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infrakit: Add LogicalID -> IP -> UUID mapping
If the LogicalID passed in is a IP address, turn this into a UUID and pass it to HyperKit. This will cause VPNKit to assign the IP address the VM. Note: This currently requires a custom version of VPNKit Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
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parent
569a5a4ba8
commit
971db3c0c3
@ -4,6 +4,7 @@ import (
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"errors"
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"fmt"
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"io/ioutil"
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"net"
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"os"
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"path"
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@ -70,11 +71,23 @@ func (p hyperkitPlugin) Provision(spec instance.Spec) (*instance.ID, error) {
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id := instance.ID(path.Base(instanceDir))
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log.Infof("[%s] New instance", id)
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// The LogicalID may be a IP address. If so, translate it into a
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// magic UUID which cause VPNKit to assign a fixed IP address
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logicalID := string(id)
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uuidStr := ""
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if spec.LogicalID != nil {
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logicalID = string(*spec.LogicalID)
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if ip := net.ParseIP(logicalID); len(ip) > 0 {
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uuid := make([]byte, 16)
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uuid[12] = ip.To4()[0]
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uuid[13] = ip.To4()[1]
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uuid[14] = ip.To4()[2]
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uuid[15] = ip.To4()[3]
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uuidStr = fmt.Sprintf("%x-%x-%x-%x-%x", uuid[0:4], uuid[4:6], uuid[6:8], uuid[8:10], uuid[10:])
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}
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}
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log.Infof("[%s] LogicalID: %s", id, logicalID)
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log.Debugf("[%s] UUID: %s", id, uuidStr)
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// Start a HyperKit instance
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h, err := hyperkit.New(p.HyperKit, instanceDir, p.VPNKitSock, "")
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@ -86,6 +99,7 @@ func (p hyperkitPlugin) Provision(spec instance.Spec) (*instance.ID, error) {
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h.CPUs = int(properties["CPUs"].(float64))
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h.Memory = int(properties["Memory"].(float64))
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h.DiskSize = int(properties["Disk"].(float64))
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h.UUID = uuidStr
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h.UserData = spec.Init
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h.Console = hyperkit.ConsoleFile
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log.Infof("[%s] Booting: %s/%s", id, h.Kernel, h.Initrd)
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