f24-e53a-11e7-ba15-42010a800002/volume-subpaths/vol1/subpath1/0 rw,relatime shared:30 - ext4 /dev/sda1 rw,commit=30,data=ordered
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903 103 8:1 /var/lib/kubelet/pods/d4076f24-e53a-11e7-ba15-42010a800002/volumes/kubernetes.io~empty-dir/vol2/dir1 /var/lib/kubelet/pods/d4076f24-e53a-11e7-ba15-42010a800002/volume-subpaths/vol1/subpath1/1 rw,relatime shared:30 - ext4 /dev/sda1 rw,commit=30,data=ordered
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178 25 253:0 /etc/bar /var/lib/kubelet/pods/12345/volume-subpaths/vol1/subpath1/0 rw,relatime shared:1 - ext4 /dev/sdb2 rw,errors=remount-ro,data=ordered
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698 186 0:41 /tmp1/dir1 /var/lib/kubelet/pods/41135147-e697-11e7-9342-42010a800002/volume-subpaths/vol1/subpath1/0 rw shared:26 - tmpfs tmpfs rw
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918 77 8:50 / /var/lib/kubelet/pods/2345/volumes/kubernetes.io~gce-pd/vol1 rw,relatime shared:290 - ext4 /dev/sdc rw,data=ordered
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919 78 8:58 / /var/lib/kubelet/pods/2345/volumes/kubernetes.io~gce-pd/vol1 rw,relatime shared:290 - ext4 /dev/sdd rw,data=ordered
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920 100 8:50 /dir1 /var/lib/kubelet/pods/2345/volume-subpaths/vol1/subpath1/0 rw,relatime shared:290 - ext4 /dev/sdc rw,data=ordered
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150 23 1:58 / /media/nfs_vol rw,relatime shared:89 - nfs4 172.18.4.223:/srv/nfs rw,vers=4.0,rsize=524288,wsize=524288,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=172.18.4.223,local_lock=none,addr=172.18.4.223
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151 24 1:58 / /media/nfs_bindmount rw,relatime shared:89 - nfs4 172.18.4.223:/srv/nfs/foo rw,vers=4.0,rsize=524288,wsize=524288,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=172.18.4.223,local_lock=none,addr=172.18.4.223
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134 23 0:58 / /var/lib/kubelet/pods/43219158-e5e1-11e7-a392-0e858b8eaf40/volumes/kubernetes.io~nfs/nfs1 rw,relatime shared:89 - nfs4 172.18.4.223:/srv/nfs rw,vers=4.0,rsize=524288,wsize=524288,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=172.18.4.223,local_lock=none,addr=172.18.4.223
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187 23 0:58 / /var/lib/kubelet/pods/1fc5ea21-eff4-11e7-ac80-0e858b8eaf40/volumes/kubernetes.io~nfs/nfs2 rw,relatime shared:96 - nfs4 172.18.4.223:/srv/nfs2 rw,vers=4.0,rsize=524288,wsize=524288,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=172.18.4.223,local_lock=none,addr=172.18.4.223
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188 24 0:58 / /var/lib/kubelet/pods/43219158-e5e1-11e7-a392-0e858b8eaf40/volume-subpaths/nfs1/subpath1/0 rw,relatime shared:89 - nfs4 172.18.4.223:/srv/nfs/foo rw,vers=4.0,rsize=524288,wsize=524288,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=172.18.4.223,local_lock=none,addr=172.18.4.223
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347 60 0:71 / /var/lib/kubelet/pods/13195d46-f9fa-11e7-bbf1-5254007a695a/volumes/kubernetes.io~nfs/vol2 rw,relatime shared:170 - nfs 172.17.0.3:/exports/2 rw,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=172.17.0.3,mountvers=3,mountport=20048,mountproto=udp,local_lock=none,addr=172.17.0.3
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222 24 253:0 /tmp/src /mnt/dst rw,relatime shared:1 - ext4 /dev/mapper/vagrant--vg-root rw,errors=remount-ro,data=ordered
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28 18 0:24 / /sys/fs/cgroup ro,nosuid,nodev,noexec shared:9 - tmpfs tmpfs ro,mode=755
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29 28 0:25 / /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:10 - cgroup cgroup rw,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd
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31 28 0:27 / /sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime shared:13 - cgroup cgroup rw,cpuset
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32 28 0:28 / /sys/fs/cgroup/cpu,cpuacct rw,nosuid,nodev,noexec,relatime shared:14 - cgroup cgroup rw,cpu,cpuacct
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33 28 0:29 / /sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime shared:15 - cgroup cgroup rw,freezer
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34 28 0:30 / /sys/fs/cgroup/net_cls,net_prio rw,nosuid,nodev,noexec,relatime shared:16 - cgroup cgroup rw,net_cls,net_prio
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35 28 0:31 / /sys/fs/cgroup/pids rw,nosuid,nodev,noexec,relatime shared:17 - cgroup cgroup rw,pids
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36 28 0:32 / /sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime shared:18 - cgroup cgroup rw,devices
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37 28 0:33 / /sys/fs/cgroup/hugetlb rw,nosuid,nodev,noexec,relatime shared:19 - cgroup cgroup rw,hugetlb
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38 28 0:34 / /sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime shared:20 - cgroup cgroup rw,blkio
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39 28 0:35 / /sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime shared:21 - cgroup cgroup rw,memory
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40 28 0:36 / /sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime shared:22 - cgroup cgroup rw,perf_event
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`
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tempDir, filename, err := writeFile(info)
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if err != nil {
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t.Fatalf("cannot create temporary file: %v", err)
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}
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defer os.RemoveAll(tempDir)
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tests := []struct {
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name string
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id int
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expectedInfo MountInfo
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}{
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{
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"simple bind mount",
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189,
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MountInfo{
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ID: 189,
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ParentID: 80,
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MajorMinor: "8:1",
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Root: "/var/lib/kubelet",
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Source: "/dev/sda1",
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MountPoint: "/var/lib/kubelet",
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OptionalFields: []string{"shared:30"},
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FsType: "ext4",
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MountOptions: []string{"rw", "relatime"},
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SuperOptions: []string{"rw", "commit=30", "data=ordered"},
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},
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},
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{
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"bind mount a directory",
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222,
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MountInfo{
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ID: 222,
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ParentID: 24,
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MajorMinor: "253:0",
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Root: "/tmp/src",
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Source: "/dev/mapper/vagrant--vg-root",
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MountPoint: "/mnt/dst",
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OptionalFields: []string{"shared:1"},
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FsType: "ext4",
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MountOptions: []string{"rw", "relatime"},
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SuperOptions: []string{"rw", "errors=remount-ro", "data=ordered"},
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},
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},
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{
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"more than one optional fields",
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224,
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MountInfo{
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ID: 224,
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ParentID: 62,
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MajorMinor: "253:0",
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Root: "/var/lib/docker/devicemapper/test/shared",
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Source: "/dev/mapper/ssd-root",
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MountPoint: "/var/lib/docker/devicemapper/test/shared",
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OptionalFields: []string{"master:1", "shared:44"},
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FsType: "ext4",
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MountOptions: []string{"rw", "relatime"},
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SuperOptions: []string{"rw", "seclabel", "data=ordered"},
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},
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},
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{
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"cgroup-mountpoint",
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28,
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MountInfo{
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ID: 28,
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ParentID: 18,
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MajorMinor: "0:24",
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Root: "/",
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Source: "tmpfs",
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MountPoint: "/sys/fs/cgroup",
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OptionalFields: []string{"shared:9"},
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FsType: "tmpfs",
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MountOptions: []string{"ro", "nosuid", "nodev", "noexec"},
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SuperOptions: []string{"ro", "mode=755"},
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},
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},
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{
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"cgroup-subsystem-systemd-mountpoint",
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29,
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MountInfo{
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ID: 29,
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ParentID: 28,
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MajorMinor: "0:25",
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Root: "/",
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Source: "cgroup",
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MountPoint: "/sys/fs/cgroup/systemd",
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OptionalFields: []string{"shared:10"},
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FsType: "cgroup",
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MountOptions: []string{"rw", "nosuid", "nodev", "noexec", "relatime"},
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SuperOptions: []string{"rw", "xattr", "release_agent=/lib/systemd/systemd-cgroups-agent", "name=systemd"},
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},
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},
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{
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"cgroup-subsystem-cpuset-mountpoint",
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31,
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MountInfo{
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ID: 31,
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ParentID: 28,
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MajorMinor: "0:27",
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Root: "/",
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Source: "cgroup",
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MountPoint: "/sys/fs/cgroup/cpuset",
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OptionalFields: []string{"shared:13"},
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FsType: "cgroup",
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MountOptions: []string{"rw", "nosuid", "nodev", "noexec", "relatime"},
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SuperOptions: []string{"rw", "cpuset"},
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},
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},
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}
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infos, err := ParseMountInfo(filename)
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if err != nil {
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t.Fatalf("Cannot parse %s: %s", filename, err)
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}
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for _, test := range tests {
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found := false
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for _, info := range infos {
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if info.ID == test.id {
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found = true
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if !reflect.DeepEqual(info, test.expectedInfo) {
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t.Errorf("Test case %q:\n expected: %+v\n got: %+v", test.name, test.expectedInfo, info)
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}
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break
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}
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}
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if !found {
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t.Errorf("Test case %q: mountPoint %d not found", test.name, test.id)
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}
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}
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}
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