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In a Redmine container based on an official image on Docker Hub, I am trying to set up a cron job to send reminder e-mails periodically.

As instructed here, typing bundle exec rake redmine:send_reminders RAILS_ENV=production as root inside the container works fine. However, setting the same command using crontab -e does not work and outputs various error messages. I suspect that they have something to do with setting correct PATH for Bundler or rake, but not being familiar with Ruby apps I am totally lost right now. I even tried adding (seemingly) relevant environment variables to crontab such that:

PATH=/usr/local/bundle/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
RUBY_MAJOR=2.6
RUBY_VERSION=2.6.5
RUBY_DOWNLOAD_SHA256=d5d6da717fd48524596f9b78ac5a2eeb9691753da5c06923a6c31190abe01a62
GEM_HOME=/usr/local/bundle
BUNDLE_SILENCE_ROOT_WARNING=1
BUNDLE_APP_CONFIG=/usr/local/bundle
RAILS_ENV=production
HOME=/home/redmine
REDMINE_VERSION=4.1.0

but so far to no avail.

The followings are what I've tried adding on crontab -e so far. Each commands are (of course) preceded by cron's date time string format, and trailed by > /var/log/myjob.log 2>&1 to log whatever it outputs.

  • root cd /usr/src/redmine; bundle exec rake redmine:send_reminders RAILS_ENV=production
  • root cd /usr/src/redmine; /usr/local/bin/bundle exec /usr/local/bundle/bin/rake redmine:send_reminders RAILS_ENV=production

Could not locate Gemfile or .bundle/ directory

  • cd /usr/src/redmine; /usr/local/bin/bundle exec /usr/local/bundle/bin/rake redmine:send_reminders RAILS_ENV=production
  • /usr/src/redmine/remind.sh (The following script)

remind.sh

#!/bin/bash
cd /usr/src/redmine
bundle exec /usr/local/bundle/bin/rake redmine:send_reminders days=7 RAILS_ENV="production"

bundler: failed to load command: /usr/local/bundle/bin/rake
(/usr/local/bundle/bin/rake) Bundler::GemNotFound: Could not find
rake-13.0.1 in any of the sources  
/usr/local/lib/ruby/2.6.0/bundler/spec_set.rb:91:in `block in
materialize'   /usr/local/lib/ruby/2.6.0/bundler/spec_set.rb:85:in
`map!'   /usr/local/lib/ruby/2.6.0/bundler/spec_set.rb:85:in
`materialize'   /usr/local/lib/ruby/2.6.0/bundler/definition.rb:170:in
`specs'   /usr/local/lib/ruby/2.6.0/bundler/definition.rb:237:in
`specs_for'   /usr/local/lib/ruby/2.6.0/bundler/definition.rb:226:in
`requested_specs'  
/usr/local/lib/ruby/2.6.0/bundler/runtime.rb:108:in `block in
definition_method'  
/usr/local/lib/ruby/2.6.0/bundler/runtime.rb:20:in `setup'  
/usr/local/lib/ruby/2.6.0/bundler.rb:107:in `setup'  
/usr/local/lib/ruby/2.6.0/bundler/setup.rb:20:in `<top (required)>'  
/usr/local/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in
`require'  
/usr/local/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in
`require'
  • root cd /usr/local/bundle/bin/rake; rake --trace redmine:send_reminders RAILS_ENV=production
rake aborted! No Rakefile found (looking for: rakefile, Rakefile,
rakefile.rb, Rakefile.rb)
/usr/local/lib/ruby/gems/2.6.0/gems/rake-12.3.2/lib/rake/application.rb:698:in
`raw_load_rakefile'
/usr/local/lib/ruby/gems/2.6.0/gems/rake-12.3.2/lib/rake/application.rb:104:in
`block in load_rakefile'
/usr/local/lib/ruby/gems/2.6.0/gems/rake-12.3.2/lib/rake/application.rb:186:in
`standard_exception_handling'
/usr/local/lib/ruby/gems/2.6.0/gems/rake-12.3.2/lib/rake/application.rb:103:in
`load_rakefile'
/usr/local/lib/ruby/gems/2.6.0/gems/rake-12.3.2/lib/rake/application.rb:82:in
`block in run'
/usr/local/lib/ruby/gems/2.6.0/gems/rake-12.3.2/lib/rake/application.rb:186:in
`standard_exception_handling'
/usr/local/lib/ruby/gems/2.6.0/gems/rake-12.3.2/lib/rake/application.rb:80:in
`run' /usr/local/lib/ruby/gems/2.6.0/gems/rake-12.3.2/exe/rake:27:in
`<top (required)>' /usr/local/bundle/bin/rake:23:in `load'
/usr/local/bundle/bin/rake:23:in `<main>'

Here is what is inside /usr/src/redmine. A file named Gemfile exists.

root@975094a2b06b:/usr/src/redmine# ls -l
total 140
-rw-rw-r--  1 redmine redmine  538 Dec 20  2019 CONTRIBUTING.md
-rw-rw-r--  1 redmine redmine 2937 Dec 20  2019 Gemfile
-rw-rw-rw-  1 redmine redmine 5665 Apr 21  2020 Gemfile.lock
-rw-r--r--  1 root    root    5491 Feb 27  2020 Gemfile.lock.mysql2
-rw-r--r--  1 root    root    5483 Feb 27  2020 Gemfile.lock.postgresql
-rw-r--r--  1 root    root    5493 Feb 27  2020 Gemfile.lock.sqlite3
-rw-r--r--  1 root    root    5645 Feb 27  2020 Gemfile.lock.sqlserver
-rw-rw-r--  1 redmine redmine  205 Dec 20  2019 README.rdoc
-rwxrwxr-x  1 redmine redmine  275 Dec 20  2019 Rakefile
drwxrwxr-x  6 redmine redmine 4096 Dec 20  2019 app
-rw-rw-r--  1 redmine redmine  863 Dec 20  2019 appveyor.yml
drwxrwxr-x  2 redmine redmine 4096 Dec 20  2019 bin
drwxr-xr-x  1 redmine redmine 4096 Mar 26  2020 config
-rw-r--r--  1 root    root     136 Mar 10  2020 config.ru
drwxrwxrwx  1 redmine redmine 4096 Mar 26  2020 db
drwxrwxr-x  2 redmine redmine 4096 Dec 20  2019 doc
drwxrwxr-x  5 redmine redmine 4096 Dec 20  2019 extra
drwxr-xr-x  3 redmine redmine 4096 Oct 19 10:16 files
drwxrwxr-x  6 redmine redmine 4096 Dec 20  2019 lib
drwxr-xr-x  2 redmine redmine 4096 Mar 18  2020 log
drwxr-xr-x  5 redmine redmine 4096 Mar 26  2020 plugins
drwxrwxr-x  1 redmine redmine 4096 Dec 20  2019 public
-rwxr-xr-x  1 root    root     125 Dec 17 16:24 remind.sh
drwxrwxrwx  2 redmine redmine 4096 Feb 27  2020 sqlite
drwxrwxr-x 14 redmine redmine 4096 Dec 20  2019 test
drwxr-xr-x  1 redmine redmine 4096 Feb 27  2020 tmp
drwxrwxr-x  2 redmine redmine 4096 Dec 20  2019 vendor

What is the correct command ?

user6493398
  • 11
  • 2

1 Answers1

0

It turned out that crond included in BusyBox could run bundle exec rake... command without a problem. Perhaps it handles environment variables differently from standard crond?

All I had to do was

apt-get install busybox-static
busybox crontab -e

and then adding following job to crontab's list.

0 7 * * 1-5 cd /usr/src/redmine; bundle exec rake redmine:send_reminders RAILS_ENV=production

Please note that, for the time being, those steps were done manually inside the running Redmine container. I will add these to Dockerfile later.

user6493398
  • 11
  • 2