docker / docker/docker-install
Rootless installer doesn't handle kernels without module support
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- Shell
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Description
I'm trying to install docker rootless on a Chromebook.
The Linux environment runs inside an lxd container, itself inside a VM running a hardened kernel without module support.
See https://chromium.googlesource.com/chromiumos/docs/+/master/containers_and_vms.md for more info.
The installer script checks for iptables support by checking if the module is loaded. This doesn't work on chromebooks because modules aren't available. However iptables is there and works (at least when run as root in the lxd container).
PS: regular docker runs perfectly fine, so I'll keep using that for the time being.
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the installer script's iptables support check and compare its module-loaded assumption with the reported Chromebook LXD environment. Verify that iptables works when kernel modules are unavailable; done means rootless installation no longer rejects an environment where iptables is present and usable.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- docker, shell
- Domain
- devops
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100