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spiegel_podman/pkg/domain/entities/engine_container.go
Matt Heon 023a354de7 Remove Libpod special-init conditions 
Before this, for some special Podman commands (system reset,
system migrate, system renumber), Podman would create a first
Libpod runtime to do initialization and flag parsing, then stop
that runtime and create an entirely new runtime to perform the
actual task. This is an artifact of the pre-Podman 2.0 days, when
there was almost no indirection between Libpod and the CLI, and
we only used one runtime because we didn't need a second runtime
for flag parsing and basic init.

This system was clunky, and apparently, very buggy. When we
migrated to SQLite, some logic was introduced where we'd select a
different database location based on whether or not Libpod's
StaticDir was manually set - which differed between the first
invocation of Libpod and the second. So we'd get a different
database for some commands (like `system reset`) and they would
not be able to see existing containers, meaning they would not
function properly.

The immediate cause is obviously the SQLite behavior, but I'm
certain there's a lot more baggage hiding behind this multiple
Libpod runtime logic, so let's just refactor it out. It doesn't
make sense, and complicates the code. Instead, make Reset,
Renumber, and Migrate methods of the libpod Runtime. For Reset
and Renumber, we can shut the runtime down afterwards to achieve
the desired effect (no valid runtime after). Then pipe all of
them through the ContainerEngine so cmd/podman can access them.

As part of this, remove the SystemEngine part of pkg/domain. This
was supposed to encompass these "special" commands, but every
command in SystemEngine is actually a ContainerEngine command.
Reset, Renumber, Migrate - they all need a full Libpod and access
to all containers. There's no point to a separate engine if it
just wraps Libpod in the exact same way as ContainerEngine. This
consolidation saves us a bit more code and complexity.

Signed-off-by: Matt Heon <mheon@redhat.com>

<MH: Fixed cherry-pick conflicts for v4.8 branch>

Signed-off-by: Matt Heon <mheon@redhat.com>
2024-01-15 12:14:17 -05:00

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package entities
import (
"context"
"io"
"github.com/containers/common/libnetwork/types"
"github.com/containers/common/pkg/config"
"github.com/containers/podman/v4/libpod/define"
"github.com/containers/podman/v4/pkg/domain/entities/reports"
"github.com/containers/podman/v4/pkg/specgen"
)
type ContainerCopyFunc func() error
type ContainerEngine interface { //nolint:interfacebloat
AutoUpdate(ctx context.Context, options AutoUpdateOptions) ([]*AutoUpdateReport, []error)
Config(ctx context.Context) (*config.Config, error)
ContainerAttach(ctx context.Context, nameOrID string, options AttachOptions) error
ContainerCheckpoint(ctx context.Context, namesOrIds []string, options CheckpointOptions) ([]*CheckpointReport, error)
ContainerCleanup(ctx context.Context, namesOrIds []string, options ContainerCleanupOptions) ([]*ContainerCleanupReport, error)
ContainerClone(ctx context.Context, ctrClone ContainerCloneOptions) (*ContainerCreateReport, error)
ContainerCommit(ctx context.Context, nameOrID string, options CommitOptions) (*CommitReport, error)
ContainerCopyFromArchive(ctx context.Context, nameOrID, path string, reader io.Reader, options CopyOptions) (ContainerCopyFunc, error)
ContainerCopyToArchive(ctx context.Context, nameOrID string, path string, writer io.Writer) (ContainerCopyFunc, error)
ContainerCreate(ctx context.Context, s *specgen.SpecGenerator) (*ContainerCreateReport, error)
ContainerExec(ctx context.Context, nameOrID string, options ExecOptions, streams define.AttachStreams) (int, error)
ContainerExecDetached(ctx context.Context, nameOrID string, options ExecOptions) (string, error)
ContainerExists(ctx context.Context, nameOrID string, options ContainerExistsOptions) (*BoolReport, error)
ContainerExport(ctx context.Context, nameOrID string, options ContainerExportOptions) error
ContainerInit(ctx context.Context, namesOrIds []string, options ContainerInitOptions) ([]*ContainerInitReport, error)
ContainerInspect(ctx context.Context, namesOrIds []string, options InspectOptions) ([]*ContainerInspectReport, []error, error)
ContainerKill(ctx context.Context, namesOrIds []string, options KillOptions) ([]*KillReport, error)
ContainerList(ctx context.Context, options ContainerListOptions) ([]ListContainer, error)
ContainerListExternal(ctx context.Context) ([]ListContainer, error)
ContainerLogs(ctx context.Context, containers []string, options ContainerLogsOptions) error
ContainerMount(ctx context.Context, nameOrIDs []string, options ContainerMountOptions) ([]*ContainerMountReport, error)
ContainerPause(ctx context.Context, namesOrIds []string, options PauseUnPauseOptions) ([]*PauseUnpauseReport, error)
ContainerPort(ctx context.Context, nameOrID string, options ContainerPortOptions) ([]*ContainerPortReport, error)
ContainerPrune(ctx context.Context, options ContainerPruneOptions) ([]*reports.PruneReport, error)
ContainerRename(ctr context.Context, nameOrID string, options ContainerRenameOptions) error
ContainerRestart(ctx context.Context, namesOrIds []string, options RestartOptions) ([]*RestartReport, error)
ContainerRestore(ctx context.Context, namesOrIds []string, options RestoreOptions) ([]*RestoreReport, error)
ContainerRm(ctx context.Context, namesOrIds []string, options RmOptions) ([]*reports.RmReport, error)
ContainerRun(ctx context.Context, opts ContainerRunOptions) (*ContainerRunReport, error)
ContainerRunlabel(ctx context.Context, label string, image string, args []string, opts ContainerRunlabelOptions) error
ContainerStart(ctx context.Context, namesOrIds []string, options ContainerStartOptions) ([]*ContainerStartReport, error)
ContainerStat(ctx context.Context, nameOrDir string, path string) (*ContainerStatReport, error)
ContainerStats(ctx context.Context, namesOrIds []string, options ContainerStatsOptions) (chan ContainerStatsReport, error)
ContainerStop(ctx context.Context, namesOrIds []string, options StopOptions) ([]*StopReport, error)
ContainerTop(ctx context.Context, options TopOptions) (*StringSliceReport, error)
ContainerUnmount(ctx context.Context, nameOrIDs []string, options ContainerUnmountOptions) ([]*ContainerUnmountReport, error)
ContainerUnpause(ctx context.Context, namesOrIds []string, options PauseUnPauseOptions) ([]*PauseUnpauseReport, error)
ContainerUpdate(ctx context.Context, options *ContainerUpdateOptions) (string, error)
ContainerWait(ctx context.Context, namesOrIds []string, options WaitOptions) ([]WaitReport, error)
Diff(ctx context.Context, namesOrIds []string, options DiffOptions) (*DiffReport, error)
Events(ctx context.Context, opts EventsOptions) error
GenerateSpec(ctx context.Context, opts *GenerateSpecOptions) (*GenerateSpecReport, error)
GenerateSystemd(ctx context.Context, nameOrID string, opts GenerateSystemdOptions) (*GenerateSystemdReport, error)
GenerateKube(ctx context.Context, nameOrIDs []string, opts GenerateKubeOptions) (*GenerateKubeReport, error)
SystemPrune(ctx context.Context, options SystemPruneOptions) (*SystemPruneReport, error)
HealthCheckRun(ctx context.Context, nameOrID string, options HealthCheckOptions) (*define.HealthCheckResults, error)
Info(ctx context.Context) (*define.Info, error)
KubeApply(ctx context.Context, body io.Reader, opts ApplyOptions) error
Locks(ctx context.Context) (*LocksReport, error)
Migrate(ctx context.Context, options SystemMigrateOptions) error
NetworkConnect(ctx context.Context, networkname string, options NetworkConnectOptions) error
NetworkCreate(ctx context.Context, network types.Network, createOptions *types.NetworkCreateOptions) (*types.Network, error)
NetworkUpdate(ctx context.Context, networkname string, options NetworkUpdateOptions) error
NetworkDisconnect(ctx context.Context, networkname string, options NetworkDisconnectOptions) error
NetworkExists(ctx context.Context, networkname string) (*BoolReport, error)
NetworkInspect(ctx context.Context, namesOrIds []string, options InspectOptions) ([]types.Network, []error, error)
NetworkList(ctx context.Context, options NetworkListOptions) ([]types.Network, error)
NetworkPrune(ctx context.Context, options NetworkPruneOptions) ([]*NetworkPruneReport, error)
NetworkReload(ctx context.Context, names []string, options NetworkReloadOptions) ([]*NetworkReloadReport, error)
NetworkRm(ctx context.Context, namesOrIds []string, options NetworkRmOptions) ([]*NetworkRmReport, error)
PlayKube(ctx context.Context, body io.Reader, opts PlayKubeOptions) (*PlayKubeReport, error)
PlayKubeDown(ctx context.Context, body io.Reader, opts PlayKubeDownOptions) (*PlayKubeReport, error)
PodCreate(ctx context.Context, specg PodSpec) (*PodCreateReport, error)
PodClone(ctx context.Context, podClone PodCloneOptions) (*PodCloneReport, error)
PodExists(ctx context.Context, nameOrID string) (*BoolReport, error)
PodInspect(ctx context.Context, namesOrID []string, options InspectOptions) ([]*PodInspectReport, []error, error)
PodKill(ctx context.Context, namesOrIds []string, options PodKillOptions) ([]*PodKillReport, error)
PodLogs(ctx context.Context, pod string, options PodLogsOptions) error
PodPause(ctx context.Context, namesOrIds []string, options PodPauseOptions) ([]*PodPauseReport, error)
PodPrune(ctx context.Context, options PodPruneOptions) ([]*PodPruneReport, error)
PodPs(ctx context.Context, options PodPSOptions) ([]*ListPodsReport, error)
PodRestart(ctx context.Context, namesOrIds []string, options PodRestartOptions) ([]*PodRestartReport, error)
PodRm(ctx context.Context, namesOrIds []string, options PodRmOptions) ([]*PodRmReport, error)
PodStart(ctx context.Context, namesOrIds []string, options PodStartOptions) ([]*PodStartReport, error)
PodStats(ctx context.Context, namesOrIds []string, options PodStatsOptions) ([]*PodStatsReport, error)
PodStop(ctx context.Context, namesOrIds []string, options PodStopOptions) ([]*PodStopReport, error)
PodTop(ctx context.Context, options PodTopOptions) (*StringSliceReport, error)
PodUnpause(ctx context.Context, namesOrIds []string, options PodunpauseOptions) ([]*PodUnpauseReport, error)
Renumber(ctx context.Context) error
Reset(ctx context.Context) error
SetupRootless(ctx context.Context, noMoveProcess bool) error
SecretCreate(ctx context.Context, name string, reader io.Reader, options SecretCreateOptions) (*SecretCreateReport, error)
SecretInspect(ctx context.Context, nameOrIDs []string, options SecretInspectOptions) ([]*SecretInfoReport, []error, error)
SecretList(ctx context.Context, opts SecretListRequest) ([]*SecretInfoReport, error)
SecretRm(ctx context.Context, nameOrID []string, opts SecretRmOptions) ([]*SecretRmReport, error)
SecretExists(ctx context.Context, nameOrID string) (*BoolReport, error)
Shutdown(ctx context.Context)
SystemDf(ctx context.Context, options SystemDfOptions) (*SystemDfReport, error)
Unshare(ctx context.Context, args []string, options SystemUnshareOptions) error
Version(ctx context.Context) (*SystemVersionReport, error)
VolumeCreate(ctx context.Context, opts VolumeCreateOptions) (*IDOrNameResponse, error)
VolumeExists(ctx context.Context, namesOrID string) (*BoolReport, error)
VolumeMounted(ctx context.Context, namesOrID string) (*BoolReport, error)
VolumeInspect(ctx context.Context, namesOrIds []string, opts InspectOptions) ([]*VolumeInspectReport, []error, error)
VolumeList(ctx context.Context, opts VolumeListOptions) ([]*VolumeListReport, error)
VolumeMount(ctx context.Context, namesOrIds []string) ([]*VolumeMountReport, error)
VolumePrune(ctx context.Context, options VolumePruneOptions) ([]*reports.PruneReport, error)
VolumeRm(ctx context.Context, namesOrIds []string, opts VolumeRmOptions) ([]*VolumeRmReport, error)
VolumeUnmount(ctx context.Context, namesOrIds []string) ([]*VolumeUnmountReport, error)
VolumeReload(ctx context.Context) (*VolumeReloadReport, error)
}
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