1 files changed, 26 insertions, 0 deletions
diff --git a/libpod/network/netavark/network.go b/libpod/network/netavark/network.go
index aa7dc8183..cd6db4f58 100644
--- a/libpod/network/netavark/network.go
+++ b/libpod/network/netavark/network.go
@@ -13,6 +13,7 @@ import (
 	"github.com/containers/podman/v3/libpod/define"
 	"github.com/containers/podman/v3/libpod/network/internal/util"
 	"github.com/containers/podman/v3/libpod/network/types"
+	pkgutil "github.com/containers/podman/v3/pkg/util"
 	"github.com/containers/storage/pkg/lockfile"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
@@ -30,6 +31,9 @@ type netavarkNetwork struct {
 	// defaultSubnet is the default subnet for the default network.
 	defaultSubnet types.IPNet
 
+	// ipamDBPath is the path to the ip allocation bolt db
+	ipamDBPath string
+
 	// isMachine describes whenever podman runs in a podman machine environment.
 	isMachine bool
 
@@ -50,6 +54,10 @@ type InitConfig struct {
 	// NetavarkBinary is the path to the netavark binary.
 	NetavarkBinary string
 
+	// IPAMDBPath is the path to the ipam database. This should be on a tmpfs.
+	// If empty defaults to XDG_RUNTIME_DIR/netavark/ipam.db or /run/netavark/ipam.db as root.
+	IPAMDBPath string
+
 	// DefaultNetwork is the name for the default network.
 	DefaultNetwork string
 	// DefaultSubnet is the default subnet for the default network.
@@ -85,9 +93,27 @@ func NewNetworkInterface(conf InitConfig) (types.ContainerNetwork, error) {
 		return nil, errors.Wrap(err, "failed to parse default subnet")
 	}
 
+	ipamdbPath := conf.IPAMDBPath
+	if ipamdbPath == "" {
+		runDir, err := pkgutil.GetRuntimeDir()
+		if err != nil {
+			return nil, err
+		}
+		// as root runtimeDir is empty so use /run
+		if runDir == "" {
+			runDir = "/run"
+		}
+		ipamdbPath = filepath.Join(runDir, "netavark")
+		if err := os.MkdirAll(ipamdbPath, 0700); err != nil {
+			return nil, errors.Wrap(err, "failed to create ipam db path")
+		}
+		ipamdbPath = filepath.Join(ipamdbPath, "ipam.db")
+	}
+
 	n := &netavarkNetwork{
 		networkConfigDir: conf.NetworkConfigDir,
 		netavarkBinary:   conf.NetavarkBinary,
+		ipamDBPath:       ipamdbPath,
 		defaultNetwork:   defaultNetworkName,
 		defaultSubnet:    defaultNet,
 		isMachine:        conf.IsMachine,