红帽全球峰会17.4. Copying container images to or from the host
Skopeo, Buildah, and Podman share the same local container-image storage. If you want to copy containers to or from the host container storage, you need to mount it into the Skopeo container.
注意
The path to the host container storage differs between root (/var/lib/containers/storage) and non-root users ($HOME/.local/share/containers/storage).
Prerequisites
-
The
container-toolsmeta-package is installed.
Procedure
Copy the
registry.access.redhat.com/ubi10/ubiimage into your local container storage:$ podman run --privileged --rm -v $HOME/.local/share/containers/storage:/var/lib/containers/storage \ registry.redhat.io/rhel10/skopeo skopeo copy \ docker://registry.access.redhat.com/ubi10/ubi containers-storage:registry.access.redhat.com/ubi10/ubi-
The
--privilegedoption disables all security mechanisms. Red Hat recommends only using this option in trusted environments. To avoid disabling security mechanisms, export the images to a tarball or any other path-based image transport and mount them in the Skopeo container:
-
$ podman save --format oci-archive -o oci.tar $IMAGE -
$ podman run --rm -v oci.tar:/oci.tar registry.redhat.io/rhel10/skopeo copy oci-archive:/oci.tar $DESTINATION
-
-
The
Optional: List images in local storage:
$ podman images REPOSITORY TAG IMAGE ID CREATED SIZE registry.access.redhat.com/ubi10/ubi latest ecbc6f53bba0 8 weeks ago 211 MB
'%20d='M201.5%20305.5c-13.8%200-24.9-11.1-24.9-24.6%200-13.8%2011.1-24.9%2024.9-24.9%2013.6%200%2024.6%2011.1%2024.6%2024.9%200%2013.6-11.1%2024.6-24.6%2024.6zM504%20256c0%20137-111%20248-248%20248S8%20393%208%20256%20119%208%20256%208s248%20111%20248%20248zm-132.3-41.2c-9.4%200-17.7%203.9-23.8%2010-22.4-15.5-52.6-25.5-86.1-26.6l17.4-78.3%2055.4%2012.5c0%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.3%2024.9-24.9s-11.1-24.9-24.9-24.9c-9.7%200-18%205.8-22.1%2013.8l-61.2-13.6c-3-.8-6.1%201.4-6.9%204.4l-19.1%2086.4c-33.2%201.4-63.1%2011.3-85.5%2026.8-6.1-6.4-14.7-10.2-24.1-10.2-34.9%200-46.3%2046.9-14.4%2062.8-1.1%205-1.7%2010.2-1.7%2015.5%200%2052.6%2059.2%2095.2%20132%2095.2%2073.1%200%20132.3-42.6%20132.3-95.2%200-5.3-.6-10.8-1.9-15.8%2031.3-16%2019.8-62.5-14.9-62.5zM302.8%20331c-18.2%2018.2-76.1%2017.9-93.6%200-2.2-2.2-6.1-2.2-8.3%200-2.5%202.5-2.5%206.4%200%208.6%2022.8%2022.8%2087.3%2022.8%20110.2%200%202.5-2.2%202.5-6.1%200-8.6-2.2-2.2-6.1-2.2-8.3%200zm7.7-75c-13.6%200-24.6%2011.1-24.6%2024.9%200%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.1%2024.9-24.6%200-13.8-11-24.9-24.9-24.9z'/%3e%3c/svg%3e){kind=small}