// Copyright 2018 The gVisor Authors. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package cmd import ( "context" "github.com/google/subcommands" "gvisor.dev/gvisor/runsc/config" "gvisor.dev/gvisor/runsc/container" "gvisor.dev/gvisor/runsc/flag" "gvisor.dev/gvisor/runsc/specutils" ) // Start implements subcommands.Command for the "start" command. type Start struct{} // Name implements subcommands.Command.Name. func (*Start) Name() string { return "start" } // Synopsis implements subcommands.Command.Synopsis. func (*Start) Synopsis() string { return "start a secure container" } // Usage implements subcommands.Command.Usage. func (*Start) Usage() string { return `start <container id> - start a secure container.` } // SetFlags implements subcommands.Command.SetFlags. func (*Start) SetFlags(f *flag.FlagSet) {} // Execute implements subcommands.Command.Execute. func (*Start) Execute(_ context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus { if f.NArg() != 1 { f.Usage() return subcommands.ExitUsageError } id := f.Arg(0) conf := args[0].(*config.Config) c, err := container.Load(conf.RootDir, container.FullID{ContainerID: id}, container.LoadOpts{}) if err != nil { Fatalf("loading container: %v", err) } // Read the spec again here to ensure flag annotations from the spec are // applied to "conf". if _, err := specutils.ReadSpec(c.BundleDir, conf); err != nil { Fatalf("reading spec: %v", err) } if err := c.Start(conf); err != nil { Fatalf("starting container: %v", err) } return subcommands.ExitSuccess }