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Installation High-Level Overview - Bare Metal Deployment
========================================================
The setup presumes that you have 6 bare metal servers and have already setup network
connectivity on at least 2 interfaces for all servers via a TOR switch or other
network implementation.
The physical TOR switches are **not** automatically configured from the OPNFV reference
platform. All the networks involved in the OPNFV infrastructure as well as the provider
networks and the private tenant VLANs needs to be manually configured.
The Jumphost can be installed using the bootable ISO or by other means including the
(``opnfv-apex``) RPM and virtualization capabilities. The Jumphost should then be
configured with an IP gateway on its admin or public interface and configured with a
working DNS server. The Jumphost should also have routable access to the lights out network.
``opnfv-deploy`` is then executed in order to deploy the Instack VM. ``opnfv-deploy`` uses
three configuration files in order to know how to install and provision the OPNFV target system.
The information gathered under section `Execution Requirements (Bare Metal Only)`_ is put
into the YAML file (``/etc/opnfv-apex/inventory.yaml``) configuration file. Deployment
options are put into the YAML file (``/etc/opnfv-apex/deploy_settings.yaml``). Networking
definitions gathered under section `Network Requirements`_ are put into the YAML file
(``/etc/opnfv-apex/network_settings.yaml``). ``opnfv-deploy`` will boot the Instack VM
and load the target deployment configuration into the provisioning toolchain. This includes
MAC address, IPMI, Networking Environment and OPNFV deployment options.
Once configuration is loaded and Instack is configured it will then reboot the nodes via IPMI.
The nodes should already be set to PXE boot first off the admin interface. The nodes will
first PXE off of the Instack PXE server and go through a discovery/introspection process.
Introspection boots off of custom introspection PXE images. These images are designed to look
at the properties of the hardware that is booting off of them and report the properties of
it back to the Instack node.
After introspection Instack will execute a Heat Stack Deployment to being node provisioning
and configuration. The nodes will reboot and PXE again off the Instack PXE server to
provision each node using the Glance disk images provided by Instack. These disk images
include all the necessary packages and configuration for an OPNFV deployment to execute.
Once the node's disk images have been written to disk the nodes will boot off the newly written
disks and execute cloud-init which will execute the final node configuration. This
configuration is largly completed by executing a puppet apply on each node.
Installation High-Level Overview - VM Deployment
================================================
The VM nodes deployment operates almost the same way as the bare metal deployment with a
few differences. ``opnfv-deploy`` still deploys an Instack VM. In addition to the Instack VM
a collection of VMs (3 control nodes + 2 compute for an HA deployment or 1 control node and
1 compute node for a Non-HA Deployment) will be defined for the target OPNFV deployment.
The part of the toolchain that executes IPMI power instructions calls into libvirt instead of
the IPMI interfaces on baremetal servers to operate the power managment. These VMs are then
provisioned with the same disk images and configuration that baremetal would be.
To RDO Manager these nodes look like they have just built and registered the same way as
bare metal nodes, the main difference is the use of a libvirt driver for the power management.
Installation Guide - Bare Metal Deployment
==========================================
**WARNING: Baremetal documentation is not complete. WARNING: The main missing instructions are r elated to bridging
the networking for the undercloud to the physical underlay network for the overcloud to be deployed to.**
This section goes step-by-step on how to correctly install and provision the OPNFV target
system to bare metal nodes.
Install Bare Metal Jumphost
---------------------------
1a. If your Jumphost does not have CentOS 7 already on it, or you would like to do a fresh
install, then download the Apex bootable ISO from OPNFV artifacts <http://artifacts.opnfv.org/>.
1b. If your Jump host already has CentOS 7 with libvirt running on it then install the
opnfv-apex RPM from OPNFV artifacts <http://artifacts.opnfv.org/>.
2a. Boot the ISO off of a USB or other installation media and walk through installing OPNFV CentOS 7.
The ISO comes prepared to be written directly to a USB drive with dd as such:
``dd if=opnfv-apex.iso of=/dev/sdX bs=4M``
Replace /dev/sdX with the device assigned to your usb drive. Then select the USB device as the
boot media on your Jumphost
2b. Install the RDO Release RPM and the opnfv-apex RPM:
``sudo yum install -y https://www.rdoproject.org/repos/rdo-release.rpm opnfv-apex-{version}.rpm``
The RDO Project release repository is needed to install OpenVSwitch, which is a dependency of
opnfv-apex. If you do not have external connectivity to use this repository you need to download
the OpenVSwitch RPM from the RDO Project repositories and install it with the opnfv-apex RPM.
3. After the operating system and the opnfv-apex RPM are installed, login to your Jumphost as root.
4. Configure IP addresses on the interfaces that you have selected as your networks.
5. Configure the IP gateway to the Internet either, preferably on the public interface.
6. Configure your ``/etc/resolv.conf`` to point to a DNS server (8.8.8.8 is provided by Google).
Creating a Node Inventory File
------------------------------
IPMI configuration information gathered in section `Execution Requirements (Bare Metal Only)`_
needs to be added to the ``inventory.yaml`` file.
1. Edit ``/etc/apex-opnfv/inventory.yaml``.
2. The nodes dictionary contains a definition block for each baremetal host that will be deployed.
1 or more compute nodes and 3 controller nodes are required.
(The example file contains blocks for each of these already).
It is optional at this point to add more compute nodes into the node list.
3. Edit the following values for each node:
- ``mac_address``: MAC of the interface that will PXE boot from Instack
- ``ipmi_ip``: IPMI IP Address
- ``ipmi_user``: IPMI username
- ``ipmi_password``: IPMI password
- ``ipmi_type``: Power Management driver to use for the node
- ``cpus``: (Introspected*) CPU cores available
- ``memory``: (Introspected*) Memory available in Mib
- ``disk``: (Introspected*) Disk space available in Gb
- ``arch``: (Introspected*) System architecture
- ``capabilities``: (Optional**) Intended node role (profile:control or profile:compute)
* Introspection looks up the overcloud node's resources and overrides these value. You can
leave default values and Apex will get the correct values when it runs introspection on the nodes.
** If capabilities profile is not specified then Apex will select node's roles in the OPNFV cluster
in a non-deterministic fashion.
Creating the Settings Files
-----------------------------------
Edit the 2 settings files in /etc/opnfv-apex/. These files have comments to help you customize them.
1. deploy_settings.yaml
This file includes basic configuration options deployment.
2. network_settings.yaml
This file provides Apex with the networking information that satisfies the
prerequisite `Network Requirements`_. These are specific to your environment.
Running ``opnfv-deploy``
------------------------
You are now ready to deploy OPNFV using Apex!
``opnfv-deploy`` will use the inventory and settings files to deploy OPNFV.
Follow the steps below to execute:
1. Execute opnfv-deploy
``sudo opnfv-deploy [ --flat | -n network_setttings.yaml ] -i instackenv.json -d deploy_settings.yaml``
If you need more information about the options that can be passed to opnfv-deploy use ``opnfv-deploy --help``
--flat will collapse all networks onto a single nic, -n network_settings.yaml allows you to customize your
networking topology.
2. Wait while deployment is executed.
If something goes wrong during this part of the process,
it is most likely a problem with the setup of your network or the information in your configuration files.
You will also notice different outputs in your shell.
3. The message "Overcloud Deployed" will display when When the deployment is complete. Just above this message there
will be a URL that ends in port http://<host>:5000. This url is also the endpoint for the OPNFV Horizon Dashboard
if connected to on port 80.
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