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https://github.com/aljazceru/kata-containers.git
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bdd5c66fc5
Add vm factory support per design in the VM Factory plugin section. The vm factory controls how a new vm is created: 1. direct: vm is created directly 2. template: vm is created via vm template. A template vm is pre-created and saved. Later vm is just a clone of the template vm so that they readonly share a portion of initial memory (including kernel, initramfs and the kata agent). CPU and memory are hot plugged when necessary. 3. cache: vm is created via vm caches. A set of cached vm are pre-created and maintained alive. New vms are created by just picking a cached vm. CPU and memory are hot plugged when necessary. Fixes: #303 Signed-off-by: Peng Tao <bergwolf@gmail.com>
47 lines
890 B
Go
47 lines
890 B
Go
// Copyright (c) 2018 HyperHQ Inc.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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// direct implements base vm factory without vm templating.
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package direct
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import (
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vc "github.com/kata-containers/runtime/virtcontainers"
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"github.com/kata-containers/runtime/virtcontainers/factory/base"
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)
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type direct struct {
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config vc.VMConfig
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}
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// New returns a new direct vm factory.
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func New(config vc.VMConfig) base.FactoryBase {
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return &direct{config}
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}
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// Config returns the direct factory's configuration.
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func (d *direct) Config() vc.VMConfig {
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return d.config
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}
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// GetBaseVM create a new VM directly.
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func (d *direct) GetBaseVM() (*vc.VM, error) {
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vm, err := vc.NewVM(d.config)
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if err != nil {
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return nil, err
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}
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err = vm.Pause()
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if err != nil {
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vm.Stop()
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return nil, err
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}
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return vm, nil
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}
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// CloseFactory closes the direct vm factory.
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func (d *direct) CloseFactory() {
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}
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