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b3c3ef29bd
Fixes #4815 This implements the following steps: * machine configuration updates * pulling and unpacking system extension images * validating, listing system extensions * re-packing system extensions * preserving installed extensions in `/etc/extensions.yaml` Once extension is enabled, raw information can be queried with: ``` $ talosctl -n 172.20.0.2 cat /etc/extensions.yaml layers: - image: 000.ghcr.io-smira-gvisor-c927b54-dirty.sqsh metadata: name: gvisor version: 20220117.0-v1.0.0 author: Andrew Rynhard description: | This system extension provides gVisor using containerd's runtime handler. compatibility: talos: version: '> v0.15.0-alpha.1' ``` This was tested with the `gvisor` system extension. Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
48 lines
1.0 KiB
Go
48 lines
1.0 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package extensions
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import (
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"fmt"
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"os"
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"path/filepath"
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"sort"
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)
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// List prepared unpacked extensions under rootPath.
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func List(rootPath string) ([]*Extension, error) {
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items, err := os.ReadDir(rootPath)
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if err != nil {
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if os.IsNotExist(err) {
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return nil, nil
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}
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return nil, err
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}
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if len(items) == 0 {
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return nil, nil
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}
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sort.Slice(items, func(i, j int) bool { return items[i].Name() < items[j].Name() })
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result := make([]*Extension, 0, len(items))
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for _, item := range items {
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if !item.IsDir() {
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return nil, fmt.Errorf("unexpected non-directory entry: %q", item.Name())
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}
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ext, err := Load(filepath.Join(rootPath, item.Name()))
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if err != nil {
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return nil, fmt.Errorf("error loading extension %s: %w", item.Name(), err)
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}
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result = append(result, ext)
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}
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return result, nil
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}
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