mirror of https://github.com/k3d-io/k3d
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
2.1 KiB
65 lines
2.1 KiB
/*
|
|
Copyright © 2020-2023 The k3d Author(s)
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
*/
|
|
package client
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
l "github.com/k3d-io/k3d/v5/pkg/logger"
|
|
k3drt "github.com/k3d-io/k3d/v5/pkg/runtimes"
|
|
k3d "github.com/k3d-io/k3d/v5/pkg/types"
|
|
"go4.org/netipx"
|
|
|
|
"net/netip"
|
|
)
|
|
|
|
// GetIP checks a given network for a free IP and returns it, if possible
|
|
func GetIP(ctx context.Context, runtime k3drt.Runtime, network *k3d.ClusterNetwork) (netip.Addr, error) {
|
|
network, err := runtime.GetNetwork(ctx, network)
|
|
if err != nil {
|
|
return netip.Addr{}, fmt.Errorf("runtime failed to get network '%s': %w", network.Name, err)
|
|
}
|
|
|
|
var ipsetbuilder netipx.IPSetBuilder
|
|
|
|
ipsetbuilder.AddPrefix(network.IPAM.IPPrefix)
|
|
|
|
for _, ipused := range network.IPAM.IPsUsed {
|
|
ipsetbuilder.Remove(ipused)
|
|
}
|
|
|
|
// exclude first and last address
|
|
ipsetbuilder.Remove(network.IPAM.IPPrefix.Addr())
|
|
ipsetbuilder.Remove(netipx.PrefixLastIP(network.IPAM.IPPrefix))
|
|
|
|
ipset, err := ipsetbuilder.IPSet()
|
|
if err != nil {
|
|
return netip.Addr{}, err
|
|
}
|
|
|
|
ip := ipset.Ranges()[0].From()
|
|
|
|
l.Log().Debugf("Found free IP %s in network %s", ip.String(), network.Name)
|
|
|
|
return ip, nil
|
|
}
|
|
|