Control Server Install
------------------------

$ packstack
如果失敗,解決問題後用以下指令繼續安裝
$ packstack --answer-file=/root/packstack-answers-xxxxxxxxxx.txt

Q&A
-------------------------

<<< DB >>>
Q1:
Icehouse  puppet DB pid error
A1:
$ vi /usr/lib/python2.7/site-packages/packstack/puppet/templates/mongodb.pp
pidfilepath => '/var/run/mongodb/mongod.pid'

Q2:
Error: Execution of '/usr/bin/yum -d 0 -e 0 -y install mongodb-server' returned 1: Yum command has been deprecated, redirecting to '/usr/bin/dnf -d 0 -e 0 -y install mongodb-server'.
A2:
$ vim /usr/share/openstack-puppet/modules/mongodb/manifests/params.pp

-        $pidfilepath         = '/var/run/mongodb/mongodb.pid'
+        if ($::operatingsystem == 'fedora' and versioncmp($::operatingsystemrelease, '23') >= 0 or
+            $::operatingsystem != 'fedora' and versioncmp($::operatingsystemrelease, '7.0') >= 0) {
+          $pidfilepath         = '/var/run/mongodb/mongod.pid'
+        } else {
+          $pidfilepath         = '/var/run/mongodb/mongodb.pid'
+        }
ps: operatingsystemrelease, '23'  or 22 or 21 or other

Q3:
 packstack get python-eventle error
A3:
删除最新版本， pip uninstall eventlet

再重新安装0.15版本解决，用yum自带的吧yum reinstall python-eventle

Q4:
ERROR : Error appeared during Puppet run: x.x.x.x_keystone.pp
Error: /Stage[main]/Neutron::Keystone::Auth/Keystone_user[neutron]:
Could not evaluate: Execution of '/usr/bin/keystone --os-auth-url http://127.0.0.1:35357/v2.0/
token-get' returned 1: The request you have made requires authentication.
A4:
$ mysql
mysql> use keystone;
mysql> delete from token;
mysql> delete from user;

Q5:
ERROR : Error appeared during Puppet run: x.x.x.x_provision_demo.pp
Error: Failed to apply catalog: Can't retrieve net-show because Neutron or Keystone API is not available.

Unable to find network with name 'from gi.repository import GnomeKeyring'". Retrying for 5 sec.
Notice: Puppet::Type::Neutron_network::ProviderNeutron: Unable to complete neutron request due to non-fatal error: "Execution of '/usr/bin/neutron net-show --format=shell from gi.repository import GnomeKeyring' returned 1: /usr/lib/python2.7/site-packages/keyring/backends/Gnome.py:6: PyGIWarning: GnomeKeyring was imported without specifying a version first. Use gi.require_version('GnomeKeyring', '1.0') before import to ensure that the right version gets loaded.
  from gi.repository import GnomeKeyring
Unable to find network with name 'from gi.repository import GnomeKeyring'". Retrying for 1 sec.
Error: Failed to apply catalog: Can't retrieve net-show because Neutron or Keystone API is not available.

A5:
** You can "fix" (?) this problem by modifying the top of /usr/lib/python2.7/site-packages/keyring/backends/Gnome.py, replacing this:

    try:
        from gi import Repository
        if Repository.get_default().enumerate_versions('GnomeKeyring'):
            from gi.repository import GnomeKeyring
    except ImportError:
        pass

With this:

    try:
        from gi import Repository, require_version
        if Repository.get_default().enumerate_versions('GnomeKeyring'):
            require_version('GnomeKeyring', '1.0')
            from gi.repository import GnomeKeyring
    except ImportError:
        pass

NOVA Client install
------------------------

$ yum install openstack-nova-compute sysfsutils

$ egrep -c '(vmx|svm)' /proc/cpuinfo

If this command returns a value of one or greater, your compute node supports hardware acceleration which typically requires no additional configuration.
If this command returns a value of zero, your compute node does not support hardware acceleration and you must configure libvirt to use QEMU instead of KVM.

    Edit the [libvirt] section in the /etc/nova/nova.conf file as follows:
    [libvirt]
    virt_type = qemu

$ service openstack-nova-compute start
$ service messagebus start
$ service libvirtd start

$ chkconfig openstack-nova-compute on
$ chkconfig libvirtd on
or
$ systemctl enable libvirtd.service openstack-nova-compute.service
$ systemctl start libvirtd.service openstack-nova-compute.service

== On server side check ==
nova service-list

nova image-list