[JUJU-1950] Use the new lease store in the lease manager #15002
Commits on Dec 13, 2022
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Ensures that foreign keys are enforced when testing the lease store with
in-memory SQLite.
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Removes all raft workers. They are no longer required since we are
moving to Dqlite-backed leases.
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Changes lease manager manifold to work with the new DB-backed lease
store constructor. The FSM and sundries are no longer required and are removed along with all Raft concerns from the manifold declarations.
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Removes unrequired hub from lease manager manifold config and fixes
manifold tests for new inputs.
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Removes the Raft operation queue creation from the machine agent. It is
no longer used, and has been removed.
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Threads the db-accessor into the lease manager worker, and uses it to
retrieve the controller DB, which is used by the lease store.
Commits on Dec 15, 2022
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Creates a new simple test suite for testing controller concerns with
in-memory SQLite. This is used by the lease store tests, which are also fixed for the corrected lease namespaces.
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Adds the lease expiry worker to the common machine manifolds config so
that it runs on all controllers.
Commits on Dec 16, 2022
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Removes lease error handling from the API server where it was instituted
for the purposes of the removed Raft lease client. The "dropped" error is removed, as we no longer emit it anywhere.
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Adds a fallback for unique constraint violation errors by interrogating
the error string. This is intended as a temporary measure which we work out how to ensure detection with Dqlite codes.