| code |
| SCRIPT=script_to_run
TF=$(mktemp)
cat > $TF << EOF
<domain type='kvm'>
<name>x</name>
<os>
<type arch='x86_64'>hvm</type>
</os>
<memory unit='KiB'>1</memory>
<devices>
<interface type='ethernet'>
<script path='$SCRIPT'/>
</interface>
</devices>
</domain>
EOF
sudo virsh -c qemu:///system create $TF
virsh -c qemu:///system destroy x
|
|
|
| description |
code |
| This requires the user to be in the `libvirt` group to perform privileged file write. If the target directory doesn't exist, `pool-create-as` must be run with the `--build` option. The destination file ownership and permissions can be set in the XML. |
LFILE_DIR=/root
LFILE_NAME=file_to_write
echo 'data' > data_to_write
TF=$(mktemp)
cat > $TF <<EOF
<volume type='file'>
<name>y</name>
<key>$LFILE_DIR/$LFILE_NAME</key>
<source>
</source>
<capacity unit='bytes'>5</capacity>
<allocation unit='bytes'>4096</allocation>
<physical unit='bytes'>5</physical>
<target>
<path>$LFILE_DIR/$LFILE_NAME</path>
<format type='raw'/>
<permissions>
<mode>0600</mode>
<owner>0</owner>
<group>0</group>
</permissions>
</target>
</volume>
EOF
virsh -c qemu:///system pool-create-as x dir --target $LFILE_DIR
virsh -c qemu:///system vol-create --pool x --file $TF
virsh -c qemu:///system vol-upload --pool x $LFILE_DIR/$LFILE_NAME data_to_write
virsh -c qemu:///system pool-destroy x
|
|
|
| description |
code |
| This requires the user to be in the `libvirt` group to perform privileged file read. |
LFILE_DIR=/root
LFILE_NAME=file_to_read
SPATH=file_to_save
virsh -c qemu:///system pool-create-as x dir --target $LFILE_DIR
virsh -c qemu:///system vol-download --pool x $LFILE_NAME $SPATH
virsh -c qemu:///system pool-destroy x
|
|
|
