500 error in gantt-chart 'v6.0.x' (through upgrade)

[zmotme]

When I upgrade from Redmine v5.0.2 (from redmine docker) to sameersbn docker image, 500 error occurs when pressing gantt chart PNG image button.

I am not sure if it still occur with clean install sameersbn v6.0.2 I'll try later.

My procedure

• db backup on redmine original 5.0.2 installation
• db restore on new sammersbn 5.0.2 + postgresql v14.
• antt-chart png button works okay.
• upgrading with changing tag of sameersbn docker image:
  • 5.0.6
  • 5.1.0
  • 5.1.1-4
  • 5.1.2
  • 5.1.4 (gantt ok)
  • 6.0.2 (gantt fail)

I 've backed up db from 5.1.4 working, and using 5.1.5 it works fine.

[jcormier]

Is Gantt chart support from a plugin? If your using easy-gantt you should check with their support first. https://www.easyredmine.com/product/easy-gantt

[zmotme]

Thanks for opinion about check point, jcormier. But I am not using any plugin related with gantt.

Finally I figured out that gantt.rb uses cli_path as before, but MiniMagick (above v5) remove support cli_path.

It affects all redmine original docker image as well, if imagemagick_convert_command supplied.

error log

redmine-orig       | [3369ac1d-8d3b-49ca-b5d8-cc6f9c5ac01c] NoMethodError (undefined method `cli_path=' for module MiniMagick):
redmine-orig       | [3369ac1d-8d3b-49ca-b5d8-cc6f9c5ac01c]   
redmine-orig       | [3369ac1d-8d3b-49ca-b5d8-cc6f9c5ac01c] lib/redmine/helpers/gantt.rb:399:in `to_image'
redmine-orig       | [3369ac1d-8d3b-49ca-b5d8-cc6f9c5ac01c] app/controllers/gantts_controller.rb:46:in `block (2 levels) in show'
redmine-orig       | [3369ac1d-8d3b-49ca-b5d8-cc6f9c5ac01c] app/controllers/gantts_controller.rb:42:in `show'
redmine-orig       | [3369ac1d-8d3b-49ca-b5d8-cc6f9c5ac01c] lib/redmine/sudo_mode.rb:78:in `sudo_mode'

references

• https://www.rubydoc.info/gems/mini_magick/4.12.0/MiniMagick/Configuration
• https://www.rubydoc.info/gems/mini_magick/5.0.1/MiniMagick/Configuration

Actions taken

I have opened redmine defect#42145.
In sammersbn/redmine, if I fixed configuration.yml as read only mount, container cannot start.
My recommendation to user who want to upgrade v6 branch is to wait till original redmine image fix it.