d74a25a7e7
In the past few months, _most_ StarlingX services have moved from static IP addressing to FQDN resolution, in support of the management network reconfig feature. While doing DC scalability testing, it was found that a transient domain resolution (controller.internal) issue was found after adding approximately 250 subclouds to the system and involved the rabbitmq/RPC subsystem. The error message returned was similar to: "OSError: failed to resolve broker hostname" The rabbitmq/amqp library is calling a _connect() function, which in turn calls the python socket getaddrinfo() Multiple attemps were made to reproduce the scenario in a non-scaled lab by stressing the getaddrinfo(), getting dnsmasq up to ~40 CPU usage, but the same error was not returned. Testing was done on the DC scale lab by manually changing the rabbit and DB config files and this confirmed that using the static floating IP (avoiding domain name resolution all-together resolved the issue) It was decided to revert the FQDN aspect of the dcmanager and dcorch modules for now, as the management network reconfiguration feature would not even apply to an AIO-DX system controller at this time. This may be re-evaluated in the future at which point a deeper dive into the rabbit/RPC usage should be considered. Testing: - Install an AIO-DX system controller and install a subcloud. Ensure the subcloud is managed and online. - Ensure the dcmanager.conf and dcorch.conf commands use an IP address in their transport_url and database connection parameters. Depends-On: https://review.opendev.org/c/starlingx/config/+/932013 Story: 2010722 Task: 48447 Change-Id: Icd067441dd08321936eb03498ff65241fac0010e
stx-puppet
The starlingx/stx-puppet repository handles the Puppet service1.
The Puppet service runs during bootstrap, and at every reboot, to provide a consistent configuration across the StarlingX system nodes.
This repository is not intended to be developed standalone, but rather as part of the StarlingX Source System, which is defined by the StarlingX manifest2.