mirror of
https://github.com/ceph/ceph-csi.git
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a67bf8928c
krbdFeatures is set to zero when kernel version < 3.8, i.e. in case where
/sys/bus/rbd/supported_features is absent and we are unable to prepare
the krbd attributes based on kernel version.
When krbdFeatures is set to zero fallback to NBD only when autofallback
is turned ON.
Fixes: #2678
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
(cherry picked from commit 83cc1b0e58)
395 lines
8.2 KiB
Go
395 lines
8.2 KiB
Go
/*
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Copyright 2020 The Ceph-CSI 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 rbd
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import (
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"context"
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"errors"
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"io/ioutil"
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"os"
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"strings"
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"testing"
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librbd "github.com/ceph/go-ceph/rbd"
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"github.com/stretchr/testify/assert"
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)
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func TestHasSnapshotFeature(t *testing.T) {
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t.Parallel()
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tests := []struct {
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features string
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hasFeature bool
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}{
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{"foo", false},
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{"foo,bar", false},
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{"foo,layering,bar", true},
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}
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rv := rbdVolume{}
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for _, test := range tests {
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rv.ImageFeatureSet = librbd.FeatureSetFromNames(strings.Split(test.features, ","))
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if got := rv.hasSnapshotFeature(); got != test.hasFeature {
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t.Errorf("hasSnapshotFeature(%s) = %t, want %t", test.features, got, test.hasFeature)
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}
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}
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}
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func TestValidateImageFeatures(t *testing.T) {
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t.Parallel()
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tests := []struct {
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imageFeatures string
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rbdVol *rbdVolume
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isErr bool
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errMsg string
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}{
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{
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"",
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&rbdVolume{
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Mounter: rbdDefaultMounter,
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},
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false,
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"",
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},
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{
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"layering",
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&rbdVolume{
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Mounter: rbdDefaultMounter,
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},
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false,
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"",
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},
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{
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"layering",
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&rbdVolume{
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Mounter: rbdNbdMounter,
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},
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false,
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"",
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},
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{
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"layering,exclusive-lock,journaling",
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&rbdVolume{
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Mounter: rbdNbdMounter,
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},
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false,
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"",
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},
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{
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"layering,exclusive-lock,object-map,fast-diff",
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&rbdVolume{
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Mounter: rbdDefaultMounter,
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},
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false,
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"",
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},
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{
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"layering,journaling",
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&rbdVolume{
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Mounter: rbdDefaultMounter,
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},
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true,
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"feature journaling requires exclusive-lock to be set",
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},
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{
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"object-map,fast-diff",
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&rbdVolume{
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Mounter: rbdDefaultMounter,
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},
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true,
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"feature object-map requires exclusive-lock to be set",
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},
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{
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"fast-diff",
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&rbdVolume{
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Mounter: rbdDefaultMounter,
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},
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true,
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"feature fast-diff requires object-map to be set",
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},
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{
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"layering,exclusive-lock,journaling",
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&rbdVolume{
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Mounter: rbdDefaultMounter,
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},
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true,
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"feature journaling requires rbd-nbd for mounter",
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},
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{
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"layering,exclusive-lock,journaling",
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&rbdVolume{
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Mounter: rbdDefaultMounter,
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},
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true,
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"feature journaling requires rbd-nbd for mounter",
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},
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{
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"layering,exclusive-loc,journaling",
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&rbdVolume{
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Mounter: rbdNbdMounter,
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},
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true,
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"invalid feature exclusive-loc",
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},
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{
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"ayering",
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&rbdVolume{
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Mounter: rbdDefaultMounter,
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},
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true,
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"invalid feature ayering",
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},
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{
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"deep-flatten",
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&rbdVolume{
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Mounter: rbdDefaultMounter,
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},
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false,
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"",
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},
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}
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for _, test := range tests {
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err := test.rbdVol.validateImageFeatures(test.imageFeatures)
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if test.isErr {
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assert.EqualError(t, err, test.errMsg)
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continue
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}
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assert.Nil(t, err)
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}
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}
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func TestGetCephClientLogFileName(t *testing.T) {
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t.Parallel()
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type args struct {
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id string
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logDir string
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prefix string
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}
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volID := "0001-0024-fed5480a-f00f-417a-a51d-31d8a8144c03-0000000000000003-eba90b33-0156-11ec-a30b-4678a93686c2"
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tests := []struct {
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name string
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args args
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expected string
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}{
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{
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name: "test for empty id",
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args: args{
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id: "",
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logDir: "/var/log/ceph-csi",
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prefix: "rbd-nbd",
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},
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expected: "/var/log/ceph-csi/rbd-nbd-.log",
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},
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{
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name: "test for empty logDir",
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args: args{
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id: volID,
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logDir: "",
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prefix: "rbd-nbd",
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},
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expected: "/var/log/ceph/rbd-nbd-" + volID + ".log",
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},
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{
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name: "test for empty prefix",
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args: args{
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id: volID,
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logDir: "/var/log/ceph-csi",
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prefix: "",
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},
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expected: "/var/log/ceph-csi/ceph-" + volID + ".log",
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},
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{
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name: "test for all unavailable args",
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args: args{
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id: "",
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logDir: "",
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prefix: "",
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},
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expected: "/var/log/ceph/ceph-.log",
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},
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{
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name: "test for all available args",
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args: args{
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id: volID,
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logDir: "/var/log/ceph-csi",
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prefix: "rbd-nbd",
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},
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expected: "/var/log/ceph-csi/rbd-nbd-" + volID + ".log",
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},
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}
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for _, tt := range tests {
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tt := tt
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t.Run(tt.name, func(t *testing.T) {
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t.Parallel()
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val := getCephClientLogFileName(tt.args.id, tt.args.logDir, tt.args.prefix)
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if val != tt.expected {
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t.Errorf("getCephClientLogFileName() got = %v, expected %v", val, tt.expected)
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}
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})
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}
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}
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func TestStrategicActionOnLogFile(t *testing.T) {
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t.Parallel()
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ctx := context.TODO()
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tmpDir := t.TempDir()
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var logFile [3]string
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for i := 0; i < 3; i++ {
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f, err := ioutil.TempFile(tmpDir, "rbd-*.log")
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if err != nil {
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t.Errorf("creating tempfile failed: %v", err)
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}
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logFile[i] = f.Name()
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}
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type args struct {
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logStrategy string
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logFile string
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}
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tests := []struct {
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name string
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args args
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}{
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{
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name: "test for compress",
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args: args{
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logStrategy: "compress",
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logFile: logFile[0],
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},
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},
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{
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name: "test for remove",
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args: args{
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logStrategy: "remove",
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logFile: logFile[1],
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},
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},
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{
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name: "test for preserve",
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args: args{
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logStrategy: "preserve",
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logFile: logFile[2],
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},
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},
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}
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for _, tt := range tests {
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tt := tt
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t.Run(tt.name, func(t *testing.T) {
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t.Parallel()
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strategicActionOnLogFile(ctx, tt.args.logStrategy, tt.args.logFile)
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var err error
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switch tt.args.logStrategy {
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case "compress":
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newExt := strings.Replace(tt.args.logFile, ".log", ".gz", -1)
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if _, err = os.Stat(newExt); os.IsNotExist(err) {
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t.Errorf("compressed logFile (%s) not found: %v", newExt, err)
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}
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os.Remove(newExt)
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case "remove":
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if _, err = os.Stat(tt.args.logFile); !os.IsNotExist(err) {
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t.Errorf("logFile (%s) not removed: %v", tt.args.logFile, err)
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}
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case "preserve":
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if _, err = os.Stat(tt.args.logFile); os.IsNotExist(err) {
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t.Errorf("logFile (%s) not preserved: %v", tt.args.logFile, err)
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}
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os.Remove(tt.args.logFile)
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}
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})
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}
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}
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func TestIsKrbdFeatureSupported(t *testing.T) {
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t.Parallel()
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ctx := context.TODO()
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tests := []struct {
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name string
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featureName string
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isSupported bool
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}{
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{
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name: "supported feature",
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featureName: "layering",
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isSupported: true,
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},
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{
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name: "not supported feature",
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featureName: "journaling",
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isSupported: false,
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},
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}
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for _, tt := range tests {
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tc := tt
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t.Run(tc.name, func(t *testing.T) {
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t.Parallel()
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var err error
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krbdSupportedFeaturesAttr := "0x1"
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krbdFeatures, err = HexStringToInteger(krbdSupportedFeaturesAttr) // initialize krbdFeatures
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if err != nil {
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t.Errorf("HexStringToInteger(%s) failed", krbdSupportedFeaturesAttr)
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}
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// In case /sys/bus/rbd/supported_features is absent and we are
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// not in a position to prepare krbd feature attributes,
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// isKrbdFeatureSupported returns error ErrNotExist
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supported, err := isKrbdFeatureSupported(ctx, tc.featureName)
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if err != nil && !errors.Is(err, os.ErrNotExist) {
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t.Errorf("isKrbdFeatureSupported(%s) returned error: %v", tc.featureName, err)
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} else if supported != tc.isSupported {
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t.Errorf("isKrbdFeatureSupported(%s) returned supported status, expected: %t, got: %t",
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tc.featureName, tc.isSupported, supported)
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}
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})
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}
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}
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func Test_checkValidImageFeatures(t *testing.T) {
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t.Parallel()
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tests := []struct {
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name string
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imageFeatures string
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ok bool
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want bool
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}{
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{
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name: "test for valid image features",
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imageFeatures: "layering,exclusive-lock,object-map,fast-diff,deep-flatten",
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ok: true,
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want: true,
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},
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{
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name: "test for empty image features",
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imageFeatures: "",
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ok: true,
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want: false,
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},
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}
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for _, tt := range tests {
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tc := tt
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t.Run(tc.name, func(t *testing.T) {
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t.Parallel()
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if got := checkValidImageFeatures(tc.imageFeatures, tc.ok); got != tc.want {
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t.Errorf("checkValidImageFeatures() = %v, want %v", got, tc.want)
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}
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})
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}
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}
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