#!/bin/bash

# vim: dict+=/usr/share/beakerlib/dictionary.vim cpt=.,w,b,u,t,i,k

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#

#   runtest.sh of VDO smoke test

#   Description: Check that VDO is able to read/write data and start/stop

#   Author: Andy Walsh <awalsh@redhat.com>

#   Vendored into sig-core-t_functional by Adam Saleh <asaleh@redhat.com>

#

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#

#   Copyright (c) 2018 Red Hat, Inc.

#

#   This program is free software: you can redistribute it and/or

#   modify it under the terms of the GNU General Public License as

#   published by the Free Software Foundation, either version 2 of

#   the License, or (at your option) any later version.

#

#   This program is distributed in the hope that it will be

#   useful, but WITHOUT ANY WARRANTY; without even the implied

#   warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR

#   PURPOSE.  See the GNU General Public License for more details.

#

#   You should have received a copy of the GNU General Public License

#   along with this program. If not, see http://www.gnu.org/licenses/.

#

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

# only run on centos 8 for now

if [ "$centos_ver" -ne "8" ]; then

  t_Log "non c8 => SKIPPING"

  exit 0

fi

# Include Beaker environment

. /usr/share/beakerlib/beakerlib.sh || exit 1

arch=$(uname -m)

function insertModuleWithDMesgOutput() {

        moduleName=$1

        modulePath=$(rpm -ql kmod-kvdo | grep "${1}.ko$")

        exitVal=0

        rlRun "dmesg -c > /dev/null"

        rlRun "insmod ${modulePath}" || exitVal=255

        rlRun "dmesg"

        if [ ${exitVal} -ne 0 ]; then

          rlDie "Exiting with failure due to module/kernel incompatibility"

        fi

}

# Check whether we received URLs (via environment variables), and if not, let

# the system just use the enabled repositories to install the packages.

if [ -z ${kvdo_version} ] || [ -z ${kvdo_release} ]; then

        kvdo_pkg=kmod-kvdo

else

        kvdo_pkg=${brew_base_url}/kmod-kvdo/${kvdo_version}/${kvdo_release}/${arch}/kmod-kvdo-${kvdo_version}-${kvdo_release}.${arch}.rpm

fi

if [ -z ${vdo_version} ] || [ -z ${vdo_release} ]; then

        vdo_pkg=vdo

else

        vdo_pkg=${brew_base_url}/vdo/${vdo_version}/${vdo_release}/${arch}/vdo-${vdo_version}-${vdo_release}.${arch}.rpm

fi

rlJournalStart

rlPhaseStartSetup "Create backing device"

        rlRun "TmpDir=\$(mktemp -d)" 0 "Creating tmp directory"

        rlRun "pushd $TmpDir"

        rlRun "df ."

        # If we end up with less than 10G of available space, then we can't

        # create a VDO volume sufficient for testing.  We should bail out as a

        # result.

        loopbackSize=$(($(df --sync --output=avail / | tail -1) * 1024 - 1024*1024*1024))

        if [ ${loopbackSize} -lt $((1024*1024*1024*10)) ]; then

          rlDie "Not enough space to create loopback device."

        fi

        rlRun "truncate -s ${loopbackSize} $TmpDir/loop0.bin" 0 "Laying out loopfile backing"

        rlRun "losetup /dev/loop0 $TmpDir/loop0.bin" 0 "Creating loopdevice"

        rlRun "mkdir -p /mnt/testmount" 0 "Creating test mountpoint dir"

rlPhaseEnd

rlPhaseStartSetup "Install software"

        if ! rlCheckRpm kmod-kvdo

        then

                rlRun "yum install -y ${kvdo_pkg}" 0 "Installing kmod-kvdo" || rlDie "Unable to install 'kmod-kvdo' package"

        	rlAssertRpm kmod-kvdo

        fi

        if ! rlCheckRpm vdo

        then

                rlRun "yum install -y ${vdo_pkg}" 0 "Installing vdo" || rlDie "Unable to install 'vdo' package"

        	rlAssertRpm vdo

        fi

rlPhaseEnd

rlPhaseStartTest "Gather Relevant Info"

        # Gather some system information for debug purposes

        rlRun "uname -a"

        rlRun "find /lib/modules -name kvdo.ko"

        rlRun "modinfo uds" || insertModuleWithDMesgOutput uds

        rlRun "modinfo kvdo" || insertModuleWithDMesgOutput kvdo

rlPhaseEnd

rlPhaseStartTest "Generate Test Data"

        # Write some data, check statistics

        rlRun "dd if=/dev/urandom of=${TmpDir}/urandom_fill_file bs=1M count=100"

        rlRun "ls -lh ${TmpDir}/urandom_fill_file"

rlPhaseEnd

for partition_type in "raw" "lvm" "part"

do

        case $partition_type in

                "raw"*)

                        backing_device=/dev/loop0

                        ;;

                "lvm"*)

                        rlPhaseStartTest "Create LVM backing device"

                                rlRun "pvcreate /dev/loop0" 0 "Creating PV"

                                rlRun "vgcreate vdo_base /dev/loop0" 0 "Creating VG"

                                rlRun "lvcreate -n vdo_base -l100%FREE vdo_base" 0 "Creating LV"

                        rlPhaseEnd

                        backing_device=/dev/vdo_base/vdo_base

                        ;;

                "part"*)

                        rlPhaseStartTest "Create partitioned backing device"

                                rlRun "parted -s /dev/loop0 mklabel msdos" 0 "Creating label"

                                rlRun 'parted -s /dev/loop0 mkpart primary "" 1M -- -1M' 0 "Creating partition"

                        rlPhaseEnd

                        backing_device=/dev/loop0p1

                        ;;

                *)

                        ;;

        esac

        rlPhaseStartTest "Smoke Test"

                # Create the VDO volume and get the initial statistics

                rlRun "vdo create --name=vdo1 --device=${backing_device} --verbose" 0 "Creating VDO volume vdo1"

                rlRun "vdostats vdo1"

                # Create a filesystem and mount the device, check statistics

                rlRun "mkfs.xfs -K /dev/mapper/vdo1" 0 "Making xfs filesystem on VDO volume"

                rlRun "mount -o discard /dev/mapper/vdo1 /mnt/testmount" 0 "Mounting xfs filesystem on VDO volume"

                rlRun "df --sync /mnt/testmount"

                rlRun "vdostats vdo1"

                # Copy the test data onto VDO volume 4 times to get some deduplication

                for i in {1..4}

                do

                  rlRun "cp ${TmpDir}/urandom_fill_file /mnt/testmount/test_file-${i}"

                done

                rlRun "df --sync /mnt/testmount"

                rlRun "vdostats vdo1"

                # Verify the data

                for i in {1..4}

                do

                        rlRun "cmp ${TmpDir}/urandom_fill_file /mnt/testmount/test_file-${i}"

                done

                # Unmount and stop the volume, check statistics

                rlRun "umount /mnt/testmount" 0 "Unmounting testmount"

                rlRun "vdostats vdo1"

                rlRun "vdo stop --name=vdo1 --verbose" 0 "Stopping VDO volume vdo1"

                # Start the VDO volume, mount it, check statistics, verify data.

                rlRun "vdo start --name=vdo1 --verbose" 0 "Starting VDO volume vdo1"

                rlRun "mount -o discard /dev/mapper/vdo1 /mnt/testmount" 0 "Mounting xfs filesystem on VDO volume"

                rlRun "df --sync /mnt/testmount"

                rlRun "vdostats vdo1"

                # Verify the data

                for i in {1..4}

                do

                        rlRun "cmp ${TmpDir}/urandom_fill_file /mnt/testmount/test_file-${i}"

                done

        rlPhaseEnd

        rlPhaseStartCleanup

                rlRun "umount /mnt/testmount" 0 "Unmounting testmount"

                rlRun "vdo remove --name=vdo1 --verbose" 0 "Removing VDO volume vdo1"

                case $partition_type in

                        "lvm"*)

                                rlPhaseStartCleanup

                                        rlRun "lvremove -ff ${backing_device}" 0 "Removing LV"

                                        rlRun "vgremove vdo_base" 0 "Removing VG"

                                        rlRun "pvremove /dev/loop0" 0 "Removing PV"

                                rlPhaseEnd

                                ;;

                        "part"*)

                                rlPhaseStartCleanup

                                    rlRun "parted -s /dev/loop0 rm 1" 0 "Removing partition"

                                rlPhaseEnd

                                ;;

                        *)

                                ;;

                esac

                rlRun "dd if=/dev/zero of=/dev/loop0 bs=1M count=10 oflag=direct" 0 "Wiping Block Device"

        rlPhaseEnd

done

rlPhaseStartCleanup

        rlRun "losetup -d /dev/loop0" 0 "Deleting loopdevice"

        rlRun "rm -f $TmpDir/loop0.bin" 0 "Removing loopfile backing"

        rlRun "popd"

        rlRun "rm -r $TmpDir" 0 "Removing tmp directory"

rlPhaseEnd

rlJournalPrintText

rlJournalEnd