Infrastructure Team/Template virtual machine lucid
This procedure documents how our template Karmic image was created and configured
VM Creation
virt-install --prompt -v --accelerate --nographics -x console=ttyS0,115200 \ --name template-lucid --vcpus=4 --ram $((1*1024)) \ --os-type=linux --os-variant=ubuntujaunty --network bridge:br0 \ --disk path=/srv/vm/template-lucid.qcow2,bus=virtio,sparse=true,size=10 \ --location http://ubuntu.media.mit.edu/ubuntu/dists/lucid/main/installer-amd64/
ip adresse: 140.186.70.109
We install with the minimun of needed package setup:
- ubuntu basic server -> since we use ubuntu server, we want ubuntu basic
- openssh server -> for remote access
After installation:
virsh start --console template-lucid
Configuration (serial console part)
Open the console (virsh console template-karmic) with your installation username and password, then:
sudo -i
aptitude install etckeeper bash-completion git-core strace munin-node duplicity postfix vim devtodo aptitude purge memtest86+ update-alternatives --set editor /usr/bin/vim.basic
<- template-lucid changes
- Remove restricted repositories from /etc/apt/sources.list (fsf asks us to avoid using non-free software).
- Disable PasswordAuthentication in /etc/ssh/sshd_config
vim /etc/etckeeper/etckeeper.conf # comment out bzr, enable git etckeeper init etckeeper commit "Initial commit" echo >>/etc/aliases "root: systems-logs@lists.sugarlabs.org" newliases cd /etc/profile.d ln -s /usr/share/doc/devtodo/examples/scripts.sh devtodo.sh
Append to /etc/network/interfaces, then restart network:
auto tun6to4 iface tun6to4 inet6 v4tunnel # printf "2002:%02x%02x:%02x%02x::1\n" `echo $IPV4ADDR | tr . ' '` address 2002:8cba:466c::1 netmask 16 gateway ::192.88.99.1 local 140.186.70.109 endpoint any
Add these to /etc/sudoers:
#bernie: forward agent Defaults env_keep += "SSH_AUTH_SOCK"
# Uncomment to allow members of group sudo to not need a password # (Note that later entries override this, so you might need to move # it further down) %sudo ALL=NOPASSWD: ALL
Log in with "ssh -A template-jaunty.sugarlabs.org" to copy files from sunjammer
rsync -aP bernie@sunjammer.sugarlabs.org:/usr/src/devtools/ /usr/src/devtools/ ln -sf /usr/src/devtools/sysadm/bashrc.sh /etc/skel/.bashrc ln -sf /usr/src/devtools/sysadm/bashrc.sh /root/.bashrc ln -sf /usr/src/devtools/sysadm/zzz_profile.sh /etc/profile.d/zzz_profile.sh ln -sf /usr/src/devtools/conf/vimrc /etc/vim/vimrc.local
vim /etc/bash.bashrc # enable bash_completion, kill code messing with PS1 vim /etc/profile # set umask 002, kill code messing with PS1
Create initial admin users:
passwd # set a password for root, to be used to log in from the console only
adduser bernie adduser dogi adduser dfarning addgroup bernie sudo addgroup dogi sudo addgroup dfarning sudo mkdir /root/.ssh /home/bernie/.ssh /home/dogi/.ssh /home/dfarning/.ssh cat >/home/bernie/.ssh/authorized_keys XXX cat >/home/dogi/.ssh/authorized_keys YYYY cat >/home/dfarning/.ssh/authorized_keys ZZZ cat >/root/.ssh/authorized_keys XYZ chown -R bernie:bernie /home/bernie/.ssh chown -R dogi:dogi /home/dogi/.ssh chown -R dfarning:dfarning /home/dfarning/.ssh
Insert into /etc/munin/munin.node :
#bernie allow ^140\.186\.70\.53$ # sunjammer.sugarlabs.org allow ^10\.3\.3\.1$ # trinity.trilan allow ^2001:4830:1100:48::2$ # sunjammer.sugarlabs.org (IPv6)
cd /etc/munin/plugins rm if_err_eth0 entropy
Create /etc/system-full-backup.conf :
#bernie: This file MUST have permissions 600 echo "Please configure /etc/system-full-backup.conf and run" echo " ssh-copy-id -i /root/.ssh/id_rsa.pub sugarbackup@backup.sugarlabs.org" echo "then, comment out these lines to enable backups" exit 1 PASSPHRASE=ChangeMe TARGET="scp://sugarbackup@backup.sugarlabs.org/backup/`hostname`"
Create /etc/zzz_profile.conf :
#bernie HOST_COLOR='\033[1;40;37m' HOST_CFLAGS='-march=native' HOST_CORES=4
Edit /etc/default/grub to set the following:
GRUB_TERMINAL=serial GRUB_SERIAL_COMMAND="serial --unit= --speed=115200 --stop=1" GRUB_CMDLINE_LINUX_DEFAULT="console=ttyS0,115200n8 "