84 lines
2.2 KiB
Go
84 lines
2.2 KiB
Go
package containerd
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import (
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"fmt"
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"github.com/containerd/containerd"
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"github.com/containerd/containerd/cio"
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"github.com/containerd/containerd/oci"
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)
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func (d *Driver) isContainerdRunning() (bool, error) {
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return d.client.IsServing(d.ctxContainerd)
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}
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func (d *Driver) getContainerdVersion() (containerd.Version, error) {
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return d.client.Version(d.ctxContainerd)
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}
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func (d *Driver) pullImage(imageName string) (containerd.Image, error) {
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return d.client.Pull(d.ctxContainerd, imageName, containerd.WithPullUnpack)
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}
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func (d *Driver) createContainer(image containerd.Image, containerName, containerSnapshotName, containerdRuntime string, env []string, config *TaskConfig) (containerd.Container, error) {
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if config.Command == "" && len(config.Args) > 0 {
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return nil, fmt.Errorf("Command is empty. Cannot set --args without --command.")
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}
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var args []string
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if config.Command != "" {
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args = append(args, config.Command)
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}
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if len(config.Args) > 0 {
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args = append(args, config.Args...)
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}
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var opts []oci.SpecOpts
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opts = append(opts, oci.WithImageConfigArgs(image, args))
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if config.Privileged {
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opts = append(opts, oci.WithPrivileged)
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}
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if config.ReadOnlyRootfs {
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opts = append(opts, oci.WithRootFSReadonly())
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}
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if len(config.CapAdd) > 0 {
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opts = append(opts, oci.WithAddedCapabilities(config.CapAdd))
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}
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if len(config.CapDrop) > 0 {
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opts = append(opts, oci.WithDroppedCapabilities(config.CapDrop))
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}
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opts = append(opts, oci.WithEnv(env))
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// Add linux devices into the container.
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for _, device := range config.Devices {
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opts = append(opts, oci.WithLinuxDevice(device, "rwm"))
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}
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return d.client.NewContainer(
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d.ctxContainerd,
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containerName,
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containerd.WithRuntime(containerdRuntime, nil),
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containerd.WithNewSnapshot(containerSnapshotName, image),
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containerd.WithNewSpec(opts...),
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)
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}
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func (d *Driver) loadContainer(id string) (containerd.Container, error) {
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return d.client.LoadContainer(d.ctxContainerd, id)
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}
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func (d *Driver) createTask(container containerd.Container) (containerd.Task, error) {
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return container.NewTask(d.ctxContainerd, cio.NewCreator(cio.WithStdio))
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}
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func (d *Driver) getTask(container containerd.Container) (containerd.Task, error) {
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return container.Task(d.ctxContainerd, cio.Load)
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}
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