145 lines
3.4 KiB
Go
145 lines
3.4 KiB
Go
package warewulfd
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import (
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"fmt"
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"github.com/hpcng/warewulf/internal/pkg/node"
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"github.com/hpcng/warewulf/internal/pkg/overlay"
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"github.com/hpcng/warewulf/internal/pkg/warewulfconf"
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"github.com/hpcng/warewulf/internal/pkg/wwlog"
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"log"
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"net/http"
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"strconv"
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"strings"
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"text/template"
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)
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type iPxeTemplate struct {
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Message string
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WaitTime string
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Hostname string
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Fqdn string
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ContainerName string
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Hwaddr string
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Ipaddr string
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Port string
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KernelArgs string
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KernelVersion string
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}
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func IpxeSend(w http.ResponseWriter, req *http.Request) {
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url := strings.Split(req.URL.Path, "/")
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var unconfiguredNode bool
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nodeDB, err := node.New()
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if err != nil {
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log.Printf("Could not read node configuration file: %s\n", err)
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w.WriteHeader(503)
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return
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}
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if url[2] == "" {
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log.Printf("ERROR: Bad iPXE request from %s\n", req.RemoteAddr)
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w.WriteHeader(404)
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return
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}
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conf, err := warewulfconf.New()
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "%s\n", err)
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w.WriteHeader(503)
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return
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}
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hwaddr := strings.ReplaceAll(url[2], "-", ":")
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n, err := nodeDB.FindByHwaddr(hwaddr)
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if err != nil {
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// If we failed to find a node, let's see if we can add one...
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var netdev string
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wwlog.Printf(wwlog.VERBOSE, "Node was not found, looking for discoverable nodes...\n")
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n, netdev, err = nodeDB.FindDiscoverableNode()
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if err != nil {
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wwlog.Printf(wwlog.WARN, "No nodes are set as discoverable...\n")
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unconfiguredNode = true
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} else {
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wwlog.Printf(wwlog.INFO, "Adding new configuration to discoverable node: %s\n", n.Id.Get())
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n.NetDevs[netdev].Hwaddr.Set(hwaddr)
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n.Discoverable.SetB(false)
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err := nodeDB.NodeUpdate(n)
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "Could not add discovered configuration for node: %s\n", n.Id.Get())
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unconfiguredNode = true
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} else {
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err := nodeDB.Persist()
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "Could not persist new node configuration while adding node: %s\n", n.Id.Get())
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unconfiguredNode = true
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} else {
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wwlog.Printf(wwlog.INFO, "Building System Overlay:\n")
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_ = overlay.BuildSystemOverlay([]node.NodeInfo{n})
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wwlog.Printf(wwlog.INFO, "Building Runtime Overlay:\n")
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_ = overlay.BuildRuntimeOverlay([]node.NodeInfo{n})
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}
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}
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}
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}
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if unconfiguredNode == true {
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log.Printf("UNCONFIGURED NODE: %15s\n", hwaddr)
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tmpl, err := template.ParseFiles("/etc/warewulf/ipxe/unconfigured.ipxe")
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "%s\n", err)
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return
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}
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var replace iPxeTemplate
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replace.Hwaddr = hwaddr
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err = tmpl.Execute(w, replace)
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "%s\n", err)
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return
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}
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return
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} else {
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log.Printf("IPXE: %15s: %s\n", n.Id.Get(), req.URL.Path)
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ipxeTemplate := fmt.Sprintf("/etc/warewulf/ipxe/%s.ipxe", n.Ipxe.Get())
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tmpl, err := template.ParseFiles(ipxeTemplate)
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "%s\n", err)
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return
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}
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var replace iPxeTemplate
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replace.Fqdn = n.Id.Get()
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replace.Ipaddr = conf.Ipaddr
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replace.Port = strconv.Itoa(conf.Warewulf.Port)
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replace.Hostname = n.Id.Get()
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replace.Hwaddr = url[2]
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replace.ContainerName = n.ContainerName.Get()
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replace.KernelArgs = n.KernelArgs.Get()
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replace.KernelVersion = n.KernelVersion.Get()
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err = tmpl.Execute(w, replace)
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "%s\n", err)
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return
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}
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log.Printf("SEND: %15s: %s\n", n.Id.Get(), ipxeTemplate)
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}
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return
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}
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