mirror of https://github.com/k3s-io/k3s.git
91 lines
2.1 KiB
Go
91 lines
2.1 KiB
Go
//go:build windows && !no_embedded_executor
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// +build windows,!no_embedded_executor
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package executor
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import (
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"encoding/json"
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"os"
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"os/exec"
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"strings"
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"time"
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"github.com/Microsoft/hcsshim"
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"github.com/sirupsen/logrus"
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// registering k3s cloud provider
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_ "github.com/k3s-io/k3s/pkg/cloudprovider"
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daemonconfig "github.com/k3s-io/k3s/pkg/daemons/config"
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)
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const (
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networkName = "flannel.4096"
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)
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type SourceVipResponse struct {
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IP4 struct {
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IP string `json:"ip"`
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} `json:"ip4"`
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}
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func platformKubeProxyArgs(nodeConfig *daemonconfig.Node) map[string]string {
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argsMap := map[string]string{}
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argsMap["network-name"] = networkName
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if sourceVip := waitForSourceVip(networkName, nodeConfig); sourceVip != "" {
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argsMap["source-vip"] = sourceVip
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}
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return argsMap
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}
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func waitForSourceVip(networkName string, nodeConfig *daemonconfig.Node) string {
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for range time.Tick(time.Second * 5) {
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network, err := hcsshim.GetHNSNetworkByName(networkName)
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if err != nil {
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logrus.WithError(err).Warningf("can't find HNS network, retrying %s", networkName)
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continue
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}
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if network.ManagementIP == "" {
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logrus.WithError(err).Warningf("wait for management IP, retrying %s", networkName)
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continue
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}
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subnet := network.Subnets[0].AddressPrefix
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configData := `{
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"cniVersion": "0.2.0",
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"name": "vxlan0",
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"ipam": {
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"type": "host-local",
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"ranges": [[{"subnet":"` + subnet + `"}]],
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"dataDir": "/var/lib/cni/networks"
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}
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}`
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cmd := exec.Command("host-local.exe")
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cmd.Env = append(os.Environ(),
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"CNI_COMMAND=ADD",
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"CNI_CONTAINERID=dummy",
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"CNI_NETNS=dummy",
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"CNI_IFNAME=dummy",
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"CNI_PATH="+nodeConfig.AgentConfig.CNIBinDir,
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)
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cmd.Stdin = strings.NewReader(configData)
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out, err := cmd.Output()
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if err != nil {
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logrus.WithError(err).Warning("Failed to execute host-local.exe")
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continue
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}
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var sourceVipResp SourceVipResponse
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err = json.Unmarshal(out, &sourceVipResp)
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if err != nil {
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logrus.WithError(err).Warning("Failed to unmarshal sourceVip response")
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continue
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}
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return strings.TrimSpace(strings.Split(sourceVipResp.IP4.IP, "/")[0])
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}
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return ""
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}
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