594 lines
16 KiB
Bash
594 lines
16 KiB
Bash
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#!/bin/bash
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# Copyright (C) 2011-2014 OpenStack Foundation
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# Copyright (c) 2014 Citrix Systems, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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#
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Installation
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# ~~~~~~~~~~~~
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# 1.) Start an Ubuntu HVM instance in the Rackspace cloud.
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# 2.) Copy the files from this directory to the instance.
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# 3.) Execute this script on the instance with 3 parameters:
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# - First parameter is the password for the XenServer
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# - Second parameter is a URL to an xva appliance to be installed. For
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# building such an appliance, see:
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# https://github.com/citrix-openstack/openstack-xenapi-testing-xva
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# - Third parameter should be the name-label for the appliance.
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# 4.) Poll the public IP through ssh, and Wait until the file
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# "$FILE_TO_TOUCH_ON_COMPLETION" exists
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#
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#
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# Snapshots
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# ~~~~~~~~~
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# 1.) Delete "$FILE_TO_TOUCH_ON_COMPLETION"
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# 2.) Create snapshot
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# 3.) When booting instances from the snapshot, poll
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# "$FILE_TO_TOUCH_ON_COMPLETION"
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#
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#
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# Details
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# ~~~~~~~
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# WARINING: This script is a workaround, and should only be used for test
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# purposes.
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#
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# This script will install itself as a boot-time script, and will be executed
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# on each system startup. It shrinks the actual Ubuntu installation, and will
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# install a XenServer on the remaining space. This script will also be
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# installed as a startup script in XenServer. After the installation, whenever
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# the instance is restarted, Ubuntu will boot, the networking parameters will
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# be copied to a file, and the instance will be automatically rebooted into
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# XenServer, where the networking will be adjusted, according to the saved
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# parameters. This trickery is needed, because config drive does not include
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# the networking parameters.
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#
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# The appliance will be accessible through the public IP of the instance,
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# and dom0 could be accessed from the instance, on the IP address:
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# 192.168.33.2
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#
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# Logging
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# ~~~~~~~
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# All the output of this script is logged to $0.log
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set -eux
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THIS_FILE="$(readlink -f $0)"
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THIS_DIR="$(dirname $THIS_FILE)"
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INSTALL_DIR="$(dirname $THIS_FILE)"
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STATE_FILE="${THIS_FILE}.state"
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LOG_FILE="${THIS_FILE}.log"
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ADDITIONAL_PARAMETERS="$@"
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XENSERVER_PASSWORD="$1"
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XENSERVER_ISO_URL="http://downloadns.citrix.com.edgesuite.net/akdlm/8159/XenServer-6.2.0-install-cd.iso"
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STAGING_APPLIANCE_URL="$2"
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APPLIANCE_NAME="$3"
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FILE_TO_TOUCH_ON_COMPLETION="/var/run/xenserver.ready"
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# It is assumed, that the appliance has a user, DOMZERO_USER, and by
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# writing the /local/domain/$DOMID/authorized_keys/$DOMZERO_USER xenstore
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# key, the key's contents will be copied into this user's authorized_keys file
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DOMZERO_USER=domzero
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# Do not change this variable, as this path is hardcoded into XenServer's
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# installer. The installer will look for this directory on the device
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# specified by the boot parameter make-ramdisk, and copy the contents of this
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# directory to ramdisk.
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XSINST_DIRECTORY="/xsinst"
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function main() {
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case "$(get_state)" in
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"START")
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dump_disk_config
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run_this_script_on_each_boot
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download_xenserver_files /root/xenserver.iso
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download_appliance "$STAGING_APPLIANCE_URL"
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create_ramdisk_contents /root/xenserver.iso
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extract_xs_installer /root/xenserver.iso /opt/xs-install
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generate_xs_installer_grub_config /opt/xs-install file:///tmp/ramdisk/answerfile.xml
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configure_grub
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update-grub
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create_resizing_initramfs_config
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update-initramfs -u
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set_state "SETUP_INSTALLER"
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reboot
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;;
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"SETUP_INSTALLER")
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dump_disk_config
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delete_resizing_initramfs_config
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update-initramfs -u
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store_cloud_settings "$XSINST_DIRECTORY/cloud-settings"
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store_authorized_keys "$XSINST_DIRECTORY/authorized_keys"
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set_xenserver_installer_as_nextboot
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set_state "XENSERVER_FIRSTBOOT"
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reboot
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;;
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"XENSERVER_FIRSTBOOT")
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wait_for_xapi
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forget_networking
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transfer_settings_to_appliance "/root/cloud-settings"
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add_boot_config_for_ubuntu /mnt/ubuntu/boot /boot/
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start_ubuntu_on_next_boot /boot/
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set_state "UBUNTU"
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sync
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create_done_file_on_appliance
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;;
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"UBUNTU")
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mount_dom0_fs /mnt/dom0
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wait_for_networking
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store_cloud_settings /mnt/dom0/root/cloud-settings
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store_authorized_keys /mnt/dom0/root/.ssh/authorized_keys
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start_xenserver_on_next_boot /mnt/dom0/boot
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set_state "XENSERVER"
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reboot
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;;
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"XENSERVER")
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wait_for_xapi
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forget_networking
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transfer_settings_to_appliance "/root/cloud-settings"
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start_ubuntu_on_next_boot /boot/
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set_state "UBUNTU"
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sync
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create_done_file_on_appliance
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;;
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esac
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}
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function set_state() {
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local state
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state="$1"
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echo "$state" > $STATE_FILE
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}
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function get_state() {
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if [ -e "$STATE_FILE" ]; then
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cat $STATE_FILE
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else
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echo "START"
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fi
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}
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function create_resizing_initramfs_config() {
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cp "$THIS_DIR/xenserver_helper_initramfs_hook.sh" \
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/usr/share/initramfs-tools/hooks/resize
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chmod +x /usr/share/initramfs-tools/hooks/resize
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cp "$THIS_DIR/xenserver_helper_initramfs_premount.sh" \
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/usr/share/initramfs-tools/scripts/local-premount/resize
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chmod +x /usr/share/initramfs-tools/scripts/local-premount/resize
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}
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function delete_resizing_initramfs_config() {
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rm -f /usr/share/initramfs-tools/hooks/resize
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rm -f /usr/share/initramfs-tools/scripts/local-premount/resize
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}
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function run_this_script_on_each_boot() {
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cat > /etc/init/xenserver.conf << EOF
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start on stopped rc RUNLEVEL=[2345]
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task
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script
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/bin/bash $THIS_FILE $ADDITIONAL_PARAMETERS >> $LOG_FILE 2>&1
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end script
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EOF
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}
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function create_done_file_on_appliance() {
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while ! echo "sudo touch $FILE_TO_TOUCH_ON_COMPLETION" | bash_on_appliance; do
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sleep 1
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done
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}
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function download_xenserver_files() {
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local tgt
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tgt="$1"
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wget -qO "$tgt" "$XENSERVER_ISO_URL"
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}
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function download_appliance() {
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local appliance_url
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appliance_url="$1"
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wget -qO /root/staging_vm.xva "$appliance_url"
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}
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function print_answerfile() {
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local repository
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local postinst
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local xenserver_pass
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repository="$1"
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postinst="$2"
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xenserver_pass="$3"
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cat << EOF
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<?xml version="1.0"?>
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<installation srtype="ext">
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<primary-disk preserve-first-partition="true">sda</primary-disk>
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<keymap>us</keymap>
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<root-password>$xenserver_pass</root-password>
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<source type="url">$repository</source>
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<admin-interface name="eth0" proto="static">
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<ip>192.168.34.2</ip>
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<subnet-mask>255.255.255.0</subnet-mask>
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<gateway>192.168.34.1</gateway>
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</admin-interface>
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<timezone>UTC</timezone>
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<script stage="filesystem-populated" type="url">$postinst</script>
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</installation>
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EOF
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}
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function print_postinst_file() {
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local rclocal
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rclocal="$1"
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cat << EOF
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#!/bin/sh
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touch \$1/tmp/postinst.sh.executed
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cp \$1/etc/rc.d/rc.local \$1/etc/rc.d/rc.local.backup
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cat $rclocal >> \$1/etc/rc.d/rc.local
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cp /tmp/ramdisk/cloud-settings \$1/root/
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cp /tmp/ramdisk/authorized_keys \$1/root/.ssh/
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EOF
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}
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function print_rclocal() {
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cat << EOF
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# This is the contents of the rc.local file on XenServer
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mkdir -p /mnt/ubuntu
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mount /dev/sda1 /mnt/ubuntu
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mkdir -p $(dirname $INSTALL_DIR)
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[ -L $INSTALL_DIR ] || ln -s /mnt/ubuntu${INSTALL_DIR} $INSTALL_DIR
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/bin/bash $THIS_FILE $ADDITIONAL_PARAMETERS >> $LOG_FILE 2>&1
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EOF
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}
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function create_ramdisk_contents() {
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local isofile
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local target_dir
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isofile="$1"
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target_dir="$XSINST_DIRECTORY"
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mkdir "$target_dir"
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ln "$isofile" "$target_dir/xenserver.iso"
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print_rclocal > "$target_dir/rclocal"
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print_postinst_file "/tmp/ramdisk/rclocal" > "$target_dir/postinst.sh"
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print_answerfile \
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"file:///tmp/ramdisk" \
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"file:///tmp/ramdisk/postinst.sh" \
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"$XENSERVER_PASSWORD" > "$target_dir/answerfile.xml"
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}
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function extract_xs_installer() {
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local isofile
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local targetpath
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isofile="$1"
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targetpath="$2"
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local mountdir
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mountdir=$(mktemp -d)
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mount -o loop $isofile $mountdir
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mkdir -p $targetpath
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cp \
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$mountdir/install.img \
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$mountdir/boot/xen.gz \
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$mountdir/boot/vmlinuz \
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$targetpath
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umount $mountdir
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}
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function generate_xs_installer_grub_config() {
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local bootfiles
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local answerfile
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bootfiles="$1"
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answerfile="$2"
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cat > /etc/grub.d/45_xs-install << EOF
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#!/bin/sh
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exec tail -n +3 \$0
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menuentry 'XenServer installer' {
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multiboot $bootfiles/xen.gz dom0_max_vcpus=1-2 dom0_mem=max:752M com1=115200,8n1 console=com1,vga
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module $bootfiles/vmlinuz xencons=hvc console=tty0 console=hvc0 make-ramdisk=/dev/sda1 answerfile=$answerfile install
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module $bootfiles/install.img
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}
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EOF
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chmod +x /etc/grub.d/45_xs-install
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}
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function configure_grub() {
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sed -ie 's/^GRUB_HIDDEN_TIMEOUT/#GRUB_HIDDEN_TIMEOUT/g' /etc/default/grub
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sed -ie 's/^GRUB_HIDDEN_TIMEOUT_QUIET/#GRUB_HIDDEN_TIMEOUT_QUIET/g' /etc/default/grub
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# sed -ie 's/^GRUB_TIMEOUT=.*$/GRUB_TIMEOUT=-1/g' /etc/default/grub
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sed -ie 's/^.*GRUB_TERMINAL=.*$/GRUB_TERMINAL=console/g' /etc/default/grub
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sed -ie 's/GRUB_DEFAULT=0/GRUB_DEFAULT=saved/g' /etc/default/grub
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}
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function set_xenserver_installer_as_nextboot() {
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grub-set-default "XenServer installer"
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}
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function store_cloud_settings() {
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local targetpath
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targetpath="$1"
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cat > $targetpath << EOF
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ADDRESS=$(grep -m 1 "address" /etc/network/interfaces | sed -e 's,^ *,,g' | cut -d " " -f 2)
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NETMASK=$(grep -m 1 "netmask" /etc/network/interfaces | sed -e 's,^ *,,g' | cut -d " " -f 2)
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GATEWAY=$(grep -m 1 "gateway" /etc/network/interfaces | sed -e 's,^ *,,g' | cut -d " " -f 2)
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MACADDRESS=$(ifconfig eth0 | sed -ne 's/.*HWaddr \(.*\)$/\1/p' | tr -d " ")
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NAMESERVERS=$(cat /etc/resolv.conf | grep nameserver | cut -d " " -f 2 | sort | uniq | tr '\n' , | sed -e 's/,$//g')
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EOF
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}
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function store_authorized_keys() {
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local targetpath
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targetpath="$1"
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cp /root/.ssh/authorized_keys $1
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}
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function wait_for_xapi() {
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while ! [ -e /var/run/xapi_init_complete.cookie ]; do
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sleep 1
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done
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}
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function forget_networking() {
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||
|
|
xe host-management-disable
|
||
|
|
IFS=,
|
||
|
|
for vlan in $(xe vlan-list --minimal); do
|
||
|
|
xe vlan-destroy uuid=$vlan
|
||
|
|
done
|
||
|
|
|
||
|
|
unset IFS
|
||
|
|
IFS=,
|
||
|
|
for pif in $(xe pif-list --minimal); do
|
||
|
|
xe pif-forget uuid=$pif
|
||
|
|
done
|
||
|
|
unset IFS
|
||
|
|
}
|
||
|
|
|
||
|
|
function add_boot_config_for_ubuntu() {
|
||
|
|
local ubuntu_bootfiles
|
||
|
|
local bootfiles
|
||
|
|
|
||
|
|
ubuntu_bootfiles="$1"
|
||
|
|
bootfiles="$2"
|
||
|
|
|
||
|
|
local kernel
|
||
|
|
local initrd
|
||
|
|
|
||
|
|
kernel=$(ls -1c $ubuntu_bootfiles/vmlinuz-* | head -1)
|
||
|
|
initrd=$(ls -1c $ubuntu_bootfiles/initrd.img-* | head -1)
|
||
|
|
|
||
|
|
cp $kernel $bootfiles/vmlinuz-ubuntu
|
||
|
|
cp $initrd $bootfiles/initrd-ubuntu
|
||
|
|
|
||
|
|
cat >> $bootfiles/extlinux.conf << UBUNTU
|
||
|
|
label ubuntu
|
||
|
|
LINUX $bootfiles/vmlinuz-ubuntu
|
||
|
|
APPEND root=/dev/xvda1 ro quiet splash
|
||
|
|
INITRD $bootfiles/initrd-ubuntu
|
||
|
|
UBUNTU
|
||
|
|
}
|
||
|
|
|
||
|
|
function start_ubuntu_on_next_boot() {
|
||
|
|
local bootfiles
|
||
|
|
|
||
|
|
bootfiles="$1"
|
||
|
|
|
||
|
|
sed -ie 's,default xe-serial,default ubuntu,g' $bootfiles/extlinux.conf
|
||
|
|
}
|
||
|
|
|
||
|
|
function start_xenserver_on_next_boot() {
|
||
|
|
local bootfiles
|
||
|
|
|
||
|
|
bootfiles="$1"
|
||
|
|
|
||
|
|
sed -ie 's,default ubuntu,default xe-serial,g' $bootfiles/extlinux.conf
|
||
|
|
}
|
||
|
|
|
||
|
|
function mount_dom0_fs() {
|
||
|
|
local target
|
||
|
|
|
||
|
|
target="$1"
|
||
|
|
|
||
|
|
mkdir -p $target
|
||
|
|
mount /dev/xvda2 $target
|
||
|
|
}
|
||
|
|
|
||
|
|
function wait_for_networking() {
|
||
|
|
while ! ping -c 1 xenserver.org > /dev/null 2>&1; do
|
||
|
|
sleep 1
|
||
|
|
done
|
||
|
|
}
|
||
|
|
|
||
|
|
function bash_on_appliance() {
|
||
|
|
local vm_ip
|
||
|
|
local vm
|
||
|
|
|
||
|
|
vm=$(xe vm-list name-label="$APPLIANCE_NAME" --minimal)
|
||
|
|
|
||
|
|
[ -n "$vm" ]
|
||
|
|
|
||
|
|
# Wait until appliance is accessible
|
||
|
|
while ! ping -c 1 "${vm_ip:-}" > /dev/null 2>&1; do
|
||
|
|
vm_ip=$(xe vm-param-get param-name=networks uuid=$vm | sed -e 's,^.*0/ip: ,,g' | sed -e 's,;.*$,,g')
|
||
|
|
sleep 1
|
||
|
|
done
|
||
|
|
|
||
|
|
ssh \
|
||
|
|
-q \
|
||
|
|
-i /root/dom0key \
|
||
|
|
-o UserKnownHostsFile=/dev/null \
|
||
|
|
-o StrictHostKeyChecking=no \
|
||
|
|
-o BatchMode=yes \
|
||
|
|
"$DOMZERO_USER@$vm_ip" bash -e -u -s -x -- "$@"
|
||
|
|
}
|
||
|
|
|
||
|
|
function configure_networking() {
|
||
|
|
local network_settings
|
||
|
|
|
||
|
|
network_settings="$1"
|
||
|
|
|
||
|
|
. "$network_settings"
|
||
|
|
|
||
|
|
xe pif-introduce \
|
||
|
|
device=eth0 host-uuid=$(xe host-list --minimal) mac=$MACADDRESS
|
||
|
|
|
||
|
|
PIF=$(xe pif-list device=eth0 --minimal)
|
||
|
|
HOST_INT_NET=$(xe network-list name-label="Host internal management network" --minimal)
|
||
|
|
|
||
|
|
ORIGINAL_MGT_NET=$(xe pif-param-get param-name=network-uuid uuid=$PIF)
|
||
|
|
NEW_MGT_NET=$(xe network-create name-label=mgt name-description=mgt)
|
||
|
|
NEW_MGT_VLAN=$(xe vlan-create vlan=100 pif-uuid=$PIF network-uuid=$NEW_MGT_NET)
|
||
|
|
NEW_PIF=$(xe pif-list VLAN=100 device=eth0 --minimal)
|
||
|
|
VM=$(xe vm-list name-label="$APPLIANCE_NAME" --minimal)
|
||
|
|
APP_IMPORTED_NOW="false"
|
||
|
|
if [ -z "$VM" ]; then
|
||
|
|
VM=$(xe vm-import filename=/mnt/ubuntu/root/staging_vm.xva)
|
||
|
|
xe vm-param-set name-label="$APPLIANCE_NAME" uuid=$VM
|
||
|
|
APP_IMPORTED_NOW="true"
|
||
|
|
fi
|
||
|
|
DNS_ADDRESSES=$(echo "$NAMESERVERS" | sed -e "s/,/ /g")
|
||
|
|
|
||
|
|
xe pif-reconfigure-ip \
|
||
|
|
uuid=$PIF \
|
||
|
|
mode=static \
|
||
|
|
IP=0.0.0.0 \
|
||
|
|
netmask=0.0.0.0
|
||
|
|
|
||
|
|
xe pif-reconfigure-ip \
|
||
|
|
uuid=$NEW_PIF \
|
||
|
|
mode=static \
|
||
|
|
IP=192.168.33.2 \
|
||
|
|
netmask=255.255.255.0 \
|
||
|
|
gateway=192.168.33.1 \
|
||
|
|
DNS=192.168.33.1
|
||
|
|
|
||
|
|
xe host-management-reconfigure pif-uuid=$NEW_PIF
|
||
|
|
|
||
|
|
# Purge all vifs of appliance
|
||
|
|
IFS=,
|
||
|
|
for vif in $(xe vif-list vm-uuid=$VM --minimal); do
|
||
|
|
xe vif-destroy uuid=$vif
|
||
|
|
done
|
||
|
|
unset IFS
|
||
|
|
|
||
|
|
# Create vifs for the appliance
|
||
|
|
xe vif-create vm-uuid=$VM network-uuid=$HOST_INT_NET device=0
|
||
|
|
xe vif-create vm-uuid=$VM network-uuid=$ORIGINAL_MGT_NET mac=$MACADDRESS device=1
|
||
|
|
xe vif-create vm-uuid=$VM network-uuid=$NEW_MGT_NET device=2
|
||
|
|
|
||
|
|
xe vm-start uuid=$VM
|
||
|
|
|
||
|
|
# Wait until appliance is accessible
|
||
|
|
while ! ping -c 1 "${VM_IP:-}" > /dev/null 2>&1; do
|
||
|
|
VM_IP=$(xe vm-param-get param-name=networks uuid=$VM | sed -e 's,^.*0/ip: ,,g' | sed -e 's,;.*$,,g')
|
||
|
|
sleep 1
|
||
|
|
done
|
||
|
|
|
||
|
|
if [ "$APP_IMPORTED_NOW" = "true" ]; then
|
||
|
|
rm -f /root/dom0key
|
||
|
|
rm -f /root/dom0key.pub
|
||
|
|
ssh-keygen -f /root/dom0key -P "" -C "dom0"
|
||
|
|
DOMID=$(xe vm-param-get param-name=dom-id uuid=$VM)
|
||
|
|
|
||
|
|
# Authenticate temporary key to appliance
|
||
|
|
xenstore-write /local/domain/$DOMID/authorized_keys/$DOMZERO_USER "$(cat /root/dom0key.pub)"
|
||
|
|
xenstore-chmod -u /local/domain/$DOMID/authorized_keys/$DOMZERO_USER r$DOMID
|
||
|
|
|
||
|
|
while ! echo "true" | bash_on_appliance; do
|
||
|
|
echo "waiting for key to be activated"
|
||
|
|
sleep 1
|
||
|
|
done
|
||
|
|
|
||
|
|
# Remove authorized_keys updater
|
||
|
|
echo "echo \"\" | crontab -" | bash_on_appliance
|
||
|
|
|
||
|
|
# Create an ssh key for domzero user
|
||
|
|
echo "ssh-keygen -f /home/$DOMZERO_USER/.ssh/id_rsa -C $DOMZERO_USER@appliance -N \"\" -q" | bash_on_appliance
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Update network configuration
|
||
|
|
{
|
||
|
|
cat << EOF
|
||
|
|
sudo tee /etc/network/interfaces
|
||
|
|
auto lo
|
||
|
|
iface lo inet loopback
|
||
|
|
|
||
|
|
auto eth0
|
||
|
|
iface eth0 inet dhcp
|
||
|
|
|
||
|
|
auto eth1
|
||
|
|
iface eth1 inet static
|
||
|
|
address $ADDRESS
|
||
|
|
netmask $NETMASK
|
||
|
|
gateway $GATEWAY
|
||
|
|
dns-nameservers $DNS_ADDRESSES
|
||
|
|
|
||
|
|
auto eth2
|
||
|
|
iface eth2 inet static
|
||
|
|
address 192.168.33.1
|
||
|
|
netmask 255.255.255.0
|
||
|
|
EOF
|
||
|
|
} | bash_on_appliance
|
||
|
|
|
||
|
|
tmpdomzerokey=$(mktemp)
|
||
|
|
|
||
|
|
# Enable domzero user to log in to dom0
|
||
|
|
echo "cat /home/$DOMZERO_USER/.ssh/id_rsa.pub" | bash_on_appliance > $tmpdomzerokey
|
||
|
|
|
||
|
|
# Update ssh keys and reboot, so settings applied
|
||
|
|
{
|
||
|
|
echo "sudo tee /root/.ssh/authorized_keys"
|
||
|
|
cat /root/.ssh/authorized_keys
|
||
|
|
} | bash_on_appliance
|
||
|
|
|
||
|
|
echo "sudo reboot" | bash_on_appliance
|
||
|
|
|
||
|
|
cat $tmpdomzerokey >> /root/.ssh/authorized_keys
|
||
|
|
}
|
||
|
|
|
||
|
|
function transfer_settings_to_appliance() {
|
||
|
|
local network_settings
|
||
|
|
|
||
|
|
network_settings="$1"
|
||
|
|
|
||
|
|
configure_networking "$network_settings"
|
||
|
|
/opt/xensource/libexec/interface-reconfigure rewrite
|
||
|
|
}
|
||
|
|
|
||
|
|
function dump_disk_config() {
|
||
|
|
echo "DUMPING Primary disk's configuration"
|
||
|
|
sfdisk -d /dev/xvda
|
||
|
|
}
|
||
|
|
|
||
|
|
main
|