Run a rake task in all environments

Geordi now has a script that runs capistrano with all known deploy targets (i.e. staging, production...).

Use with

geordi capistrano deploy:migrations

or

geordi capistrano deploy

The abbrevation geordi cap ... works as well.

In order to monitor a Rake task using God your Rake file must write a file with its process ID (PID) to a path determined by God. This way God can check whether the Rake process is still alive.

Here is how to do this:...

Before

To run additional code before an existing Rake tasks you can add a dependency like this:

task :before_task do
  # runs before :existing_task
end

Rake::Task[:existing_task].enhance [:before_task]

The new dependency will be...

This seems to be obvious, but you can expect Rake tasks to be called in RSpec.

it 'deletes all Users' do
   FactroyBot.create(:user)
   expect(Rake::Task['notify:critical_operation']).to receive(:invoke)
   
   expect { described_class.clea...

A Rake task appears in rake -T if it has a description:

desc 'Compile assets'
task :compile do
  ...
end

To not list it, simply omit the description:

task :compile do
  ...
end

You can also hide a Rake task that has been defi...

You can use rake --where task to find the source location that defines task:

bundle exec rake --where assets:precompile
rake assets:precompile              /home/henning/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/precompiled_assets-0....

The following will search for all .feature files containing a search term and run them using geordi.

find features/ -name '*.feature' | xargs grep -li 'YOUR SEARCH TERM' | sort -u | tr '\n' ' ' | xargs ...

This Capistrano task runs a command on all servers.

bundle exec cap production app:run cmd='zgrep -P "..." RAILS_ROOT/log/production.log'

Code

# lib/capistrano/tasks/app.rake

namespace :app do

  # Use e.g. to grep logs on al...

The Rails logger will store its content in a buffer and write it into the file system every 1000 lines. This will come back to bite you when using Rails.logger.info to write log output during Rake tasks or on a production console.

You often won...

We use the whenever gem to automatically update the crontab of the servers we deploy to. By default, whenever will update all servers with a matching role ([we use the :cron role ](https://makandracards.com/m...