# Git functions (Designer Save) from Ignition Docker container

**URL:** <https://forum.inductiveautomation.com/t/git-functions-designer-save-from-ignition-docker-container/57006>\
**Category:** Ignition\
**Tags:** ignition81, docker\
**Created:** [March 9, 2022, 9:20am UTC](https://forum.inductiveautomation.com/t/git-functions-designer-save-from-ignition-docker-container/57006 "2022-03-09T09:20:05Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![kcollins](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kcollins/32/19646_2.png) [@kcollins](https://forum.inductiveautomation.com/u/kcollins)\
**Post date:** [March 9, 2022, 3:37pm UTC](https://forum.inductiveautomation.com/t/git-functions-designer-save-from-ignition-docker-container/57006/4 "2022-03-09T15:37:42Z")

</div>

This post has an example of extending the "entrypoint" functionality of the container through the use of a derived image:

> [@Specifying Modules on Gateway Docker Compose](https://forum.inductiveautomation.com/t/specifying-modules-on-gateway-docker-compose/50361/3):
>
> @Kevin.Herron beat me to it. We’ve chosen not to implement the solution used by kcollins/ignition image since even it has some nuance that we’d like to be a little cleaner for the official image (regarding managing modules from the gateway webpage being one aspect that comes to mind). That is the reason it is still “incubating”–we want to make sure we get this behavior right and ensure that all aspects work smoothly. The good news is that if you don’t want to wait, you can customize via a der…

If you just need to ensure additional packages are baked into the image, a `Dockerfile` like below would probably suffice (since the upstream uses Ubuntu, we'll be using `apt` as the package manager):

```Dockerfile
ARG IGNITION_VERSION="8.1.15"
FROM inductiveautomation/ignition:${IGNITION_VERSION}

RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
        git && \
    rm -rf /var/lib/apt/lists/*

```

Let me know if you need help building a derived image!

---

_[View the full topic](https://forum.inductiveautomation.com/t/git-functions-designer-save-from-ignition-docker-container/57006)._