2013-07-21 15:42:07 +08:00
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# Discourse Migration Guide
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## Install new server
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Complete a fresh install of Discourse on the new server, following the official guide, except for the initial database population (rake db:migrate).
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## Review old server
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On old server, run `git status` and review changes to the tree. For example:
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# On branch master
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# Changes not staged for commit:
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# (use "git add <file>..." to update what will be committed)
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# (use "git checkout -- <file>..." to discard changes in working directory)
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#
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# modified: app/assets/javascripts/external/Markdown.Editor.js
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# modified: app/views/layouts/application.html.erb
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# modified: config/application.rb
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#
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# Untracked files:
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# (use "git add <file>..." to include in what will be committed)
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#
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# app/views/layouts/application.html.erb.bitnami
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# config/environments/production.rb
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# log/sidekiq.pid
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# vendor/gems/active_model_serializers/
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# vendor/gems/fast_blank/
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# vendor/gems/message_bus/
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# vendor/gems/redis-rack-cache/
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# vendor/gems/sprockets/
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# vendor/gems/vestal_versions/
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### Review for changes
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Review each of the changed files for changes that need to be manually moved over
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* Ignore all files under vendor/gems
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* Ignore files under log/
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Check your config/environments/production.rb, config/discourse.pill,
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config/database.yml (as per the upgrade instructions)
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## Move DB
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Take DB dump with:
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2014-01-31 02:55:43 +08:00
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pg_dump --no-owner -U user_name -W database_name > backup_file_name.sql
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2013-07-21 15:42:07 +08:00
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Copy it over to the new server
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Run as discourse user:
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2014-01-31 02:55:43 +08:00
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```
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createdb discourse_prod
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psql discourse_prod
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2014-01-31 03:04:24 +08:00
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\i backup_file_name.sql
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2014-01-31 02:55:43 +08:00
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```
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2013-07-21 15:42:07 +08:00
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On oldserver:
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2014-01-31 02:55:43 +08:00
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`rsync -avz -e ssh public newserver:public`
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2013-07-21 15:42:07 +08:00
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2014-01-31 02:55:43 +08:00
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On the new server:
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```
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2013-07-21 15:42:07 +08:00
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bundle install --without test --deployment
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RUBY_GC_MALLOC_LIMIT=90000000 RAILS_ENV=production rake db:migrate
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RUBY_GC_MALLOC_LIMIT=90000000 RAILS_ENV=production rake assets:precompile
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RUBY_GC_MALLOC_LIMIT=90000000 RAILS_ENV=production rake posts:rebake
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2014-01-31 02:55:43 +08:00
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```
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If the `rake db:migrate` step fails, you might have to run it twice.
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2013-07-21 15:42:07 +08:00
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Are you just testing your migration? Disable outgoing email by changing
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`config/environments/production.rb` and adding the following below the mail
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configuration:
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config.action_mailer.perform_deliveries = false
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