Bug #18763: remove unused rake tasks - Arvados

This file defines "symbols:check" and "symbols:stringify", which were used to migrate pre-2.0 Arvados installations as documented at No longer stripping ‘:’ from strings in serialized database columns. We don't need to keep this task in the repo going forward.

delete_old_job_logs.rake

This file defines "db:delete_old_job_logs". The jobs API was only every used in on-prem installations, and it became read-only with the 2.0 release. This job is not referenced from anywhere in the codebase or documentation. Remove.

Need to keep:¶

delete_old_container_logs.rake

This file defines "db:delete_old_container_logs". This rake task is referenced in the configuration reference:

    Containers:
      Logging:
        # When you run the db:delete_old_container_logs task, it will find
        # containers that have been finished for at least this many seconds,
        # and delete their stdout, stderr, arv-mount, crunch-run, and
        # crunchstat logs from the logs table.
        MaxAge: 720h

We still need this rake task, but we should replace it with a background task in controller, see #18863.

manage_long_lived_tokens.rake

This file defines "db:check_long_lived_tokens" and "db:fix_long_lived_tokens" which are used to apply a new token lifetime policy to existing tokens, as documented at https://doc.arvados.org/admin/token-expiration-policy.html

replay_job_log.rake

This file defines "replay_job_log". It also includes lib/simulate_job_log.rb, which is not used anywhere else. This rake task is used in a workbench1 test, cf. test "live log charting from replayed log" in apps/workbench/test/integration/websockets_test.rb. We can remove this rake task when we finally retire workbench1. Ticket for that: #18862

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