summaryrefslogtreecommitdiff
path: root/pkg
diff options
context:
space:
mode:
Diffstat (limited to 'pkg')
-rw-r--r--pkg/bindings/pods/pods.go36
-rw-r--r--pkg/bindings/test/containers_test.go6
-rw-r--r--pkg/bindings/test/pods_test.go30
-rw-r--r--pkg/domain/entities/engine_container.go1
-rw-r--r--pkg/domain/entities/pods.go10
-rw-r--r--pkg/domain/infra/abi/pods.go22
-rw-r--r--pkg/domain/infra/tunnel/pods.go16
7 files changed, 115 insertions, 6 deletions
diff --git a/pkg/bindings/pods/pods.go b/pkg/bindings/pods/pods.go
index bb0abebc4..ae87c00e9 100644
--- a/pkg/bindings/pods/pods.go
+++ b/pkg/bindings/pods/pods.go
@@ -8,6 +8,7 @@ import (
"strings"
"github.com/containers/libpod/libpod"
+ "github.com/containers/libpod/pkg/api/handlers"
"github.com/containers/libpod/pkg/bindings"
"github.com/containers/libpod/pkg/domain/entities"
"github.com/containers/libpod/pkg/specgen"
@@ -213,9 +214,38 @@ func Stop(ctx context.Context, nameOrID string, timeout *int) (*entities.PodStop
return &report, response.Process(&report)
}
-func Top() error {
- // TODO
- return bindings.ErrNotImplemented // nolint:typecheck
+// Top gathers statistics about the running processes in a pod. The nameOrID can be a pod name
+// or a partial/full ID. The descriptors allow for specifying which data to collect from each process.
+func Top(ctx context.Context, nameOrID string, descriptors []string) ([]string, error) {
+ conn, err := bindings.GetClient(ctx)
+ if err != nil {
+ return nil, err
+ }
+ params := url.Values{}
+
+ if len(descriptors) > 0 {
+ // flatten the slice into one string
+ params.Set("ps_args", strings.Join(descriptors, ","))
+ }
+ response, err := conn.DoRequest(nil, http.MethodGet, "/pods/%s/top", params, nameOrID)
+ if err != nil {
+ return nil, err
+ }
+
+ body := handlers.PodTopOKBody{}
+ if err = response.Process(&body); err != nil {
+ return nil, err
+ }
+
+ // handlers.PodTopOKBody{} returns a slice of slices where each cell in the top table is an item.
+ // In libpod land, we're just using a slice with cells being split by tabs, which allows for an idiomatic
+ // usage of the tabwriter.
+ topOutput := []string{strings.Join(body.Titles, "\t")}
+ for _, out := range body.Processes {
+ topOutput = append(topOutput, strings.Join(out, "\t"))
+ }
+
+ return topOutput, err
}
// Unpause unpauses all paused containers in a Pod.
diff --git a/pkg/bindings/test/containers_test.go b/pkg/bindings/test/containers_test.go
index 9dd9cb707..a31181958 100644
--- a/pkg/bindings/test/containers_test.go
+++ b/pkg/bindings/test/containers_test.go
@@ -387,15 +387,15 @@ var _ = Describe("Podman containers ", func() {
Expect(err).To(BeNil())
// By name
- output, err := containers.Top(bt.conn, name, nil)
+ _, err = containers.Top(bt.conn, name, nil)
Expect(err).To(BeNil())
// By id
- output, err = containers.Top(bt.conn, cid, nil)
+ _, err = containers.Top(bt.conn, cid, nil)
Expect(err).To(BeNil())
// With descriptors
- output, err = containers.Top(bt.conn, cid, []string{"user,pid,hpid"})
+ output, err := containers.Top(bt.conn, cid, []string{"user,pid,hpid"})
Expect(err).To(BeNil())
header := strings.Split(output[0], "\t")
for _, d := range []string{"USER", "PID", "HPID"} {
diff --git a/pkg/bindings/test/pods_test.go b/pkg/bindings/test/pods_test.go
index 0f786e341..2599ec7ef 100644
--- a/pkg/bindings/test/pods_test.go
+++ b/pkg/bindings/test/pods_test.go
@@ -2,6 +2,7 @@ package test_bindings
import (
"net/http"
+ "strings"
"time"
"github.com/containers/libpod/libpod/define"
@@ -319,4 +320,33 @@ var _ = Describe("Podman pods", func() {
Expect(err).To(BeNil())
Expect(exists).To(BeTrue())
})
+
+ // Test validates the pod top bindings
+ It("pod top", func() {
+ var name string = "podA"
+
+ bt.Podcreate(&name)
+ _, err := pods.Start(bt.conn, name)
+ Expect(err).To(BeNil())
+
+ // By name
+ _, err = pods.Top(bt.conn, name, nil)
+ Expect(err).To(BeNil())
+
+ // With descriptors
+ output, err := pods.Top(bt.conn, name, []string{"user,pid,hpid"})
+ Expect(err).To(BeNil())
+ header := strings.Split(output[0], "\t")
+ for _, d := range []string{"USER", "PID", "HPID"} {
+ Expect(d).To(BeElementOf(header))
+ }
+
+ // With bogus ID
+ _, err = pods.Top(bt.conn, "IdoNotExist", nil)
+ Expect(err).ToNot(BeNil())
+
+ // With bogus descriptors
+ _, err = pods.Top(bt.conn, name, []string{"Me,Neither"})
+ Expect(err).ToNot(BeNil())
+ })
})
diff --git a/pkg/domain/entities/engine_container.go b/pkg/domain/entities/engine_container.go
index fceed1003..f78e10d49 100644
--- a/pkg/domain/entities/engine_container.go
+++ b/pkg/domain/entities/engine_container.go
@@ -24,6 +24,7 @@ type ContainerEngine interface {
PodStop(ctx context.Context, namesOrIds []string, options PodStopOptions) ([]*PodStopReport, error)
PodRm(ctx context.Context, namesOrIds []string, options PodRmOptions) ([]*PodRmReport, error)
PodUnpause(ctx context.Context, namesOrIds []string, options PodunpauseOptions) ([]*PodUnpauseReport, error)
+ PodTop(ctx context.Context, options PodTopOptions) (*StringSliceReport, error)
VolumeCreate(ctx context.Context, opts VolumeCreateOptions) (*IdOrNameResponse, error)
VolumeInspect(ctx context.Context, namesOrIds []string, opts VolumeInspectOptions) ([]*VolumeInspectReport, error)
diff --git a/pkg/domain/entities/pods.go b/pkg/domain/entities/pods.go
index efda17d65..d92d1bc7a 100644
--- a/pkg/domain/entities/pods.go
+++ b/pkg/domain/entities/pods.go
@@ -141,3 +141,13 @@ func (p PodCreateOptions) ToPodSpecGen(s *specgen.PodSpecGenerator) {
// Cgroup
s.CgroupParent = p.CGroupParent
}
+
+type PodTopOptions struct {
+ // CLI flags.
+ ListDescriptors bool
+ Latest bool
+
+ // Options for the API.
+ Descriptors []string
+ NameOrID string
+}
diff --git a/pkg/domain/infra/abi/pods.go b/pkg/domain/infra/abi/pods.go
index 619e973cf..8abcc6e4b 100644
--- a/pkg/domain/infra/abi/pods.go
+++ b/pkg/domain/infra/abi/pods.go
@@ -250,3 +250,25 @@ func (ic *ContainerEngine) PodCreate(ctx context.Context, opts entities.PodCreat
}
return &entities.PodCreateReport{Id: pod.ID()}, nil
}
+
+func (ic *ContainerEngine) PodTop(ctx context.Context, options entities.PodTopOptions) (*entities.StringSliceReport, error) {
+ var (
+ pod *libpod.Pod
+ err error
+ )
+
+ // Look up the pod.
+ if options.Latest {
+ pod, err = ic.Libpod.GetLatestPod()
+ } else {
+ pod, err = ic.Libpod.LookupPod(options.NameOrID)
+ }
+ if err != nil {
+ return nil, errors.Wrap(err, "unable to lookup requested container")
+ }
+
+ // Run Top.
+ report := &entities.StringSliceReport{}
+ report.Value, err = pod.GetPodPidInformation(options.Descriptors)
+ return report, err
+}
diff --git a/pkg/domain/infra/tunnel/pods.go b/pkg/domain/infra/tunnel/pods.go
index 4894874e5..9561a9807 100644
--- a/pkg/domain/infra/tunnel/pods.go
+++ b/pkg/domain/infra/tunnel/pods.go
@@ -6,6 +6,7 @@ import (
"github.com/containers/libpod/pkg/bindings/pods"
"github.com/containers/libpod/pkg/domain/entities"
"github.com/containers/libpod/pkg/specgen"
+ "github.com/pkg/errors"
)
func (ic *ContainerEngine) PodExists(ctx context.Context, nameOrId string) (*entities.BoolReport, error) {
@@ -177,3 +178,18 @@ func (ic *ContainerEngine) PodCreate(ctx context.Context, opts entities.PodCreat
opts.ToPodSpecGen(podSpec)
return pods.CreatePodFromSpec(ic.ClientCxt, podSpec)
}
+
+func (ic *ContainerEngine) PodTop(ctx context.Context, options entities.PodTopOptions) (*entities.StringSliceReport, error) {
+ switch {
+ case options.Latest:
+ return nil, errors.New("latest is not supported")
+ case options.NameOrID == "":
+ return nil, errors.New("NameOrID must be specified")
+ }
+
+ topOutput, err := pods.Top(ic.ClientCxt, options.NameOrID, options.Descriptors)
+ if err != nil {
+ return nil, err
+ }
+ return &entities.StringSliceReport{Value: topOutput}, nil
+}