mirror of
https://github.com/kubernetes-sigs/kind.git
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65 lines
1.8 KiB
Go
65 lines
1.8 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package nodeimage
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import (
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"io"
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"sigs.k8s.io/kind/pkg/exec"
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)
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type containerdImporter struct {
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containerCmder exec.Cmder
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}
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func newContainerdImporter(containerCmder exec.Cmder) *containerdImporter {
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return &containerdImporter{
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containerCmder: containerCmder,
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}
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}
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func (c *containerdImporter) Prepare() error {
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if err := c.containerCmder.Command(
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"bash", "-c", "nohup containerd > /dev/null 2>&1 &",
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).Run(); err != nil {
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return err
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}
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// TODO(bentheelder): some healthcheck?
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return nil
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}
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func (c *containerdImporter) End() error {
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return c.containerCmder.Command("pkill", "containerd").Run()
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}
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func (c *containerdImporter) Pull(image, platform string) error {
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return c.containerCmder.Command(
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"ctr", "--namespace=k8s.io", "content", "fetch", "--platform="+platform, image,
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).SetStdout(io.Discard).SetStderr(io.Discard).Run()
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}
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func (c *containerdImporter) LoadCommand() exec.Cmd {
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return c.containerCmder.Command(
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// TODO: ideally we do not need this in the future. we have fixed at least one image
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"ctr", "--namespace=k8s.io", "images", "import", "--all-platforms", "--no-unpack", "--digests", "-",
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)
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}
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func (c *containerdImporter) ListImported() ([]string, error) {
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return exec.OutputLines(c.containerCmder.Command("ctr", "--namespace=k8s.io", "images", "list", "-q"))
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}
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