[Ovirt-devel] [PATCH node] Added support for local storage configuration.
Darryl L. Pierce
dpierce at redhat.com
Mon Nov 17 22:08:16 UTC 2008
From: Darryl L. Pierce <dpierce redhat com>
NOTE: This is a reduxed patch based on Jim Meyering's changes, and includes
updates to support automated execution.
This patch wipes out the entire disk on the node and replaces it with
a set of partitions. The partitions are a raw partition to hold the bootable
kernel, and the rest of the disk is taken up as an physical volume.
On the physical volume is created the following logical volumes:
* SWAP - swap partition
* ROOT - to host the node image
* CONFIG - to hold node configuration data
* LOGGING - to hold local logs
* DATA - to hold VM images
Signed-off-by: Darryl L. Pierce <dpierce at redhat.com>
---
scripts/ovirt-config-storage | 224 ++++++++++++++++++++++++++++++++++++++++++
scripts/ovirt-firstboot | 5 +
2 files changed, 229 insertions(+), 0 deletions(-)
diff --git a/scripts/ovirt-config-storage b/scripts/ovirt-config-storage
index c856ef1..e3b3592 100755
--- a/scripts/ovirt-config-storage
+++ b/scripts/ovirt-config-storage
@@ -1,2 +1,226 @@
#!/bin/bash
#
+# To automate the partitioning, pass in the specific fields in this order
+# ovirt-config-storage [swap size] [boot size] [root size] [logging size]
+#
+# All sizes are in megabytes
+#
+
+ME=$(basename "$0")
+warn() { printf '%s: %s\n' "$ME" "$*" >&2; }
+die() { warn "$*"; exit 1; }
+
+check_partition_sizes()
+{
+ # FIXME: use this function before performing any partitioning, auto or not
+ :
+ # Perform some sanity checks. E.g.,
+ # What if DATA_SIZE ends up zero or negative?
+ # What if any of those partition sizes is smaller than
+ # the minimum size for an ext3 partition? Diagnose it here
+ # or just let the mke2fs failure suffice.
+}
+
+do_configure()
+{
+ DEVICES=$(for drive in `hal-find-by-capability --capability storage`; do
+ info=$(lshal -u $drive -s)
+ if [[ $info =~ "storage.drive_type = 'disk'" ]]; then
+ lshal -u $drive -s | awk ' /block.device/ {
+ match($0, "block.device = *'"'"'(.*)'"'"'", device)
+ printf "%s", device[1]
+ }'
+ fi
+ done)
+
+ DEVICES="$DEVICES Abort"
+
+ select DEVICE in $DEVICES
+ do
+ case "$DEVICE" in
+ "Abort") return ;;
+
+ *)
+ DRIVE=$DEVICE
+ SPACE=$(for drive in `hal-find-by-capability --capability storage`; do
+ info=$(lshal -u $drive -s)
+ if [[ $info =~ $DRIVE ]]; then
+ lshal -u $drive -s | awk ' /storage.size/ {
+ match($0, "storage.size *= *([0-9]+)", device)
+ printf "%s", device[1]
+ }'
+ fi
+ done)
+
+ SPACE=$(echo "scale=0; $SPACE / (1024 * 1024)" | bc -l)
+ BOOT_SIZE="256"
+ ROOT_SIZE="256"
+ CONFIG_SIZE="5"
+ LOGGING_SIZE="256"
+
+ for i in swap boot root logging config; do
+ uc=$(echo $i|tr '[[:lower:]]' '[[:upper:]]')
+ var=${uc}_SIZE
+ eval "size=\$$var"
+ read -p "Change $i partition size (Currently $size MB)? "
+ if [[ $REPLY =~ ^[0-9]+$ ]] && [[ $REPLY -gt 0 ]]; then
+ eval "$var=$REPLY"
+ else
+ printf "invalid value: '$i'. retaining $size MB.\n"
+ fi
+ done
+
+ return
+ ;;
+ esac
+ done
+}
+
+do_review()
+{
+ if [ -z "$DRIVE" ]; then
+ printf "\nNo storage device selected.\n"
+ return
+ fi
+
+ cat <<EOF
+
+The local disk will be repartitioned as follows:
+================================================
+ Physical Hard Disk: $DRIVE
+ Total storage available: $SPACE MB
+ Swap partition size: $SWAP_SIZE MB
+ Boot partition size: $BOOT_SIZE MB
+ Installation partition size: $ROOT_SIZE MB
+ Configuration partition size: $CONFIG_SIZE MB
+ Logging partition size: $LOGGING_SIZE MB
+
+EOF
+}
+
+perform_partitioning()
+{
+ if [ -z "$DRIVE" ]; then
+ printf "\nNo storage device selected.\n"
+ return
+ fi
+
+ printf "Preparing local storage. Please wait..."
+
+ {
+ vgroups=$(vgdisplay -C | awk '{ print $1" "; }')
+ vgremove -f $vgroups
+
+ # Exit upon any failure.
+ set -e
+
+ dd if=/dev/zero of=$DRIVE bs=1K count=1
+ blockdev --rereadpt $DRIVE
+ partprobe -s $DRIVE
+
+ parted $DRIVE -s "mklabel gpt"
+ parted $DRIVE -s "mkpart primary ext2 0M ${BOOT_SIZE}M"
+ parted $DRIVE -s "mkpart primary ext2 ${BOOT_SIZE}M ${SPACE}M"
+ parted $DRIVE -s "set 2 lvm on"
+
+ pvcreate "${DRIVE}2"
+ pvck
+ vgcreate /dev/HostVG "${DRIVE}2"
+
+ lvcreate --name Swap --size ${SWAP_SIZE}M /dev/HostVG
+ lvcreate --name Root --size ${ROOT_SIZE}M /dev/HostVG
+ lvcreate --name Config --size ${CONFIG_SIZE}M /dev/HostVG
+ lvcreate --name Logging --size ${LOGGING_SIZE}M /dev/HostVG
+ lvcreate --name Data -l 100%FREE /dev/HostVG
+
+ mke2fs -T ext3 "${DRIVE}1" -L "BOOT"
+ tune2fs -c 0 -i 0 "${DRIVE}1"
+ mkswap /dev/HostVG/Swap
+ mke2fs -T ext3 /dev/HostVG/Root -L "ROOT"
+ tune2fs -c 0 -i 0 /dev/HostVG/Root
+ mke2fs -T ext3 /dev/HostVG/Config -L "CONFIG"
+ tune2fs -c 0 -i 0 /dev/HostVG/Config
+ mke2fs -T ext3 /dev/HostVG/Logging -L "LOGGING"
+ tune2fs -c 0 -i 0 /dev/HostVG/Logging
+ mke2fs -T ext3 /dev/HostVG/Data -L "DATA"
+ tune2fs -c 0 -i 0 /dev/HostVG/Data
+ } > /var/log/ovirt-partition.log 2>&1
+
+ printf "Completed!\n\n"
+}
+
+do_confirm()
+{
+ if [ -z "$DRIVE" ]; then
+ printf "\nNo storage device selected.\n"
+ return
+ fi
+
+ while true; do
+ sp=' '
+ w='!!WARNING'
+ wb="$w"'!!'
+ w8="$w$w$w$w$w$w$w$w"
+ printf '%s!!\n' \
+ "$w8" \
+ "$w8" \
+ "$wb$sp$w" \
+ "$wb$sp$w" \
+ "$wb If you proceed, this will destroy all data on your local" \
+ "$wb system, and your hard disk will be irreversably reconfigured" \
+ "$wb$sp$w" \
+ "$wb$sp$w" \
+ "$w8" \
+ "$w8"
+ printf "\n\tContinue? (Y/n) "
+ read
+ case $REPLY in
+ Y|y)
+ check_partition_sizes
+ perform_partitioning
+ break
+ ;;
+ N|n) return ;;
+ esac
+ done
+}
+
+MEM_SIZE=$(virsh --readonly -c qemu:///system nodeinfo \
+ | awk '/Memory size/ { print $3 }')
+case $MEM_SIZE in
+ ''|*[^0-9]*) die failed to get system memory size;;
+esac
+
+MEM_SIZE=$(echo "scale=0; $MEM_SIZE / 1024" | bc -l)
+SWAP_SIZE=$MEM_SIZE
+
+if [ "$1" == "AUTO" ]; then
+ DRIVE=$OVIRT_VOL
+ if [ -n "$OVIRT_BOOT_SIZE" ]; then BOOT_SIZE=$OVIRT_BOOT_SIZE; else BOOT_SIZE=256; fi
+ if [ -n "$OVIRT_ROOT_SIZE" ]; then ROOT_SIZE=$OVIRT_ROOT_SIZE; else ROOT_SIZE=256; fi
+ if [ -n "$OVIRT_LOGGING_SIZE" ]; then LOGGING_SIZE=$OVIRT_LOGGING_SIZE; else LOGGING_SIZE=512; fi
+ if [ -n "$OVIRT_CONFIG_SIZE" ]; then CONFIG_SIZE=$OVIRT_CONFIG_SIZE; else CONFIG_SIZE=5; fi
+ check_partition_sizes
+ printf "Partitioning hard disk..."
+ perform_partitioning
+ printf "[DONE]\n"
+ exit 0
+else
+ while true; do
+
+ OPTIONS="Configure Review Partition Quit"
+ PS3="Choose an option: "
+
+ printf "\n"
+
+ select OPTION in $OPTIONS
+ do
+ case "$OPTION" in
+ "Configure") do_configure ; break ;;
+ "Review") do_review ; break ;;
+ "Partition") do_confirm ; break ;;
+ "Quit") exit ;;
+ esac
+ done
+ done
+fi
diff --git a/scripts/ovirt-firstboot b/scripts/ovirt-firstboot
index 82d9e48..2a334e6 100755
--- a/scripts/ovirt-firstboot
+++ b/scripts/ovirt-firstboot
@@ -29,6 +29,11 @@
start ()
{
+ if [ -n "$OVIRT_VOL" ]; then
+ INTERACTIVE="N"
+ ovirt-config-storage AUTO
+ fi
+
ovirt-config-setup
}
--
1.5.6.5
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