mirror of
https://github.com/podman-container-tools/podman.git
synced 2026-09-10 01:27:54 +00:00
33944cefe7
[NO TESTS NEEDED] This commit cleans up two issues: * Most commands support all EngineModes so default to that. Let outlayers declare their intent. * Use cobra.Annotations to set supported EngineMode. This simplies instantiating commands as there is now one method to communicate a commands requirements rather than two. * Combined aliased commands into one file * Fixed aliased commands where Args field did not match * Updated examples in README.md for writing commands * Remove redundant flag DisableFlagsInUseLine in cobra.Command initialization. Signed-off-by: Jhon Honce <jhonce@redhat.com>
54 lines
1.7 KiB
Go
54 lines
1.7 KiB
Go
package system
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import (
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"os"
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"github.com/containers/common/pkg/completion"
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"github.com/containers/podman/v3/cmd/podman/registry"
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"github.com/containers/podman/v3/pkg/domain/entities"
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"github.com/containers/podman/v3/pkg/rootless"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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)
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var (
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unshareOptions = entities.SystemUnshareOptions{}
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unshareDescription = "Runs a command in a modified user namespace."
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unshareCommand = &cobra.Command{
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Annotations: map[string]string{registry.EngineMode: registry.ABIMode},
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Use: "unshare [options] [COMMAND [ARG...]]",
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Short: "Run a command in a modified user namespace",
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Long: unshareDescription,
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RunE: unshare,
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ValidArgsFunction: completion.AutocompleteDefault,
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Example: `podman unshare id
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podman unshare cat /proc/self/uid_map,
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podman unshare podman-script.sh`,
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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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Command: unshareCommand,
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})
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flags := unshareCommand.Flags()
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flags.SetInterspersed(false)
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flags.BoolVar(&unshareOptions.RootlessCNI, "rootless-cni", false, "Join the rootless network namespace used for CNI networking")
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}
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func unshare(cmd *cobra.Command, args []string) error {
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if isRootless := rootless.IsRootless(); !isRootless {
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return errors.Errorf("please use unshare with rootless")
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}
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// exec the specified command, if there is one
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if len(args) < 1 {
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// try to exec the shell, if one's set
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shell, shellSet := os.LookupEnv("SHELL")
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if !shellSet {
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return errors.Errorf("no command specified and no $SHELL specified")
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}
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args = []string{shell}
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}
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return registry.ContainerEngine().Unshare(registry.Context(), args, unshareOptions)
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}
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