在 2.8.13 稳定版上重新构建（不是升级，之前运行 2.8.13 时没有任何问题）对我来说失败了。
通常，如果重新构建失败，我可以运行 ./launcher start app 来恢复之前的容器（尽管我已经很久没需要使用这个功能了）。但这也不起作用，它在命令行上看起来“正常”，但网站仍然离线且无法访问。
服务器 B 上的配置没有任何更改，我尝试使用未更改的配置重新构建，也尝试仅使用 Docker Manager 且不带任何插件。在服务器 A 上，我尝试添加一个简单的插件（该插件在其他服务器上运行正常，使用的是 2.8.13），这也是我最初重新构建的原因——我也尝试在该服务器上不带插件以及仅使用 Docker Manager 进行重新构建，但均未成功。
根据 Web 面板显示，升级前的现有插件都已更新到最新版本，除了 docker-manager。我还尝试从 app.yml 中移除了几乎所有稍微自定义的内容。
使用的模板如下：
templates:
- "templates/postgres.template.yml"
- "templates/redis.template.yml"
- "templates/web.template.yml"
- "templates/web.ratelimited.template.yml"
- "templates/cloudflare.template.yml"
最后我只是恢复了虚拟机快照。我在两台不同的服务器上遇到了相同的问题（这是我尝试过的仅有的两台）。
为了获取日志的相关部分，我在恢复的虚拟机上再次尝试，日志如下：
From https://github.com/discourse/discourse_docker
e0f27d1..0595fc2 main -> origin/main
+ 4fae4a0...2e142d4 ruby-3.2 -> origin/ruby-3.2 (forced update)
bdc1b59..4ffccf2 yarn-timeout -> origin/yarn-timeout
Updating Launcher...
Updating e0f27d1..0595fc2
Fast-forward
image/base/VERSION | 1 -
image/base/install-imagemagick | 4 ++--
image/base/install-jemalloc | 10 +++++-----
image/base/install-nginx | 4 ++--
image/base/install-oxipng | 4 ++--
image/base/install-redis | 4 ++--
image/base/install-ruby | 7 ++++++-
image/base/install-rust | 30 ++++++++++++++++++++++++++++++
image/base/slim.Dockerfile | 12 +++++++++---
launcher | 2 +-
10 files changed, 59 insertions(+), 19 deletions(-)
delete mode 100644 image/base/VERSION
create mode 100755 image/base/install-rust
Launcher updated, restarting...
x86_64 arch detected.
Post-install message from image_optim:
Rails image assets optimization is extracted into image_optim_rails gem
You can safely remove `config.assets.image_optim = false` if you are not going to use that gem
I, [2022-12-28T05:28:46.999225 #1] INFO -- : > cd /var/www/discourse && su discourse -c 'LOAD_PLUGINS=0 bundle exec rake plugin:pull_compatible_all'
I, [2022-12-28T05:28:51.255157 #1] INFO -- : docker_manager is already at latest compatible version
I, [2022-12-28T05:28:51.256526 #1] INFO -- : > cd /var/www/discourse && su discourse -c 'bundle exec rake db:migrate'
rake aborted!
LoadError: cannot load such file -- net/pop
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:93:in `register'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:44:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.0/lib/zeitwerk/kernel.rb:35:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:332:in `block in require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:299:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:332:in `require'
/var/www/discourse/lib/validators/pop3_polling_enabled_setting_validator.rb:3:in `<main>'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:88:in `register'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.0/lib/zeitwerk/kernel.rb:35:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:332:in `block in require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:299:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:332:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:424:in `block in require_or_load'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:39:in `block in load_interlock'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies/interlock.rb:14:in `block in loading'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/concurrency/share_lock.rb:151:in `exclusive'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies/interlock.rb:13:in `loading'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:39:in `load_interlock'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:402:in `require_or_load'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:558:in `load_missing_constant'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:213:in `const_missing'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/inflector/methods.rb:274:in `const_get'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/inflector/methods.rb:274:in `constantize'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/core_ext/string/inflections.rb:74:in `constantize'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/core_ext/object/try.rb:15:in `public_send'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/core_ext/object/try.rb:15:in `try'
/var/www/discourse/lib/site_settings/type_supervisor.rb:114:in `load_setting'
/var/www/discourse/lib/site_setting_extension.rb:170:in `block in setting'
/var/www/discourse/lib/site_setting_extension.rb:127:in `synchronize'
/var/www/discourse/lib/site_setting_extension.rb:127:in `setting'
/var/www/discourse/app/models/site_setting.rb:12:in `block in load_settings'
/var/www/discourse/lib/site_settings/yaml_loader.rb:22:in `block (2 levels) in load'
/var/www/discourse/lib/site_settings/yaml_loader.rb:13:in `each'
/var/www/discourse/lib/site_settings/yaml_loader.rb:13:in `block in load'
/var/www/discourse/lib/site_settings/yaml_loader.rb:12:in `each_key'
/var/www/discourse/lib/site_settings/yaml_loader.rb:12:in `load'
/var/www/discourse/app/models/site_setting.rb:11:in `load_settings'
/var/www/discourse/app/models/site_setting.rb:16:in `<class:SiteSetting>'
/var/www/discourse/app/models/site_setting.rb:3:in `<main>'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:88:in `register'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.0/lib/zeitwerk/kernel.rb:35:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:332:in `block in require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:299:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:332:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:424:in `block in require_or_load'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:39:in `block in load_interlock'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies/interlock.rb:14:in `block in loading'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/concurrency/share_lock.rb:151:in `exclusive'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies/interlock.rb:13:in `loading'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:39:in `load_interlock'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:402:in `require_or_load'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:558:in `load_missing_constant'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:213:in `const_missing'
/var/www/discourse/config/initializers/004-message_bus.rb:122:in `<main>'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:60:in `load'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:60:in `load'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:326:in `block in load'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:299:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:326:in `load'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/engine.rb:681:in `block in load_config_initializer'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/notifications.rb:205:in `instrument'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/engine.rb:680:in `load_config_initializer'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/engine.rb:634:in `block (2 levels) in <class:Engine>'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/engine.rb:633:in `each'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/engine.rb:633:in `block in <class:Engine>'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/initializable.rb:32:in `instance_exec'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/initializable.rb:32:in `run'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/initializable.rb:61:in `block in run_initializers'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/initializable.rb:50:in `each'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/initializable.rb:50:in `tsort_each_child'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/initializable.rb:60:in `run_initializers'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/application.rb:391:in `initialize!'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/railtie.rb:207:in `public_send'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/railtie.rb:207:in `method_missing'
/var/www/discourse/config/environment.rb:7:in `<main>'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:88:in `register'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/bootsnap-1.9.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.0/lib/zeitwerk/kernel.rb:35:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:332:in `block in require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:299:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/activesupport-6.1.6.1/lib/active_support/dependencies.rb:332:in `require'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/application.rb:367:in `require_environment!'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/railties-6.1.6.1/lib/rails/application.rb:533:in `block in run_tasks_blocks'
/var/www/discourse/vendor/bundle/ruby/3.1.0/gems/rake-13.0.6/exe/rake:27:in `<top (required)>'
/usr/local/bin/bundle:25:in `load'
/usr/local/bin/bundle:25:in `<main>'
Tasks: TOP => db:migrate => db:load_config => environment
(See full trace by running task with --trace)
I, [2022-12-28T05:28:55.997202 #1] INFO -- :
I, [2022-12-28T05:28:56.008251 #1] INFO -- : Terminating async processes
I, [2022-12-28T05:28:56.009774 #1] INFO -- : Sending INT to HOME=/var/lib/postgresql USER=postgres exec chpst -u postgres:postgres:ssl-cert -U postgres:postgres:ssl-cert /usr/lib/postgresql/13/bin/postmaster -D /etc/postgresql/13/main pid: 41
I, [2022-12-28T05:28:56.010776 #1] INFO -- : Sending TERM to exec chpst -u redis -U redis /usr/bin/redis-server /etc/redis/redis.conf pid: 102
2022-12-28 05:28:56.010 UTC [41] LOG: received fast shutdown request
2022-12-28 05:28:56.020 UTC [41] LOG: aborting any active transactions
102:signal-handler (1672205336) Received SIGTERM scheduling shutdown...
102:M 28 Dec 2022 05:28:56.027 # User requested shutdown...
102:M 28 Dec 2022 05:28:56.029 * Saving the final RDB snapshot before exiting.
2022-12-28 05:28:56.034 UTC [41] LOG: background worker "logical replication launcher" (PID 50) exited with exit code 1
2022-12-28 05:28:56.039 UTC [45] LOG: shutting down
2022-12-28 05:28:56.083 UTC [41] LOG: database system is shut down
102:M 28 Dec 2022 05:28:56.242 * DB saved on disk
102:M 28 Dec 2022 05:28:56.243 # Redis is now ready to exit, bye bye...
FAILED
--------------------
Pups::ExecError: cd /var/www/discourse && su discourse -c 'bundle exec rake db:migrate' failed with return #<Process::Status: pid 1797 exit 1>
Location of failure: /usr/local/lib/ruby/gems/3.1.0/gems/pups-1.1.1/lib/pups/exec_command.rb:117:in `spawn'
exec failed with the params {"cd"=>"$home", "hook"=>"db_migrate", "cmd"=>["su discourse -c 'bundle exec rake db:migrate'"]}
bootstrap failed with exit code 1
** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one.
./discourse-doctor may help diagnose the problem.