Wire most of the work from today together

vm/net.go

@@ -0,0 +1,37 @@
+package vm
+
+import (
+	"context"
+	"fmt"
+	"net"
+
+	"github.com/AlexSSD7/linsk/sshutil"
+	"github.com/AlexSSD7/linsk/utils"
+	"github.com/alessio/shellescape"
+	"github.com/pkg/errors"
+)
+
+func (vi *VM) ConfigureInterfaceStaticNet(ctx context.Context, iface string, cidr string) error {
+	ip, _, err := net.ParseCIDR(cidr)
+	if err != nil {
+		return errors.Wrap(err, "invalid cidr")
+	}
+
+	if !utils.IsIPv6IP(ip) {
+		return fmt.Errorf("ipv6 addresses accepted only (have '%v')", ip)
+	}
+
+	sc, err := vi.DialSSH()
+	if err != nil {
+		return errors.Wrap(err, "dial ssh")
+	}
+
+	defer func() { _ = sc.Close() }()
+
+	_, err = sshutil.RunSSHCmd(ctx, sc, "ifconfig "+shellescape.Quote(iface)+" up && ip addr add "+shellescape.Quote(cidr)+" dev "+shellescape.Quote(iface))
+	if err != nil {
+		return errors.Wrap(err, "run net conf cmds")
+	}
+
+	return nil
+}