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https://github.com/k3s-io/k3s.git
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de59b6327c
Add support for the "nix" snapshotter, which enables running container images built with nix2container. Nix images reference store paths directly, avoiding layer tarballs and enabling deduplication through the nix store. Changes: - Register nix-snapshotter as a builtin containerd plugin - Add NixSupported() validation (checks nix-store is in PATH) - Configure nix-snapshotter image service proxy in V2/V3 templates with containerd_address for CRI image operations - Add Transfer service unpack_config with differ=walking for multi-arch support - Use containerd state dir for socket path (rootless compatible) - Disable NRI in rootless mode to prevent bind failures Usage: k3s server --snapshotter nix Signed-off-by: Ada <ada@6bit.com> Co-Authored-By: Joshua Perry <josh@6bit.com> Signed-off-by: Ada <ada@6bit.com>
32 lines
824 B
Go
32 lines
824 B
Go
//go:build linux
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package containerd
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import (
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"errors"
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"os/exec"
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"github.com/containerd/containerd/v2/plugins/snapshots/overlay/overlayutils"
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fuseoverlayfs "github.com/containerd/fuse-overlayfs-snapshotter/v2"
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stargz "github.com/containerd/stargz-snapshotter/service"
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"github.com/pdtpartners/nix-snapshotter/pkg/nix"
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)
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func OverlaySupported(root string) error {
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return overlayutils.Supported(root)
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}
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func FuseoverlayfsSupported(root string) error {
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return fuseoverlayfs.Supported(root)
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}
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func StargzSupported(root string) error {
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return stargz.Supported(root)
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}
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func NixSupported(root string) error {
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if _, err := exec.LookPath("nix-store"); err != nil {
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return errors.New("nix-store not found in PATH: install nix (https://nixos.org/download) to use the nix snapshotter")
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}
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return nix.Supported(root)
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}
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