skopeo does not work against docker daemons at version 25.0.0 or higher

[bainsy88]

This is a result of the following issue in contianers/image - containers/image#2259.

However I thought it would be worth a separate issue on skopeo so that we can track pulling in a new version of containers image when a fix has been made.

[mtrmac]

Thanks! Let’s discuss the details in containers/image#2260 .

[mtrmac]

A c/image fix was merged, and it will be included in Skopeo before tagging a new release.

In the meantime, a possible workaround:

# cat /etc/systemd/system/docker.service.d/version.conf 
[Service]
Environment=DOCKER_MIN_API_VERSION=1.22

[TomSweeneyRedHat]

Just noting that containers/image#2260 has merged. Once the latest c/image (> v5.29.1) is vendored here, we can close this Issue

[mtrmac]

This fix was released in Skopeo 1.14.2.

[mirekphd]

DOCKER_MIN_API_VERSION

Here is the complete procedure of reconfiguring the Docker daemon to make it see this env variable:

$ sudo mkdir -p /etc/systemd/system/docker.service.d
$ printf "[Service] \n\nEnvironment=DOCKER_MIN_API_VERSION=1.22\n" | sudo tee /etc/systemd/system/docker.service.d/version.conf
$ sudo systemctl daemon-reload && sudo systemctl restart docker