Add support for podman. #317
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marco-c
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Dec 1, 2022
Dockerfile
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| @@ -5,7 +5,8 @@ FROM python:3.10-alpine | |||
| RUN apk add --no-cache img --repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing | |||
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| # Setup other deps | |||
| RUN apk add --no-cache git skopeo docker cargo | |||
| RUN apk add --no-cache git skopeo docker cargo podman cni-plugins \ | |||
| && sed -i 's/^#mount_program =/mount_program =/' /etc/containers/storage.conf | |||
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why is the replacement necessary?
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This forces it to use fuse-overlayfs instead of the kernel module. I did forget to install fuse-overlayfs in the Dockerfile though...
/taskboot # podman pull alpine
Error: 'overlay' is not supported over overlayfs, a mount_program is required: backing file system is unsupported for this graph driver
/taskboot # sed -i 's/^#mount_program/mount_program/' /etc/containers/storage.conf
/taskboot # podman pull alpine
Error: overlay: can't stat program "/usr/bin/fuse-overlayfs": stat /usr/bin/fuse-overlayfs: no such file or directory
/taskboot # apk add fuse-overlayfs
...
/taskboot # podman pull alpine
Resolving "alpine" using unqualified-search registries (/etc/containers/registries.conf)
Trying to pull docker.io/library/alpine:latest...
Getting image source signatures
Copying blob c158987b0551 done
Copying config 49176f190c done
Writing manifest to image destination
Storing signatures
49176f190c7e9cdb51ac85ab6c6d5e4512352218190cd69b08e6fd803ffbf3da
/taskboot #
marco-c
reviewed
Dec 1, 2022
This is a drop-in replacement for docker, although it still requires --privileged like img.
`podman save` archives do not contain index.json, which is compatible with docker but not with oci
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marco-c
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Dec 2, 2022
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This is a drop-in replacement for docker, although it still requires
--privilegedlikeimg.imgis not maintained (see genuinetools/img#348)