Fix container and pod create commands for remote create

In `podman inspect` output for containers and pods, we include
the command that was used to create the container. This is also
used by `podman generate systemd --new` to generate unit files.

With remote podman, the generated create commands were incorrect
since we sourced directly from os.Args on the server side, which
was guaranteed to be `podman system service` (or some variant
thereof). The solution is to pass the command along in the
Specgen or PodSpecgen, where we can source it from the client's
os.Args.

This will still be VERY iffy for mixed local/remote use (doing a
`podman --remote run ...` on a remote client then a
`podman generate systemd --new` on the server on the same
container will not work, because the `--remote` flag will slip
in) but at the very least the output of `podman inspect` will be
correct. We can look into properly handling `--remote` (parsing
it out would be a little iffy) in a future PR.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>

<MH: Fixed build after cherry-pick>

Signed-off-by: Matthew Heon <matthew.heon@pm.me>

10 files changed, 30 insertions, 14 deletions

diff --git a/cmd/podman/common/specgen.go b/cmd/podman/common/specgen.go
index b4f786da2..3722d45b2 100644
--- a/cmd/podman/common/specgen.go
+++ b/cmd/podman/common/specgen.go
@@ -378,6 +378,9 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *ContainerCLIOpts, args []string
 	}
 	var command []string
 
+	// Include the command used to create the container.
+	s.ContainerCreateCommand = os.Args
+
 	// Build the command
 	// If we have an entry point, it goes first
 	if c.Entrypoint != nil {
diff --git a/cmd/podman/pods/create.go b/cmd/podman/pods/create.go
index 0e2a085fd..d57a2f2f7 100644
--- a/cmd/podman/pods/create.go
+++ b/cmd/podman/pods/create.go
@@ -149,6 +149,8 @@ func create(cmd *cobra.Command, args []string) error {
 		}
 	}
 
+	createOptions.CreateCommand = os.Args
+
 	if replace {
 		if err := replacePod(createOptions.Name); err != nil {
 			return err
diff --git a/libpod/options.go b/libpod/options.go
index 3120a35d7..bff3f3c18 100644
--- a/libpod/options.go
+++ b/libpod/options.go
@@ -1371,12 +1371,12 @@ func WithHealthCheck(healthCheck *manifest.Schema2HealthConfig) CtrCreateOption
 
 // WithCreateCommand adds the full command plus arguments of the current
 // process to the container config.
-func WithCreateCommand() CtrCreateOption {
+func WithCreateCommand(cmd []string) CtrCreateOption {
 	return func(ctr *Container) error {
 		if ctr.valid {
 			return define.ErrCtrFinalized
 		}
-		ctr.config.CreateCommand = os.Args
+		ctr.config.CreateCommand = cmd
 		return nil
 	}
 }
@@ -1553,12 +1553,12 @@ func WithPodHostname(hostname string) PodCreateOption {
 
 // WithPodCreateCommand adds the full command plus arguments of the current
 // process to the pod config.
-func WithPodCreateCommand() PodCreateOption {
+func WithPodCreateCommand(createCmd []string) PodCreateOption {
 	return func(pod *Pod) error {
 		if pod.valid {
 			return define.ErrPodFinalized
 		}
-		pod.config.CreateCommand = os.Args
+		pod.config.CreateCommand = createCmd
 		return nil
 	}
 }
diff --git a/pkg/domain/entities/pods.go b/pkg/domain/entities/pods.go
index 8023034ef..9e9b834ef 100644
--- a/pkg/domain/entities/pods.go
+++ b/pkg/domain/entities/pods.go
@@ -104,6 +104,7 @@ type PodRmReport struct {
 
 type PodCreateOptions struct {
 	CGroupParent       string
+	CreateCommand      []string
 	Hostname           string
 	Infra              bool
 	InfraImage         string
@@ -133,6 +134,7 @@ func (p PodCreateOptions) ToPodSpecGen(s *specgen.PodSpecGenerator) {
 	}
 	s.InfraImage = p.InfraImage
 	s.SharedNamespaces = p.Share
+	s.PodCreateCommand = p.CreateCommand
 
 	// Networking config
 	s.NetNS = p.Net.Network
diff --git a/pkg/spec/createconfig.go b/pkg/spec/createconfig.go
index 879c66895..55c3238d2 100644
--- a/pkg/spec/createconfig.go
+++ b/pkg/spec/createconfig.go
@@ -406,10 +406,6 @@ func CreateContainerFromCreateConfig(ctx context.Context, r *libpod.Runtime, cre
 		return nil, err
 	}
 
-	// Set the CreateCommand explicitly.  Some (future) consumers of libpod
-	// might not want to set it.
-	options = append(options, libpod.WithCreateCommand())
-
 	ctr, err := r.NewContainer(ctx, runtimeSpec, options...)
 	if err != nil {
 		return nil, err
diff --git a/pkg/specgen/generate/container_create.go b/pkg/specgen/generate/container_create.go
index daf7f84d4..be1e3b48e 100644
--- a/pkg/specgen/generate/container_create.go
+++ b/pkg/specgen/generate/container_create.go
@@ -78,7 +78,9 @@ func MakeContainer(ctx context.Context, rt *libpod.Runtime, s *specgen.SpecGener
 	}
 
 	options := []libpod.CtrCreateOption{}
-	options = append(options, libpod.WithCreateCommand())
+	if s.ContainerCreateCommand != nil {
+		options = append(options, libpod.WithCreateCommand(s.ContainerCreateCommand))
+	}
 
 	var newImage *image.Image
 	if s.Rootfs != "" {
diff --git a/pkg/specgen/generate/pod_create.go b/pkg/specgen/generate/pod_create.go
index 690651a23..4fe1b6435 100644
--- a/pkg/specgen/generate/pod_create.go
+++ b/pkg/specgen/generate/pod_create.go
@@ -93,7 +93,9 @@ func createPodOptions(p *specgen.PodSpecGenerator) ([]libpod.PodCreateOption, er
 		options = append(options, libpod.WithInfraContainerPorts(ports))
 	}
 	options = append(options, libpod.WithPodCgroups())
-	options = append(options, libpod.WithPodCreateCommand())
+	if p.PodCreateCommand != nil {
+		options = append(options, libpod.WithPodCreateCommand(p.PodCreateCommand))
+	}
 	if len(p.InfraConmonPidFile) > 0 {
 		options = append(options, libpod.WithInfraConmonPidFile(p.InfraConmonPidFile))
 	}
diff --git a/pkg/specgen/podspecgen.go b/pkg/specgen/podspecgen.go
index 600d27004..3c32ec365 100644
--- a/pkg/specgen/podspecgen.go
+++ b/pkg/specgen/podspecgen.go
@@ -49,6 +49,12 @@ type PodBasicConfig struct {
 	// Conflicts with NoInfra=true.
 	// Optional.
 	SharedNamespaces []string `json:"shared_namespaces,omitempty"`
+	// PodCreateCommand is the command used to create this pod.
+	// This will be shown in the output of Inspect() on the pod, and may
+	// also be used by some tools that wish to recreate the pod
+	// (e.g. `podman generate systemd --new`).
+	// Optional.
+	PodCreateCommand []string `json:"pod_create_command,omitempty"`
 }
 
 // PodNetworkConfig contains networking configuration for a pod.
diff --git a/pkg/specgen/specgen.go b/pkg/specgen/specgen.go
index 91bc36709..bd738f5a7 100644
--- a/pkg/specgen/specgen.go
+++ b/pkg/specgen/specgen.go
@@ -131,6 +131,13 @@ type ContainerBasicConfig struct {
 	// Remove indicates if the container should be removed once it has been started
 	// and exits
 	Remove bool `json:"remove,omitempty"`
+	// ContainerCreateCommand is the command that was used to create this
+	// container.
+	// This will be shown in the output of Inspect() on the container, and
+	// may also be used by some tools that wish to recreate the container
+	// (e.g. `podman generate systemd --new`).
+	// Optional.
+	ContainerCreateCommand []string `json:"containerCreateCommand,omitempty"`
 }
 
 // ContainerStorageConfig contains information on the storage configuration of a
diff --git a/pkg/varlinkapi/create.go b/pkg/varlinkapi/create.go
index 5c5f075f7..ac93939d9 100644
--- a/pkg/varlinkapi/create.go
+++ b/pkg/varlinkapi/create.go
@@ -915,10 +915,6 @@ func CreateContainerFromCreateConfig(ctx context.Context, r *libpod.Runtime, cre
 		return nil, err
 	}
 
-	// Set the CreateCommand explicitly.  Some (future) consumers of libpod
-	// might not want to set it.
-	options = append(options, libpod.WithCreateCommand())
-
 	ctr, err := r.NewContainer(ctx, runtimeSpec, options...)
 	if err != nil {
 		return nil, err