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https://github.com/siderolabs/talos.git
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f56a9d5b96
It runs containers via CRI interface in a pod sandbox. This is the very first version: I tried not to introduce any changes to common runner interface. There should be some CRI-speficic options for the runner (like polling interval, as it doesn't have nice `Wait()` API), plus my plan so far is to use OCI as the common layer for container options, so that we can analyze OCI and translate to CRI (when possible, return errors when option is not implemented). CRI interface doesn't have a concept of 'unpacking' an image, so we probably need to unpack via containerd API (or any other runtime-specific API) by targeting CRI namespace. Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
57 lines
1.6 KiB
Go
57 lines
1.6 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 cri
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import (
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"context"
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"github.com/pkg/errors"
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runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
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)
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// PullImage pulls container image
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func (c *Client) PullImage(ctx context.Context, image *runtimeapi.ImageSpec, sandboxConfig *runtimeapi.PodSandboxConfig) (string, error) {
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resp, err := c.imagesClient.PullImage(ctx, &runtimeapi.PullImageRequest{
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Image: image,
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SandboxConfig: sandboxConfig,
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})
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if err != nil {
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return "", errors.Wrapf(err, "error pulling image %+v", image)
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}
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return resp.ImageRef, nil
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}
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// ListImages lists available images
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func (c *Client) ListImages(ctx context.Context, filter *runtimeapi.ImageFilter) ([]*runtimeapi.Image, error) {
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resp, err := c.imagesClient.ListImages(ctx, &runtimeapi.ListImagesRequest{
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Filter: filter,
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})
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if err != nil {
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return nil, errors.Wrapf(err, "error listing imags")
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}
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return resp.Images, nil
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}
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// ImageStatus returns the status of the image.
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func (c *Client) ImageStatus(ctx context.Context, image *runtimeapi.ImageSpec) (*runtimeapi.Image, error) {
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resp, err := c.imagesClient.ImageStatus(ctx, &runtimeapi.ImageStatusRequest{
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Image: image,
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})
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if err != nil {
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return nil, errors.Wrapf(err, "ImageStatus %q from image service failed", image.Image)
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}
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if resp.Image != nil {
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if resp.Image.Id == "" || resp.Image.Size_ == 0 {
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return nil, errors.Errorf("Id or size of image %q is not set", image.Image)
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}
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}
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return resp.Image, nil
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}
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