mirror of
https://github.com/kata-containers/kata-containers.git
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9c6ed93f80
The CLI being the implementation of the OCI specification, and the hooks being OCI specific, it makes sense to move the handling of any OCI hooks to the CLI level. This changes allows the Kata API to become OCI agnostic. Fixes #599 Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
113 lines
2.6 KiB
Go
113 lines
2.6 KiB
Go
// Copyright (c) 2014,2015,2016 Docker, Inc.
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// Copyright (c) 2017 Intel Corporation
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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package main
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import (
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"context"
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"fmt"
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vc "github.com/kata-containers/runtime/virtcontainers"
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vcAnnot "github.com/kata-containers/runtime/virtcontainers/pkg/annotations"
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"github.com/kata-containers/runtime/virtcontainers/pkg/oci"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli"
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)
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var startCLICommand = cli.Command{
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Name: "start",
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Usage: "executes the user defined process in a created container",
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ArgsUsage: `<container-id> [container-id...]
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<container-id> is your name for the instance of the container that you
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are starting. The name you provide for the container instance must be
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unique on your host.`,
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Description: `The start command executes the user defined process in a created container .`,
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Action: func(context *cli.Context) error {
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ctx, err := cliContextToContext(context)
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if err != nil {
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return err
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}
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args := context.Args()
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if args.Present() == false {
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return fmt.Errorf("Missing container ID, should at least provide one")
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}
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for _, cID := range []string(args) {
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if _, err := start(ctx, cID); err != nil {
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return err
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}
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}
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return nil
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},
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}
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func start(ctx context.Context, containerID string) (vc.VCSandbox, error) {
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span, _ := trace(ctx, "start")
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defer span.Finish()
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kataLog = kataLog.WithField("container", containerID)
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setExternalLoggers(ctx, kataLog)
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span.SetTag("container", containerID)
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// Checks the MUST and MUST NOT from OCI runtime specification
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status, sandboxID, err := getExistingContainerInfo(ctx, containerID)
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if err != nil {
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return nil, err
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}
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containerID = status.ID
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kataLog = kataLog.WithFields(logrus.Fields{
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"container": containerID,
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"sandbox": sandboxID,
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})
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setExternalLoggers(ctx, kataLog)
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span.SetTag("container", containerID)
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span.SetTag("sandbox", sandboxID)
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containerType, err := oci.GetContainerType(status.Annotations)
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if err != nil {
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return nil, err
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}
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ociSpec, err := oci.GetOCIConfig(status)
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if err != nil {
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return nil, err
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}
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var sandbox vc.VCSandbox
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if containerType.IsSandbox() {
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s, err := vci.StartSandbox(ctx, sandboxID)
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if err != nil {
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return nil, err
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}
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sandbox = s
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} else {
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c, err := vci.StartContainer(ctx, sandboxID, containerID)
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if err != nil {
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return nil, err
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}
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sandbox = c.Sandbox()
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}
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// Run post-start OCI hooks.
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err = enterNetNS(sandbox.GetNetNs(), func() error {
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return postStartHooks(ctx, ociSpec, sandboxID, status.Annotations[vcAnnot.BundlePathKey])
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})
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if err != nil {
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return nil, err
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}
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return sandbox, nil
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}
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