101 lines
2.5 KiB
Go
101 lines
2.5 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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"syscall"
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"flag"
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"github.com/google/subcommands"
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"gvisor.dev/gvisor/runsc/boot"
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"gvisor.dev/gvisor/runsc/container"
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"gvisor.dev/gvisor/runsc/specutils"
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)
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// Run implements subcommands.Command for the "run" command.
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type Run struct {
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// Run flags are a super-set of those for Create.
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Create
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// detach indicates that runsc has to start a process and exit without waiting it.
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detach bool
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}
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// Name implements subcommands.Command.Name.
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func (*Run) Name() string {
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return "run"
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}
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// Synopsis implements subcommands.Command.Synopsis.
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func (*Run) Synopsis() string {
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return "create and run a secure container"
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}
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// Usage implements subcommands.Command.Usage.
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func (*Run) Usage() string {
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return `run [flags] <container id> - create and run a secure container.
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`
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}
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// SetFlags implements subcommands.Command.SetFlags.
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func (r *Run) SetFlags(f *flag.FlagSet) {
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f.BoolVar(&r.detach, "detach", false, "detach from the container's process")
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r.Create.SetFlags(f)
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}
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// Execute implements subcommands.Command.Execute.
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func (r *Run) 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].(*boot.Config)
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waitStatus := args[1].(*syscall.WaitStatus)
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if conf.Rootless {
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return Errorf("Rootless mode not supported with %q", r.Name())
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}
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bundleDir := r.bundleDir
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if bundleDir == "" {
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bundleDir = getwdOrDie()
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}
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spec, err := specutils.ReadSpec(bundleDir)
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if err != nil {
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return Errorf("reading spec: %v", err)
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}
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specutils.LogSpec(spec)
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runArgs := container.Args{
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ID: id,
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Spec: spec,
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BundleDir: bundleDir,
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ConsoleSocket: r.consoleSocket,
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PIDFile: r.pidFile,
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UserLog: r.userLog,
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Attached: !r.detach,
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}
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ws, err := container.Run(conf, runArgs)
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if err != nil {
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return Errorf("running container: %v", err)
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}
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*waitStatus = ws
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return subcommands.ExitSuccess
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}
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