Switching to another Redis instance?

Installation
1

My Discourse instance formerly used a shared Redis instance with other applications. Now I want to make Discourse use its own Redis instance. Can I just edit YML configuration, bootstrap new image, restart the container and find out everything is fine?

I get the following error when bootstrapping the new image:

I, [2019-09-09T16:58:33.448153 #1]  INFO -- : > cd /var/www/discourse && su discourse -c 'bundle exec rake db:migrate'
rake aborted!
Redis::CannotConnectError: Error connecting to Redis on 172.16.255.89:6379 (Redis::TimeoutError)
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:344:in `rescue in establish_connection'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:328:in `establish_connection'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:99:in `block in connect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:291:in `with_reconnect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:98:in `connect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:363:in `ensure_connected'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:219:in `block in process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:304:in `logging'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:218:in `process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:118:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:523:in `block in del'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:45:in `block in synchronize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:45:in `synchronize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:522:in `del'
/var/www/discourse/lib/discourse_redis.rb:220:in `block in del'
/var/www/discourse/lib/discourse_redis.rb:173:in `ignore_readonly'
/var/www/discourse/lib/discourse_redis.rb:218:in `del'
/var/www/discourse/lib/cache.rb:59:in `delete_entry'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:457:in `block in delete'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:663:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/notifications.rb:170:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:663:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:456:in `delete'
/var/www/discourse/lib/site_setting_extension.rb:424:in `clear_cache!'
/var/www/discourse/lib/site_setting_extension.rb:300:in `block in refresh!'
/var/www/discourse/lib/site_setting_extension.rb:279:in `synchronize'
/var/www/discourse/lib/site_setting_extension.rb:279:in `refresh!'
/var/www/discourse/lib/site_setting_extension.rb:484:in `block in setup_methods'
/var/www/discourse/config/initializers/004-message_bus.rb:120:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `block in load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:657:in `block in load_config_initializer'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/notifications.rb:170:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:656:in `load_config_initializer'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:614:in `block (2 levels) in <class:Engine>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:613:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:613:in `block in <class:Engine>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `instance_exec'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `run'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:61:in `block in run_initializers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:50:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:50:in `tsort_each_child'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:60:in `run_initializers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:361:in `initialize!'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/railtie.rb:190:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/railtie.rb:190:in `method_missing'
/var/www/discourse/config/environment.rb:7:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:337:in `require_environment!'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:520:in `block in run_tasks_blocks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
/usr/local/bin/bundle:23:in `load'
/usr/local/bin/bundle:23:in `<main>'

Caused by:
Redis::TimeoutError: Redis::TimeoutError
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/connection/hiredis.rb:26:in `rescue in connect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/connection/hiredis.rb:10:in `connect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:334:in `establish_connection'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:99:in `block in connect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:291:in `with_reconnect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:98:in `connect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:363:in `ensure_connected'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:219:in `block in process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:304:in `logging'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:218:in `process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:118:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:523:in `block in del'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:45:in `block in synchronize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:45:in `synchronize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:522:in `del'
/var/www/discourse/lib/discourse_redis.rb:220:in `block in del'
/var/www/discourse/lib/discourse_redis.rb:173:in `ignore_readonly'
/var/www/discourse/lib/discourse_redis.rb:218:in `del'
/var/www/discourse/lib/cache.rb:59:in `delete_entry'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:457:in `block in delete'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:663:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/notifications.rb:170:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:663:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:456:in `delete'
/var/www/discourse/lib/site_setting_extension.rb:424:in `clear_cache!'
/var/www/discourse/lib/site_setting_extension.rb:300:in `block in refresh!'
/var/www/discourse/lib/site_setting_extension.rb:279:in `synchronize'
/var/www/discourse/lib/site_setting_extension.rb:279:in `refresh!'
/var/www/discourse/lib/site_setting_extension.rb:484:in `block in setup_methods'
/var/www/discourse/config/initializers/004-message_bus.rb:120:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `block in load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:657:in `block in load_config_initializer'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/notifications.rb:170:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:656:in `load_config_initializer'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:614:in `block (2 levels) in <class:Engine>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:613:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:613:in `block in <class:Engine>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `instance_exec'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `run'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:61:in `block in run_initializers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:50:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:50:in `tsort_each_child'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:60:in `run_initializers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:361:in `initialize!'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/railtie.rb:190:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/railtie.rb:190:in `method_missing'
/var/www/discourse/config/environment.rb:7:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:337:in `require_environment!'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:520:in `block in run_tasks_blocks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
/usr/local/bin/bundle:23:in `load'
/usr/local/bin/bundle:23:in `<main>'

Caused by:
Errno::ETIMEDOUT: Connection timed out
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/connection/hiredis.rb:19:in `connect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/connection/hiredis.rb:19:in `connect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:334:in `establish_connection'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:99:in `block in connect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:291:in `with_reconnect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:98:in `connect'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:363:in `ensure_connected'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:219:in `block in process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:304:in `logging'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:218:in `process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis/client.rb:118:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:523:in `block in del'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:45:in `block in synchronize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:45:in `synchronize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/redis-4.0.1/lib/redis.rb:522:in `del'
/var/www/discourse/lib/discourse_redis.rb:220:in `block in del'
/var/www/discourse/lib/discourse_redis.rb:173:in `ignore_readonly'
/var/www/discourse/lib/discourse_redis.rb:218:in `del'
/var/www/discourse/lib/cache.rb:59:in `delete_entry'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:457:in `block in delete'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:663:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/notifications.rb:170:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:663:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/cache.rb:456:in `delete'
/var/www/discourse/lib/site_setting_extension.rb:424:in `clear_cache!'
/var/www/discourse/lib/site_setting_extension.rb:300:in `block in refresh!'
/var/www/discourse/lib/site_setting_extension.rb:279:in `synchronize'
/var/www/discourse/lib/site_setting_extension.rb:279:in `refresh!'
/var/www/discourse/lib/site_setting_extension.rb:484:in `block in setup_methods'
/var/www/discourse/config/initializers/004-message_bus.rb:120:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `block in load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:657:in `block in load_config_initializer'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/notifications.rb:170:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:656:in `load_config_initializer'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:614:in `block (2 levels) in <class:Engine>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:613:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:613:in `block in <class:Engine>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `instance_exec'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `run'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:61:in `block in run_initializers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:50:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:50:in `tsort_each_child'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:60:in `run_initializers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:361:in `initialize!'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/railtie.rb:190:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/railtie.rb:190:in `method_missing'
/var/www/discourse/config/environment.rb:7:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:337:in `require_environment!'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:520:in `block in run_tasks_blocks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
/usr/local/bin/bundle:23:in `load'
/usr/local/bin/bundle:23:in `<main>'
Tasks: TOP => db:migrate => db:load_config => environment
(See full trace by running task with --trace)
I, [2019-09-09T16:58:49.923376 #1]  INFO -- :


FAILED
--------------------
Pups::ExecError: cd /var/www/discourse && su discourse -c 'bundle exec rake db:migrate' failed with return #<Process::Status: pid 208 exit 1>
Location of failure: /pups/lib/pups/exec_command.rb:112:in `spawn'
exec failed with the params {"cd"=>"$home", "hook"=>"db_migrate", "cmd"=>["su discourse -c 'bundle exec rake db:migrate'"]}
5b808f4c1f3da6f04f86c6ff78cd81984c9595c6bdb87fb2a72cc2ea28b615e8
** 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.

I’m not sure if it’s needed to migrate data from old Redis instance to make work.

1 Like
2

Ensure that the container can reach that IP.

No need for that.

3 Likes
3

It seems that a normal container(instead of kubernetes pods) cannot connect to a kubernetes ClusterIP. I tried to connect to my new Redis instance using redis-cli in a Redis container and failed. However, I can connect to the Redis instance on host. What’s the recommended way to build in a Kubernetes environment?

4

We provide standard ways to connect to databases outside the application container, like Configure Discourse to use a separate PostgreSQL server. The details of networking on those advanced setups are up to you, since it will be wildly different depending on your implementation.

We already gives a dead simple install for everyone on discourse/docs/INSTALL-cloud.md at main · discourse/discourse · GitHub that works and power thousands of instances in the internet. I’m afraid that those who opt into following their own path will have to deal with the consequences as it is impossible for us to provide support for all the possible combinations.

6 Likes
5

For anyone run into the same problem, I ended up using ./launcher bootstrap web_only --docker-args "--network=host" to solve the problem. Seems that a k8s node host can connect to a ClusterIP while a normal Docker container(not a k8s pod) cannot.

2 Likes
6

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.