podman-remote ps

add the ability to run ps on containers using the remote client. Signed-off-by: baude <bbaude@redhat.com>
containers · Apr 9, 2019 · c41fdad · c41fdad
1 parent fe79bdd
commit c41fdad
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Showing 10 changed files with 285 additions and 179 deletions.
diff --git a/cmd/podman/commands.go b/cmd/podman/commands.go
@@ -16,7 +16,6 @@ func getMainCommands() []*cobra.Command {
 		_execCommand,
 		_generateCommand,
 		_playCommand,
-		&_psCommand,
 		_loginCommand,
 		_logoutCommand,
 		_mountCommand,

diff --git a/cmd/podman/main.go b/cmd/podman/main.go
@@ -52,6 +52,7 @@ var mainCommands = []*cobra.Command{
 	_loadCommand,
 	_logsCommand,
 	podCommand.Command,
+	&_psCommand,
 	_pullCommand,
 	_pushCommand,
 	&_rmiCommand,

diff --git a/cmd/podman/ps.go b/cmd/podman/ps.go
@@ -2,27 +2,23 @@ package main
 
 import (
 	"fmt"
+	"github.com/containers/libpod/pkg/adapter"
 	"html/template"
 	"os"
 	"reflect"
 	"sort"
-	"strconv"
 	"strings"
 	"text/tabwriter"
 	"time"
 
 	tm "github.com/buger/goterm"
 	"github.com/containers/buildah/pkg/formats"
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/libpodruntime"
 	"github.com/containers/libpod/cmd/podman/shared"
-	"github.com/containers/libpod/libpod"
-	"github.com/containers/libpod/pkg/util"
 	"github.com/cri-o/ocicni/pkg/ocicni"
 	"github.com/docker/go-units"
 	"github.com/opentracing/opentracing-go"
 	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"k8s.io/apimachinery/pkg/fields"
 )
@@ -224,7 +220,7 @@ func psCmd(c *cliconfig.PsValues) error {
 		return errors.Wrapf(err, "error with flags passed")
 	}
 
-	runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand)
+	runtime, err := adapter.GetRuntime(&c.PodmanCommand)
 	if err != nil {
 		return errors.Wrapf(err, "error creating libpod runtime")
 	}
@@ -279,128 +275,6 @@ func checkFlagsPassed(c *cliconfig.PsValues) error {
 	return nil
 }
 
-func generateContainerFilterFuncs(filter, filterValue string, runtime *libpod.Runtime) (func(container *libpod.Container) bool, error) {
-	switch filter {
-	case "id":
-		return func(c *libpod.Container) bool {
-			return strings.Contains(c.ID(), filterValue)
-		}, nil
-	case "label":
-		var filterArray []string = strings.SplitN(filterValue, "=", 2)
-		var filterKey string = filterArray[0]
-		if len(filterArray) > 1 {
-			filterValue = filterArray[1]
-		} else {
-			filterValue = ""
-		}
-		return func(c *libpod.Container) bool {
-			for labelKey, labelValue := range c.Labels() {
-				if labelKey == filterKey && ("" == filterValue || labelValue == filterValue) {
-					return true
-				}
-			}
-			return false
-		}, nil
-	case "name":
-		return func(c *libpod.Container) bool {
-			return strings.Contains(c.Name(), filterValue)
-		}, nil
-	case "exited":
-		exitCode, err := strconv.ParseInt(filterValue, 10, 32)
-		if err != nil {
-			return nil, errors.Wrapf(err, "exited code out of range %q", filterValue)
-		}
-		return func(c *libpod.Container) bool {
-			ec, exited, err := c.ExitCode()
-			if ec == int32(exitCode) && err == nil && exited == true {
-				return true
-			}
-			return false
-		}, nil
-	case "status":
-		if !util.StringInSlice(filterValue, []string{"created", "running", "paused", "stopped", "exited", "unknown"}) {
-			return nil, errors.Errorf("%s is not a valid status", filterValue)
-		}
-		return func(c *libpod.Container) bool {
-			status, err := c.State()
-			if err != nil {
-				return false
-			}
-			if filterValue == "stopped" {
-				filterValue = "exited"
-			}
-			state := status.String()
-			if status == libpod.ContainerStateConfigured {
-				state = "created"
-			} else if status == libpod.ContainerStateStopped {
-				state = "exited"
-			}
-			return state == filterValue
-		}, nil
-	case "ancestor":
-		// This needs to refine to match docker
-		// - ancestor=(<image-name>[:tag]|<image-id>| ⟨image@digest⟩) - containers created from an image or a descendant.
-		return func(c *libpod.Container) bool {
-			containerConfig := c.Config()
-			if strings.Contains(containerConfig.RootfsImageID, filterValue) || strings.Contains(containerConfig.RootfsImageName, filterValue) {
-				return true
-			}
-			return false
-		}, nil
-	case "before":
-		ctr, err := runtime.LookupContainer(filterValue)
-		if err != nil {
-			return nil, errors.Errorf("unable to find container by name or id of %s", filterValue)
-		}
-		containerConfig := ctr.Config()
-		createTime := containerConfig.CreatedTime
-		return func(c *libpod.Container) bool {
-			cc := c.Config()
-			return createTime.After(cc.CreatedTime)
-		}, nil
-	case "since":
-		ctr, err := runtime.LookupContainer(filterValue)
-		if err != nil {
-			return nil, errors.Errorf("unable to find container by name or id of %s", filterValue)
-		}
-		containerConfig := ctr.Config()
-		createTime := containerConfig.CreatedTime
-		return func(c *libpod.Container) bool {
-			cc := c.Config()
-			return createTime.Before(cc.CreatedTime)
-		}, nil
-	case "volume":
-		//- volume=(<volume-name>|<mount-point-destination>)
-		return func(c *libpod.Container) bool {
-			containerConfig := c.Config()
-			var dest string
-			arr := strings.Split(filterValue, ":")
-			source := arr[0]
-			if len(arr) == 2 {
-				dest = arr[1]
-			}
-			for _, mount := range containerConfig.Spec.Mounts {
-				if dest != "" && (mount.Source == source && mount.Destination == dest) {
-					return true
-				}
-				if dest == "" && mount.Source == source {
-					return true
-				}
-			}
-			return false
-		}, nil
-	case "health":
-		return func(c *libpod.Container) bool {
-			hcStatus, err := c.HealthCheckStatus()
-			if err != nil {
-				return false
-			}
-			return hcStatus == filterValue
-		}, nil
-	}
-	return nil, errors.Errorf("%s is an invalid filter", filter)
-}
-
 // generate the accurate header based on template given
 func (p *psTemplateParams) headerMap() map[string]string {
 	v := reflect.Indirect(reflect.ValueOf(p))
@@ -550,11 +424,9 @@ func dumpJSON(containers []shared.PsContainerOutput) error {
 	return nil
 }
 
-func psDisplay(c *cliconfig.PsValues, runtime *libpod.Runtime) error {
+func psDisplay(c *cliconfig.PsValues, runtime *adapter.LocalRuntime) error {
 	var (
-		filterFuncs      []libpod.ContainerFilter
-		outputContainers []*libpod.Container
-		err              error
+		err error
 	)
 	opts := shared.PsOptions{
 		All:       c.All,
@@ -570,51 +442,8 @@ func psDisplay(c *cliconfig.PsValues, runtime *libpod.Runtime) error {
 		Sync:      c.Sync,
 	}
 
-	maxWorkers := shared.Parallelize("ps")
-	if c.GlobalIsSet("max-workers") {
-		maxWorkers = c.GlobalFlags.MaxWorks
-	}
-	logrus.Debugf("Setting maximum workers to %d", maxWorkers)
-
-	filters := c.Filter
-	if len(filters) > 0 {
-		for _, f := range filters {
-			filterSplit := strings.SplitN(f, "=", 2)
-			if len(filterSplit) < 2 {
-				return errors.Errorf("filter input must be in the form of filter=value: %s is invalid", f)
-			}
-			generatedFunc, err := generateContainerFilterFuncs(filterSplit[0], filterSplit[1], runtime)
-			if err != nil {
-				return errors.Wrapf(err, "invalid filter")
-			}
-			filterFuncs = append(filterFuncs, generatedFunc)
-		}
-	}
-	if !opts.Latest {
-		// Get all containers
-		containers, err := runtime.GetContainers(filterFuncs...)
-		if err != nil {
-			return err
-		}
-
-		// We only want the last few containers
-		if opts.Last > 0 && opts.Last <= len(containers) {
-			return errors.Errorf("--last not yet supported")
-		} else {
-			outputContainers = containers
-		}
-	} else {
-		// Get just the latest container
-		// Ignore filters
-		latestCtr, err := runtime.GetLatestContainer()
-		if err != nil {
-			return err
-		}
-
-		outputContainers = []*libpod.Container{latestCtr}
-	}
-
-	pss := shared.PBatch(outputContainers, maxWorkers, opts)
+	pss, err := runtime.Ps(c, opts)
+	// Here and down
 	if opts.Sort != "" {
 		pss, err = sortPsOutput(opts.Sort, pss)
 		if err != nil {

diff --git a/cmd/podman/shared/container.go b/cmd/podman/shared/container.go
@@ -44,7 +44,6 @@ type PsOptions struct {
 	Quiet     bool
 	Size      bool
 	Sort      string
-	Label     string
 	Namespace bool
 	Sync      bool
 }
@@ -274,6 +273,54 @@ func worker(wg *sync.WaitGroup, jobs <-chan workerInput, results chan<- PsContai
 	}
 }
 
+// GetPsContainerOutput returns a slice of containers specifically for ps output
+func GetPsContainerOutput(r *libpod.Runtime, opts PsOptions, filters []string, maxWorkers int) ([]PsContainerOutput, error) {
+	var (
+		filterFuncs      []libpod.ContainerFilter
+		outputContainers []*libpod.Container
+	)
+
+	if len(filters) > 0 {
+		for _, f := range filters {
+			filterSplit := strings.SplitN(f, "=", 2)
+			if len(filterSplit) < 2 {
+				return nil, errors.Errorf("filter input must be in the form of filter=value: %s is invalid", f)
+			}
+			generatedFunc, err := r.GenerateContainerFilterFuncs(filterSplit[0], filterSplit[1])
+			if err != nil {
+				return nil, errors.Wrapf(err, "invalid filter")
+			}
+			filterFuncs = append(filterFuncs, generatedFunc)
+		}
+	}
+	if !opts.Latest {
+		// Get all containers
+		containers, err := r.GetContainers(filterFuncs...)
+		if err != nil {
+			return nil, err
+		}
+
+		// We only want the last few containers
+		if opts.Last > 0 && opts.Last <= len(containers) {
+			return nil, errors.Errorf("--last not yet supported")
+		} else {
+			outputContainers = containers
+		}
+	} else {
+		// Get just the latest container
+		// Ignore filters
+		latestCtr, err := r.GetLatestContainer()
+		if err != nil {
+			return nil, err
+		}
+
+		outputContainers = []*libpod.Container{latestCtr}
+	}
+
+	pss := PBatch(outputContainers, maxWorkers, opts)
+	return pss, nil
+}
+
 // PBatch is performs batch operations on a container in parallel. It spawns the number of workers
 // relative to the the number of parallel operations desired.
 func PBatch(containers []*libpod.Container, workers int, opts PsOptions) []PsContainerOutput {

diff --git a/cmd/podman/varlink/io.podman.varlink b/cmd/podman/varlink/io.podman.varlink
@@ -133,6 +133,47 @@ type ContainerStats (
     pids: int
 )
 
+type PsOpts (
+    all: bool,
+    filters: ?[]string,
+    last: ?int,
+    latest: ?bool,
+    noTrunc: ?bool,
+	pod: ?bool,
+	quiet: ?bool,
+	sort: ?string,
+	sync: ?bool
+)
+
+type PsContainer (
+    id: string,
+    image: string,
+    command: string,
+    created: string,
+    ports: string,
+    names: string,
+    isInfra: bool,
+    status: string,
+    state: string,
+    pidNum: int,
+    rootFsSize: int,
+    rwSize: int,
+    pod: string,
+    createdAt: string,
+    exitedAt: string,
+    startedAt: string,
+    labels: [string]string,
+    nsPid: string,
+    cgroup: string,
+    ipc: string,
+    mnt: string,
+    net: string,
+    pidNs: string,
+    user: string,
+    uts: string,
+    mounts: string
+)
+
 # ContainerMount describes the struct for mounts in a container
 type ContainerMount (
     destination: string,
@@ -474,6 +515,8 @@ method GetInfo() -> (info: PodmanInfo)
 # See also [GetContainer](#GetContainer).
 method ListContainers() -> (containers: []Container)
 
+method Ps(opts: PsOpts) -> (containers: []PsContainer)
+
 # GetContainer returns information about a single container.  If a container
 # with the given id doesn't exist, a [ContainerNotFound](#ContainerNotFound)
 # error will be returned.  See also [ListContainers](ListContainers) and