Allow to change the application name for deployments
When someone installs CONSUL with the installer using
a custom `app_name`, the deployment configuration file
must use the same application name; otherwise, the
Capistrano task to update the crontab will duplicate the
crontab entries with different names causing unexpected
errors.
Below is an example of the issue. The first set of crontab
entries was created during installation using a custom
app_name. The second set of entries are duplicated
during the first deployment with a wrong application
name in the config/deploy.rb file.
```
deploy@ubuntu:~$ crontab -l
* * * * * /bin/bash -l -c 'date > ~/cron-test.txt'
0 5 * * * /bin/bash -l -c 'cd /home/deploy/participacyl/releases/20230529101753 && RAILS_ENV=production bundle exec rake -s sitemap:refresh --silent'
0 1 * * * /bin/bash -l -c 'cd /home/deploy/participacyl/releases/20230529101753 && RAILS_ENV=production bundle exec rake files:remove_old_cached_attachments --silent'
0 3 * * * /bin/bash -l -c 'cd /home/deploy/participacyl/releases/20230529101753 && RAILS_ENV=production bundle exec rake votes:reset_hot_score --silent'
0 0,2,4,6,8,10,12,14,16,18,20,22 * * * /bin/bash -l -c 'cd /home/deploy/participacyl/releases/20230529101753 && RAILS_ENV=production bundle exec rake -s stats:generate --silent'
@reboot /bin/bash -l -c 'cd /home/deploy/participacyl/releases/20230529101753 && bundle exec puma -C config/puma/production.rb'
@reboot /bin/bash -l -c 'cd /home/deploy/participacyl/releases/20230529101753 && RAILS_ENV=production bin/delayed_job -n 2 restart'
* * * * * /bin/bash -l -c 'date > ~/cron-test.txt'
0 5 * * * /bin/bash -l -c 'cd /home/deploy/participacyl/releases/20230530112702 && RAILS_ENV=production bundle exec rake -s sitemap:refresh --silent'
0 1 * * * /bin/bash -l -c 'cd /home/deploy/participacyl/releases/20230530112702 && RAILS_ENV=production bundle exec rake files:remove_old_cached_attachments --silent'
0 3 * * * /bin/bash -l -c 'cd /home/deploy/participacyl/releases/20230530112702 && RAILS_ENV=production bundle exec rake votes:reset_hot_score --silent'
0 0,2,4,6,8,10,12,14,16,18,20,22 * * * /bin/bash -l -c 'cd /home/deploy/participacyl/releases/20230530112702 && RAILS_ENV=production bundle exec rake -s stats:generate --silent'
@reboot /bin/bash -l -c 'cd /home/deploy/participacyl/releases/20230530112702 && bundle exec puma -C config/puma/production.rb'
```
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