Installation

Note: All instructions are as root unless specified

Setup CentOS 7.1 in a new virtual machine

• CentOS-7-x86_64-DVD-1503-01.iso (attached to vm)

• Vm configuration:

  • 8GB Ram
  • 80GB HD - Minimum
  • NAT or Bridged
  • Enable Intel Hardware Virtualization VT-x/EPT
  • Time Sync with Host

• Create a personal userid with admin privileges.

• Enable Network in UI.

• Default enable network upon boot.

/etc/sysconfig/network-scripts/ifcfg-eno* equiv eth0 file, ONBOOT=yes

• Add /root/.ssh/authorized_key with id_rsa.pub if desired to ssh to root without password.

Add yum repositories

• Add EPEL repo

  • Create: /etc/yum.repos.d/epel.repo

    [epel]
    name=CentOS-$releasever - Epel
    baseurl=http://dl.fedoraproject.org/pub/epel/$releasever/$basearch/
    enabled=1
    gpgcheck=0
    

• Add repo to support building openstack images

  • Create: /etc/yum.repos.d/openstack-kilo.repo

    [openstack-kilo]
    name=CentOS-$releasever - openstack-kilo
    baseurl=http://centos.mirror.constant.com/7/cloud/x86_64/openstack-kilo/
    enabled=1
    gpgcheck=0
    

Install yum packages and updates

• Install Updates from UI
• Reboot
• yum install git
• As personal user-id (NOT NEEEDED? We use https to clone, pull)
  • Create ssh-keygen for Github (optional).
  • Add ssh-key to personal user-id on Github settings.

Setup the /build directory

• Create the directories:

  /build
    /fileshare
    /imagefactory
    /images
    /isos
    /kickstarts
    /logs
    /references
    /storage
  

• Clone the build scripts and setup symlinks

  cd /build
  git clone https://www.github.com/ManageIQ/manageiq-appliance-build.git
  ln -s manageiq-appliance-build/bin     bin
  ln -s manageiq-appliance-build/scripts scripts
  ln -s manageiq-appliance-build/config  config
  

Setup Imagefactory:

• Clone imagefactory as /build/imagefactory

  cd /build
  git clone https://www.github.com/redhat-imaging/imagefactory.git
  

• Install dependencies:

  yum install libguestfs
  yum install pycurl
  yum install python-zope-interface
  yum install libxml2
  yum install python-httplib2
  yum install python-paste-deploy
  yum install python-oauth2
  yum install python-pygments
  yum install oz
  

Run imagefactory_dev_setup.sh

• Use /build/bin/setup_imagefactory.sh or manually create with the following and run:

  # cd /build/imagefactory
  # python ./setup.py sdist install
  # cd imagefactory-plugins
  # python ./setup.py sdist install
  
  # mkdir /etc/imagefactory/plugins.d
  # cd /etc/imagefactory/plugins.d
  # for PLUGIN in `ls /usr/lib/python2.7/site-packages/imagefactory_plugins |grep -v .py`
  do
    ln -s -v /usr/lib/python2.7/site-packages/imagefactory_plugins/$PLUGIN/$PLUGIN.info ./$PLUGIN.info
  done
  
  # cd /build/imagefactory
  # scripts/imagefactory_dev_setup.sh
  

Setup for vSphere plugin.

• Install dependencies:

  yum install python-psphere
  yum install VMDKstream
  

• Create /root/.psphere/config.yaml

  general:
      server: 127.0.0.1
      username: foo
      password: bar
      template_dir: ~/.psphere/templates/
  logging:
      destination: ~/.psphere/psphere.log
      level: DEBUG # DEBUG, INFO, etc
  

Setup for oVirt plugin.

yum install ovirt-engine-sdk-python

Setup for OpenStack images

yum install python-glanceclient

Setup KVM/Virt

• Install packages

  yum install kvm qemu-kvm qemu-kvm-tools libvirt libvirt-python libguestfs-tools virt-install
  yum install virt-manager virt-viewer
  

• Enable libvirtd

  systemctl enable libvirtd
  systemctl start libvirtd
  

• Package information:

  qemu-kvm        = QEMU emulator
  qemu-img        = QEMU disk image manager
  virt-install    = Command line tool to create virtual machines.
  libvirt         = Provides libvirtd daemon that manages virtual machines and controls hypervisor.
  libvirt-client  = provides client side API’s for accessing servers and also provides virsh utility
                    which provides command line tool to manage virtual machines.
  virt-viewer     = Graphical console
  

Install guest-agent if running as a RHEVM vm

yum install rhevm-guest-agent

Configure virtualization hardware

• In hosting's VM's .vmx file:

  monitor.virtual_mmu = "hardware"
  monitor.virtual_exec = "hardware"
  vhv.enable = "TRUE"
  

• Start imagefactory vm and verify hardware:

  egrep '(vmx|svm)' /proc/cpuinfo
  
  virsh nodeinfo
  
  lsmod | grep kvm
  

• To manually load kernel modules:

  modprobe kvm
  modprobe kvm_intel
  

• Start kvm_intel with nested enabled:

  • Append options in /etc/modprobe.d/dist.conf (create file if not there) options kvm-intel nested=y

Setup build environment

yum install ruby
yum install ruby-devel
yum install zlib-devel

gem install trollop
gem install fog

• For enabling copying to SSH file server, define the following in Root's .bashrc (optional)

  export BUILD_FILE_SERVER="your.file.server.com"
  export BUILD_FILE_SERVER_ACCOUNT="your_id"
  export BUILD_FILE_SERVER_BASE="public_html"  # subdirectory off your_id's home where to scp files to
  

  • Note: root will need password-less access to the account listed above.

Setup VNC Server and Viewer

yum install tigervnc tigervnc-server*
cp /lib/systemd/system/[email protected] /etc/systemd/system/vncserver@:1.service
vi /etc/systemd/system/vncserver@:1.service
  replace: <USER> in ExecStart and PIDFile lines with user to allow vnc server

systemctl daemon-reload

• as <USER>

  • vncpasswd

• as root again

  systemctl enable vncserver@:1.service
  systemctl start vncserver@:1.service
  firewall-cmd --permanent --add-service vnc-server
  systemctl restart firewalld.service
  

Setup Apache for sharing built images

yum install httpd
firewall-cmd --permanent --add-port=80/tcp
firewall-cmd --permanent --add-port=443/tcp
firewall-cmd --reload

mv /etc/httpd/conf.d/welcome.conf /etc/httpd/conf.d/welcome.conf.orig   (Ok not to have index.html)
systemctl start httpd
systemctl enable httpd

cd /var/www/html
ln -s /build/fileshare builds
ln -s /build/isos      isos

• For Apache to be able to see the directories above: (SELinux)

  chmod -R a+rx /build/fileshare
  chcon -R -t httpd_sys_content_t /build/fileshare
  chmod -R a+rx /build/isos
  chcon -R -t httpd_sys_content_t /build/isos
  

• At each update, or simply disable SELinux

  vi /etc/sysconfig/selinux
  SELINUX=disabled
  

Cleanup imagefactory temp storage

• To avoid imagefactory filling up the disk with in flight .meta and .body files, we'll create a daily cron job to clean this up:

chmod +x /build/bin/clean_imagefactory_storage.sh
ln -s /build/bin/clean_imagefactory_storage.sh /etc/cron.daily

File Share (optional)

• vi /etc/hosts a.b.c.d your.file.share.com

• Make sure root can ssh/scp to personal account on your.file.share.com

  su -
  ssh-keygen
  # Press Enter key till you get the prompt
  
  ssh-copy-id -i [email protected]
  # It will once ask for the password of the host system
  
  ssh [email protected]
  

To setup a daily build:

• To make the build run every weekday at 8pm local time:

  # crontab -e
  
  # run the appliance build week nights at 8 pm
  0 20 * * 1-5 /build/bin/nightly-build.sh
  

• Or, we can just run via cron.daily (sometime in the early morning)

  ln -s /build/bin/nightly-build.sh /etc/cron.daily
  

Usage

With installs, vnc is not directly available, but can be accessed via local vncviewer installed on the VM hosting imagefactory.

virsh list

to determine which VM ID is doing the install and then

virsh domdisplay <id_of_domain>

You'll get a local VNC display number for the actual VM doing the install. (As opposed to a VNC server being run inside of Anaconda on the VM. And you can use that display to get to a debug shell and do other installer-like things.

So ...

# sudo virsh list
 Id    Name                           State
----------------------------------------------------
 4     factory-build-4cc03248-2ae3-4614-989e-5982e6850a8c running

# sudo virsh domdisplay 4
vnc://127.0.0.1:0

# vncviewer :0

Assuming, running in Graphical/X mode.

Above is provided with the /build/bin/vncviewer_build.sh [--wait]

Note: vncviewer has an "F8" menu we need to use if we want to send an "alt" keypress to the VM. On t540p thinkpad, with the function lock key on, pressing F8 actually disables WIFI.