Add volume filters to system prune

This change was missed in pull/8689. Now that volume pruneing supports
filters system pruneing can pass its filters down to the volume
pruneing. Additionally this change adds tests for the following components

* podman system prune subcommand with `--volumes` & `--filter` options
* apiv2 api tests for `/system/` and `/libpod/system` endpoints

Relates to #8453, #8672

Signed-off-by: Baron Lenardson <lenardson.baron@gmail.com>

4 files changed, 71 insertions, 6 deletions

diff --git a/pkg/bindings/test/system_test.go b/pkg/bindings/test/system_test.go
index 5cb0f9125..25fda5575 100644
--- a/pkg/bindings/test/system_test.go
+++ b/pkg/bindings/test/system_test.go
@@ -158,4 +158,61 @@ var _ = Describe("Podman system", func() {
 		// Volume should be pruned now as flag set true
 		Expect(len(systemPruneResponse.VolumePruneReport)).To(Equal(1))
 	})
+
+	It("podman system prune running alpine container volume prune --filter", func() {
+		// Start a pod and leave it running
+		_, err := pods.Start(bt.conn, newpod, nil)
+		Expect(err).To(BeNil())
+
+		// Start and stop a container to enter in exited state.
+		var name = "top"
+		_, err = bt.RunTopContainer(&name, bindings.PFalse, nil)
+		Expect(err).To(BeNil())
+		err = containers.Stop(bt.conn, name, nil)
+		Expect(err).To(BeNil())
+
+		// Start second container and leave in running
+		var name2 = "top2"
+		_, err = bt.RunTopContainer(&name2, bindings.PFalse, nil)
+		Expect(err).To(BeNil())
+
+		// Adding an unused volume should work
+		_, err = volumes.Create(bt.conn, entities.VolumeCreateOptions{}, nil)
+		Expect(err).To(BeNil())
+
+		// Adding an unused volume with label should work
+		_, err = volumes.Create(bt.conn, entities.VolumeCreateOptions{Label: map[string]string{
+			"label1": "value1",
+		}}, nil)
+		Expect(err).To(BeNil())
+
+		f := make(map[string][]string)
+		f["label"] = []string{"label1=idontmatch"}
+
+		options := new(system.PruneOptions).WithAll(true).WithVolumes(true).WithFilters(f)
+		systemPruneResponse, err := system.Prune(bt.conn, options)
+		Expect(err).To(BeNil())
+		Expect(len(systemPruneResponse.PodPruneReport)).To(Equal(0))
+		// TODO fix system filter handling so all components can handle filters
+		//      This check **should** be "Equal(0)" since we are passing label
+		//      filters however the Prune function doesn't seem to pass filters
+		//      to each component.
+		Expect(len(systemPruneResponse.ContainerPruneReport.ID)).To(Equal(1))
+		Expect(len(systemPruneResponse.ImagePruneReport.Report.Id)).
+			To(BeNumerically(">", 0))
+		// Alpine image should not be pruned as used by running container
+		Expect(systemPruneResponse.ImagePruneReport.Report.Id).
+			ToNot(ContainElement("docker.io/library/alpine:latest"))
+		// Volume shouldn't be pruned because the PruneOptions filters doesn't match
+		Expect(len(systemPruneResponse.VolumePruneReport)).To(Equal(0))
+
+		// Fix filter and re prune
+		f["label"] = []string{"label1=value1"}
+		options = new(system.PruneOptions).WithAll(true).WithVolumes(true).WithFilters(f)
+		systemPruneResponse, err = system.Prune(bt.conn, options)
+		Expect(err).To(BeNil())
+
+		// Volume should be pruned because the PruneOptions filters now match
+		Expect(len(systemPruneResponse.VolumePruneReport)).To(Equal(1))
+	})
 })
diff --git a/pkg/domain/entities/system.go b/pkg/domain/entities/system.go
index 5266dc4cf..d5118f6a8 100644
--- a/pkg/domain/entities/system.go
+++ b/pkg/domain/entities/system.go
@@ -17,9 +17,9 @@ type ServiceOptions struct {
 
 // SystemPruneOptions provides options to prune system.
 type SystemPruneOptions struct {
-	All    bool
-	Volume bool
-	ContainerPruneOptions
+	All     bool
+	Volume  bool
+	Filters map[string][]string `json:"filters" schema:"filters"`
 }
 
 // SystemPruneReport provides report after system prune is executed.
diff --git a/pkg/domain/infra/abi/system.go b/pkg/domain/infra/abi/system.go
index 17faa7fff..5f6c95d4f 100644
--- a/pkg/domain/infra/abi/system.go
+++ b/pkg/domain/infra/abi/system.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"io/ioutil"
+	"net/url"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -180,7 +181,12 @@ func (ic *ContainerEngine) SystemPrune(ctx context.Context, options entities.Sys
 			found = true
 		}
 		systemPruneReport.PodPruneReport = append(systemPruneReport.PodPruneReport, podPruneReport...)
-		containerPruneReport, err := ic.ContainerPrune(ctx, options.ContainerPruneOptions)
+
+		// TODO: Figure out cleaner way to handle all of the different PruneOptions
+		containerPruneOptions := entities.ContainerPruneOptions{}
+		containerPruneOptions.Filters = (url.Values)(options.Filters)
+
+		containerPruneReport, err := ic.ContainerPrune(ctx, containerPruneOptions)
 		if err != nil {
 			return nil, err
 		}
@@ -217,7 +223,9 @@ func (ic *ContainerEngine) SystemPrune(ctx context.Context, options entities.Sys
 			systemPruneReport.ImagePruneReport.Report.Id = append(systemPruneReport.ImagePruneReport.Report.Id, results...)
 		}
 		if options.Volume {
-			volumePruneReport, err := ic.pruneVolumesHelper(ctx, nil)
+			volumePruneOptions := entities.VolumePruneOptions{}
+			volumePruneOptions.Filters = (url.Values)(options.Filters)
+			volumePruneReport, err := ic.VolumePrune(ctx, volumePruneOptions)
 			if err != nil {
 				return nil, err
 			}
diff --git a/pkg/domain/infra/tunnel/system.go b/pkg/domain/infra/tunnel/system.go
index 1e4b2e0b4..9013d44c2 100644
--- a/pkg/domain/infra/tunnel/system.go
+++ b/pkg/domain/infra/tunnel/system.go
@@ -20,7 +20,7 @@ func (ic *ContainerEngine) SetupRootless(_ context.Context, cmd *cobra.Command)
 
 // SystemPrune prunes unused data from the system.
 func (ic *ContainerEngine) SystemPrune(ctx context.Context, opts entities.SystemPruneOptions) (*entities.SystemPruneReport, error) {
-	options := new(system.PruneOptions).WithAll(opts.All).WithVolumes(opts.Volume).WithFilters(opts.ContainerPruneOptions.Filters)
+	options := new(system.PruneOptions).WithAll(opts.All).WithVolumes(opts.Volume).WithFilters(opts.Filters)
 	return system.Prune(ic.ClientCxt, options)
 }