diff options
Diffstat (limited to 'runsc/cmd/delete.go')
-rw-r--r-- | runsc/cmd/delete.go | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/runsc/cmd/delete.go b/runsc/cmd/delete.go new file mode 100644 index 000000000..9039723e9 --- /dev/null +++ b/runsc/cmd/delete.go @@ -0,0 +1,87 @@ +// 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" + "fmt" + "os" + + "flag" + "github.com/google/subcommands" + "gvisor.googlesource.com/gvisor/pkg/log" + "gvisor.googlesource.com/gvisor/runsc/boot" + "gvisor.googlesource.com/gvisor/runsc/container" +) + +// Delete implements subcommands.Command for the "delete" command. +type Delete struct { + // force indicates that the container should be terminated if running. + force bool +} + +// Name implements subcommands.Command.Name. +func (*Delete) Name() string { + return "delete" +} + +// Synopsis implements subcommands.Command.Synopsis. +func (*Delete) Synopsis() string { + return "delete resources held by a container" +} + +// Usage implements subcommands.Command.Usage. +func (*Delete) Usage() string { + return `delete [flags] <container ids>` +} + +// SetFlags implements subcommands.Command.SetFlags. +func (d *Delete) SetFlags(f *flag.FlagSet) { + f.BoolVar(&d.force, "force", false, "terminate container if running") +} + +// Execute implements subcommands.Command.Execute. +func (d *Delete) Execute(_ context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus { + if f.NArg() == 0 { + f.Usage() + return subcommands.ExitUsageError + } + + conf := args[0].(*boot.Config) + if err := d.execute(f.Args(), conf); err != nil { + Fatalf("%v", err) + } + return subcommands.ExitSuccess +} + +func (d *Delete) execute(ids []string, conf *boot.Config) error { + for _, id := range ids { + c, err := container.Load(conf.RootDir, id) + if err != nil { + if os.IsNotExist(err) && d.force { + log.Warningf("couldn't find container %q: %v", id, err) + return nil + } + return fmt.Errorf("loading container %q: %v", id, err) + } + if !d.force && c.Status != container.Created && c.Status != container.Stopped { + return fmt.Errorf("cannot delete container that is not stopped without --force flag") + } + if err := c.Destroy(); err != nil { + return fmt.Errorf("destroying container: %v", err) + } + } + return nil +} |