Buildbot Setup for Virtual Machines - Fedora 17

Explains how to provision and configure virtual machine instances specifically for Buildbot testing.

Base Install

qemu-img create -f qcow2 /kvm/vms/vm-fedora17-i386-serial.qcow2 10G
qemu-img create -f qcow2 /kvm/vms/vm-fedora17-amd64-serial.qcow2 10G

Start each VM booting from the server install iso one at a time and perform the following install steps:

kvm -m 1024 -hda /kvm/vms/vm-fedora17-i386-serial.qcow2 -cdrom /kvm/iso/fedora/Fedora-17-i386-DVD.iso -redir tcp:2265::22 -boot d -smp 2 -cpu qemu32,-nx -net nic,model=virtio -net user
kvm -m 1024 -hda /kvm/vms/vm-fedora17-amd64-serial.qcow2 -cdrom /kvm/iso/fedora/Fedora-17-x86_64-DVD.iso -redir tcp:2266::22 -boot d -smp 2 -cpu qemu64 -net nic,model=virtio -net user

Once running you can connect to the VNC server from your local host with:

vncviewer -via ${remote-host} localhost

Replace ${remote-host} with the host the vm is running on.

Note: When you activate the install, vncviewer may disconnect with a complaint about the rect being too large. This is fine. The Fedora installer has just resized the vnc screen. Simply reconnect.

Install, picking default options mostly, with the following notes:

• The Installer will throw up a "Storage Device Warning", choose "Yes, discard any data"

• Set the hostname to fedora17-amd64 (or fedora17-i386)

• Click the "Configure Network" button on the Hostname screen.

  • Edit System eth0 to "connect automatically"

  • Apply and then close the "Network Connections" window

• When partitioning disks, choose "Use All Space"

  • uncheck the "Use LVM" checkbox

  • do not check the "Encrypt system" checkbox

• Minimal install

• Customize Later

When the install is finished, you will be prompted to reboot. Go ahead and do so, but it will fail. Kill the VM (after the reboot fails) and start it up again:

kvm -m 1024 -hda /kvm/vms/vm-fedora17-i386-serial.qcow2 -redir tcp:2265::22 -boot c -smp 2 -cpu qemu64 -net nic,model=virtio -net user
kvm -m 1024 -hda /kvm/vms/vm-fedora17-amd64-serial.qcow2 -redir tcp:2266::22 -boot c -smp 2 -cpu qemu64 -net nic,model=virtio -net user

Until the extra user is installed you must connect via VNC as before. SSH is preferred, so that's what we'll do first. Login as root.

ssh -p 2265 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i ~/.ssh/buildbot.id_dsa root@localhost
ssh -p 2266 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i ~/.ssh/buildbot.id_dsa root@localhost

After logging in as root, install proper ssh and then create a local user:

/sbin/chkconfig --level 35 network on
ifup eth0
yum install openssh-server openssh-clients
adduser ${username}
usermod -a -G wheel ${username}
passwd ${username}

Enable password-less sudo and serial console:

visudo
# Uncomment the line "%wheel        ALL=(ALL)       NOPASSWD: ALL"
# Comment out this line:
# Defaults    requiretty

Still logged in as root, add to /boot/grub/menu.lst:

Editing /boot/grub/menu.lst:

sudo vi /etc/default/grub

# Add/edit these entries:
    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"

grub2-mkconfig -o /boot/grub2/grub.cfg

Logout as root, and then, from the VM host server:

Create a .ssh folder:

ssh -t -p 2265 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i ~/.ssh/buildbot.id_dsa localhost "mkdir -v .ssh"
ssh -t -p 2266 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i ~/.ssh/buildbot.id_dsa localhost "mkdir -v .ssh"

Copy over the authorized keys file:

scp -P 2265 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no /kvm/vms/authorized_keys localhost:.ssh/
scp -P 2266 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no /kvm/vms/authorized_keys localhost:.ssh/

Set permissions on the .ssh folder correctly:

ssh -t -p 2265 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i ~/.ssh/buildbot.id_dsa localhost "chmod -R go-rwx .ssh"
ssh -t -p 2266 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i ~/.ssh/buildbot.id_dsa localhost "chmod -R go-rwx .ssh"

Create the buildbot user:

ssh -p 2265 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no localhost 'chmod -R go-rwx .ssh; sudo adduser buildbot; sudo usermod -a -G wheel buildbot; 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'
ssh -p 2266 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no localhost 'chmod -R go-rwx .ssh; sudo adduser buildbot; sudo usermod -a -G wheel buildbot; 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'

su to the local buildbot user and ssh to the vm to put the key in known_hosts:

For i386:

sudo su - buildbot
ssh -p 2265 buildbot@localhost
# exit, then exit again

For amd64:

sudo su - buildbot
ssh -p 2266 buildbot@localhost
# exit, then exit again

Upload the ttyS0 file and put it where it goes:

scp -P 2265 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no /kvm/vms/ttyS0 buildbot@localhost:
scp -P 2266 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no /kvm/vms/ttyS0 buildbot@localhost:

ssh -p 2265 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no buildbot@localhost 'sudo mkdir -v /etc/event.d;sudo mv -vi ttyS0 /etc/event.d/;'
ssh -p 2266 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no buildbot@localhost 'sudo mkdir -v /etc/event.d;sudo mv -vi ttyS0 /etc/event.d/;'

Update the VM:

ssh -p 2265 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no buildbot@localhost
ssh -p 2266 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no buildbot@localhost

Once logged in:

sudo yum update

After updating, shut down the VM:

sudo shutdown -h now

VMs for building .rpms

On the VM host server:

qemu-img create -b /kvm/vms/vm-fedora17-i386-serial.qcow2 -f qcow2 /kvm/vms/vm-fedora17-i386-build.qcow2
qemu-img create -b /kvm/vms/vm-fedora17-amd64-serial.qcow2 -f qcow2 /kvm/vms/vm-fedora17-amd64-build.qcow2

Boot the VMs with:

kvm -m 1024 -hda /kvm/vms/vm-fedora17-i386-build.qcow2 -redir tcp:2265::22 -boot c -smp 2 -cpu qemu64 -net nic,model=virtio -net user -nographic
kvm -m 1024 -hda /kvm/vms/vm-fedora17-amd64-build.qcow2 -redir tcp:2266::22 -boot c -smp 2 -cpu qemu64 -net nic,model=virtio -net user -nographic

Copy over the boost tar file:

scp -P 2265 -i /kvm/vms/ssh-keys/id_dsa -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null /kvm/boost_1_49_0.tar.gz buildbot@localhost:/dev/shm/
scp -P 2266 -i /kvm/vms/ssh-keys/id_dsa -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null /kvm/boost_1_49_0.tar.gz buildbot@localhost:/dev/shm/

Login to the VMs:

ssh -p 2265 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no buildbot@localhost
ssh -p 2266 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no buildbot@localhost

Once logged in:

sudo yum -y groupinstall 'Development Tools'
sudo yum -y install tar wget tree gperf readline-devel ncurses-devel zlib-devel pam-devel libaio-devel openssl-devel perl perl\(DBI\)
sudo yum -y remove systemtap-sdt-dev
sudo mkdir -vp /usr/src/redhat/SOURCES /usr/src/redhat/SPECS /usr/src/redhat/RPMS /usr/src/redhat/SRPMS

# cmake
wget http://www.cmake.org/files/v2.8/cmake-2.8.8.tar.gz;tar -zxvf cmake-2.8.8.tar.gz;cd cmake-2.8.8;./configure;make;sudo make install

# boost
cd /usr/local/src;sudo tar zxf /dev/shm/boost_1_49_0.tar.gz;cd /usr/local/include/;sudo ln -s ../src/boost_1_49_0/boost .

# shutdown the VM
sudo shutdown -h now

VMs for install testing.

On the VM host server:

qemu-img create -b /kvm/vms/vm-fedora17-i386-serial.qcow2 -f qcow2 /kvm/vms/vm-fedora17-i386-install.qcow2
qemu-img create -b /kvm/vms/vm-fedora17-amd64-serial.qcow2 -f qcow2 /kvm/vms/vm-fedora17-amd64-install.qcow2

Boot the VMs with:

kvm -m 1024 -hda /kvm/vms/vm-fedora17-i386-install.qcow2 -redir tcp:2265::22 -boot c -smp 2 -cpu qemu64 -net nic,model=virtio -net user -nographic
kvm -m 1024 -hda /kvm/vms/vm-fedora17-amd64-install.qcow2 -redir tcp:2266::22 -boot c -smp 2 -cpu qemu64 -net nic,model=virtio -net user -nographic

Login to the VMs:

ssh -p 2265 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no buildbot@localhost
ssh -p 2266 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no buildbot@localhost

Once logged in:

sudo yum -y update
sudo yum -y install patch tar libaio perl perl-Time-HiRes perl-DBI

# shutdown the VM
sudo shutdown -h now

VMs for MySQL upgrade testing

On the VM host server:

qemu-img create -b /kvm/vms/vm-fedora17-i386-serial.qcow2 -f qcow2 /kvm/vms/vm-fedora17-i386-upgrade.qcow2
qemu-img create -b /kvm/vms/vm-fedora17-amd64-serial.qcow2 -f qcow2 /kvm/vms/vm-fedora17-amd64-upgrade.qcow2

Boot the VMs with:

kvm -m 1024 -hda /kvm/vms/vm-fedora17-i386-upgrade.qcow2 -redir tcp:2265::22 -boot c -smp 2 -cpu qemu64 -net nic,model=virtio -net user -nographic
kvm -m 1024 -hda /kvm/vms/vm-fedora17-amd64-upgrade.qcow2 -redir tcp:2266::22 -boot c -smp 2 -cpu qemu64 -net nic,model=virtio -net user -nographic

Login to the VMs:

ssh -p 2265 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no buildbot@localhost
ssh -p 2266 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no buildbot@localhost

Once logged in:

sudo yum -y update
sudo yum -y install tar mysql-server
sudo systemctl enable mysqld.service
sudo systemctl start mysqld.service
mysql -uroot -e "create database mytest; use mytest; create table t(a int primary key); insert into t values (1); select * from t"

# shutdown the VM
sudo shutdown -h now

The MariaDB upgrade testing VMs were not built. Once we have MariaDB Fedora 17 RPMs, then I will attempt building this VM. For now, the placeholder text below is copied from the Buildbot Setup for Virtual Machines - CentOS 6.2 page.

VMs for MariaDB upgrade testing

for i in '/kvm/vms/vm-fedora17-amd64-serial.qcow2 2266 qemu64' '/kvm/vms/vm-fedora17-i386-serial.qcow2 2265 qemu64' ; do \
  set $i; \
  runvm --user=buildbot --logfile=kernel_$2.log --base-image=$1 --port=$2 --cpu=$3 "$(echo $1 | sed -e 's/serial/upgrade2/')" \
    'sudo yum -y update' \
    "= scp -P $2 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no /kvm/vms/MariaDB.repo buildbot@localhost:/tmp/" \
    'sudo rpm --verbose --import http://downloads.mariadb.org/repo/RPM-GPG-KEY-MariaDB' \
    'sudo mv -vi /tmp/MariaDB.repo /etc/yum.repos.d/' \
    'sudo yum -y remove mysql-libs' \
    'sudo yum -y install MariaDB-server MariaDB-client MariaDB-test' \
    'sudo yum -y install cronie cronie-anacron crontabs.noarch postfix' \
    'sudo /etc/init.d/mysqld start' \
    'mysql -uroot -prootpass -e "create database mytest; use mytest; create table t(a int primary key); insert into t values (1); select * from t"' \
    'sudo rm -v /etc/yum.repos.d/MariaDB.repo' \
    "= scp -P $2 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no /kvm/vms/MariaDB.local.repo buildbot@localhost:/tmp/" \
    'sudo mv -vi /tmp/MariaDB.local.repo /etc/yum.repos.d/'; \
done

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