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500 lines
17 KiB
500 lines
17 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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# V1.1.1 fixed device mapping of extracted partitions, fixed problems with stale swi directory
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# V1.1.2 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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# V1.3.1 added support for newer glance releases (e.g. kilo) used in VIRL 1.0.0
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# V1.3.2 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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# V1.4.1 fixed check for existing images
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# V1.5 fixed detection of missing loop files for Ubuntu 16.04 in VIRL >=1.3, added default subtype creation
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# V1.51 fixed default subtype creation to use ssh management and max 22 ports, changed ram to 2GB as recommended by Arista
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# V1.52 fixed default subtype creation to support VIRL version <1.3
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# V2.0 added support for new partition layout of vEOS-lab >= 4.21 images, using an integrated bootloader (as the earlier combined 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-8.0.0.iso vEOS-lab-4.16.9M.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 wait_for_loop_dev_partitions() {
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LOOPDEV_PARTITION_1=$1
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LOOPDEV_PARTITION_2=$2
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echo -n "waiting for loop devs from kpartx ($LOOPDEV_PARTITION_1 and $LOOPDEV_PARTITION_2)"
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LOOP_DEV_RETRIES=0
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until dd if=/dev/mapper/$LOOPDEV_PARTITION_1 of=/dev/null bs=1k count=1 &>/dev/null && dd if=/dev/mapper/$LOOPDEV_PARTITION_2 of=/dev/null bs=1k count=1 &>/dev/null ; do
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echo -n "."
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LOOP_DEV_RETRIES=$(expr $LOOP_DEV_RETRIES + 1)
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if [ $LOOP_DEV_RETRIES -eq 10 ]; then
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echo
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echo "ERROR: timeout waiting for loop devs from kpartx"
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exit -1
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fi
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sleep 1
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done
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return 0
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}
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function remove_loop_devs() {
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LOOP_DEV_IMAGE=$1
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LOOP_DEV_DEL_RETRIES=0
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echo "removing loop devs from kpartx ($LOOP_DEV_IMAGE)"
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until kpartx -vd $LOOP_DEV_IMAGE ; do
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echo -n "."
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LOOP_DEV_DEL_RETRIES=$(expr $LOOP_DEV_DEL_RETRIES + 1)
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if [ $LOOP_DEV_DEL_RETRIES -eq 10 ]; then
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echo
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echo "ERROR: timeout waiting for loop dev removal from kpartx"
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exit -1
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fi
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sleep 1
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done
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echo
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return 0
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}
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function safe_unmount() {
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MOUNTPOINT=$1
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echo -n "Unmounting $MOUNTPOINT..."
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RETRY=0
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until umount $MOUNTPOINT &>/dev/null
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do
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echo -n "."
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sleep 1
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RETRY=$((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 $MOUNTPOINT"
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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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function inject_rc_eos() {
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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 to get switch config defined in VM Maestro (config-drive)
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INJECTION_TIMESTAMP=$1
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VEOS_VMDK_BASENAME_RC_EOS_PART=$2
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mkdir swi-$INJECTION_TIMESTAMP
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echo "loop mounting image..."
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mount -o loop $VEOS_VMDK_BASENAME_RC_EOS_PART swi-$INJECTION_TIMESTAMP
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cd swi-$INJECTION_TIMESTAMP
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echo "injecting rc.eos..."
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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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# check if config drive is CDROM or DISK, CDROM is required for vEOS >=4.21 combined images
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blkid | grep /dev/sr0 | grep CDROM
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if [ \$? -eq 0 ]; then
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# config_disk_type is cdrom
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mount /dev/sr0 /config-drive
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else
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# config_disk_type is disk
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mount /dev/sdb1 /config-drive
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fi
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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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echo "unmounting image..."
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safe_unmount swi-$INJECTION_TIMESTAMP
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rm -rf swi-$INJECTION_TIMESTAMP
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return 0
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}
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# check for an existing image with the same name and offer to delete it prior to creating a new one
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CHECK_FOR_EXISTING_IMAGE=$(glance --os-image-api-version 1 image-show $GLANCE_IMAGE_NAME 2>&1)
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if [ $? == 0 ] ; then
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glance --os-image-api-version 1 image-show $GLANCE_IMAGE_NAME
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echo
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echo
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read -r -p "There is already an image with the same name in glance. Do you want to overwrite it? [y/N] " RESPONSE
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if [[ $RESPONSE =~ ^([yY][eE][sS]|[yY])$ ]] ; then
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echo "Deleting existing image $GLANCE_IMAGE_NAME..."
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echo "==========================================================="
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glance --os-image-api-version 1 image-delete $GLANCE_IMAGE_NAME
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else
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echo "An image with the same name already exists. Either delete this image or choose another name."
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exit -1
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fi
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fi
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echo
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echo "Detecting partition layout..."
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echo "==========================================================="
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# convert vmdk to raw
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echo "Converting vmdk image to raw..."
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qemu-img convert -O raw $2 $VEOS_VMDK_BASENAME.raw
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echo
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echo "vEOS image partition layout:"
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fdisk -l $VEOS_VMDK_BASENAME.raw
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PARTITION_LAYOUT=$(fdisk -l $VEOS_VMDK_BASENAME.raw -l -o device,id | tail -2 | tr -s " " | cut -d " " -f 2)
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PARTITION_TYPE_PART1=$(echo "$PARTITION_LAYOUT" | sed '1q;d')
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PARTITION_TYPE_PART2=$(echo "$PARTITION_LAYOUT" | sed '2q;d')
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if [ "$PARTITION_TYPE_PART1" == "c" ] && [ "$PARTITION_TYPE_PART2" == "12" ]; then
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PARTITION_LAYOUT_TYPE="old"
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CONFIG_DISK_TYPE="disk"
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echo
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echo "Detected old partition layout. Bootloader partition needs to be injected in vEOS image..."
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# create a copy of Aboot bootloader and extend it to vEOS image size
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echo "Creating a copy of Aboot bootloader in $TMP_NAME.raw..."
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cp $1 $TMP_NAME.raw
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LOOPDEV=$(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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echo "Output from kpartx: $LOOPDEV"
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echo "PART1: $LOOPDEV_PART1"
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echo "PART2: $LOOPDEV_PART2"
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wait_for_loop_dev_partitions $LOOPDEV_PART1 $LOOPDEV_PART2
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echo
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echo "using dd to extract partitions..."
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dd if=/dev/mapper/$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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remove_loop_devs $VEOS_VMDK_BASENAME.raw
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# inject rc.eos file to allow configuration from VM Maestro
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inject_rc_eos $TIMESTAMP $VEOS_VMDK_BASENAME-p1.raw
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echo
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echo "Injecting new partitions from vEOS vmdk in Aboot image..."
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echo "==========================================================="
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echo "$VEOS_VMDK_BASENAME.raw (original vEOS vmdk layout):"
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fdisk -l $VEOS_VMDK_BASENAME.raw
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echo "$TMP_NAME.raw (original ABoot bootloader layout):"
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fdisk -l $TMP_NAME.raw
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# calulate size of the two partitions
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PART1_START=$(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 - $PART1_START)
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echo "raw1 start=$PART1_START,end=$PART1_END,length=$PART1_LENGTH"
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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 - $PART2_START)
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echo "raw2 start=$PART2_START,end=$PART2_END,length=$PART2_LENGTH"
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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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echo "extending image $TMP_NAME.raw to +$EXTENSION_SIZE"
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truncate -s +$EXTENSION_SIZE $TMP_NAME.raw
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echo "appending partitions from vmdk in the bootloader iso in $TMP_NAME.raw..."
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# append the two partitions from vmdk in the bootloader iso
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echo -e "n
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p
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+$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 $TMP_NAME.raw
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echo "$TMP_NAME.raw (new combined image layout):"
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fdisk -l $TMP_NAME.raw
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# copy the partitions from vEOS vmdk to new image
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LOOPDEV=$(kpartx -av $TMP_NAME.raw)
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LOOPDEV_FIRST_PART=$(echo "$LOOPDEV" | sed '2q;d' | cut -d " " -f 3)
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LOOPDEV_SECOND_PART=$(echo "$LOOPDEV" | sed '3q;d' | cut -d " " -f 3)
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echo "Output from kpartx: $LOOPDEV"
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echo "PART2: $LOOPDEV_FIRST_PART"
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echo "PART3: $LOOPDEV_SECOND_PART"
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wait_for_loop_dev_partitions $LOOPDEV_FIRST_PART $LOOPDEV_SECOND_PART
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echo
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echo "copying the partitions from vEOS vmdk to new image..."
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dd if=$VEOS_VMDK_BASENAME-p1.raw of=/dev/mapper/$LOOPDEV_FIRST_PART
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dd if=$VEOS_VMDK_BASENAME-p2.raw of=/dev/mapper/$LOOPDEV_SECOND_PART
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remove_loop_devs $TMP_NAME.raw
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rm $VEOS_VMDK_BASENAME-p1.raw
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rm $VEOS_VMDK_BASENAME-p2.raw
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elif [ "$PARTITION_TYPE_PART1" == "17" ] && [ "$PARTITION_TYPE_PART2" == "83" ]; then
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PARTITION_LAYOUT_TYPE="new"
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CONFIG_DISK_TYPE="cdrom"
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echo
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echo "Detected new combined partition layout. Bootloader already integrated in vEOS image ..."
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# extract bootloader partition
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LOOPDEV=$(kpartx -av $ABOOT_SERIAL_ISO)
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LOOPDEV_FIRST_PART=$(echo "$LOOPDEV" | sed '1q;d' | cut -d " " -f 3)
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echo "Output from kpartx: $LOOPDEV"
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echo "PART1: $LOOPDEV_FIRST_PART"
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# waiting for loop parts can be improved, using only one arg, better solution: get rid of kpartx completely and extract parts using dd etc.
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wait_for_loop_dev_partitions $LOOPDEV_FIRST_PART $LOOPDEV_FIRST_PART
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echo
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echo "copying the bootloader partition..."
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dd if=/dev/mapper/$LOOPDEV_FIRST_PART of=$ABOOT_SERIAL_ISO_BASENAME-p1.raw
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remove_loop_devs $ABOOT_SERIAL_ISO
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# create a copy of vEOS image
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echo "Creating a copy of vEOS image in $TMP_NAME.raw..."
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cp $VEOS_VMDK_BASENAME.raw $TMP_NAME.raw
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# modify the content of the partitions of the image
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LOOPDEV=$(kpartx -av $TMP_NAME.raw)
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LOOPDEV_FIRST_PART=$(echo "$LOOPDEV" | sed '1q;d' | cut -d " " -f 3)
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LOOPDEV_SECOND_PART=$(echo "$LOOPDEV" | sed '2q;d' | cut -d " " -f 3)
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echo "Output from kpartx: $LOOPDEV"
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echo "PART1: $LOOPDEV_FIRST_PART"
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echo "PART2: $LOOPDEV_SECOND_PART"
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wait_for_loop_dev_partitions $LOOPDEV_FIRST_PART $LOOPDEV_SECOND_PART
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# inject rc.eos file to allow configuration from VM Maestro
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inject_rc_eos $TIMESTAMP /dev/mapper/$LOOPDEV_SECOND_PART
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# next lines currently commented out to use supplied bootloader in image
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# boot process can maybe be improved as Aboot is looking for /mnt/flash.conf and fails in new images
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#echo
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#echo "Overwrite Aboot bootloader in vEOS image..."
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#echo "==========================================================="
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#dd if=$ABOOT_SERIAL_ISO_BASENAME-p1.raw of=/dev/mapper/$LOOPDEV_FIRST_PART
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sleep 1
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remove_loop_devs $TMP_NAME.raw
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rm $ABOOT_SERIAL_ISO_BASENAME-p1.raw
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else
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echo
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echo "ERROR: Provided vEOS image uses unknown partition layout. Unable to extract and modify partitions."
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exit -1
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fi
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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.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=$GLANCE_IMAGE_NAME --property config_disk_type=$CONFIG_DISK_TYPE
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# create default flavor
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CHECKING_FOR_EXISTING_FLAVOR=$(nova flavor-show $GLANCE_IMAGE_NAME.tiny 2>&1)
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if [ $? == 1 ]; then
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echo "Creating default flavor $GLANCE_IMAGE_NAME.tiny..."
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echo "==========================================================="
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nova flavor-create --is-public true $GLANCE_IMAGE_NAME.tiny auto 1024 0 1
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else
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echo "Default flavor $GLANCE_IMAGE_NAME.tiny already exists..."
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fi
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CHECKING_FOR_EXISTING_FLAVOR=$(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 1536 0 1
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else
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echo "Default flavor $GLANCE_IMAGE_NAME.small already exists..."
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fi
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CHECKING_FOR_EXISTING_FLAVOR=$(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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else
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echo "Default flavor $GLANCE_IMAGE_NAME.medium already exists..."
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fi
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# create default subtype
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cat << EOF > dynamic-subtype-$GLANCE_IMAGE_NAME.json.default.virl-above-1.3
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{
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"dynamic-subtypes": [
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{
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"plugin_base": "generic",
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"device_type": "switch",
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"plugin_desc": "Arista vEOS",
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"cli_protocol": "ssh",
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"plugin_name": "$GLANCE_IMAGE_NAME",
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"cli_serial": 1,
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"interface_range": 22,
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"gui_visible": true,
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"interface_pattern": "Ethernet{0}",
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"baseline_image": "$GLANCE_IMAGE_NAME",
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"config_disk_type": "$CONFIG_DISK_TYPE",
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"hw_ram": 2048,
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"hw_vm_extra": "",
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"gui_icon": "iosvl2",
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"config_file": "/veos_config.txt",
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"interface_first": 1,
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"deprecated_use": "",
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"baseline_flavor": "$GLANCE_IMAGE_NAME.medium",
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"interface_management": "Management1"
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}
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]
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}
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EOF
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|
cat << EOF > dynamic-subtype-$GLANCE_IMAGE_NAME.json.default.virl-below-1.3
|
|
{
|
|
"dynamic-subtypes": [
|
|
{
|
|
"plugin_base": "generic",
|
|
"plugin_desc": "Arista vEOS",
|
|
"cli_protocol": "ssh",
|
|
"plugin_name": "$GLANCE_IMAGE_NAME",
|
|
"cli_serial": 1,
|
|
"interface_range": 22,
|
|
"gui_visible": true,
|
|
"interface_pattern": "Ethernet{0}",
|
|
"baseline_image": "$GLANCE_IMAGE_NAME",
|
|
"config_disk_type": "$CONFIG_DISK_TYPE",
|
|
"hw_ram": 2048,
|
|
"hw_vm_extra": "",
|
|
"gui_icon": "iosvl2",
|
|
"config_file": "/veos_config.txt",
|
|
"interface_first": 1,
|
|
"deprecated_use": "",
|
|
"baseline_flavor": "$GLANCE_IMAGE_NAME.medium",
|
|
"interface_management": "Management1"
|
|
}
|
|
]
|
|
}
|
|
EOF
|
|
CHECKING_FOR_EXISTING_SUBTYPE=$(virl_uwm_client subtype-info --name $GLANCE_IMAGE_NAME 2>&1)
|
|
if [ $? == 255 ]; then
|
|
echo "Creating default subtype $GLANCE_IMAGE_NAME..."
|
|
echo "==========================================================="
|
|
|
|
CHECKING_FOR_EXISTING_DEVICE_TYPE=$(virl_uwm_client subtype-info 2>&1 | grep u\'device_type\':)
|
|
if [ $? == 1 ]; then
|
|
# device_type attribute is not available in VIRL < 1.3, use JSON definition of subtype without this attribute
|
|
echo "detected VIRL version < 1.3.0, selecting appropriate subtype to import"
|
|
virl_uwm_client subtype-import --dynamic-subtypes @dynamic-subtype-$GLANCE_IMAGE_NAME.json.default.virl-below-1.3
|
|
else
|
|
echo "detected VIRL version > 1.3.0, selecting appropriate subtype to import"
|
|
# device_type attribute is available, use JSON definition of subtype including this attribute
|
|
virl_uwm_client subtype-import --dynamic-subtypes @dynamic-subtype-$GLANCE_IMAGE_NAME.json.default.virl-above-1.3
|
|
fi
|
|
else
|
|
echo "Default subtype $GLANCE_IMAGE_NAME already exists..."
|
|
fi
|
|
rm dynamic-subtype-$GLANCE_IMAGE_NAME.json.default.virl-above-1.3
|
|
rm dynamic-subtype-$GLANCE_IMAGE_NAME.json.default.virl-below-1.3
|
|
|
|
echo
|
|
echo "Image creation successful."
|
|
echo "==========================================================="
|
|
echo
|
|
echo "You can import and use the subtype $GLANCE_IMAGE_NAME in VM Maestro..."
|
|
|
|
#testing:
|
|
#
|
|
# 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
|
|
#
|
|
# using VM Maestro, the image can be chosen as "VM image", e.g., for an IOSv or IOSvL2 node
|
|
|