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https://github.com/podman-container-tools/podman.git
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52371057cd
in cases where commands require input and we dont provide it, we often would segv. This can be attributed in many cases to the subcommand not picked up the cobra Args attribute or neither had them. Signed-off-by: baude <bbaude@redhat.com>
85 lines
2.8 KiB
Go
85 lines
2.8 KiB
Go
package containers
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import (
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"os"
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"github.com/containers/libpod/cmd/podman/registry"
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"github.com/containers/libpod/cmd/podman/validate"
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"github.com/containers/libpod/pkg/domain/entities"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"github.com/spf13/pflag"
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)
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var (
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attachDescription = "The podman attach command allows you to attach to a running container using the container's ID or name, either to view its ongoing output or to control it interactively."
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attachCommand = &cobra.Command{
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Use: "attach [flags] CONTAINER",
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Short: "Attach to a running container",
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Long: attachDescription,
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RunE: attach,
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Args: validate.IdOrLatestArgs,
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Example: `podman attach ctrID
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podman attach 1234
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podman attach --no-stdin foobar`,
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}
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containerAttachCommand = &cobra.Command{
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Use: attachCommand.Use,
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Short: attachCommand.Short,
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Long: attachCommand.Long,
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RunE: attachCommand.RunE,
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Args: validate.IdOrLatestArgs,
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Example: `podman container attach ctrID
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podman container attach 1234
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podman container attach --no-stdin foobar`,
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}
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)
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var (
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attachOpts entities.AttachOptions
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)
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func attachFlags(flags *pflag.FlagSet) {
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flags.StringVar(&attachOpts.DetachKeys, "detach-keys", containerConfig.DetachKeys(), "Select the key sequence for detaching a container. Format is a single character `[a-Z]` or a comma separated sequence of `ctrl-<value>`, where `<value>` is one of: `a-z`, `@`, `^`, `[`, `\\`, `]`, `^` or `_`")
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flags.BoolVar(&attachOpts.NoStdin, "no-stdin", false, "Do not attach STDIN. The default is false")
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flags.BoolVar(&attachOpts.SigProxy, "sig-proxy", true, "Proxy received signals to the process")
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flags.BoolVarP(&attachOpts.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
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if registry.IsRemote() {
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_ = flags.MarkHidden("latest")
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}
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}
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func init() {
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registry.Commands = append(registry.Commands, registry.CliCommand{
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Mode: []entities.EngineMode{entities.ABIMode},
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Command: attachCommand,
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})
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flags := attachCommand.Flags()
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attachFlags(flags)
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registry.Commands = append(registry.Commands, registry.CliCommand{
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Mode: []entities.EngineMode{entities.ABIMode},
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Command: containerAttachCommand,
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Parent: containerCmd,
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})
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containerAttachFlags := containerAttachCommand.Flags()
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attachFlags(containerAttachFlags)
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}
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func attach(cmd *cobra.Command, args []string) error {
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if len(args) > 1 || (len(args) == 0 && !attachOpts.Latest) {
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return errors.Errorf("attach requires the name or id of one running container or the latest flag")
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}
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var name string
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if len(args) > 0 {
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name = args[0]
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}
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attachOpts.Stdin = os.Stdin
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if attachOpts.NoStdin {
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attachOpts.Stdin = nil
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}
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attachOpts.Stdout = os.Stdout
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attachOpts.Stderr = os.Stderr
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return registry.ContainerEngine().ContainerAttach(registry.GetContext(), name, attachOpts)
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}
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