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Diffstat (limited to 'runsc/cmd/run.go')
-rw-r--r-- | runsc/cmd/run.go | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/runsc/cmd/run.go b/runsc/cmd/run.go new file mode 100644 index 000000000..cf41581ad --- /dev/null +++ b/runsc/cmd/run.go @@ -0,0 +1,100 @@ +// 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" + "syscall" + + "github.com/google/subcommands" + "gvisor.dev/gvisor/runsc/boot" + "gvisor.dev/gvisor/runsc/container" + "gvisor.dev/gvisor/runsc/flag" + "gvisor.dev/gvisor/runsc/specutils" +) + +// Run implements subcommands.Command for the "run" command. +type Run struct { + // Run flags are a super-set of those for Create. + Create + + // detach indicates that runsc has to start a process and exit without waiting it. + detach bool +} + +// Name implements subcommands.Command.Name. +func (*Run) Name() string { + return "run" +} + +// Synopsis implements subcommands.Command.Synopsis. +func (*Run) Synopsis() string { + return "create and run a secure container" +} + +// Usage implements subcommands.Command.Usage. +func (*Run) Usage() string { + return `run [flags] <container id> - create and run a secure container. +` +} + +// SetFlags implements subcommands.Command.SetFlags. +func (r *Run) SetFlags(f *flag.FlagSet) { + f.BoolVar(&r.detach, "detach", false, "detach from the container's process") + r.Create.SetFlags(f) +} + +// Execute implements subcommands.Command.Execute. +func (r *Run) 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].(*boot.Config) + waitStatus := args[1].(*syscall.WaitStatus) + + if conf.Rootless { + return Errorf("Rootless mode not supported with %q", r.Name()) + } + + bundleDir := r.bundleDir + if bundleDir == "" { + bundleDir = getwdOrDie() + } + spec, err := specutils.ReadSpec(bundleDir) + if err != nil { + return Errorf("reading spec: %v", err) + } + specutils.LogSpec(spec) + + runArgs := container.Args{ + ID: id, + Spec: spec, + BundleDir: bundleDir, + ConsoleSocket: r.consoleSocket, + PIDFile: r.pidFile, + UserLog: r.userLog, + Attached: !r.detach, + } + ws, err := container.Run(conf, runArgs) + if err != nil { + return Errorf("running container: %v", err) + } + + *waitStatus = ws + return subcommands.ExitSuccess +} |