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infra
ansible
roles
backup-client
Commits
8fa36ec0
Verified
Commit
8fa36ec0
authored
4 years ago
by
nd
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add support for qcow2 vm images
parent
6c214a23
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Changes
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templates/backup-vm.j2
+44
-1
44 additions, 1 deletion
templates/backup-vm.j2
with
44 additions
and
1 deletion
templates/backup-vm.j2
+
44
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1
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8fa36ec0
...
...
@@ -20,6 +20,11 @@ set -euo pipefail
SNAPSHOT
=
"/dev/
$VG
/backup-
$DEVICE
"
lvremove
-f
"
$SNAPSHOT
"
>
/dev/null 2>&1
||
true
done
for
i
in
$DISKS_QCOW2
;
do
extract_lvm_qcow2
SNAPSHOT
=
"/dev/
$VG
/backup-
$DEVICE
"
lvremove
-f
"
$SNAPSHOT
"
>
/dev/null 2>&1
||
true
done
}
function
cleanup_vmmount
{
...
...
@@ -35,6 +40,16 @@ set -euo pipefail
LV
=
`
lvs
--noheadings
-o
lv_name
"
$DISK
"
|
tr
-d
' '
`
}
function
extract_lvm_qcow2
{
DISK
=
`
echo
$i
|
awk
-F
,
'{print $1}'
`
DEVICE
=
`
echo
$i
|
awk
-F
,
'{print $2}'
`
DEVICEPATH
=
`
df
"
$DISK
"
|
awk
'{print $1}'
|
tail
-n1
`
MOUNTPOINT
=
`
df
"
$DISK
"
|
awk
'{print $6}'
|
tail
-n1
`
RELIMAGEPATH
=
"
${
DISK
#
$MOUNTPOINT
}
"
VG
=
`
lvs
--noheadings
-o
vg_name
"
$DEVICEPATH
"
|
tr
-d
' '
`
LV
=
`
lvs
--noheadings
-o
lv_name
"
$DEVICEPATH
"
|
tr
-d
' '
`
}
function
backup_vm
{
# get a list of disks
DISKS
=
`
virsh domblklist
"
$DOMAIN
"
--details
\
...
...
@@ -42,7 +57,13 @@ set -euo pipefail
|
grep
^block
\
|
grep
-v
swap
\
|
awk
'{printf "%s,%s ",$4, $3}'
`
echo
"backing up
$DOMAIN
:
$DISKS
"
DISKS_QCOW2
=
`
virsh domblklist
"
$DOMAIN
"
--details
\
|
sed
-e
's/^[[:space:]]*//'
-e
's/[[:space:]]*$//'
\
|
grep
^file
\
|
grep
-v
swap
\
|
grep
'.qcow2'
\
|
awk
'{printf "%s,%s ",$4, $3}'
`
echo
"backing up
$DOMAIN
:
$DISKS
$DISKS_QCOW2
"
trap
"unfreeze_vm || true; delete_snapshots"
INT TERM EXIT
...
...
@@ -58,6 +79,12 @@ set -euo pipefail
lvcreate
-L16G
-s
-n
"backup-
$DEVICE
"
"
$DISK
"
>
/dev/null
done
# create snapshots of all volumes containing qcow2 images
for
i
in
$DISKS_QCOW2
;
do
extract_lvm_qcow2
lvcreate
-L16G
-s
-n
"backup-
$DEVICE
"
"
$DEVICEPATH
"
>
/dev/null
done
# dump vm config
virsh dumpxml
"
$DOMAIN
"
>
"
$DOMAIN_MOUNTBASE
/config.xml"
...
...
@@ -76,6 +103,21 @@ set -euo pipefail
)
2> /dev/null
done
# mount qcow2 disk images backing storage
for
i
in
$DISKS_QCOW2
;
do
extract_lvm_qcow2
SNAPSHOT
=
"/dev/
$VG
/backup-
$DEVICE
"
fsck
-y
"
$SNAPSHOT
"
>
/dev/null 2> /dev/null
(
mkdir
"
$DOMAIN_MOUNTBASE
/IMAGECONTAINER_
$DEVICE
"
# to be able to run fsck inside the vm we have to mount the containers r/w
mount
-o
rw
"
$SNAPSHOT
"
"
$DOMAIN_MOUNTBASE
/IMAGECONTAINER_
$DEVICE
"
mkdir
"
$DOMAIN_MOUNTBASE
/
$DEVICE
"
guestmount
-m
/dev/sda
-a
"
$DOMAIN_MOUNTBASE
/IMAGECONTAINER_
$DEVICE
/
$RELIMAGEPATH
"
"
$DOMAIN_MOUNTBASE
/
$DEVICE
"
)
2> /dev/null
done
{
%
if
backup_backend
==
'restic'
%
}
# restic backend
source
/etc/backup-client/restic.env
...
...
@@ -83,6 +125,7 @@ set -euo pipefail
--verbose
\
--host
"
$DOMAIN
"
\
--exclude-file
"/etc/backup-client/vms/
$DOMAIN
/exclude_files"
\
--exclude
=
"
$DOMAIN_MOUNTBASE
/IMAGECONTAINER_*"
\
"
$DOMAIN_MOUNTBASE
"
{
% endif %
}
...
...
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