Configurare Buildbot per le Macchine Virtuali - Ubuntu 11.10 "oneiric"

Installazione di base

qemu-img create -f qcow2 /kvm/vms/vm-oneiric-amd64-serial.qcow2 8G
qemu-img create -f qcow2 /kvm/vms/vm-oneiric-i386-serial.qcow2 8G

# Avviare ogni VM dall'iso di installazione del server una alla volta
# ed eseguire i seguenti passaggi:
kvm -m 1024 -hda /kvm/vms/vm-oneiric-amd64-serial.qcow2 -cdrom /kvm/iso/ubuntu-11.10-server-amd64.iso -redir tcp:2255::22 -boot d -smp 2 -cpu qemu64 -net nic,model=virtio -net user
kvm -m 1024 -hda /kvm/vms/vm-oneiric-i386-serial.qcow2 -cdrom /kvm/iso/ubuntu-11.10-server-i386.iso -redir tcp:2256::22 -boot d -smp 2 -cpu qemu32,-nx -net nic,model=virtio -net user

# E' ora possibile connettersi al server VNC dal proprio host con:
#
#    vncviewer -via ${remote-host} localhost
#
# (replace ${remote-host} with the host the vm is running on)

# Installare mantenendo per lo più i valori di default, con queste eccezioni:
# * Impostare l'hostname a ubuntu-oneiric
# * Partizionando il disco, scegliere "Guided - use entire disk" (non vogliamo LVM)
# * Nessun update automatico
# * Software da installare: OpenSSH server


# Ora che la VM è installata, configuriamola.
# Se si ha abbastanza memoria, si può fare quanto segue simultaneamente:
kvm -m 1024 -hda /kvm/vms/vm-oneiric-amd64-serial.qcow2 -cdrom /kvm/iso/ubuntu-11.10-server-amd64.iso -redir tcp:2255::22 -boot c -smp 2 -cpu qemu64 -net nic,model=virtio -net user -nographic
kvm -m 1024 -hda /kvm/vms/vm-oneiric-i386-serial.qcow2 -cdrom /kvm/iso/ubuntu-11.10-server-i386.iso -redir tcp:2256::22 -boot c -smp 2 -cpu qemu64 -net nic,model=virtio -net user -nographic

ssh -p 2255 localhost
# si modifichi /boot/grub/menu.lst e visudo, vedere sotto

ssh -p 2256 localhost
# si modifichi /boot/grub/menu.lst e visudo, vedere sotto

ssh -t -p 2255 localhost "mkdir -v .ssh; sudo addgroup $USER sudo"
ssh -t -p 2256 localhost "mkdir -v .ssh; sudo addgroup $USER sudo"

scp -P 2255 /kvm/vms/authorized_keys localhost:.ssh/
scp -P 2256 /kvm/vms/authorized_keys localhost:.ssh/

echo $'Buildbot\n\n\n\n\ny' | ssh -p 2255 localhost 'chmod -R go-rwx .ssh; sudo adduser --disabled-password buildbot; sudo addgroup buildbot sudo; sudo mkdir ~buildbot/.ssh; sudo cp -vi .ssh/authorized_keys ~buildbot/.ssh/; sudo chown -vR buildbot:buildbot ~buildbot/.ssh; sudo chmod -vR go-rwx ~buildbot/.ssh'
echo $'Buildbot\n\n\n\n\ny' | ssh -p 2256 localhost 'chmod -R go-rwx .ssh; sudo adduser --disabled-password buildbot; sudo addgroup buildbot sudo; sudo mkdir ~buildbot/.ssh; sudo cp -vi .ssh/authorized_keys ~buildbot/.ssh/; sudo chown -vR buildbot:buildbot ~buildbot/.ssh; sudo chmod -vR go-rwx ~buildbot/.ssh'

scp -P 2255 /kvm/vms/ttyS0.conf buildbot@localhost:
scp -P 2256 /kvm/vms/ttyS0.conf buildbot@localhost:

ssh -p 2255 buildbot@localhost 'sudo cp -vi ttyS0.conf /etc/init/; rm -v ttyS0.conf; sudo shutdown -h now'
ssh -p 2256 buildbot@localhost 'sudo cp -vi ttyS0.conf /etc/init/; rm -v ttyS0.conf; sudo shutdown -h now'

Abilitare sudo senza password:

sudo VISUAL=vi visudo
# Aggiungere una riga alla fine: `%sudo ALL=NOPASSWD: ALL'

Modificare /boot/grub/menu.lst:

sudo vi /etc/default/grub

# Aggiungere/modificare alcune voci:
    GRUB_CMDLINE_LINUX_DEFAULT="console=tty0 console=ttyS0,115200n8"
    GRUB_TERMINAL="serial"
    GRUB_SERIAL_COMMAND="serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1"

sudo update-grub

VM per creare i .deb

for i in '/kvm/vms/vm-oneiric-amd64-serial.qcow2 2255 qemu64' '/kvm/vms/vm-oneiric-i386-serial.qcow2 2256 qemu64' ; do \
  set $i; \
  runvm --user=buildbot --logfile=kernel_$2.log --base-image=$1 --port=$2 --cpu=$3 "$(echo $1 | sed -e 's/serial/build/')" \
    "sudo DEBIAN_FRONTEND=noninteractive apt-get update" \
    "sudo DEBIAN_FRONTEND=noninteractive apt-get -y build-dep mysql-server-5.1" \
    "sudo DEBIAN_FRONTEND=noninteractive apt-get install -y devscripts hardening-wrapper fakeroot doxygen texlive-latex-base ghostscript libevent-dev libssl-dev zlib1g-dev libreadline6-dev" ; \
done

Inoltre:

• Installare la libreria boost richiesta dallo Storage Engine OQGRAPH

VM per testare l'installazione

Si veda sopra per ottenere my.seed e sources.append.

for i in '/kvm/vms/vm-oneiric-amd64-serial.qcow2 2255 qemu64' '/kvm/vms/vm-oneiric-i386-serial.qcow2 2256 qemu64' ; do \
  set $i; \
  runvm --user=buildbot --logfile=kernel_$2.log --base-image=$1 --port=$2 --cpu=$3 "$(echo $1 | sed -e 's/serial/install/')" \
    "sudo DEBIAN_FRONTEND=noninteractive apt-get update" \
    "sudo DEBIAN_FRONTEND=noninteractive apt-get install -y debconf-utils" \
    "= scp -P $2 /kvm/vms/my.seed /kvm/vms/sources.append buildbot@localhost:/tmp/" \
    "sudo debconf-set-selections /tmp/my.seed" \
    "sudo sh -c 'cat /tmp/sources.append >> /etc/apt/sources.list'"; \
done

VM per il test degli aggiornamenti

for i in '/kvm/vms/vm-oneiric-amd64-install.qcow2 2255 qemu64' '/kvm/vms/vm-oneiric-i386-install.qcow2 2256 qemu64' ; do \
  set $i; \
  runvm --user=buildbot --logfile=kernel_$2.log --base-image=$1 --port=$2 --cpu=$3 "$(echo $1 | sed -e 's/install/upgrade/')" \
    'sudo DEBIAN_FRONTEND=noninteractive apt-get install -y mysql-server-5.1' \
    'mysql -uroot -prootpass -e "create database mytest; use mytest; create table t(a int primary key); insert into t values (1); select * from t"' ;\
done

Inoltre:

• Installare le immagini delle VM per testare gli aggiornamenti dei .deb