1. Abstract

This document describes how to install the Fraser release of OPNFV when using Fuel as a deployment tool, covering its usage, limitations, dependencies and required system resources. This is an unified documentation for both x86_64 and aarch64 architectures. All information is common for both architectures except when explicitly stated.

2. Introduction

This document provides guidelines on how to install and configure the Fraser release of OPNFV when using Fuel as a deployment tool, including required software and hardware configurations.

Although the available installation options provide a high degree of freedom in how the system is set up, including architecture, services and features, etc., said permutations may not provide an OPNFV compliant reference architecture. This document provides a step-by-step guide that results in an OPNFV Fraser compliant deployment.

The audience of this document is assumed to have good knowledge of networking and Unix/Linux administration.

3. Preface

Before starting the installation of the Fraser release of OPNFV, using Fuel as a deployment tool, some planning must be done.

3.1. Preparations

Prior to installation, a number of deployment specific parameters must be collected, those are:

  1. Provider sub-net and gateway information
  2. Provider VLAN information
  3. Provider DNS addresses
  4. Provider NTP addresses
  5. Network overlay you plan to deploy (VLAN, VXLAN, FLAT)
  6. How many nodes and what roles you want to deploy (Controllers, Storage, Computes)
  7. Monitoring options you want to deploy (Ceilometer, Syslog, etc.).
  8. Other options not covered in the document are available in the links above

This information will be needed for the configuration procedures provided in this document.

4. Hardware Requirements for Virtual Deploys

The following minimum hardware requirements must be met for the virtual installation of Fraser using Fuel:

HW Aspect Requirement
1 Jumpserver A physical node (also called Foundation Node) that will host a Salt Master VM and each of the VM nodes in the virtual deploy
CPU Minimum 1 socket with Virtualization support
RAM Minimum 32GB/server (Depending on VNF work load)
Disk Minimum 100GB (SSD or SCSI (15krpm) highly recommended)

5. Hardware Requirements for Baremetal Deploys

The following minimum hardware requirements must be met for the baremetal installation of Fraser using Fuel:

HW Aspect Requirement
# of nodes

Minimum 5

  • 3 KVM servers which will run all the controller services
  • 2 Compute nodes
CPU Minimum 1 socket with Virtualization support
RAM Minimum 16GB/server (Depending on VNF work load)
Disk Minimum 256GB 10kRPM spinning disks
Networks

4 VLANs (PUBLIC, MGMT, STORAGE, PRIVATE) - can be a mix of tagged/native

1 Un-Tagged VLAN for PXE Boot - ADMIN Network

Note: These can be allocated to a single NIC - or spread out over multiple NICs

1 Jumpserver A physical node (also called Foundation Node) that hosts the Salt Master and MaaS VMs
Power management All targets need to have power management tools that allow rebooting the hardware and setting the boot order (e.g. IPMI)

NOTE: All nodes including the Jumpserver must have the same architecture (either x86_64 or aarch64).

NOTE: For aarch64 deployments an UEFI compatible firmware with PXE support is needed (e.g. EDK2).

6. Help with Hardware Requirements

Calculate hardware requirements:

For information on compatible hardware types available for use, please see Fuel OpenStack Hardware Compatibility List

When choosing the hardware on which you will deploy your OpenStack environment, you should think about:

  • CPU – Consider the number of virtual machines that you plan to deploy in your cloud environment and the CPUs per virtual machine.
  • Memory – Depends on the amount of RAM assigned per virtual machine and the controller node.
  • Storage – Depends on the local drive space per virtual machine, remote volumes that can be attached to a virtual machine, and object storage.
  • Networking – Depends on the Choose Network Topology, the network bandwidth per virtual machine, and network storage.

7. Top of the Rack (TOR) Configuration Requirements

The switching infrastructure provides connectivity for the OPNFV infrastructure operations, tenant networks (East/West) and provider connectivity (North/South); it also provides needed connectivity for the Storage Area Network (SAN). To avoid traffic congestion, it is strongly suggested that three physically separated networks are used, that is: 1 physical network for administration and control, one physical network for tenant private and public networks, and one physical network for SAN. The switching connectivity can (but does not need to) be fully redundant, in such case it comprises a redundant 10GE switch pair for each of the three physically separated networks.

The physical TOR switches are not automatically configured from the Fuel 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.

Manual configuration of the Fraser hardware platform should be carried out according to the OPNFV Pharos Specification.

8. OPNFV Software Prerequisites

The Jumpserver node should be pre-provisioned with an operating system, according to the Pharos specification. Relevant network bridges should also be pre-configured (e.g. admin_br, mgmt_br, public_br).

  • The admin bridge (admin_br) is mandatory for the baremetal nodes PXE booting during Fuel installation.
  • The management bridge (mgmt_br) is required for testing suites (e.g. functest/yardstick), it is suggested to pre-configure it for debugging purposes.
  • The public bridge (public_br) is also nice to have for debugging purposes, but not mandatory.

The user running the deploy script on the Jumpserver should belong to “sudo” and “libvirt” groups, and have passwordless sudo access.

The following example adds the groups to the user “jenkins”

$ sudo usermod -aG sudo jenkins
$ sudo usermod -aG libvirt jenkins
$ reboot
$ groups
jenkins sudo libvirt

$ sudo visudo
...
%jenkins ALL=(ALL) NOPASSWD:ALL

The folder containing the temporary deploy artifacts (/home/jenkins/tmpdir in the examples below) needs to have mask 777 in order for libvirt to be able to use them.

$ mkdir -p -m 777 /home/jenkins/tmpdir

For an AArch64 Jumpserver, the “libvirt” minimum required version is 3.x, 3.5 or newer highly recommended. While not mandatory, upgrading the kernel and QEMU on the Jumpserver is also highly recommended (especially on AArch64 Jumpservers).

For CentOS 7.4 (AArch64), distro provided packages are already new enough. For Ubuntu 16.04 (arm64), distro packages are too old and 3rd party repositories should be used. For convenience, Armband provides a DEB repository holding all the required packages.

To add and enable the Armband repository on an Ubuntu 16.04 system, create a new sources list file /apt/sources.list.d/armband.list with the following contents:

$ cat /etc/apt/sources.list.d/armband.list
//for OpenStack Pike release
deb http://linux.enea.com/mcp-repos/pike/xenial pike-armband main

$ apt-get update

Fuel@OPNFV has been validated by CI using the following distributions installed on the Jumpserver:

  • CentOS 7 (recommended by Pharos specification);
  • Ubuntu Xenial;

NOTE: The install script expects ‘libvirt’ to be already running on the Jumpserver. In case libvirt packages are missing, the script will install them; but depending on the OS distribution, the user might have to start the ‘libvirtd’ service manually, then run the deploy script again. Therefore, it is recommended to install libvirt-bin explicitly on the Jumpserver before the deployment.

NOTE: It is also recommended to install the newer kernel on the Jumpserver before the deployment.

NOTE: The install script will automatically install the rest of required distro package dependencies on the Jumpserver, unless explicitly asked not to (via -P deploy arg). This includes Python, QEMU, libvirt etc.

NOTE: The install script will alter Jumpserver sysconf and disable net.bridge.bridge-nf-call.

$ apt-get install linux-image-generic-hwe-16.04-edge libvirt-bin

9. OPNFV Software Installation and Deployment

This section describes the process of installing all the components needed to deploy the full OPNFV reference platform stack across a server cluster.

The installation is done with Mirantis Cloud Platform (MCP), which is based on a reclass model. This model provides the formula inputs to Salt, to make the deploy automatic based on deployment scenario. The reclass model covers:

  • Infrastructure node definition: Salt Master node (cfg01) and MaaS node (mas01)
  • OpenStack node definition: Controller nodes (ctl01, ctl02, ctl03) and Compute nodes (cmp001, cmp002)
  • Infrastructure components to install (software packages, services etc.)
  • OpenStack components and services (rabbitmq, galera etc.), as well as all configuration for them

9.1. Automatic Installation of a Virtual POD

For virtual deploys all the targets are VMs on the Jumpserver. The deploy script will:

  • Create a Salt Master VM on the Jumpserver which will drive the installation

  • Create the bridges for networking with virsh (only if a real bridge does not already exist for a given network)

  • Install OpenStack on the targets
    • Leverage Salt to install & configure OpenStack services
Fuel@OPNFV Virtual POD Network Layout Examples

Fuel@OPNFV Virtual POD Network Layout Examples

cfg01 Salt Master VM
ctl01 Controller VM
cmp01/cmp02 Compute VMs
gtw01 Gateway VM with neutron services (dhcp agent, L3 agent, metadata, etc)
odl01 VM on which ODL runs (for scenarios deployed with ODL)
In this figure there are examples of two virtual deploys:
  • Jumphost 1 has only virsh bridges, created by the deploy script
  • Jumphost 2 has a mix of Linux and virsh bridges; When Linux bridge exists for a specified network, the deploy script will skip creating a virsh bridge for it

Note: A virtual network “mcpcontrol” is always created for initial connection of the VMs on Jumphost.

9.2. Automatic Installation of a Baremetal POD

The baremetal installation process can be done by editing the information about hardware and environment in the reclass files, or by using the files Pod Descriptor File (PDF) and Installer Descriptor File (IDF) as described in the OPNFV Pharos project. These files contain all the information about the hardware and network of the deployment that will be fed to the reclass model during deployment.

The installation is done automatically with the deploy script, which will:

  • Create a Salt Master VM on the Jumpserver which will drive the installation

  • Create a MaaS Node VM on the Jumpserver which will provision the targets

  • Install OpenStack on the targets
    • Leverage MaaS to provision baremetal nodes with the operating system
    • Leverage Salt to configure the operating system on the baremetal nodes
    • Leverage Salt to install & configure OpenStack services
Fuel@OPNFV Baremetal POD Network Layout Example

Fuel@OPNFV Baremetal POD Network Layout Example

cfg01 Salt Master VM
mas01 MaaS Node VM
kvm01..03 Baremetals which hold the VMs with controller functions
cmp001/cmp002 Baremetal compute nodes
prx01/prx02 Proxy VMs for Nginx
msg01..03 RabbitMQ Service VMs
dbs01..03 MySQL service VMs
mdb01..03 Telemetry VMs
odl01 VM on which ODL runs (for scenarios deployed with ODL)
Tenant VM VM running in the cloud

In the baremetal deploy all bridges but “mcpcontrol” are Linux bridges. For the Jumpserver, it is required to pre-configure at least the admin_br bridge for the PXE/Admin. For the targets, the bridges are created by the deploy script.

Note: A virtual network “mcpcontrol” is always created for initial connection of the VMs on Jumphost.

9.3. Steps to Start the Automatic Deploy

These steps are common both for virtual and baremetal deploys.

  1. Clone the Fuel code from gerrit

    For x86_64

    $ git clone https://git.opnfv.org/fuel
    $ cd fuel
    

    For aarch64

    $ git clone https://git.opnfv.org/armband
    $ cd armband
    
  2. Checkout the Fraser release

    $ git checkout opnfv-6.2.1
    
  3. Start the deploy script

    Besides the basic options, there are other recommended deploy arguments:

    • use -D option to enable the debug info
    • use -S option to point to a tmp dir where the disk images are saved. The images will be re-used between deploys
    • use |& tee to save the deploy log to a file
    $ ci/deploy.sh -l <lab_name> \
                   -p <pod_name> \
                   -b <URI to configuration repo containing the PDF file> \
                   -s <scenario> \
                   -D \
                   -S <Storage directory for disk images> |& tee deploy.log
    

9.3.1. Examples

  1. Virtual deploy

    To start a virtual deployment, it is required to have the virtual keyword while specifying the pod name to the installer script.

    It will create the required bridges and networks, configure Salt Master and install OpenStack.

    $ ci/deploy.sh -l ericsson \
                   -p virtual3 \
                   -s os-nosdn-nofeature-noha \
                   -D \
                   -S /home/jenkins/tmpdir |& tee deploy.log
    

    Once the deployment is complete, the OpenStack Dashboard, Horizon, is available at http://<controller VIP>:8078 The administrator credentials are admin / opnfv_secret.

  2. Baremetal deploy

    A x86 deploy on pod2 from Linux Foundation lab

    $ ci/deploy.sh -l lf \
                   -p pod2 \
                   -s os-nosdn-nofeature-ha \
                   -D \
                   -S /home/jenkins/tmpdir |& tee deploy.log
    
    Fuel@OPNFV LF POD2 Network Layout

    Fuel@OPNFV LF POD2 Network Layout

    An aarch64 deploy on pod5 from Arm lab

    $ ci/deploy.sh -l arm \
                   -p pod5 \
                   -s os-nosdn-nofeature-ha \
                   -D \
                   -S /home/jenkins/tmpdir |& tee deploy.log
    
    Fuel@OPNFV ARM POD5 Network Layout

    Fuel@OPNFV ARM POD5 Network Layout

    Once the deployment is complete, the SaltStack Deployment Documentation is available at http://<proxy public VIP>:8090

NOTE: The deployment uses the OPNFV Pharos project as input (PDF and IDF files) for hardware and network configuration of all current OPNFV PODs. When deploying a new POD, one can pass the -b flag to the deploy script to override the path for the labconfig directory structure containing the PDF and IDF.

$ ci/deploy.sh -b file://<absolute_path_to_labconfig> \
               -l <lab_name> \
               -p <pod_name> \
               -s <scenario> \
               -D \
               -S <tmp_folder> |& tee deploy.log
  • <absolute_path_to_labconfig> is the absolute path to a local directory, populated similar to Pharos, i.e. PDF/IDF reside in <absolute_path_to_labconfig>/labs/<lab_name>
  • <lab_name> is the same as the directory in the path above
  • <pod_name> is the name used for the PDF (<pod_name>.yaml) and IDF (idf-<pod_name>.yaml) files

9.4. Pod and Installer Descriptor Files

Descriptor files provide the installer with an abstraction of the target pod with all its hardware characteristics and required parameters. This information is split into two different files: Pod Descriptor File (PDF) and Installer Descriptor File (IDF).

The Pod Descriptor File is a hardware description of the pod infrastructure. The information is modeled under a yaml structure. A reference file with the expected yaml structure is available at mcp/config/labs/local/pod1.yaml

The hardware description is arranged into a main “jumphost” node and a “nodes” set for all target boards. For each node the following characteristics are defined:

  • Node parameters including CPU features and total memory.
  • A list of available disks.
  • Remote management parameters.
  • Network interfaces list including mac address, speed, advanced features and name.

Note: The fixed IPs are ignored by the MCP installer script and it will instead assign based on the network ranges defined in IDF.

The Installer Descriptor File extends the PDF with pod related parameters required by the installer. This information may differ per each installer type and it is not considered part of the pod infrastructure. The IDF file must be named after the PDF with the prefix “idf-”. A reference file with the expected structure is available at mcp/config/labs/local/idf-pod1.yaml

The file follows a yaml structure and two sections “net_config” and “fuel” are expected.

The “net_config” section describes all the internal and provider networks assigned to the pod. Each used network is expected to have a vlan tag, IP subnet and attached interface on the boards. Untagged vlans shall be defined as “native”.

The “fuel” section defines several sub-sections required by the Fuel installer:

  • jumphost: List of bridge names for each network on the Jumpserver.
  • network: List of device name and bus address info of all the target nodes. The order must be aligned with the order defined in PDF file. Fuel installer relies on the IDF model to setup all node NICs by defining the expected device name and bus address.
  • maas: Defines the target nodes commission timeout and deploy timeout. (optional)
  • reclass: Defines compute parameter tuning, including huge pages, cpu pinning and other DPDK settings. (optional)

The following parameters can be defined in the IDF files under “reclass”. Those value will overwrite the default configuration values in Fuel repository:

  • nova_cpu_pinning: List of CPU cores nova will be pinned to. Currently disabled.
  • compute_hugepages_size: Size of each persistent huge pages. Usual values are ‘2M’ and ‘1G’.
  • compute_hugepages_count: Total number of persistent huge pages.
  • compute_hugepages_mount: Mount point to use for huge pages.
  • compute_kernel_isolcpu: List of certain CPU cores that are isolated from Linux scheduler.
  • compute_dpdk_driver: Kernel module to provide userspace I/O support.
  • compute_ovs_pmd_cpu_mask: Hexadecimal mask of CPUs to run DPDK Poll-mode drivers.
  • compute_ovs_dpdk_socket_mem: Set of amount huge pages in MB to be used by OVS-DPDK daemon taken for each NUMA node. Set size is equal to NUMA nodes count, elements are divided by comma.
  • compute_ovs_dpdk_lcore_mask: Hexadecimal mask of DPDK lcore parameter used to run DPDK processes.
  • compute_ovs_memory_channels: Number of memory channels to be used.
  • dpdk0_driver: NIC driver to use for physical network interface.
  • dpdk0_n_rxq: Number of RX queues.

The full description of the PDF and IDF file structure are available as yaml schemas. The schemas are defined as a git submodule in Fuel repository. Input files provided to the installer will be validated against the schemas.

  • mcp/scripts/pharos/config/pdf/pod1.schema.yaml
  • mcp/scripts/pharos/config/pdf/idf-pod1.schema.yaml

10. Release Notes

Please refer to the Release Notes article.