Explicitly remove podman volume and network

The --filter and --label functionality was broken,
in earlier versions of podman (before version 3.0)

Author: afbjorklund

cmd/minikube/cmd/delete.go

@@ -255,11 +255,27 @@ func deletePossibleKicLeftOver(cname string, driverName string) {
 		}
 	}
 
+	if bin == oci.Podman {
+		// podman volume does not support --filter
+		err := oci.RemoveVolume(bin, cname)
+		if err != nil {
+			klog.Warningf("error deleting volume %s (might be okay).'\n:%v", cname, err)
+		}
+	}
+
 	errs := oci.DeleteAllVolumesByLabel(bin, delLabel)
 	if errs != nil { // it will not error if there is nothing to delete
 		klog.Warningf("error deleting volumes (might be okay).\nTo see the list of volumes run: 'docker volume ls'\n:%v", errs)
 	}
 
+	if bin == oci.Podman {
+		// podman network does not support --filter
+		err := oci.RemoveNetwork(bin, cname)
+		if err != nil {
+			klog.Warningf("error deleting network %s (might be okay).'\n:%v", cname, err)
+		}
+	}
+
 	errs = oci.DeleteKICNetworks(bin)
 	if errs != nil {
 		klog.Warningf("error deleting leftover networks (might be okay).\nTo see the list of networks: 'docker network ls'\n:%v", errs)

pkg/drivers/kic/oci/errors.go

@@ -54,6 +54,9 @@ var ErrDaemonInfo = errors.New("daemon info not responding")
 // ErrInsufficientDockerStorage is thrown when there is not more storage for docker
 var ErrInsufficientDockerStorage = &FailFastError{errors.New("insufficient docker storage, no space left on device")}
 
+// ErrVolumeNotFound is when given volume was not found
+var ErrVolumeNotFound = errors.New("kic volume not found")
+
 // ErrNetworkSubnetTaken is thrown when a subnet is taken by another network
 var ErrNetworkSubnetTaken = errors.New("subnet is taken")
 

pkg/drivers/kic/oci/volumes.go

@@ -19,6 +19,7 @@ package oci
 import (
 	"bufio"
 	"bytes"
+	"encoding/json"
 	"fmt"
 	"os/exec"
 	"runtime"
@@ -29,6 +30,47 @@ import (
 	"k8s.io/klog/v2"
 )
 
+// RemoveVolume removes a volume
+func RemoveVolume(ociBin string, name string) error {
+	if !volumeExists(ociBin, name) {
+		return nil
+	}
+	rr, err := runCmd(exec.Command(ociBin, "volume", "rm", name))
+	if err != nil {
+		if strings.Contains(rr.Output(), "No such volume") ||
+			strings.Contains(rr.Output(), "no such volume") {
+			return ErrVolumeNotFound
+		}
+	}
+
+	return err
+}
+
+func volumeExists(ociBin string, name string) bool {
+	_, err := containerVolumeInspect(ociBin, name)
+	if err != nil && !errors.Is(err, ErrVolumeNotFound) { // log unexpected error
+		klog.Warningf("Error inspecting docker volume %s: %v", name, err)
+	}
+	return err == nil
+}
+
+func containerVolumeInspect(ociBin string, name string) (interface{}, error) {
+	var info interface{}
+	cmd := exec.Command(ociBin, "volume", "inspect", name)
+	rr, err := runCmd(cmd)
+	if err != nil {
+		if strings.Contains(rr.Output(), "No such volume") ||
+			strings.Contains(rr.Output(), "no such volume") {
+			return info, ErrVolumeNotFound
+		}
+		return info, err
+	}
+
+	err = json.Unmarshal(rr.Stdout.Bytes(), &info)
+
+	return info, err
+}
+
 // DeleteAllVolumesByLabel deletes all volumes that have a specific label
 // if there is no volume to delete it will return nil
 func DeleteAllVolumesByLabel(ociBin string, label string, warnSlow ...bool) []error {