# Including new Gems to work with logstash-filter-ruby

**URL:** <https://discuss.elastic.co/t/including-new-gems-to-work-with-logstash-filter-ruby/160447>\
**Category:** Logstash\
**Created:** [December 11, 2018, 10:28pm UTC](https://discuss.elastic.co/t/including-new-gems-to-work-with-logstash-filter-ruby/160447 "2018-12-11T22:28:06Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Smitto](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/smitto/32/38710_2.png) [@Smitto](https://discuss.elastic.co/u/Smitto)\
**Post date:** [December 11, 2018, 10:28pm UTC](https://discuss.elastic.co/t/including-new-gems-to-work-with-logstash-filter-ruby/160447/1 "2018-12-11T22:28:06Z")

</div>

I'm working on applying some custom filters using the logstash-filter-ruby plugin that make use of the Timezone gem at [https://github.com/panthomakos/timezone](https://github.com/panthomakos/timezone). When simply adding  
`gem 'timezone', '~> 1.0'`  
to my logstash Gemfile and running `bundle install`, it results in the error

```
[!] There was an error while loading 'logstash-core-plugin-api.gemspec': No such file or directory - 
/my/path/logstash/logstash-6.5.1/logstash-core-plugin- 
api/versions-gem-copy.yml. Bundler cannot continue.

```

I also tried following this post, where someone used `logstash-plugin update` to force the installation of a new ruby gem, but it didn't work: [https://github.com/elastic/logstash/issues/7016](https://github.com/elastic/logstash/issues/7016)

Has anyone added custom ruby gems in their ruby filters?

---

<div class="post-metadata">

**Author:** ![Smitto](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/smitto/32/38710_2.png) [@Smitto](https://discuss.elastic.co/u/Smitto)\
**Post date:** [December 19, 2018, 10:04pm UTC](https://discuss.elastic.co/t/including-new-gems-to-work-with-logstash-filter-ruby/160447/2 "2018-12-19T22:04:04Z")

</div>

Bumping this guy as I've yet to find a consensus method for using external gems in ruby filters.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 16, 2019, 10:04pm UTC](https://discuss.elastic.co/t/including-new-gems-to-work-with-logstash-filter-ruby/160447/3 "2019-01-16T22:04:08Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.