system-config/launch/README
Jeremy Stanley 8de13371f7 Increase example Jenkins slave flavor.
* launch/README: The preferred flavor for a Jenkins slave in
Rackspace nova has RAM 8192, so we can get the same 4 CPU count we
had with Rackspace legacy VMs.

Change-Id: I55563ff966061b5c02fb68b671156d782c2d042d
Reviewed-on: https://review.openstack.org/23658
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: James E. Blair <corvus@inaugust.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins
2013-03-07 03:43:51 +00:00

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Create Server
=============
Note that these instructions assume you're working from this
directory on an updated local clone of the repository, and that
your account is a member of the puppet group for access to the
puppet keys::
sudo adduser YOURUSER puppet
(Remember to log out and back into your shell if you add yourself
to a group.)
To launch a node in the OpenStack CI account (production servers)::
. ~root/ci-launch/openstackci-rs-nova.sh
export FQDN=servername.openstack.org
sudo puppet cert generate $FQDN
./launch-node.py $FQDN
To launch a node in the OpenStack Jenkins account (slave nodes)::
. ~root/ci-launch/openstackjenkins-rs-nova.sh
export FQDN=slavename.slave.openstack.org
export CERT=slavetype.slave.openstack.org
nova image-list
export IMAGE='Ubuntu 12.10 (Quantal Quetzal)'
nova flavor-list
export RAM=8192
sudo puppet cert generate $CERT
./launch-node.py $FQDN --cert $CERT.pem --image "$IMAGE" --ram $RAM
If you are launching a replacement server, you may skip the generate
step and specify the name of an existing puppet cert (as long as the
private key is on this host).
The server name and cert names may be different (as in the Jenkins
slave example), but launch-node.py will assume they are the same
unless specified.
Manually add the hostname to DNS (the launch script does not do so
automatically). Note that this example assumes you've already
exported a relevant FQDN and sourced the appropriate API credentials
above.
Add DNS Records
===============
There are no scripts to automatically handle DNS at the moment due to
a lack of library support for the new Rackspace Cloud DNS (with IPv6).
However, the launch-node script will print the commands needed to be
run to configure DNS for a newly launched server. To see the commands
for an existing server, run:
./dns.py $FQDN
Activate Puppet Agent
=====================
If this is a Jenkins slave, Puppet configuration is applied through
an already installed cron job, so you can ignore this section. If
this is ''not'' a Jenkins slave, you'll want to log into it via SSH
and turn on the Puppet agent so it will start checking into the
master on its own::
sudo sed -i 's/^START=.*/START=yes/' /etc/default/puppet
sudo invoke-rc.d puppet start
You should be able to tell from the Puppet Dashboard when it begins
to check in, which normally happens at 10-minute intervals.