How to automatically restart delayed_job when deploying a rails project on Amazon Elastic Beanstalk?

Question

I\'m hosting a rails project on Amazon Elastic Beanstalk and I try to configure a container command to automatically restart my delayed_job worker on the server after each d

Answer 1

On 64bit Amazon Linux 2014.09 v1.1.0 running Ruby 2.1 (Passenger Standalone), got it working thanks to this post.

Note that this script is run as root, but your workers should be run as the webapp user.

# Adds a post-deploy hook such that after a new version is deployed
# successfully, restarts the delayed_job workers.
#
# http://stackoverflow.com/questions/14401204/how-to-automatically-restart-delayed-job-when-deploying-a-rails-project-on-amazo
# http://www.dannemanne.com/posts/post-deployment_script_on_elastic_beanstalk_restart_delayed_job
files:
  "/opt/elasticbeanstalk/hooks/appdeploy/post/50_restart_delayed_job.sh":
    mode: "000755"
    owner: root
    group: root
    encoding: plain
    content: |
      #!/usr/bin/env bash

      EB_SCRIPT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k script_dir)
      EB_APP_CURRENT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k app_deploy_dir)
      EB_APP_USER=$(/opt/elasticbeanstalk/bin/get-config container -k app_user)
      EB_SUPPORT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k support_dir)
      EB_APP_PIDS_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k app_pid_dir)

      . $EB_SUPPORT_DIR/envvars
      . $EB_SCRIPT_DIR/use-app-ruby.sh

      cd $EB_APP_CURRENT_DIR

      # Switch to the webapp user.  Worker shouldn't be run as root.
      su -s /bin/bash -c "bundle exec bin/delayed_job --pid-dir=$EB_APP_PIDS_DIR restart" $EB_APP_USER