Hi everyone,
I am just wondering what the proper way to setup an on_rollback method
is?
As of right now, my deploy.rb file does this:
before "deploy", "deploy:web:disable"
after "deploy", "deploy:web:enable"
disable_path = "#{shared_path}/system/maintenance"
namespace :deploy do
namespace :web do
desc "Disables the website by putting the maintenance files live."
task :disable, :roles => :web, :except => { :no_release => true }
do
on_rollback { run "mv #{disable_path}/index.html #{disable_path}/
index.disabled.html" }
run "mv #{disable_path}/index.disabled.html #{disable_path}/
index.html"
end
desc "Enables the website by disabling the maintenance files."
task :enable, :roles => :web, :except => { :no_release => true }
do
run "rm -f #{disable_path}/index.html"
end
desc "Copies your maintenance from public/maintenance to shared/
system/maintenance."
task :update_maintenance_page, :roles => :web, :except =>
{ :no_release => true } do
run "cp -R #{release_path}/public/maintenance/*
#{disable_path}/"
end
end
end
....
But if a deploy fails, then the next time you try to deploy it fails
because it can't find index.disabled.html... So I want to add a hook
for rollback that will move the index.html back to index.disabled.html
I found this:
https://github.com/capistrano/capistrano/wiki/2.x-DSL-Configuration-Execution-On-Rollback
But I am not quite sure if that's the proper way to do it?
If I am understanding correctly, I would need to modify my deploy.rb
to have in it:
include Capistrano::Configuration::Execution
on_rollback { find_and_execute_task("deploy:web:enable") }
...
Is this correct? Or is there a better way?
Thanks!
-patrick
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