diff options
Diffstat (limited to 'core/modules/run-virt/data/opt/openslx/scripts/systemd-run_virt_env')
| -rwxr-xr-x | core/modules/run-virt/data/opt/openslx/scripts/systemd-run_virt_env | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/core/modules/run-virt/data/opt/openslx/scripts/systemd-run_virt_env b/core/modules/run-virt/data/opt/openslx/scripts/systemd-run_virt_env new file mode 100755 index 00000000..b8236600 --- /dev/null +++ b/core/modules/run-virt/data/opt/openslx/scripts/systemd-run_virt_env @@ -0,0 +1,184 @@ +#!/bin/ash +# ----------------------------------------------------------------------------- +# Copyright (c) 2007..2013 - RZ Uni FR +# Copyright (c) 2007..2013 - OpenSLX GmbH +# +# This program is free software distributed under the GPL version 2. +# See http://openslx.org/COPYING +# +# If you have any feedback please consult http://openslx.org/feedback and +# send your suggestions, praise, or complaints to feedback@openslx.org +# +# General information about OpenSLX can be found at http://openslx.org/ +# ----------------------------------------------------------------------------- +# systemd-vmchooser_env +# - This is the preparation script for the configuration of the virtuali- +# zation tools used later on. +################################################################################ + +################################################################################ +### Define default dirs / get configs +################################################################################ + +export PATH=$PATH:/opt/openslx/bin:/opt/openslx/sbin + +# source config file with vars (e.g. ipaddr, macaddr, hostname) +. /opt/openslx/config + +# from plugins/vmchooser/XX_vmchooser.sh +VMCHOOSER_DIR="/opt/openslx/vmchooser" +VMCHOOSER_CONF_DIR="$VMCHOOSER_DIR/config" + +mkdir -p "${VMCHOOSER_DIR}/data/loopimg" +mkdir -p "${VMCHOOSER_DIR}/fd-loop" -m 1777 + +# mount a clean tempfs (bug in UnionFS prevents loopmount to work) +grep -qE "unionfs |aufs " /proc/mounts && \ + mount -n -o size=1500k -t tmpfs vm-loopimg "${VMCHOOSER_DIR}/data/loopimg" + +# create an empty floppy image of 1.44 MByte size +dd "if=/dev/zero" "of=${VMCHOOSER_DIR}/data/loopimg/fd.img" count=2880 bs=512 2>/dev/null +chmod 0777 "${VMCHOOSER_DIR}/data/loopimg/fd.img" + +# use dos formatter copied into stage3 +mkdosfs "${VMCHOOSER_DIR}/data/loopimg/fd.img" +mount -n -t msdos -o loop,umask=000 "${VMCHOOSER_DIR}/data/loopimg/fd.img" "${VMCHOOSER_DIR}/fd-loop" + +#pvs integration +#if [ $vmchooser_pvs -ne 0 ]; then +# sed -i /usr/share/xsessions/default.desktop \ +# -e "s,vmchooser$,vmchooser --pvs," +#fi + +# setup more scratch space for virtual machines, if configured +mkdir -p /tmp/virt /var/log/samba /run/samba + +chmod a+rwxt /tmp/virt + +# enable normal users to setup the extended virtual machine redo file space +# and image source via network block device (NBD only at the moment) +# allow to start/stop samba on virtual devices (latter one ignores multiple +# independent daemons) + +#cat >> /mnt/etc/sudoers << EOF +# allow to start and stop the special /tmp redo file space (RAM + NBD/NFS server RAID) +#ALL ALL=NOPASSWD: /sbin/losetup /dev/loop* +#ALL ALL=NOPASSWD: /sbin/mdadm -C /dev/md0 -l linear --raid-devices=2 /dev/loop* /dev/* +#ALL ALL=NOPASSWD: /opt/openslx/rootfs/usr/sbin/nbd-client * * /dev/nbd* +# allow to configure and start/stop samba services +#ALL ALL=NOPASSWD: /opt/openslx/rootfs/bin/sed -i /etc/*/smb.conf -e * +#ALL ALL=NOPASSWD: /usr/sbin/nmbd -s /etc/*/smb.conf +#ALL ALL=NOPASSWD: /usr/sbin/smbd -s /etc/*/smb.conf +#ALL ALL=NOPASSWD: /opt/openslx/rootfs/usr/bin/killall nmbd smbd +#EOF + +################################################################################ +### Determine hardware configuration +################################################################################ + +# estimate free mem +mem_free=$(grep -i "^memfree:" /proc/meminfo | awk '{print $2}') +mem_cached=$(grep -i "^cached:" /proc/meminfo | awk '{print $2}') +mem_swapcached=$(grep -i "^swapcached:" /proc/meminfo | awk '{print $2}') +[ -z "$mem_free" ] && mem_free="2048000" +[ -z "$mem_cached" ] && mem_cached="0" +[ -z "$mem_swapcached" ] && mem_swapcached="0" +totalmem="$(expr $(expr $mem_free + $mem_cached + $mem_swapcached) / 1024)" +echo "totalmem=${totalmem}" > "${VMCHOOSER_CONF_DIR}/virtualization.conf" + +# determine number of cpu cores +CPU_CORES=$(grep '^processor.*:' /proc/cpuinfo | wc -l) +if [ "${CPU_CORES}" -gt "1" 2>/dev/null ]; then + echo "cpu_cores=${CPU_CORES}" >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" +else + echo 'cpu_cores=1' >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" +fi + +# general machine architecture (32/64bit) +echo "host_arch=$(uname -m)" >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" + +# check for VT enabled CPU +if grep -q '^flags.*\<vmx\>' "/proc/cpuinfo"; then + echo "vtflag=1" >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" + echo 'kvm_module="kvm_intel"' >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" + elif grep -q '^flags.*\<svm\>' "/proc/cpuinfo"; then + echo "vtflag=1" >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" + echo 'kvm_module="kvm_amd"' >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" + else + echo "vtflag=0" >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" +fi + +# write mac +if [ -n "$SLX_PXE_MAC" ]; then + echo "hostmacaddr=${SLX_PXE_MAC}" >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" +else ## Fallback: + echo "hostmacaddr=$(ip a | grep ether | grep -o -E -i '([0-9a-f]{2}:){5}[0-9a-f]{2}' | head -n 1)" >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" +fi +# read in ip address +echo "hostip=${SLX_PXE_CLIENT_IP}" >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" +# hostname +echo "hostname=\"$(hostname -s)\"" >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" + +# get further hw information and check for traces of available optical and floppy drives +j=0 +for cdrom in $(dmesg|grep -i "Attached scsi CD-ROM sr" | sed "s,.*Attached scsi CD-ROM ,,"); do + echo "cdrom_$j=/dev/${cdrom}" >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" + j=$(expr $j + 1) +done + +j=0 +for floppy in $(dmesg|grep -i "Floppy drive"|sed "s,.*(s): ,,;s, is .*,,"); do + echo "floppy_$j=/dev/${floppy}" >> "${VMCHOOSER_CONF_DIR}/virtualization.conf" + j=$(expr $j + 1) +done + +################################################################################ +### Setup VM networking +################################################################################ + +# there will be three types of network interfaces for virtual machines available +# all will be configured for every type of virtualization tool +# a) br0 is the direct host bridge into the local LAN (br0 already exists) +# vmnet0 for VMware +# vboxnet0 for VirtualBox +# kvmnet0* for Qemu/KVM +# b) nat1 is an internal bridge which "NATes" into the local LAN (with DHCP) +# vmnet1 for VMware +# vboxnet1 for VirtualBox +# kvmnet1* for Qemu/KVM +# c) vsw2 is an internal host bridge to connect software defined LANs to +# vmnet2 for VMware +# vboxnet2 for VirtualBox +# kvmnet2* for Qemu/KVM + +# creating and configuring nat0 +# 192.168.101.0/24 is vm nat. If you ever change this there are a couple of other files +# where you'd need to make changes, so think twice before doing so. ;) +brctl addbr nat1 +ip link set dev nat1 up +ip addr add 192.168.101.1/24 dev nat1 +echo "1" >/proc/sys/net/ipv4/conf/nat1/forwarding +echo "1" >/proc/sys/net/ipv4/conf/br0/forwarding 2>/dev/null +# iptables masquerade rule is now inserted by /opt/openslx/iptables/rules.d/50-virt-nat1-masquerading +### iptables -t nat -A POSTROUTING -o br0 -s 192.168.0.0/16 -j MASQUERADE + +for wait in 1 1 2 2 3 end; do + grep '^SLX_DNS' "/opt/openslx/config" > /dev/null && break + [ "$wait" == "end" ] && echo "No DNS config found, using google dns" && break + echo "Waiting for DNS config.." + sleep "$wait" +done + +# read the DNS configuration and configure the udhcpd +[ -z "${SLX_DNS}" ] && SLX_DNS="8.8.8.8" +sed -i "s,DNSSERVER,${SLX_DNS},;s,DOMAIN,${SLX_NET_DOMAIN}," \ + /opt/openslx/vmchooser/config/udhcpd-nat1.conf + +mkdir -p /var/lib/udhcpd +udhcpd -S /opt/openslx/vmchooser/config/udhcpd-nat1.conf + +# creating and configuring vsw2 +brctl addbr vsw2 +ip link set dev vsw2 up +echo "1" >/proc/sys/net/ipv4/conf/vsw2/forwarding + |