AWS Elastic Beanstalk Ruby 2.2 Puma Sidekiq

0000_packages.config

packages:
  yum:
    git: []
    htop: []

0005_bundle_pack.config

# Modified system bundle script to run 'bundle package'
files:
  "/opt/elasticbeanstalk/hooks/appdeploy/pre/10_bundle_install.sh":
    content: |
      #!/usr/bin/env bash

      . /opt/elasticbeanstalk/hooks/common.sh

      set -xe

      EB_SCRIPT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k script_dir)
      EB_APP_STAGING_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k app_staging_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_SUPPORT_DIR/envvars
      . $EB_SCRIPT_DIR/use-app-ruby.sh

      cd $EB_APP_STAGING_DIR

      if [ -f Gemfile ]; then
          echo "running 'bundle install' with Gemfile:"
          cat Gemfile

          if [ -d $EB_CONFIG_APP_ONDECK/vendor/cache ]; then
            bundle install --local
            # Incase there is a gem that is missing from the cache
            bundle pack --all
            bundle install
          else
            bundle pack --all
            bundle install
          fi
      else
          echo "no Gemfile found! Skipping bundle install stage!"
      fi

      if [ -f Gemfile.lock ]; then
          echo "encountered a Gemfile.lock, setting proper permissions"
          chown $EB_APP_USER:$EB_APP_USER Gemfile.lock
      else
          echo "no Gemfile.lock file found, so no permissions to set on it"
      fi

      if [ "$BUNDLE_DISABLE_SHARED_GEMS" = "1" ]; then
          cd $EB_APP_STAGING_DIR;
          chown -R $EB_APP_USER:$EB_APP_USER ./$BUNDLE_PATH;

          echo "Modified the owner of '$BUNDLE_PATH' files";
      fi

    mode: "000755"

0010_sidekiq.config

# Sidekiq interaction and startup script
files:
  "/opt/elasticbeanstalk/hooks/appdeploy/post/50_restart_sidekiq.sh":
    mode: "000755"
    content: |
      #!/bin/bash

      . /opt/elasticbeanstalk/hooks/common.sh
      . /opt/elasticbeanstalk/support/envvars

      set -xe

      EB_SCRIPT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k script_dir)
      EB_CONFIG_APP_CURRENT=$(/opt/elasticbeanstalk/bin/get-config container -k app_deploy_dir)
      EB_CONFIG_APP_LOGS=$(/opt/elasticbeanstalk/bin/get-config container -k app_log_dir)
      EB_CONFIG_APP_PIDS=$(/opt/elasticbeanstalk/bin/get-config container -k app_pid_dir)

      . $EB_SCRIPT_DIR/use-app-ruby.sh

      BUNDLE=`which bundle`
      SIDEKIQ=`which sidekiq`

      cd $EB_CONFIG_APP_CURRENT

      # for 2 instances of sidekiq, this can be increased are decreased, just make sure it is updated in the both areas
      for i in `seq 1 2`
      do
        PIDFILE=$EB_CONFIG_APP_PIDS/sidekiq-$i.pid

        # stop any running instance
        if [ -f $PIDFILE ]
        then
          SIDEKIQ_LIVES=$(/bin/ps -o pid= -p `cat $PIDFILE`)
            if [ -z $SIDEKIQ_LIVES ]
            then
               rm -rf $PIDFILE
            else
               kill -TERM `cat $PIDFILE`
            fi
        fi

        # start a new instance
        $BUNDLE exec $SIDEKIQ \
          -e production \
          -P $PIDFILE.pid \
          -C $EB_CONFIG_APP_CURRENT/config/sidekiq.yml \
          -L $EB_CONFIG_APP_LOGS/sidekiq.log \
          -d
      done

  "/opt/elasticbeanstalk/hooks/appdeploy/pre/03_quiet_sidekiq.sh":
    mode: "000755"
    content: |
      #!/bin/bash

      . /opt/elasticbeanstalk/support/envvars

      EB_CONFIG_APP_PIDS=$(/opt/elasticbeanstalk/bin/get-config container -k app_pid_dir)

      # for 2 instances of sidekiq, this can be increased are decreased, just make sure it is updated in the both areas
      for i in `seq 1 2`
      do
        PIDFILE=$EB_CONFIG_APP_PIDS/sidekiq-$i.pid

        # quiet any running instance
        if [ -f $PIDFILE ]
        then
          SIDEKIQ_LIVES=$(/bin/ps -o pid= -p `cat $PIDFILE`)
            if [ -z $SIDEKIQ_LIVES ]
            then
               rm -rf $PIDFILE
            else
               kill -USR1 `cat $PIDFILE`
            fi
        fi
      done

It works! Thanks 😄 but '.pid' should be deleted on the line 45, '0010_sidekiq.config'

I had to make two changes to 0010_sidekiq.config on top of topray's recommendation

add '. /opt/elasticbeanstalk/hooks/common.sh' at line 55
remove 'e' from line 11 so it was just 'set -x'

without those changes every time I deployed on the same EB instance I'd get new instances of sidekiq and the old ones would not go away - do that a few times on a t2.micro and you're out of memory :(

Took me several hours to discover this fix. Thanks a lot for sharing!

It didn't work to me. My use case is to send emails. No email is sent and no error is shown and logged. Do you have some ideas on how to fix and even inspect it?