# Boot2docker image
**URL:** https://forum.opennebula.io/t/boot2docker-image/3175
**Category:** Product Support
**Created:** [October 25, 2016, 3:00pm UTC](https://forum.opennebula.io/t/boot2docker-image/3175 "2016-10-25T15:00:26Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Yenya](https://forum.opennebula.io/u/Yenya)
#### Post date: [October 25, 2016, 3:00pm UTC](https://forum.opennebula.io/t/boot2docker-image/3175/1 "2016-10-25T15:00:26Z")
Hello, @jmelis et al,
I tried to get a boot2docker appliance from Marketplace, and also to assemble my own image from the [https://github.com/OpenNebula/boot2docker-one/](https://github.com/OpenNebula/boot2docker-one/) github project. How is this system supposed to be used? Is there any documentation for it? I ran into the following problems:
- apparently, there is the “`docker`” user with “`tcuse`r” password, and it is even accessible remotely via SSH. So all users of this appliance are vulnerable to the default password attack!
- the contextualization script overwrites the `/dev/vdb` disk of type “`swap`” and mounts its first partition on `/var/lib/docker`. It should at least attempt to determine (possibly via context variables) which disk can safely be overwriten.
- the contextualization script ignores the `CRYPTED_PASSWORD` and `SSH_KEY` variables.
- I found no way how to tell docker to use HTTP proxy (possibly via context variables)?
Is there any documentation? I am willing to write the code and send pull requests, but I want to ask here first, in case I am overlooking something.
Anyway, it would be nice if marketplace supported other metadata for published appliances (bug tracking, discussion, howtos with supported contextualization features, etc.).
Thanks!
-Yenya
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### Author:  [@Yenya](https://forum.opennebula.io/u/Yenya)
#### Post date: [October 25, 2016, 8:40pm UTC](https://forum.opennebula.io/t/boot2docker-image/3175/2 "2016-10-25T20:40:31Z")
FWIW, I have implemented some of the above (except the disk partitioning, I have yet to understand the inner workings of boot2docker correctly wrt. partitioning). I made a pull request on Github:
[https://github.com/OpenNebula/boot2docker-one/pull/1](https://github.com/OpenNebula/boot2docker-one/pull/1)
Should I also upload the ISO image to Marketplace? I would guess images published by OpenNebula staff would be more trusted.