# \[20170203131735\] Build Arguments and AMI Permission Updates

**URL:** <https://community.convox.com/t/20170203131735-build-arguments-and-ami-permission-updates/296>\
**Category:** Releases\
**Created:** [February 3, 2017, 1:17pm UTC](https://community.convox.com/t/20170203131735-build-arguments-and-ami-permission-updates/296 "2017-02-03T13:17:09Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![ddollar](https://yyz1.discourse-cdn.com/flex029/user_avatar/community.convox.com/ddollar/32/3_2.png) [@ddollar](https://community.convox.com/u/ddollar)\
**Post date:** [February 3, 2017, 1:17pm UTC](https://community.convox.com/t/20170203131735-build-arguments-and-ami-permission-updates/296/1 "2017-02-03T13:17:09Z")

</div>

## Docker build arguments

This release include support for docker [build arguments](http://docs-stage.docker.com/v1.10/engine/reference/builder/#arg). Please check the pull request for more information:

- [#1666](https://github.com/convox/rack/pull/1666) build args [[@ddollar](https://github.com/ddollar)]

## Other Improvements

- [#1656](https://github.com/convox/rack/pull/1656) properly handle blank default vars in docker-compose.yml [[@ddollar](https://github.com/ddollar)]
- [#1665](https://github.com/convox/rack/pull/1665) missing elb perm [[@MiguelMoll](https://github.com/MiguelMoll)]
- [#1668](https://github.com/convox/rack/pull/1668) Show correct usage string for ‘convox resources proxy’ [[@soulshake](https://github.com/soulshake)]
- [#1671](https://github.com/convox/rack/pull/1671) autoscaling:DeleteLifecycleHook permission [[@mattmanning](https://github.com/mattmanning)]