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307 lines
10 KiB
307 lines
10 KiB
#!/bin/bash
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# create-arista-veos-image.sh
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# HS-Fulda - sebastian.rieger@informatik.hs-fulda.de
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#
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# changelog:
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# V1.1 added injection of config defined in VM Maestro using config-drivex
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# V1.11 fixed device mapping of extracted partitions, fixed problems with stale swi directory
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# V1.12 rc.eos now supports e1000 and virtio as vnic types (virtio is supported in vEOS >=4.14.5F)
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# V1.2 added dynamic handling of device mapping of extacted partitions
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# V1.21 checking whether it safe to unmount working directories
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# V1.3 added support to delete existing image with the same name and generating the default nova flavor
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# V1.31 added support for newer glance releases (e.g. kilo) used in VIRL 1.0.0
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# V1.32 changed the extension of the bootloader iso to match the size of the partitions to be injected
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# V1.4 support for variable VEOS image sizes (as requested by @Jade_Deane to use custom VEOS images)
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# V1.5 automatic import of subtype and creation of flavors based on image name,
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# short instructions on how to use the image and hint to default node configuration,
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# removed detection of existing image as new VIRL version supports multiple versions
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# usage
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if [ ! $# -eq 3 ] ; then
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echo -e "usage: $0 <Aboot-veos-serial-version.iso> <vEOS-version.vmdk> <new glance image name>, e.g.:\n"
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echo "$0 Aboot-veos-serial-2.0.8.iso vEOS-4.13.4F.vmdk vEOS"
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exit -1
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fi
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# sudo check
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if [ ! $UID -eq 0 ] ; then
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echo "Insufficient privileges. Please consider using sudo -s."
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exit -1
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fi
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ABOOT_SERIAL_ISO=$1
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ABOOT_SERIAL_ISO_BASENAME=$(basename -s .iso $1)
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VEOS_VMDK=$2
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VEOS_VMDK_BASENAME=$(basename -s .vmdk $2)
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GLANCE_IMAGE_NAME=$3
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GLANCE_IMAGE_RELEASE=$VEOS_VMDK_BASENAME-$ABOOT_SERIAL_ISO_BASENAME
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TMP_NAME="vEOS-$GLANCE_IMAGE_RELEASE"
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TIMESTAMP=$(date +%Y%m%d%H%M%S)
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function safe_unmount() {
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echo -n "Unmounting $1..."
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RETRY=0
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until umount $1 &>/dev/null
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do
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echo -n "."
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sleep 1
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RETRY=$((RETRY+1))
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if [ "$RETRY" -ge "5" ] ; then
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echo
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echo "ERROR: unable to unmount working directory $1"
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exit 1
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fi
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done
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echo
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return 0
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}
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echo
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echo "Creating vEOS image..."
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echo "==========================================================="
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# create a copy of Aboot bootloader and extend it to 3G
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cp $1 $TMP_NAME.raw
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echo
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echo "Extracting partitions from vEOS vmdk..."
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echo "==========================================================="
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# convert vmdk to raw and extract two partitions in it
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qemu-img convert -O raw $2 $VEOS_VMDK_BASENAME.raw
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LOOPDEV=$(kpartx -av $VEOS_VMDK_BASENAME.raw)
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LOOPDEV_PART1=$(echo "$LOOPDEV" | sed '1q;d' | cut -d " " -f 3)
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LOOPDEV_PART2=$(echo "$LOOPDEV" | sed '2q;d' | cut -d " " -f 3)
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dd if=/dev/mapper/$LOOPDEV_PART1 of=$VEOS_VMDK_BASENAME-p1.raw
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dd if=/dev/mapper/$LOOPDEV_PART2 of=$VEOS_VMDK_BASENAME-p2.raw
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kpartx -d $VEOS_VMDK_BASENAME.raw
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echo
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echo "Injecting rc.eos startup script to get switch config..."
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echo "==========================================================="
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# inject rc.eos script in first partition of the image, to get switch config defined in VM Maestro (config-drive)
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mkdir swi-$TIMESTAMP
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mount -o loop $VEOS_VMDK_BASENAME-p1.raw swi-$TIMESTAMP
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cd swi-$TIMESTAMP
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cat << EOF > rc.eos
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#!/bin/sh
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#
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# startup script to get node configs from VM Maestro
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#
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echo "Getting switch config from config drive..."
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echo "=========================================="
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mkdir /config-drive
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mount /dev/sdb1 /config-drive
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echo "Getting ip address for ma1 via dhcp..."
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echo "=========================================="
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MANAGEMENT_INTERFACE="ma1"
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ip link show \$MANAGEMENT_INTERFACE
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if [ \$? -ne 0 ]; then
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# if using virtio ma1 will not be up during Eos Init 1, hence we use eth0
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MANAGEMENT_INTERFACE="eth0"
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fi
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dhclient -r \$MANAGEMENT_INTERFACE
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dhclient -1 -v \$MANAGEMENT_INTERFACE >/mnt/flash/dhclient.log
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IP=\$(ip addr show \$MANAGEMENT_INTERFACE | grep inet | tr -s ' ' | cut -d ' ' -f 3 | sed s/"\/"/"\\\\\\\\\/"/g)
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echo \$IP
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sed s/"! ip of ma1 configured on launch"/"ip address \$IP"/g /config-drive/veos_config.txt >/mnt/flash/startup-config.tmp
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cat /mnt/flash/startup-config.tmp
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echo
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echo "Copying switch config from config drive..."
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echo "=========================================="
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cp /mnt/flash/startup-config.tmp /mnt/flash/startup-config
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EOF
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chmod 755 rc.eos
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cd ..
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safe_unmount swi-$TIMESTAMP
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rm -rf swi-$TIMESTAMP
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echo
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echo "Injecting new partitions from vEOS vmdk in Aboot image..."
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echo "==========================================================="
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# calulate size of the two partitions
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PART1_START=$(fdisk -l $VEOS_VMDK_BASENAME.raw | grep "\.raw1" | tr -s " " | cut -d ' ' -f 3)
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PART1_END=$(fdisk -l $VEOS_VMDK_BASENAME.raw | grep "\.raw1" | tr -s " " | cut -d ' ' -f 4)
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PART1_LENGTH=$(expr $PART1_END - $PART1_START)
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PART2_START=$(fdisk -l $VEOS_VMDK_BASENAME.raw | grep "\.raw2" | tr -s " " | cut -d ' ' -f 2)
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PART2_END=$(fdisk -l $VEOS_VMDK_BASENAME.raw | grep "\.raw2" | tr -s " " | cut -d ' ' -f 3)
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PART2_LENGTH=$(expr $PART2_END - $PART2_START)
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# extend the bootloader iso to be able to append the two partitions
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EXTENSION_SIZE=$(ls -lk $VEOS_VMDK_BASENAME.raw | tr -s " " | cut -d " " -f 5)
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truncate -s +$EXTENSION_SIZE $TMP_NAME.raw
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# append the two partitions from vmdk in the bootloader iso
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echo -e "n
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p
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+$PART1_LENGTH
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t
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2
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c
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a
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2
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n
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p
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+$PART2_LENGTH
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t
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3
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12
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w" | fdisk $TMP_NAME.raw >/dev/null
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# copy the partitions from vEOS vmdk to new image
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LOOPDEV=$(kpartx -av $TMP_NAME.raw)
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LOOPDEV_PART2=$(echo "$LOOPDEV" | sed '2q;d' | cut -d " " -f 3)
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LOOPDEV_PART3=$(echo "$LOOPDEV" | sed '3q;d' | cut -d " " -f 3)
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dd if=$VEOS_VMDK_BASENAME-p1.raw of=/dev/mapper/$LOOPDEV_PART2
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dd if=$VEOS_VMDK_BASENAME-p2.raw of=/dev/mapper/$LOOPDEV_PART3
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kpartx -d $TMP_NAME.raw
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echo
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echo "Convert new image to qcow2..."
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echo "==========================================================="
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# convert raw to qcow2
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qemu-img convert -O qcow2 $TMP_NAME.raw $TMP_NAME.qcow2
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echo
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echo "Cleaning up..."
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echo "==========================================================="
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#cleanup
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rm $TMP_NAME.raw
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rm $VEOS_VMDK_BASENAME-p1.raw
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rm $VEOS_VMDK_BASENAME-p2.raw
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rm $VEOS_VMDK_BASENAME.raw
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echo
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echo "Importing image into glance..."
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echo "==========================================================="
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glance image-create --container-format bare --disk-format qcow2 --visibility public --name $GLANCE_IMAGE_NAME \
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--file $TMP_NAME.qcow2 --property hw_disk_bus=ide --property serial=1 \
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--property hw_vif_model=e1000 --property hw_cdrom_type=ide --property release="$GLANCE_IMAGE_RELEASE" --property subtype=IOSv --property config_disk_type=disk
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# create default flavor
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CHECKING_FOR_EXISTING_FLAVOR=$(nova flavor-show vEOS.small 2>&1)
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if [ $? == 1 ]; then
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echo "Creating default flavor vEOS.small..."
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echo "==========================================================="
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nova flavor-create --is-public true vEOS.small auto 1024 0 1
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fi
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CHECKING_FOR_EXISTING_FLAVOR=$(nova flavor-show $GLANCE_IMAGE_NAME.medium 2>&1)
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if [ $? == 1 ]; then
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echo "Creating default flavor $GLANCE_IMAGE_NAME.medium..."
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echo "==========================================================="
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nova flavor-create --is-public true $GLANCE_IMAGE_NAME.medium auto 2048 0 1
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fi
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CHECKING_FOR_EXISTING_FLAVOR=$(nova flavor-show $GLANCE_IMAGE_NAME.small 2>&1)
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if [ $? == 1 ]; then
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echo "Creating default flavor $GLANCE_IMAGE_NAME.small..."
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echo "==========================================================="
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nova flavor-create --is-public true $GLANCE_IMAGE_NAME.small auto 1024 0 1
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fi
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#CHECKING_FOR_EXISTING_SUBTYPE=$(virl_uwm_client subtype-export 2>/dev/null | grep -Po '"'"plugin_desc"'"\s*:\s*"\K([^"]*)')
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CHECKING_FOR_EXISTING_SUBTYPE=$(virl_uwm_client subtype-export 2>/dev/null | grep "\"plugin_name\": \"$GLANCE_IMAGE_NAME\",")
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if [ $? == 1 ]; then
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# create default subtype
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cat << EOF > $TIMESTAMP.default-subtype
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{
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"dynamic-subtypes": [
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{
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"interface_range": 22,
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"config_disk_type": "disk",
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"baseline_image": "$GLANCE_IMAGE_NAME",
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"baseline_flavor": "$GLANCE_IMAGE_NAME.medium",
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"hw_vm_extra": "",
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"plugin_desc": "Arista vEOS",
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"interface_pattern": "Ethernet{0}",
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"interface_management": "Management1",
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"gui_visible": true,
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"cli_serial": 1,
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"hw_ram": 1024,
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"plugin_name": "$GLANCE_IMAGE_NAME",
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"interface_first": 1,
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"config_file": "/veos_config.txt",
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"gui_icon": "iosvl2",
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"plugin_base": "generic"
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}
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]
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}
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EOF
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echo "Creating default subtype vEOS..."
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echo "==========================================================="
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virl_uwm_client subtype-import --dynamic-subtypes @$TIMESTAMP.default-subtype
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rm $TIMESTAMP.default-subtype
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fi
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echo
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echo "Creation of the image finished successfully"
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echo "==========================================================="
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echo "You can import the default Subtype in VM Maestro using"
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echo "\"File->Preferences->Node Subtypes->Restore Defaults\""
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echo "followed by clicking on \"Fetch from Server\". Afterwards,"
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echo "vEOS should appear in the \"Nodes\" section of VM Maestro's"
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echo "Topology Palette. The following default config can be used"
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echo "by pasting it into the Configuration tab after clicking on"
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echo "each vEOS node created in your topology:"
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echo -e "
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! device: veos-1 (vEOS, EOS-4.14.2F)
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!
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! boot system flash:/vEOS.swi
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!
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transceiver qsfp default-mode 4x10G
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!
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hostname veos-1
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!
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spanning-tree mode mstp
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!
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no aaa root
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!
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username admin role network-admin secret 5 \$1\$93LlZesx\$MSqS1D/8NGTSY724FGx1K0
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username cisco role network-admin secret 5 \$1\$rQS0W9wP\$ZUzVG2XoGCCZCJopFp1aV/
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!
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interface Ethernet1
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!
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interface Ethernet2
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!
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interface Management1
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! ip of ma1 configured on launch
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!
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no ip routing
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!
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!
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"
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echo "Of course you modify the config (name, version) to your needs."
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echo "Otherwise, vEOS will will start with an empty configuration and"
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echo "go into Zero-Touch-Provisioning (ZTP) mode. You should also disable"
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echo "\"Auto-generate the configuration based on these attributes\" in"
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echo "the AutoNetkit tab of the node, as AutoNetkit is only supported"
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echo "for the Cisco images in VIRL."
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#testing:
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#
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# nova boot --image "Arista vEOS Disk" --flavor m1.small veos --nic net-id=abc7ad47-55fd-4396-8d31-91dd4d41a18a --nic net-id=abc7ad47-55fd-4396-8d31-91dd4d41a18a --nic net-id=abc7ad47-55fd-4396-8d31-91dd4d41a18a --nic net-id=abc7ad47-55fd-4396-8d31-91dd4d41a18a --nic net-id=abc7ad47-55fd-4396-8d31-91dd4d41a18a
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#
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# using VM Maestro, the image can be chosen as "VM image", e.g., for an IOSv or IOSvL2 node
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