Bundler error when deploying Rails 6 App to Elastic Beanstalk

Question

I've been struggling getting around the well known bundler 2.0.x error when deploying to both Heroku and AWS Elastic Beanstalk. After trying many of the suggested remedies like updating gems and installing bundler 2.0.x or bundler update --system . None of this has worked so far. I found a solution to create a file in .ebextensions like so:

files:

# Runs before \./10_bundle_install.sh`:`

"/opt/elasticbeanstalk/hooks/appdeploy/pre/09_gem_install_bundler.sh" :

mode: "000775"

owner: root

group: users

content: |

#!/usr/bin/env bash



EB_APP_STAGING_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k app_staging_dir)

EB_SCRIPT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k script_dir)

# Source the application's ruby, i.e. 2.6. Otherwise it will be 2.3, which will give this error: \bundler requires Ruby version >= 2.3.0``

. $EB_SCRIPT_DIR/use-app-ruby.sh



cd $EB_APP_STAGING_DIR

echo "Installing compatible bundler"

gem install bundler -v 2.1.0.pre.2

This is the error I'm still getting on eb deploy staging-1 :

Creating application version archive "app-7b50-191111_122622".
Uploading: [##################################################] 100% Done...
2019-11-11 17:28:21    INFO    Environment update is starting.      
2019-11-11 17:28:28    INFO    Deploying new version to instance(s).
2019-11-11 17:31:36    ERROR   [Instance: i-0ba40e32901557bee] Command failed on instance. Return code: 1 Output: (TRUNCATED)...ystem, run `bundle update --bundler`.
To install the missing version, run `gem install bundler:2.1.0.pre.2`
        from /opt/rubies/ruby-2.6.5/lib/ruby/site_ruby/2.6.0/rubygems.rb:303:in `activate_bin_path'
        from /opt/rubies/ruby-2.6.5/bin/bundle:23:in `<main>'. 
Hook /opt/elasticbeanstalk/hooks/appdeploy/pre/10_bundle_install.sh failed. For more detail, check /var/log/eb-activity.log using console or EB CLI.
2019-11-11 17:31:36    INFO    Command execution completed on all instances. Summary: [Successful: 0, Failed: 1].
2019-11-11 17:31:36    ERROR   Unsuccessful command execution on instance id(s) 'i-0ba40e32901557bee'. Aborting the operation.
2019-11-11 17:31:37    ERROR   Failed to deploy application.        

ERROR: ServiceError - Failed to deploy application.
[12:31:40] (master) tml_portal
// ♥ eb deploy staging-1
Creating application version archive "app-7b50-191111_123229".
Uploading: [##################################################] 100% Done...
2019-11-11 17:34:45    INFO    Environment update is starting.      
2019-11-11 17:34:53    INFO    Deploying new version to instance(s).
2019-11-11 17:37:47    ERROR   [Instance: i-0ba40e32901557bee] Command failed on instance. Return code: 1 Output: (TRUNCATED)...ystem, run `bundle update --bundler`.
To install the missing version, run `gem install bundler:2.1.0.pre.2`
        from /opt/rubies/ruby-2.6.5/lib/ruby/site_ruby/2.6.0/rubygems.rb:303:in `activate_bin_path'
        from /opt/rubies/ruby-2.6.5/bin/bundle:23:in `<main>'. 
Hook /opt/elasticbeanstalk/hooks/appdeploy/pre/10_bundle_install.sh failed. For more detail, check /var/log/eb-activity.log using console or EB CLI.
2019-11-11 17:37:47    INFO    Command execution completed on all instances. Summary: [Successful: 0, Failed: 1].
2019-11-11 17:37:47    ERROR   Unsuccessful command execution on instance id(s) 'i-0ba40e32901557bee'. Aborting the operation.
2019-11-11 17:37:48    ERROR   Failed to deploy application.        

ERROR: ServiceError - Failed to deploy application.

Any ideas on how to get around this dreaded Bundler issue for deployment?

Answer 1

It still the missing bundle version error. Could you try following:

#.ebextensions/bundler_update.config

commands:
  update_bundler:
    command: /opt/rubies/ruby-2.6.5/bin/gem install bundler -v 2.1.0.pre.2

Ruby and Bundler version should match yours.