Merge pull request containers#8920 from Luap99/ps-network-filter

podman ps/pod ps add network filter and .Networks format placeholder

cmd/podman/common/completion.go

@@ -982,9 +982,10 @@ func AutocompletePsFilters(cmd *cobra.Command, args []string, toComplete string)
 			return []string{define.HealthCheckHealthy,
 				define.HealthCheckUnhealthy}, cobra.ShellCompDirectiveNoFileComp
 		},
-		"label=":  nil,
-		"exited=": nil,
-		"until=":  nil,
+		"network=": func(s string) ([]string, cobra.ShellCompDirective) { return getNetworks(cmd, s) },
+		"label=":   nil,
+		"exited=":  nil,
+		"until=":   nil,
 	}
 	return completeKeyValues(toComplete, kv)
 }
@@ -1004,7 +1005,8 @@ func AutocompletePodPsFilters(cmd *cobra.Command, args []string, toComplete stri
 		"ctr-status=": func(_ string) ([]string, cobra.ShellCompDirective) {
 			return containerStatuses, cobra.ShellCompDirectiveNoFileComp
 		},
-		"label=": nil,
+		"network=": func(s string) ([]string, cobra.ShellCompDirective) { return getNetworks(cmd, s) },
+		"label=":   nil,
 	}
 	return completeKeyValues(toComplete, kv)
 }

cmd/podman/containers/ps.go

@@ -392,6 +392,11 @@ func (l psReporter) Names() string {
 	return l.ListContainer.Names[0]
 }
 
+// Networks returns the container network names in string format
+func (l psReporter) Networks() string {
+	return strings.Join(l.ListContainer.Networks, ",")
+}
+
 // Ports converts from Portmappings to the string form
 // required by ps
 func (l psReporter) Ports() string {

cmd/podman/pods/ps.go

@@ -191,6 +191,11 @@ func (l ListPodReporter) Labels() map[string]string {
 	return l.ListPodsReport.Labels
 }
 
+// Networks returns the infra container network names in string format
+func (l ListPodReporter) Networks() string {
+	return strings.Join(l.ListPodsReport.Networks, ",")
+}
+
 // NumberOfContainers returns an int representation for
 // the number of containers belonging to the pod
 func (l ListPodReporter) NumberOfContainers() int {

docs/source/markdown/podman-pod-ps.1.md

@@ -72,6 +72,8 @@ Valid placeholders for the Go template are listed below:
 | .Cgroup             | Cgroup path of pod                                                                              |
 | .Created            | Creation time of pod                                                                            |
 | .InfraID            | Pod infra container ID                                                                          |
+| .Networks           | Show all networks connected to the infra container                                              |
+
 #### **--sort**
 
 Sort by created, ID, name, status, or number of containers
@@ -93,6 +95,7 @@ Valid filters are listed below:
 | name       | [Name] Pod's name (accepts regex)                                                     |
 | label      | [Key] or [Key=Value] Label assigned to a container                                    |
 | status     | Pod's status: `stopped`, `running`, `paused`, `exited`, `dead`, `created`, `degraded` |
+| network    | [Network] name or full ID of network                                                  |
 | ctr-names  | Container name within the pod (accepts regex)                                         |
 | ctr-ids    | Container ID within the pod (accepts regex)                                           |
 | ctr-status | Container status within the pod                                                       |

docs/source/markdown/podman-ps.1.md

@@ -58,6 +58,7 @@ Valid filters are listed below:
 | volume          | [VolumeName] or [MountpointDestination] Volume mounted in container              |
 | health          | [Status] healthy or unhealthy                                                    |
 | pod             | [Pod] name or full or partial ID of pod                                          |
+| network         | [Network] name or full ID of network                                             |
 
 
 #### **--format**=*format*
@@ -79,6 +80,7 @@ Valid placeholders for the Go template are listed below:
 | .Ports          | Exposed ports                                    |
 | .Size           | Size of container                                |
 | .Names          | Name of container                                |
+| .Networks       | Show all networks connected to the container     |
 | .Labels         | All the labels assigned to the container         |
 | .Mounts         | Volumes mounted in the container                 |
 

pkg/api/handlers/libpod/pods.go

@@ -43,6 +43,7 @@ func PodCreate(w http.ResponseWriter, r *http.Request) {
 }
 
 func Pods(w http.ResponseWriter, r *http.Request) {
+	runtime := r.Context().Value("runtime").(*libpod.Runtime)
 	decoder := r.Context().Value("decoder").(*schema.Decoder)
 	query := struct {
 		Filters map[string][]string `schema:"filters"`
@@ -55,7 +56,11 @@ func Pods(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	pods, err := utils.GetPods(w, r)
+	containerEngine := abi.ContainerEngine{Libpod: runtime}
+	podPSOptions := entities.PodPSOptions{
+		Filters: query.Filters,
+	}
+	pods, err := containerEngine.PodPs(r.Context(), podPSOptions)
 	if err != nil {
 		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
 		return

pkg/domain/entities/container_ps.go

@@ -43,6 +43,8 @@ type ListContainer struct {
 	// Namespaces the container belongs to.  Requires the
 	// namespace boolean to be true
 	Namespaces ListContainerNamespaces
+	// The network names assigned to the container
+	Networks []string
 	// The process id of the container
 	Pid int
 	// If the container is part of Pod, the Pod ID. Requires the pod

pkg/domain/entities/pods.go

@@ -28,8 +28,10 @@ type ListPodsReport struct {
 	InfraId    string //nolint
 	Name       string
 	Namespace  string
-	Status     string
-	Labels     map[string]string
+	// Network names connected to infra container
+	Networks []string
+	Status   string
+	Labels   map[string]string
 }
 
 type ListPodContainer struct {

pkg/domain/filters/containers.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/containers/podman/v2/libpod"
 	"github.com/containers/podman/v2/libpod/define"
+	"github.com/containers/podman/v2/libpod/network"
 	"github.com/containers/podman/v2/pkg/timetype"
 	"github.com/containers/podman/v2/pkg/util"
 	"github.com/pkg/errors"
@@ -233,6 +234,24 @@ func GenerateContainerFilterFuncs(filter string, filterValues []string, r *libpo
 			}
 			return false
 		}, nil
+	case "network":
+		return func(c *libpod.Container) bool {
+			networks, _, err := c.Networks()
+			// if err or no networks, quick out
+			if err != nil || len(networks) == 0 {
+				return false
+			}
+			for _, net := range networks {
+				netID := network.GetNetworkID(net)
+				for _, val := range filterValues {
+					// match by network name or id
+					if val == net || val == netID {
+						return true
+					}
+				}
+			}
+			return false
+		}, nil
 	}
 	return nil, errors.Errorf("%s is an invalid filter", filter)
 }

pkg/domain/filters/pods.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/containers/podman/v2/libpod"
 	"github.com/containers/podman/v2/libpod/define"
+	"github.com/containers/podman/v2/libpod/network"
 	"github.com/containers/podman/v2/pkg/util"
 	"github.com/pkg/errors"
 )
@@ -134,6 +135,29 @@ func GeneratePodFilterFunc(filter string, filterValues []string) (
 			}
 			return true
 		}, nil
+	case "network":
+		return func(p *libpod.Pod) bool {
+			infra, err := p.InfraContainer()
+			// no infra, quick out
+			if err != nil {
+				return false
+			}
+			networks, _, err := infra.Networks()
+			// if err or no networks, quick out
+			if err != nil || len(networks) == 0 {
+				return false
+			}
+			for _, net := range networks {
+				netID := network.GetNetworkID(net)
+				for _, val := range filterValues {
+					// match by network name or id
+					if val == net || val == netID {
+						return true
+					}
+				}
+			}
+			return false
+		}, nil
 	}
 	return nil, errors.Errorf("%s is an invalid filter", filter)
 }

pkg/domain/infra/abi/pods.go

@@ -333,6 +333,17 @@ func (ic *ContainerEngine) PodPs(ctx context.Context, options entities.PodPSOpti
 		if err != nil {
 			return nil, err
 		}
+		networks := []string{}
+		if len(infraID) > 0 {
+			infra, err := p.InfraContainer()
+			if err != nil {
+				return nil, err
+			}
+			networks, _, err = infra.Networks()
+			if err != nil {
+				return nil, err
+			}
+		}
 		reports = append(reports, &entities.ListPodsReport{
 			Cgroup:     p.CgroupParent(),
 			Containers: lpcs,
@@ -341,6 +352,7 @@ func (ic *ContainerEngine) PodPs(ctx context.Context, options entities.PodPSOpti
 			InfraId:    infraID,
 			Name:       p.Name(),
 			Namespace:  p.Namespace(),
+			Networks:   networks,
 			Status:     status,
 			Labels:     p.Labels(),
 		})

pkg/ps/ps.go

@@ -178,6 +178,11 @@ func ListContainerBatch(rt *libpod.Runtime, ctr *libpod.Container, opts entities
 		return entities.ListContainer{}, err
 	}
 
+	networks, _, err := ctr.Networks()
+	if err != nil {
+		return entities.ListContainer{}, err
+	}
+
 	ps := entities.ListContainer{
 		AutoRemove: ctr.AutoRemove(),
 		Command:    conConfig.Command,
@@ -192,6 +197,7 @@ func ListContainerBatch(rt *libpod.Runtime, ctr *libpod.Container, opts entities
 		Labels:     conConfig.Labels,
 		Mounts:     ctr.UserVolumes(),
 		Names:      []string{conConfig.Name},
+		Networks:   networks,
 		Pid:        pid,
 		Pod:        conConfig.Pod,
 		Ports:      portMappings,