Docker Rootless with cpk build

[amoll-0]

Hey there,

I am trying to get docker rootless working with cpk but am getting the error below when trying to build:

cpk| INFO : CPK - Code Packaging toolKit - v0.5.1
cpk| INFO : Project workspace: /home/aiden/nlimb2

Project:
Name: nlimb2
Tag: master
Version: unreleased
Template:
Name: basic
Version: 1.0
Index: Clean
Path: /home/aiden/nlimb2
URL: (none)
Adapters: fs project.cpk git

---

cpk| INFO : Retrieving info about Docker endpoint...

Docker Endpoint:
Machine: from-environment
Hostname: gpu
Operating System: Ubuntu 20.04.5 LTS
Kernel Version: 5.4.0-135-generic
OSType: linux
Architecture: x86_64
Total Memory: 376.54 GB
CPUs: 1

cpk| INFO : Parameter arch not given, will resolve it from the endpoint.
cpk| INFO : Parameter arch automatically set to amd64.
cpk| INFO : Building an image for amd64 on amd64.
cpk| INFO : Working with an amd64 image on amd64. Multiarch not needed!
cpk| INFO : Found an image with the same name. Using it as cache source.

ERRO[2023-01-24T11:44:51.654773017+11:00] Handler for POST /v1.41/build returned error: Error processing tar file(exit status 1): lchown /.git: invalid argument
cpk| ERROR : An error occurred while building the project image:
: 500 Server Error for http+docker://localhost/v1.41/build?t=docker.io%2Fcbschaff%2Fnlimb2%3Amaster-amd64&q=False&nocache=False&rm=True&forcerm=False&pull=False&buildargs=%7B%22ARCH%22%3A+%22amd64%22%2C+%22NAME%22%3A+%22nlimb2%22%2C+%22DESCRIPTION%22%3A+%22development+repo+for+nliimb%22%2C+%22ORGANIZATION%22%3A+%22cbschaff%22%2C+%22MAINTAINER%22%3A+%22Chip+Schaff%22%2C+%22NCPUS%22%3A+%221%22%7D&labels=%7B%22cpk.label.project.cbschaff.nlimb2.code.vcs%22%3A+%22git%22%2C+%22cpk.label.project.cbschaff.nlimb2.code.version.tag%22%3A+%22master%22%2C+%22cpk.label.project.cbschaff.nlimb2.code.version.head%22%3A+%22ND%22%2C+%22cpk.label.project.cbschaff.nlimb2.code.version.closest%22%3A+%22ND%22%2C+%22cpk.label.project.cbschaff.nlimb2.code.version.sha%22%3A+%22a7d2c8363b53f690a70611532c666bcb6a0ac039%22%2C+%22cpk.label.project.cbschaff.nlimb2.code.vcs.repository%22%3A+%22nlimb2%22%2C+%22cpk.label.project.cbschaff.nlimb2.code.vcs.branch%22%3A+%22master%22%2C+%22cpk.label.project.cbschaff.nlimb2.code.vcs.url%22%3A+%22https%3A%2F%2Fgithub.com%2Fcbschaff%2Fnlimb2%22%2C+%22cpk.label.project.cbschaff.nlimb2.template.name%22%3A+%22basic%22%2C+%22cpk.label.project.cbschaff.nlimb2.template.version%22%3A+%221.0%22%2C+%22cpk.label.project.cbschaff.nlimb2.template.url%22%3A+%22https%3A%2F%2Fgithub.com%2Fafdaniele%2Fcpk-template-full%22%2C+%22cpk.label.project.cbschaff.nlimb2.code.launchers%22%3A+%22viz%2Cdefault%2Crecord%2Ctrain%2Cxorg%22%2C+%22cpk.label.project.cbschaff.nlimb2.time%22%3A+%22ND%22%7D&platform=linux%2Famd64: Internal Server Error ("Error processing tar file(exit status 1): lchown /.git: invalid argument")

I believe this may be due to the set default machine environment:

include/cpk/utils/docker.py
DEFAULT_MACHINE = "unix:///var/run/docker.sock"

Is there a way to update the default machine to stop using docker.sock and our socket instead?

When we run docker rootless it uses a different docker socket:

/var/tmp/xdg_runtime_dir_169337/docker.sock