Description of problem: Currently, if otopi sees an event like: @plugin.event( stage=plugin.Stages.STAGE_MISC, after=( 'nonexisting_event', ), ) def _misc(self): it simply ignores this 'nonexisting_event'. It should probably fail. Once we do this, we are likely to find some bugs in real code, so perhaps at first we should fail optionally for some time/versions. This came up recently in ovirt-hosted-engine-setup. It had title events, that were used to show titles to the user during customization, but also to keep a partially-strict order of the questions. But only "setup" flow used them, "upgrade-appliance" did not. And no-one noticed. Then we moved things around so that we always used these tittles, and suddenly started getting failures in buildSequence due to cycles.
Closing old RFEs, please reopen if still needed. Patches are always welcome.
I think it's important. (Also not sure what's so old about this bug - less than half a year old).
otopi currently fails with an error message, if it finds a method that has before=/after= parameters that point to method name where no method has this name. For example: [ ERROR ] "after" parameter of method "otopi.plugins.ovirt_engine_setup.ovirt_engine_dwh.db.vacuum.Plugin._customization" refers to a method name "osetup.db.connection.status", but no method with this name exists [ ERROR ] "after" parameter of method "otopi.plugins.ovirt_engine_setup.ovirt_engine.config.aaa.Plugin._customization" refers to a method name "osetup.db.connection.status", but no method with this name exists [ ERROR ] "after" parameter of method "otopi.plugins.ovirt_engine_setup.ovirt_engine.db.vacuum.Plugin._customization" refers to a method name "osetup.db.connection.status", but no method with this name exists [ ERROR ] "after" parameter of method "otopi.plugins.ovirt_engine_setup.ovirt_engine.fence_kdump_listener.config.Plugin._customization_disable" refers to a method name "osetup.db.connection.status", but no method with this name exists [ ERROR ] "after" parameter of method "otopi.plugins.ovirt_engine_setup.ovirt_engine.fence_kdump_listener.config.Plugin._customization_firewall" refers to a method name "osetup.db.connection.status", but no method with this name exists [ ERROR ] Failed to execute stage 'Environment setup': Found bad "before" or "after" parameters Such errors in existing code where fixed, so under normal circumstances, they should not happen, thus setting doc-text "-". QE: Nothing for you to test in a positive flow, just that normal runs of existing otopi users (engine-setup, host-deploy) finish successfully. If you want to create a negative flow, you can see as an example the test I added to CI: https://gerrit.ovirt.org/102205
Sorry, but this broke engine-cleanup, so disabling by default for now. You can enable by adding to the answer file, or otopi command line: CORE/ignoreMissingBeforeAfter=bool:False The fix to make engine-cleanup work is not that simple. A concrete example: In [1] we fail on engine-cleanup, because both odwhcons.Stages.DB_SCHEMA and oengcommcons.Stages.DB_CONNECTION_AVAILABLE run only in setup, but [1] itself runs also in cleanup (it's in common) and we need to keep it this way (for updating the engine db that dwh is being removed). So a fix is probably to move both from setup to common, but this needs to be verified carefully, in several different flows (engine and dwh on same machine, on separate ones, dwh on a separate machine where engine is also installed but not configured, etc.). So decided to postpone for now. Going to merge the added patches soon, to un-break engine-cleanup, and filed bug 1751164 for tracking this issue. [1] https://github.com/oVirt/ovirt-dwh/blob/master/packaging/setup/plugins/ovirt-engine-common/ovirt-engine-dwh/db/engine_connection.py#L219
Moving to MODIFIED, as all relevant patches merged. Currently we do not notify, because it's unneeded new noise about existing problems. We do log, though. So if you want to verify current bug, you can run engine-cleanup. It will run as usual, but the log file will contain also: 2019-09-18 13:06:41,159+0300 DEBUG otopi.context context.check:738 "before" parameter of method "otopi.plugins.ovirt_engine_common.base.network.firewall_manager_firewalld.Plugin._setup" refers to a method name "osetup.keep.only.valid.firewall.managers", but no method with this name exists 2019-09-18 13:06:41,160+0300 DEBUG otopi.context context.check:738 "before" parameter of method "otopi.plugins.ovirt_engine_common.base.network.firewall_manager_human.Plugin._setup" refers to a method name "osetup.keep.only.valid.firewall.managers", but no method with this name exists 2019-09-18 13:06:41,160+0300 DEBUG otopi.context context.check:738 "before" parameter of method "otopi.plugins.ovirt_engine_common.base.network.firewall_manager_iptables.Plugin._setup" refers to a method name "osetup.keep.only.valid.firewall.managers", but no method with this name exists 2019-09-18 13:06:41,160+0300 DEBUG otopi.context context.check:738 "before" parameter of method "otopi.plugins.ovirt_engine_common.base.network.hostname.Plugin._customization" refers to a method name "osetup.dialog.titles.network.end", but no method with this name exists 2019-09-18 13:06:41,161+0300 DEBUG otopi.context context.check:738 "after" parameter of method "otopi.plugins.ovirt_engine_common.base.network.hostname.Plugin._customization" refers to a method name "osetup.dialog.titles.network.start", but no method with this name exists 2019-09-18 13:06:41,161+0300 DEBUG otopi.context context.check:738 "before" parameter of method "otopi.plugins.ovirt_engine_common.ovirt_engine.system.he.Plugin._validate" refers to a method name "osetup.memory.check", but no method with this name exists 2019-09-18 13:06:41,161+0300 DEBUG otopi.context context.check:738 "after" parameter of method "otopi.plugins.ovirt_engine_common.ovirt_engine_dwh.db.engine_connection.Plugin._engine_connection" refers to a method name "osetup.dwh.db.schema", but no method with this name exists 2019-09-18 13:06:41,161+0300 DEBUG otopi.context context.check:738 "after" parameter of method "otopi.plugins.ovirt_engine_common.ovirt_engine_dwh.db.engine_connection.Plugin._engine_connection" refers to a method name "osetup.db.connection.available", but no method with this name exists 2019-09-18 13:06:41,161+0300 DEBUG otopi.context context.check:738 "after" parameter of method "otopi.plugins.ovirt_engine_common.ovirt_engine_common.system.apache.Plugin._closeup" refers to a method name "osetup.core.engine.start", but no method with this name exists Also, otopi's source code includes an example plugin that causes this, which is used to verify current bug in CI.
This bugzilla is included in oVirt 4.4.0 release, published on May 20th 2020. Since the problem described in this bug report should be resolved in oVirt 4.4.0 release, it has been closed with a resolution of CURRENT RELEASE. If the solution does not work for you, please open a new bug report.