73 lines
2.1 KiB
Go
73 lines
2.1 KiB
Go
// Copyright 2018 The gVisor Authors.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package cmd
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import (
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"context"
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"github.com/google/subcommands"
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"gvisor.dev/gvisor/runsc/config"
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"gvisor.dev/gvisor/runsc/container"
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"gvisor.dev/gvisor/runsc/flag"
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"gvisor.dev/gvisor/runsc/specutils"
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)
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// Start implements subcommands.Command for the "start" command.
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type Start struct{}
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// Name implements subcommands.Command.Name.
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func (*Start) Name() string {
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return "start"
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}
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// Synopsis implements subcommands.Command.Synopsis.
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func (*Start) Synopsis() string {
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return "start a secure container"
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}
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// Usage implements subcommands.Command.Usage.
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func (*Start) Usage() string {
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return `start <container id> - start a secure container.`
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}
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// SetFlags implements subcommands.Command.SetFlags.
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func (*Start) SetFlags(f *flag.FlagSet) {}
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// Execute implements subcommands.Command.Execute.
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func (*Start) Execute(_ context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus {
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if f.NArg() != 1 {
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f.Usage()
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return subcommands.ExitUsageError
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}
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id := f.Arg(0)
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conf := args[0].(*config.Config)
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c, err := container.Load(conf.RootDir, container.FullID{ContainerID: id}, container.LoadOpts{})
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if err != nil {
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Fatalf("loading container: %v", err)
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}
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// Read the spec again here to ensure flag annotations from the spec are
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// applied to "conf".
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if _, err := specutils.ReadSpec(c.BundleDir, conf); err != nil {
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Fatalf("reading spec: %v", err)
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}
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if err := c.Start(conf); err != nil {
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Fatalf("starting container: %v", err)
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}
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return subcommands.ExitSuccess
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}
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