7b09d3e8dc
Many moons ago, we thought that we would implement rolling upgrades using a similar model to nova. This included adding an instance of an IronicObjectIndirectionAPI to the ironic-api service. What it was meant to do was for ironic-api to invoke it if it received an IronicObject that it didn't know what to do with (because it didn't recognize that object's version). That API would have invoked the conductor service, asking it to generate a version of that object which ironic-api would understood. To use this mechanism, the assumption is that the conductor is the gateway to the DB. This mechanism doesn't work for ironic for a few reasons: - ironic API reads (and occasionally) writes directly to the database. We don't want to change it to get access to the DB via the conductor all the time, since for e.g. we don't want to slow down the conductor - Nova's rolling upgrade process is to initially take down all their conductor services (which handles their DB interactions) at the same time, while their other services are still running. Unless ironic changes to have a similar model, we cannot take down all the conductor services at the same time if ironic is to provide services during a rolling upgrade. Thus, this patch removes the unused IronicObjectIndirectionAPI from the ironic-api service. Note that the IronicObjectIndrectionAPI class itself (in ironic/objects/indirection.py) was left, in case things ever change in the future. (And because removing that would involve touching most, if not all, of the files in the objects/ subdirectory.) Change-Id: I1aa264a8619105939968c0b8128b358badf00210 Closes-Bug: #1586320 |
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| api-ref | ||
| devstack | ||
| doc/source | ||
| etc | ||
| ironic | ||
| ironic_tempest_plugin | ||
| playbooks/legacy | ||
| releasenotes | ||
| tools | ||
| zuul.d | ||
| .gitignore | ||
| .gitreview | ||
| .mailmap | ||
| .stestr.conf | ||
| CONTRIBUTING.rst | ||
| LICENSE | ||
| README.rst | ||
| Vagrantfile | ||
| babel.cfg | ||
| bindep.txt | ||
| driver-requirements.txt | ||
| requirements.txt | ||
| setup.cfg | ||
| setup.py | ||
| test-requirements.txt | ||
| tox.ini | ||
| vagrant.yaml | ||
README.rst
Team and repository tags
Ironic
Ironic consists of an API and plug-ins for managing and provisioning physical machines in a security-aware and fault-tolerant manner. It can be used with nova as a hypervisor driver, or standalone service using bifrost. By default, it will use PXE and IPMI to interact with bare metal machines. Ironic also supports vendor-specific plug-ins which may implement additional functionality.
Ironic is distributed under the terms of the Apache License, Version 2.0. The full terms and conditions of this license are detailed in the LICENSE file.
Project resources
- Documentation: https://docs.openstack.org/ironic/latest
- Source: https://git.openstack.org/cgit/openstack/ironic
- Bugs: https://bugs.launchpad.net/ironic
- Wiki: https://wiki.openstack.org/wiki/Ironic
- APIs: https://developer.openstack.org/api-ref/baremetal/index.html
Project status, bugs, and requests for feature enhancements (RFEs) are tracked on Launchpad: https://launchpad.net/ironic
For information on how to contribute to ironic, see https://docs.openstack.org/ironic/latest/contributor