Overview

Prerequisites for Openstack

• 140+ GB RAM by combining all computes and around 60+ CPU cores 
• Keystone v2 authentication is must
• Capable of creating 100GB cinder volume in Openstack cloud

Installing ONAP in vanilla OpenStack from command line is very similar to installing ONAP in Rackspace (see Tutorial: Configuring and Starting Up the Base ONAP Stack). The Heat templates that install ONAP in Rackspace and vanilla OpenStack are similar too. The main difference is the way resource-intensive VMs are defined. Unlike OpenStack, Rackspace requires to explicitly create a local disk for memory- or CPU-intensive VMs.

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• onap_openstack.yaml / onap_openstack.env: ONAP VMs created out of this template have one vNIC. The vNIC has a private IP towards the Private Management Network and a floating IP. The floating IPs addresses are assigned during ONAP installation by OpenStack, based on floating IP availability. This template can be used when users do not know the set of floating IPs assigned to them . Note that this template should be used in OpenStack Kilo and older releases, because those releases do not support fixed floating IP association via Heat template. CURRENTLY, THIS TEMPLATE DOES NOT SUPPORT DCAE DATA COLLECTION AND ANALYTICS PLATFORM INSTALLATION.or do not have OpenStack admin rights. 
• onap_openstack_float.yaml / onap_openstack_float.env: ONAP VMs created out of this template have one vNIC. The vNIC has a private IP towards the Private Management Network and a floating IP. The floating IPs IP addresses are specified ahead of time in the environment file. This template can be used when users always want to assign the same floating IP to an ONAP VM in different ONAP installation. Note that fixed NOTES: 1) Running this template requires OpenStack admin rights; 2) Fixed floating IP assignment via Heat template is not supported in OpenStack Kilo and older releases. THIS TEMPLATE SUPPORTS
• onap_openstack_nofloat.yaml / onap_openstack_nofloat.env: ONAP VMs created out of this template have two vNICs: one has a private IP towards the Private Management Network and the other one has a public IP address towards the external network. From a network resource perspective, this template is similar to the Heat template used to build ONAP in Rackspace.
  

ALL TEMPLATES ABOVE SUPPORT DCAE DATA COLLECTION AND ANALYTICS PLATFORM INSTALLATION

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. In onap_openstack.yaml / onap_openstack.env and onap_openstack_float.yaml / onap_openstack_float.env you are required to manually allocate five (5) Floating IP addresses to your OpenStack project. To allocate those addresses, from the OpenStack horizon dashboard, click on Compute -> Access & Security -> Floating IPs. Then click “Allocate IP To Project” five times. OpenStack will assign five IPs to

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your project. Then, please assign

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the allocated Floating IPs to the following VMs defined in the Heat environment file:

dcae_coll_float_ip

dcae_hdp1_float_ip

dcae_hdp2_float_ip

dcae_hdp3_float_ip

dcae_db_float_ip

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At run time, the DCAE controller will fetch those IPs from the underlying OpenStack platform and assign them to the VMs defined above. The "dcae_base_environment" parameter is set to 1-NIC-FLOATING-IPS.

For onap_openstack_nofloat.yaml / onap_openstack_nofloat.env

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 no floating IP address allocation is required. OpenStack will assign public addresses to the DCAE VMs based on availability. In onap_openstack_nofloat.env, the "dcae_base_environment" parameter is set to 2-NIC.

Note that the DCAE controller handles only one set of IP addresses, either floating IPs or private IPs. As such, in the onap_openstack.yaml and onap_openstack_float.yaml templates, which use floating IPs, the private IP addresses assigned to the five additional VMs that DCAE creates off the Heat template will not be considered. OpenStack will assign them five private IPs in the Private Management Network based on availability. More details about DCAE setup available here: DCAE Controller Development Guide.

The figure below shows the network setup created with onap_openstack_float.yaml / onap_openstack_float.env. As described above, ONAP VMs have a private IP address in the ONAP Private Management Network space and use floating IP addresses for remote access and connection to Gerrit and Nexus repositories. A router that connects the ONAP Private Management Network to the external network is also created.

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$ openstack flavor list | grep onap
| 123 | onap_small | 4192 | 0 | 0 | 1 | True |
| 124 | onap_medium | 8192 | 0 | 0 | 1 | True |
| 125 | onap_large | 8192 | 0 | 0 | 2 | True |
| 126 | onap_xlarge | 16192 | 0 | 0 | 2 | True |

List floating ips

$ openstack floating ip list
+--------------------------------------+---------------------+------------------+------+--------------------------------------+----------------------------------+
| ID | Floating IP Address | Fixed IP Address | Port | Floating Network | Project |
+--------------------------------------+---------------------+------------------+------+--------------------------------------+----------------------------------+
| 03fffffff0-07f5-4172-a71d-fb1394e1f7b4 | 44.253.254.255 | None | None | fffffff-59f0-415c-880d-d05ec86ff8f0 | fffffc6575bda4525b49433a38e697e22 | etc...

Public network

$ openstack network list | grep public
| b4f41afd-1f08-47f8-851b-ca536bffffff | public | d4902035-2d4c-40cc-8a05-e916401fffff |

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dcae_base_environment specifies the DCAE networking configuration and shouldn't be modified (see above for a description of the DCAE network configuration, i.e. 1-NIC-FLOATING-IPS vs. 2-NIC). openstack_region must reflect the OpenStack OS_REGION_NAME environment variable (please refer to Tutorial: Configuring and Starting Up the Base ONAP Stack for cloud environment variables), while dcae_zone and dcae_state can contain any meaningful location information that helps the user distinguish between different DCAE deployments. For example, if an instance of DCAE is deployed in a data center in New York City, the two parameters can assume the following values:

• dcae_zone: nyc01
• dcae_state: ny

How to use both v2 and v3 Openstack Keystone API

As some ONAP components still currently use v2 Keystone API you should have both, v2 and v3 configured in your environment. That means to have endpoints url without any version at the end.

If you have already installed keystone identity component and created endpoints, you can modify them directly in Maria DB. To do this, run the following commands in red (id should refer to the 3 endpoints, internal, public and admin you have created):

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