![Ben Nemec](/assets/img/avatar_default.png)
Now that we support a wider variety of virtual environments, it's quite likely that developers and testers will need to create an undercloud.conf for them as well. Since it won't hurt to create undercloud.conf even when using all the defaults, let's just make it a non-optional step. Change-Id: I6c12391dd3e66bd1fbc706f2d936aab543376388
4.0 KiB
Installing the Undercloud
Log in to your machine (baremetal or VM) where you want to install the undercloud as a non-root user (such as the stack user):
ssh <non-root-user>@<undercloud-machine>
Note
If you don't have a non-root user created yet, log in as root and create one with following commands:
sudo useradd stack sudo passwd stack # specify a password
echo "stack ALL=(root) NOPASSWD:ALL" | sudo tee -a /etc/sudoers.d/stack sudo chmod 0440 /etc/sudoers.d/stack
su - stack
Note
The undercloud is intended to work correctly with SELinux enforcing, and cannot be installed to a system with SELinux disabled. If SELinux enforcement must be turned off for some reason, it should instead be set to permissive.
Note
vlan tagged interfaces must follow the if_name.vlan_id convention, like for example: eth0.vlan100 or bond0.vlan120.
Baremetal
Ensure that there is a FQDN hostname set and that the $HOSTNAME environment variable matches that value.
Use
hostnamectl
to set a hostname if needed:sudo hostnamectl set-hostname myhost.mydomain sudo hostnamectl set-hostname --transient myhost.mydomain
An entry for the system's FQDN hostname is also needed in /etc/hosts. For example, if the system is named myhost.mydomain, /etc/hosts should have an entry like:
127.0.0.1 myhost.mydomain myhost
Enable needed repositories:
RHEL
Enable optional repo:
sudo yum install -y yum-utils sudo yum-config-manager --enable rhelosp-rhel-7-server-opt
Install the yum-plugin-priorities package so that the Delorean repository takes precedence over the main RDO repositories:
sudo yum -y install yum-plugin-priorities
Install the TripleO CLI, which will pull in all other necessary packages as dependencies:
sudo yum install -y python-tripleoclient
Copy in the sample configuration file and edit it to reflect your environment:
cp /usr/share/instack-undercloud/undercloud.conf.sample ~/undercloud.conf
Run the command to install the undercloud:
Source
Git checkouts of the puppet modules can be used instead of packages. Export the following environment variable:
export DIB_INSTALLTYPE_puppet_modules=source
It is also possible to use this functionality to use an in-progress review as part of the undercloud install. See
../developer/in_progress_review
for details.SSL
To deploy an undercloud with SSL, see
../advanced_deployment/ssl
.Validations
../validations/validations
will be installed and configured during undercloud installation. You can setenable_validations = false
inundercloud.conf
to prevent that.Install the undercloud:
openstack undercloud install
Once the install has completed, you should take note of the files
stackrc
and undercloud-passwords.conf
. You can
source stackrc
to interact with the undercloud via the
OpenStack command-line client. undercloud-passwords.conf
contains the passwords used for each service in the undercloud. These
passwords will be automatically reused if the undercloud is reinstalled
on the same system, so it is not necessary to copy them to
undercloud.conf
.
Note
Any passwords set in undercloud.conf
will take
precedence over the ones in undercloud-passwords.conf
.
Note
openstack undercloud install
can be rerun to reapply
changes from undercloud.conf to the undercloud. Note that this should
not be done if an overcloud has already been deployed
or is in progress.