podman-remote inspect

base enablement of the inspect command.

Signed-off-by: baude <bbaude@redhat.com>

11 files changed, 151 insertions, 67 deletions

diff --git a/libpod/adapter/containers_remote.go b/libpod/adapter/containers_remote.go
new file mode 100644
index 000000000..9623304e5
--- /dev/null
+++ b/libpod/adapter/containers_remote.go
@@ -0,0 +1,50 @@
+// +build remoteclient
+
+package adapter
+
+import (
+	"encoding/json"
+
+	iopodman "github.com/containers/libpod/cmd/podman/varlink"
+	"github.com/containers/libpod/libpod"
+	"github.com/containers/libpod/pkg/inspect"
+)
+
+// Inspect returns an inspect struct from varlink
+func (c *Container) Inspect(size bool) (*inspect.ContainerInspectData, error) {
+	reply, err := iopodman.ContainerInspectData().Call(c.Runtime.Conn, c.ID())
+	if err != nil {
+		return nil, err
+	}
+	data := inspect.ContainerInspectData{}
+	if err := json.Unmarshal([]byte(reply), &data); err != nil {
+		return nil, err
+	}
+	return &data, err
+}
+
+// ID returns the ID of the container
+func (c *Container) ID() string {
+	return c.config.ID
+}
+
+// GetArtifact returns a container's artifacts
+func (c *Container) GetArtifact(name string) ([]byte, error) {
+	var data []byte
+	reply, err := iopodman.ContainerArtifacts().Call(c.Runtime.Conn, c.ID(), name)
+	if err != nil {
+		return nil, err
+	}
+	if err := json.Unmarshal([]byte(reply), &data); err != nil {
+		return nil, err
+	}
+	return data, err
+}
+
+// Config returns a container's Config ... same as ctr.Config()
+func (c *Container) Config() *libpod.ContainerConfig {
+	if c.config != nil {
+		return c.config
+	}
+	return c.Runtime.Config(c.ID())
+}
diff --git a/libpod/adapter/images_remote.go b/libpod/adapter/images_remote.go
index 77b0629a7..e7b38dccc 100644
--- a/libpod/adapter/images_remote.go
+++ b/libpod/adapter/images_remote.go
@@ -3,15 +3,22 @@
 package adapter
 
 import (
-	"github.com/containers/libpod/libpod"
+	"context"
+	"encoding/json"
+
+	iopodman "github.com/containers/libpod/cmd/podman/varlink"
+	"github.com/containers/libpod/pkg/inspect"
 )
 
-// Images returns information for the host system and its components
-func (r RemoteRuntime) Images() ([]libpod.InfoData, error) {
-	conn, err := r.Connect()
+// Inspect returns returns an ImageData struct from over a varlink connection
+func (i *ContainerImage) Inspect(ctx context.Context) (*inspect.ImageData, error) {
+	reply, err := iopodman.InspectImage().Call(i.Runtime.Conn, i.ID())
 	if err != nil {
 		return nil, err
 	}
-	_ = conn
-	return nil, nil
+	data := inspect.ImageData{}
+	if err := json.Unmarshal([]byte(reply), &data); err != nil {
+		return nil, err
+	}
+	return &data, nil
 }
diff --git a/libpod/adapter/runtime_remote.go b/libpod/adapter/runtime_remote.go
index 8ef8fe167..7189348bc 100644
--- a/libpod/adapter/runtime_remote.go
+++ b/libpod/adapter/runtime_remote.go
@@ -4,15 +4,18 @@ package adapter
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"io"
 	"strings"
 	"time"
 
 	"github.com/containers/image/types"
-	iopodman "github.com/containers/libpod/cmd/podman/varlink"
+	"github.com/containers/libpod/cmd/podman/varlink"
+	"github.com/containers/libpod/libpod"
 	"github.com/containers/libpod/libpod/image"
-	digest "github.com/opencontainers/go-digest"
+	"github.com/opencontainers/go-digest"
+	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli"
 	"github.com/varlink/go/varlink"
 )
@@ -80,21 +83,9 @@ type Container struct {
 
 // remoteContainer ....
 type remoteContainer struct {
-	ID         string
-	Image      string
-	ImageID    string
-	Command    []string
-	Created    time.Time
-	RunningFor string
-	Status     string
-	//Ports            []ocicni.PortMapping
-	RootFsSize int64
-	RWSize     int64
-	Names      string
-	Labels     []map[string]string
-	//	Mounts           []string
-	// ContainerRunning bool
-	//Namespaces       []LinuxNameSpace
+	Runtime *LocalRuntime
+	config  *libpod.ContainerConfig
+	state   *libpod.ContainerState
 }
 
 // GetImages returns a slice of containerimages over a varlink connection
@@ -272,39 +263,60 @@ func (ci *ContainerImage) History(ctx context.Context) ([]*image.History, error)
 
 // LookupContainer gets basic information about container over a varlink
 // connection and then translates it to a *Container
-func (r *RemoteRuntime) LookupContainer(idOrName string) (*Container, error) {
-	container, err := iopodman.GetContainer().Call(r.Conn, idOrName)
+func (r *LocalRuntime) LookupContainer(idOrName string) (*Container, error) {
+	state, err := r.ContainerState(idOrName)
 	if err != nil {
 		return nil, err
 	}
-	return listContainerDataToContainer(container)
+	config := r.Config(idOrName)
+	if err != nil {
+		return nil, err
+	}
+
+	rc := remoteContainer{
+		r,
+		config,
+		state,
+	}
+
+	c := Container{
+		rc,
+	}
+	return &c, nil
+}
+
+func (r *LocalRuntime) GetLatestContainer() (*Container, error) {
+	return nil, libpod.ErrNotImplemented
 }
 
-// listContainerDataToContainer takes a varlink listcontainerData struct and makes
-// an "adapted" Container
-func listContainerDataToContainer(listData iopodman.ListContainerData) (*Container, error) {
-	created, err := splitStringDate(listData.Createdat)
+// ContainerState returns the "state" of the container.
+func (r *LocalRuntime) ContainerState(name string) (*libpod.ContainerState, error) { //no-lint
+	reply, err := iopodman.ContainerStateData().Call(r.Conn, name)
 	if err != nil {
 		return nil, err
 	}
-	rc := remoteContainer{
-		// TODO commented out attributes will be populated when podman-remote ps
-		// is implemented.   They are not needed yet for basic container operations.
-		ID:         listData.Id,
-		Image:      listData.Image,
-		ImageID:    listData.Imageid,
-		Command:    listData.Command,
-		Created:    created,
-		RunningFor: listData.Runningfor,
-		Status:     listData.Status,
-		//ports:
-		RootFsSize: listData.Rootfssize,
-		RWSize:     listData.Rwsize,
-		Names:      listData.Names,
-		//Labels:
-		//Mounts
-		//ContainerRunning:
-		//namespaces:
+	data := libpod.ContainerState{}
+	if err := json.Unmarshal([]byte(reply), &data); err != nil {
+		return nil, err
 	}
-	return &Container{rc}, nil
+	return &data, err
+
+}
+
+// Config returns a container config
+func (r *LocalRuntime) Config(name string) *libpod.ContainerConfig {
+	// TODO the Spec being returned is not populated.  Matt and I could not figure out why.  Will defer
+	// further looking into it for after devconf.
+	// The libpod function for this has no errors so we are kind of in a tough
+	// spot here.  Logging the errors for now.
+	reply, err := iopodman.ContainerConfig().Call(r.Conn, name)
+	if err != nil {
+		logrus.Error("call to container.config failed")
+	}
+	data := libpod.ContainerConfig{}
+	if err := json.Unmarshal([]byte(reply), &data); err != nil {
+		logrus.Error("failed to unmarshal container inspect data")
+	}
+	return &data
+
 }
diff --git a/libpod/boltdb_state.go b/libpod/boltdb_state.go
index e7a07a9a8..5bc15dd7f 100644
--- a/libpod/boltdb_state.go
+++ b/libpod/boltdb_state.go
@@ -205,7 +205,7 @@ func (s *BoltState) Refresh() error {
 				return errors.Wrapf(ErrInternal, "container %s missing state in DB", string(id))
 			}
 
-			state := new(containerState)
+			state := new(ContainerState)
 
 			if err := json.Unmarshal(stateBytes, state); err != nil {
 				return errors.Wrapf(err, "error unmarshalling state for container %s", string(id))
@@ -325,7 +325,7 @@ func (s *BoltState) Container(id string) (*Container, error) {
 
 	ctr := new(Container)
 	ctr.config = new(ContainerConfig)
-	ctr.state = new(containerState)
+	ctr.state = new(ContainerState)
 
 	db, err := s.getDBCon()
 	if err != nil {
@@ -361,7 +361,7 @@ func (s *BoltState) LookupContainer(idOrName string) (*Container, error) {
 
 	ctr := new(Container)
 	ctr.config = new(ContainerConfig)
-	ctr.state = new(containerState)
+	ctr.state = new(ContainerState)
 
 	db, err := s.getDBCon()
 	if err != nil {
@@ -542,7 +542,7 @@ func (s *BoltState) UpdateContainer(ctr *Container) error {
 		return errors.Wrapf(ErrNSMismatch, "container %s is in namespace %q, does not match our namespace %q", ctr.ID(), ctr.config.Namespace, s.namespace)
 	}
 
-	newState := new(containerState)
+	newState := new(ContainerState)
 	netNSPath := ""
 
 	ctrID := []byte(ctr.ID())
@@ -754,7 +754,7 @@ func (s *BoltState) AllContainers() ([]*Container, error) {
 
 			ctr := new(Container)
 			ctr.config = new(ContainerConfig)
-			ctr.state = new(containerState)
+			ctr.state = new(ContainerState)
 
 			if err := s.getContainerFromDB(id, ctr, ctrBucket); err != nil {
 				// If the error is a namespace mismatch, we can
@@ -1140,7 +1140,7 @@ func (s *BoltState) PodContainers(pod *Pod) ([]*Container, error) {
 		err = podCtrs.ForEach(func(id, val []byte) error {
 			newCtr := new(Container)
 			newCtr.config = new(ContainerConfig)
-			newCtr.state = new(containerState)
+			newCtr.state = new(ContainerState)
 			ctrs = append(ctrs, newCtr)
 
 			return s.getContainerFromDB(id, newCtr, ctrBkt)
diff --git a/libpod/boltdb_state_linux.go b/libpod/boltdb_state_linux.go
index d91f311e5..09a9be606 100644
--- a/libpod/boltdb_state_linux.go
+++ b/libpod/boltdb_state_linux.go
@@ -8,7 +8,7 @@ import (
 
 // replaceNetNS handle network namespace transitions after updating a
 // container's state.
-func replaceNetNS(netNSPath string, ctr *Container, newState *containerState) error {
+func replaceNetNS(netNSPath string, ctr *Container, newState *ContainerState) error {
 	if netNSPath != "" {
 		// Check if the container's old state has a good netns
 		if ctr.state.NetNS != nil && netNSPath == ctr.state.NetNS.Path() {
diff --git a/libpod/boltdb_state_unsupported.go b/libpod/boltdb_state_unsupported.go
index 64610d304..244dc51a0 100644
--- a/libpod/boltdb_state_unsupported.go
+++ b/libpod/boltdb_state_unsupported.go
@@ -3,7 +3,7 @@
 package libpod
 
 // replaceNetNS is exclusive to the Linux platform and is a no-op elsewhere
-func replaceNetNS(netNSPath string, ctr *Container, newState *containerState) error {
+func replaceNetNS(netNSPath string, ctr *Container, newState *ContainerState) error {
 	return nil
 }
 
diff --git a/libpod/common_test.go b/libpod/common_test.go
index 4af68a040..df730098e 100644
--- a/libpod/common_test.go
+++ b/libpod/common_test.go
@@ -48,7 +48,7 @@ func getTestContainer(id, name string, manager lock.Manager) (*Container, error)
 				},
 			},
 		},
-		state: &containerState{
+		state: &ContainerState{
 			State:      ContainerStateRunning,
 			ConfigPath: "/does/not/exist/specs/" + id,
 			RunDir:     "/does/not/exist/tmp/",
@@ -166,10 +166,10 @@ func testContainersEqual(t *testing.T, a, b *Container, allowedEmpty bool) {
 
 	aConfig := new(ContainerConfig)
 	bConfig := new(ContainerConfig)
-	aState := new(containerState)
-	bState := new(containerState)
+	aState := new(ContainerState)
+	bState := new(ContainerState)
 
-	blankState := new(containerState)
+	blankState := new(ContainerState)
 
 	assert.Equal(t, a.valid, b.valid)
 
diff --git a/libpod/container.go b/libpod/container.go
index b5f6a29ba..b0589be3b 100644
--- a/libpod/container.go
+++ b/libpod/container.go
@@ -116,7 +116,7 @@ func (ns LinuxNS) String() string {
 type Container struct {
 	config *ContainerConfig
 
-	state *containerState
+	state *ContainerState
 
 	// Batched indicates that a container has been locked as part of a
 	// Batch() operation
@@ -136,10 +136,10 @@ type Container struct {
 	requestedIP net.IP
 }
 
-// containerState contains the current state of the container
+// ContainerState contains the current state of the container
 // It is stored on disk in a tmpfs and recreated on reboot
 // easyjson:json
-type containerState struct {
+type ContainerState struct {
 	// The current state of the running container
 	State ContainerStatus `json:"state"`
 	// The path to the JSON OCI runtime spec for this container
@@ -1063,3 +1063,18 @@ func networkDisabled(c *Container) (bool, error) {
 	}
 	return false, nil
 }
+
+// ContainerState returns containerstate struct
+func (c *Container) ContainerState() (*ContainerState, error) {
+	if !c.batched {
+		c.lock.Lock()
+		defer c.lock.Unlock()
+
+		if err := c.syncContainer(); err != nil {
+			return nil, err
+		}
+	}
+	returnConfig := new(ContainerState)
+	deepcopier.Copy(c.state).To(returnConfig)
+	return c.state, nil
+}
diff --git a/libpod/container_internal.go b/libpod/container_internal.go
index ce8791f08..39c1501da 100644
--- a/libpod/container_internal.go
+++ b/libpod/container_internal.go
@@ -388,7 +388,7 @@ func (c *Container) teardownStorage() error {
 // Reset resets state fields to default values
 // It is performed before a refresh and clears the state after a reboot
 // It does not save the results - assumes the database will do that for us
-func resetState(state *containerState) error {
+func resetState(state *ContainerState) error {
 	state.PID = 0
 	state.Mountpoint = ""
 	state.Mounted = false
diff --git a/libpod/container_internal_test.go b/libpod/container_internal_test.go
index 124f1d20e..f1e2b70a7 100644
--- a/libpod/container_internal_test.go
+++ b/libpod/container_internal_test.go
@@ -37,7 +37,7 @@ func TestPostDeleteHooks(t *testing.T) {
 			},
 			StaticDir: dir, // not the bundle, but good enough for this test
 		},
-		state: &containerState{
+		state: &ContainerState{
 			ExtensionStageHooks: map[string][]rspec.Hook{
 				"poststop": {
 					rspec.Hook{
diff --git a/libpod/runtime_ctr.go b/libpod/runtime_ctr.go
index 68599fe6d..6d5ce5a7e 100644
--- a/libpod/runtime_ctr.go
+++ b/libpod/runtime_ctr.go
@@ -48,7 +48,7 @@ func (r *Runtime) newContainer(ctx context.Context, rSpec *spec.Spec, options ..
 
 	ctr := new(Container)
 	ctr.config = new(ContainerConfig)
-	ctr.state = new(containerState)
+	ctr.state = new(ContainerState)
 
 	ctr.config.ID = stringid.GenerateNonCryptoID()