Error While building Dockerfile, sprockets requires Ruby version >= 2.5.0.

[saikatharryc]

While building Dockerfile it fails saying :

 ERROR:  Error installing rails:
   sprockets requires Ruby version >= 2.5.0.

coming from Dockerfile#L18.
and I guess we can change it in Dockerfile#L14 and add new version which is equal or above 2.5.0 in here

[lethehaiau]

When following the dev setup, running ./script/run-server return error:
'bin_path': can't find gem bundler (>= 0.a) (Gem::GemNotFoundException)
I try to reinstall rails and get sem error as @saikatharryc

[lethehaiau]

It works now with judge0/api:1.4.0 not lastest : d

[saikatharryc]

@lethehaiau are you able to run the production one?

[lethehaiau]

@saikatharryc the development, I docker pull judge0/api:1.4.0 and update Dockerfile.dev from judge0/api to judge0/api:1.4.0 too. It works now

[hermanzdosilovic]

You can build production build with ./scripts/prod-build that includes --cache-from flag that solves this problem.

Let me know if this helped you.

[noisytoken]

@hermanzdosilovic I tried executing ./scripts/prod-build in production today and got this error.

Successfully installed rack-test-0.6.3
Successfully installed actionpack-5.0.0
Successfully installed bundler-1.15.4
Building native extensions.  This could take a while...
Successfully installed pg-0.18.0
2 gems installed
The command '/bin/sh -c echo "gem: --no-document" > /root/.gemrc &&     gem install       rails:5.0.0       bundler:1.15.4       pg:0.18 &&     npm install -g [email protected]' returned a non-zero code: 1

[hermanzdosilovic]

On what branch did you run this?

[noisytoken]

I am on master. But I also tried it on 1.3.1

[hermanzdosilovic]

Please do the following:

docker pull judge0/api:1.4.0
docker build -t judge0/api --cache-from judge0/api:1.4.0 . # Or ./scripts/prod-build from master branch.

[noisytoken]

when I run the second command on Ubuntu 18.04. I get this error:

Fetching ffi 1.11.1
Installing ffi 1.11.1 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    current directory: /opt/.gem/gems/ffi-1.11.1/ext/ffi_c
/usr/local/ruby-2.3.3/bin/ruby -r ./siteconf20191106-6-1ckb066.rb extconf.rb
Cannot allocate memory - /usr/local/ruby-2.3.3/bin/ruby -r
./siteconf20191106-6-1ckb066.rb extconf.rb 2>&1

Gem files will remain installed in /opt/.gem/gems/ffi-1.11.1 for inspection.
Results logged to
/opt/.gem/extensions/x86_64-linux/2.3.0-static/ffi-1.11.1/gem_make.out

An error occurred while installing ffi (1.11.1), and Bundler cannot continue.
Make sure that `gem install ffi -v '1.11.1' --source 'https://rubygems.org/'`
succeeds before bundling.

In Gemfile:
  listen was resolved to 3.1.5, which depends on
    rb-inotify was resolved to 0.10.0, which depends on
      ffi
The command '/bin/sh -c RAILS_ENV=production bundle' returned a non-zero code: 5

[noisytoken]

Please do the following:

docker pull judge0/api:1.4.0
docker build -t judge0/api --cache-from judge0/api:1.4.0 . # Or ./scripts/prod-build from master branch.

Any update?

[hermanzdosilovic]

I cannot reproduce this. On clean master branch with the above commands I can build Judge0 API. But it seems to me that you have another problem that is not related to Judge0 API.

Cannot allocate memory - /usr/local/ruby-2.3.3/bin/ruby -r

I am not really sure how to "fix" this or how to help you with this. Can you try building it on some other machine?

[saikatharryc]

@hermanzdosilovic I'm able to build by making this from 5.0.0 to 3.2.12, so far it's running fine though.

[hermanzdosilovic]

This problem is now resolved with Judge0 API v1.5.0.