Red Hat Summit이 콘텐츠는 선택한 언어로 제공되지 않습니다.
Chapter 11. Upgrading Custom and Community Cartridges
The OpenShift Enterprise runtime contains a system for upgrading custom cartridges on a gear to the latest available version and for applying gear-level changes that affect cartridges.
The
oo-admin-upgrade command on the broker host provides the command line interface for the upgrade system and can upgrade all the gears in an OpenShift Enterprise environment, all the gears on a node, or a single gear. This command queries the OpenShift Enterprise broker to determine the locations of the gears to migrate and uses MCollective calls to trigger the upgrade for a gear.
Upgrade Process Overview
- Load the gear upgrade extension, if configured.
- Inspect the gear state.
- Run the gear extension's
pre-upgradescript, if it exists. - Compute the upgrade itinerary for the gear.
- If the itinerary contains an incompatible upgrade, stop the gear.
- Upgrade the cartridges in the gear according to the itinerary.
- Run the gear extension's
post-upgradescript, if it exists. - If the itinerary contains an incompatible upgrade, restart and validate the gear.
- Clean up after the upgrade by deleting pre-upgrade state and upgrade metadata.
11.1. Upgrade Itinerary
링크 복사링크가 클립보드에 복사되었습니다!
The upgrade process must be re-entrant; if it fails or times out, a subsequent upgrade operation must pick up where the last one left off. The upgrade itinerary stores information about which cartridges in a gear to upgrade and which type of upgrade to perform.
There are two types of cartridge upgrade processes: compatible and incompatible. The
Compatible-Versions element in a cartridge's $cartridge_name/metadata/manifest.yml file determines whether the new version is compatible with a previous version. The main difference between the compatible and incompatible upgrade processes is that an incompatible cartridge's gear stops during an upgrade, while a compatible cartridge's gear continues to run.
Upgrade Itinerary Configuration
- Read in the current
IDENTof the cartridge. - Determine the name and software version of the cartridge in the cartridge repository; this provides the manifest for the latest version of the cartridge. If a manifest does not exist in the cartridge repository or does not include the software version, skip the cartridge.
- If the latest manifest is for the same cartridge version as the version currently installed on the gear, skip the cartridge unless the
ignore_cartridge_versionparameter is set. If theignore_cartridge_versionparameter is set, record an incompatible upgrade for the cartridge in the itinerary. - If the latest manifest includes the current cartridge version in the
Compatible-Versionselement, record a compatible upgrade for the cartridge in the itinerary. Otherwise, record an incompatible upgrade for the cartridge in the itinerary.
'%20d='M201.5%20305.5c-13.8%200-24.9-11.1-24.9-24.6%200-13.8%2011.1-24.9%2024.9-24.9%2013.6%200%2024.6%2011.1%2024.6%2024.9%200%2013.6-11.1%2024.6-24.6%2024.6zM504%20256c0%20137-111%20248-248%20248S8%20393%208%20256%20119%208%20256%208s248%20111%20248%20248zm-132.3-41.2c-9.4%200-17.7%203.9-23.8%2010-22.4-15.5-52.6-25.5-86.1-26.6l17.4-78.3%2055.4%2012.5c0%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.3%2024.9-24.9s-11.1-24.9-24.9-24.9c-9.7%200-18%205.8-22.1%2013.8l-61.2-13.6c-3-.8-6.1%201.4-6.9%204.4l-19.1%2086.4c-33.2%201.4-63.1%2011.3-85.5%2026.8-6.1-6.4-14.7-10.2-24.1-10.2-34.9%200-46.3%2046.9-14.4%2062.8-1.1%205-1.7%2010.2-1.7%2015.5%200%2052.6%2059.2%2095.2%20132%2095.2%2073.1%200%20132.3-42.6%20132.3-95.2%200-5.3-.6-10.8-1.9-15.8%2031.3-16%2019.8-62.5-14.9-62.5zM302.8%20331c-18.2%2018.2-76.1%2017.9-93.6%200-2.2-2.2-6.1-2.2-8.3%200-2.5%202.5-2.5%206.4%200%208.6%2022.8%2022.8%2087.3%2022.8%20110.2%200%202.5-2.2%202.5-6.1%200-8.6-2.2-2.2-6.1-2.2-8.3%200zm7.7-75c-13.6%200-24.6%2011.1-24.6%2024.9%200%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.1%2024.9-24.6%200-13.8-11-24.9-24.9-24.9z'/%3e%3c/svg%3e){kind=small}