75 lines
3.4 KiB
Ruby
75 lines
3.4 KiB
Ruby
# frozen_string_literal: true
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require 'tty-prompt'
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module Mastodon::CLI
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module Federation
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extend ActiveSupport::Concern
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included do
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desc 'self-destruct', 'Erase the server from the federation'
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long_desc <<~LONG_DESC
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Erase the server from the federation by broadcasting account delete
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activities to all known other servers. This allows a "clean exit" from
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running a Mastodon server, as it leaves next to no cache behind on
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other servers.
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This command is always interactive and requires confirmation twice.
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No local data is actually deleted, because emptying the
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database or removing files is much faster through other, external
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means, such as e.g. deleting the entire VPS. However, because other
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servers will delete data about local users, but no local data will be
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updated (such as e.g. followers), there will be a state mismatch
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that will lead to glitches and issues if you then continue to run and use
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the server.
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So either you know exactly what you are doing, or you are starting
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from a blank slate afterwards by manually clearing out all the local
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data!
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LONG_DESC
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def self_destruct
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if SelfDestructHelper.self_destruct?
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prompt.ok('Self-destruct mode is already enabled for this Mastodon server')
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pending_accounts = Account.local.without_suspended.count + Account.local.suspended.joins(:deletion_request).count
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sidekiq_stats = Sidekiq::Stats.new
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if pending_accounts.positive?
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prompt.warn("#{pending_accounts} accounts are still pending deletion.")
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elsif sidekiq_stats.enqueued.positive?
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prompt.warn('Deletion notices are still being processed')
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elsif sidekiq_stats.retry_size.positive?
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prompt.warn('At least one delivery attempt for each deletion notice has been made, but some have failed and are scheduled for retry')
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else
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prompt.ok('Every deletion notice has been sent! You can safely delete all data and decomission your servers!')
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end
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exit(0)
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end
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exit(1) unless prompt.ask('Type in the domain of the server to confirm:', required: true) == Rails.configuration.x.local_domain
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prompt.warn('This operation WILL NOT be reversible.')
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prompt.warn('While the data won\'t be erased locally, the server will be in a BROKEN STATE afterwards.')
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prompt.warn('The deletion process itself may take a long time, and will be handled by Sidekiq, so do not shut it down until it has finished (you will be able to re-run this command to see the state of the self-destruct process).')
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exit(1) if prompt.no?('Are you sure you want to proceed?')
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self_destruct_value = Rails.application.message_verifier('self-destruct').generate(Rails.configuration.x.local_domain)
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prompt.ok('To switch Mastodon to self-destruct mode, add the following variable to your evironment (e.g. by adding a line to your `.env.production`) and restart all Mastodon processes:')
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prompt.ok(" SELF_DESTRUCT=#{self_destruct_value}")
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prompt.ok("\nYou can re-run this command to see the state of the self-destruct process.")
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rescue TTY::Reader::InputInterrupt
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exit(1)
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end
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private
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def prompt
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@prompt ||= TTY::Prompt.new
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end
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end
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end
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end
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