add network prune

add the ability to prune unused cni networks.  filters are not implemented
but included both compat and podman api endpoints.

Fixes :#8673

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

3 files changed, 99 insertions, 0 deletions

diff --git a/pkg/bindings/network/network.go b/pkg/bindings/network/network.go
index 8debeee84..428e60cf2 100644
--- a/pkg/bindings/network/network.go
+++ b/pkg/bindings/network/network.go
@@ -180,3 +180,21 @@ func Exists(ctx context.Context, nameOrID string, options *ExistsOptions) (bool,
 	}
 	return response.IsSuccess(), nil
 }
+
+// Prune removes unused CNI networks
+func Prune(ctx context.Context, options *PruneOptions) ([]*entities.NetworkPruneReport, error) {
+	// TODO Filters is not implemented
+	var (
+		prunedNetworks []*entities.NetworkPruneReport
+	)
+	conn, err := bindings.GetClient(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	response, err := conn.DoRequest(nil, http.MethodPost, "/networks/prune", nil, nil)
+	if err != nil {
+		return nil, err
+	}
+	return prunedNetworks, response.Process(&prunedNetworks)
+}
diff --git a/pkg/bindings/network/types.go b/pkg/bindings/network/types.go
index 91cbcf044..47dce67c7 100644
--- a/pkg/bindings/network/types.go
+++ b/pkg/bindings/network/types.go
@@ -74,3 +74,9 @@ type ConnectOptions struct {
 // if a network exists
 type ExistsOptions struct {
 }
+
+//go:generate go run ../generator/generator.go PruneOptions
+// PruneOptions are optional options for removing unused
+// CNI networks
+type PruneOptions struct {
+}
diff --git a/pkg/bindings/network/types_prune_options.go b/pkg/bindings/network/types_prune_options.go
new file mode 100644
index 000000000..c56dcd0d3
--- /dev/null
+++ b/pkg/bindings/network/types_prune_options.go
@@ -0,0 +1,75 @@
+package network
+
+import (
+	"net/url"
+	"reflect"
+	"strings"
+
+	"github.com/containers/podman/v2/pkg/bindings/util"
+	jsoniter "github.com/json-iterator/go"
+	"github.com/pkg/errors"
+)
+
+/*
+This file is generated automatically by go generate.  Do not edit.
+*/
+
+// Changed
+func (o *PruneOptions) Changed(fieldName string) bool {
+	r := reflect.ValueOf(o)
+	value := reflect.Indirect(r).FieldByName(fieldName)
+	return !value.IsNil()
+}
+
+// ToParams
+func (o *PruneOptions) ToParams() (url.Values, error) {
+	params := url.Values{}
+	if o == nil {
+		return params, nil
+	}
+	json := jsoniter.ConfigCompatibleWithStandardLibrary
+	s := reflect.ValueOf(o)
+	if reflect.Ptr == s.Kind() {
+		s = s.Elem()
+	}
+	sType := s.Type()
+	for i := 0; i < s.NumField(); i++ {
+		fieldName := sType.Field(i).Name
+		if !o.Changed(fieldName) {
+			continue
+		}
+		fieldName = strings.ToLower(fieldName)
+		f := s.Field(i)
+		if reflect.Ptr == f.Kind() {
+			f = f.Elem()
+		}
+		switch {
+		case util.IsSimpleType(f):
+			params.Set(fieldName, util.SimpleTypeToParam(f))
+		case f.Kind() == reflect.Slice:
+			for i := 0; i < f.Len(); i++ {
+				elem := f.Index(i)
+				if util.IsSimpleType(elem) {
+					params.Add(fieldName, util.SimpleTypeToParam(elem))
+				} else {
+					return nil, errors.New("slices must contain only simple types")
+				}
+			}
+		case f.Kind() == reflect.Map:
+			lowerCaseKeys := make(map[string][]string)
+			iter := f.MapRange()
+			for iter.Next() {
+				lowerCaseKeys[iter.Key().Interface().(string)] = iter.Value().Interface().([]string)
+
+			}
+			s, err := json.MarshalToString(lowerCaseKeys)
+			if err != nil {
+				return nil, err
+			}
+
+			params.Set(fieldName, s)
+		}
+
+	}
+	return params, nil
+}