mirror of
https://github.com/podman-container-tools/podman.git
synced 2026-08-06 00:45:43 +00:00
259c79963f
Firstly, reset is now managed by the runtime itself as a part of initialization. This ensures that it can be used even with runtimes that would otherwise fail to be created - most notably, when the user has changed a core path (runroot/root/tmpdir/staticdir). Secondly, we now attempt a best-effort removal even if the store completely fails to be configured. Third, we now hold the alive lock for the entire reset operation. This ensures that no other Podman process can start while we are running a system reset, and removes any possibility of a race where a user tries to create containers or pull images while we are trying to perform a reset. [NO NEW TESTS NEEDED] we do not test reset last I checked. Fixes #9075 Signed-off-by: Matthew Heon <mheon@redhat.com>
107 lines
3.2 KiB
Go
107 lines
3.2 KiB
Go
//go:build !remote
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// +build !remote
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package system
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import (
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"bufio"
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"fmt"
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"os"
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"strings"
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"github.com/containers/common/pkg/completion"
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"github.com/containers/podman/v4/cmd/podman/registry"
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"github.com/containers/podman/v4/cmd/podman/validate"
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"github.com/containers/podman/v4/libpod/define"
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"github.com/containers/podman/v4/pkg/domain/entities"
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"github.com/containers/podman/v4/pkg/domain/infra"
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"github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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)
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var (
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systemResetDescription = `Reset podman storage back to default state"
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All containers will be stopped and removed, and all images, volumes, networks and container content will be removed.
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`
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systemResetCommand = &cobra.Command{
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Annotations: map[string]string{registry.EngineMode: registry.ABIMode},
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Use: "reset [options]",
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Args: validate.NoArgs,
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Short: "Reset podman storage",
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Long: systemResetDescription,
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Run: reset,
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ValidArgsFunction: completion.AutocompleteNone,
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}
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forceFlag bool
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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: systemResetCommand,
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Parent: systemCmd,
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})
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flags := systemResetCommand.Flags()
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flags.BoolVarP(&forceFlag, "force", "f", false, "Do not prompt for confirmation")
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}
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func reset(cmd *cobra.Command, args []string) {
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// Get all the external containers in use
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listCtn, _ := registry.ContainerEngine().ContainerListExternal(registry.Context())
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listCtnIds := make([]string, 0, len(listCtn))
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for _, externalCtn := range listCtn {
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listCtnIds = append(listCtnIds, externalCtn.ID)
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}
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// Prompt for confirmation if --force is not set
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if !forceFlag {
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reader := bufio.NewReader(os.Stdin)
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fmt.Println(`WARNING! This will remove:
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- all containers
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- all pods
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- all images
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- all networks
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- all build cache
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- all machines`)
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if len(listCtn) > 0 {
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fmt.Println(`WARNING! The following external containers will be purged:`)
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// print first 12 characters of ID and first configured name alias
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for _, externalCtn := range listCtn {
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fmt.Printf(" - %s (%s)\n", externalCtn.ID[0:12], externalCtn.Names[0])
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}
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}
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fmt.Print(`Are you sure you want to continue? [y/N] `)
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answer, err := reader.ReadString('\n')
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if err != nil {
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logrus.Error(err)
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os.Exit(1)
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}
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if strings.ToLower(answer)[0] != 'y' {
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os.Exit(0)
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}
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}
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// Purge all the external containers with storage
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_, err := registry.ContainerEngine().ContainerRm(registry.Context(), listCtnIds, entities.RmOptions{Force: true, All: true, Ignore: true, Volumes: true})
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if err != nil {
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logrus.Error(err)
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}
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// Shutdown all running engines, `reset` will hijack repository
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registry.ContainerEngine().Shutdown(registry.Context())
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registry.ImageEngine().Shutdown(registry.Context())
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// Do not try to shut the engine down, as a Reset engine is not valid
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// after its creation.
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if _, err := infra.NewSystemEngine(entities.ResetMode, registry.PodmanConfig()); err != nil {
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logrus.Error(err)
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os.Exit(define.ExecErrorCodeGeneric)
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}
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// Shutdown podman-machine and delete all machine files
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if err := resetMachine(); err != nil {
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logrus.Error(err)
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}
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os.Exit(0)
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}
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