func (ws *webServer) generateTemplateForMachine(templateName string, w http.ResponseWriter, r *http.Request) string {
_, macStr := path.Split(r.URL.Path)
mac, err := net.ParseMAC(macStr)
if err != nil {
http.Error(w, fmt.Sprintf(`Error while parsing the mac: %q`, err), 500)
return ""
}
machine, exist := ws.ds.GetMachine(mac)
if !exist {
http.Error(w, "Machine not found", 500)
return ""
}
cc, err := templating.ExecuteTemplateFolder(
path.Join(ws.ds.WorkspacePath(), "config", templateName), machine, r.Host)
if err != nil {
http.Error(w, fmt.Sprintf(`Error while executing the template: %q`, err), 500)
return ""
}
w.Header().Set("Content-Type", "text/plain")
w.Write([]byte(cc))
return cc
}
func (b *HTTPBooter) pxelinuxConfig(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain")
macStr := filepath.Base(r.URL.Path)
errStr := fmt.Sprintf("%s requested a pxelinux config from URL %q, which does not include a correct MAC address", r.RemoteAddr, r.URL)
if !strings.HasPrefix(macStr, "01-") {
logging.Debug("HTTPBOOTER", errStr)
http.Error(w, "Missing MAC address in request", http.StatusBadRequest)
return
}
mac, err := net.ParseMAC(macStr[3:])
if err != nil {
logging.Debug("HTTPBOOTER", errStr)
http.Error(w, "Malformed MAC address in request", http.StatusBadRequest)
return
}
machine, exist := b.datasource.GetMachine(mac)
if !exist {
logging.Debug("HTTPBOOTER", "Machine not found. mac=%s", mac)
http.Error(w, "Machine not found", http.StatusNotFound)
return
}
if _, _, err := net.SplitHostPort(r.Host); err != nil {
r.Host = fmt.Sprintf("%s:%d", r.Host, b.listenAddr.Port)
}
coreOSVersion, _ := b.datasource.CoreOSVersion()
KernelURL := "http://" + r.Host + "/f/" + coreOSVersion + "/kernel"
InitrdURL := "http://" + r.Host + "/f/" + coreOSVersion + "/initrd"
host, _, err := net.SplitHostPort(r.Host)
if err != nil {
logging.Log("HTTPBOOTER", "error in parsing host and port")
http.Error(w, "error in parsing host and port", 500)
return
}
params, err := templating.ExecuteTemplateFolder(
path.Join(b.datasource.WorkspacePath(), "config", "bootparams"), machine, r.Host)
if err != nil {
logging.Log("HTTPBOOTER", `Error while executing the template: %q`, err)
http.Error(w, fmt.Sprintf(`Error while executing the template: %q`, err),
http.StatusInternalServerError)
return
}
if err != nil {
logging.Log("HTTPBOOTER", "error in bootparam template - %s", err.Error())
http.Error(w, "error in bootparam template", 500)
return
}
params = strings.Replace(params, "\n", " ", -1)
Cmdline := fmt.Sprintf(
"cloud-config-url=http://%s:%d/t/cc/%s "+
"coreos.config.url=http://%s:%d/t/ig/%s %s",
host, b.webPort, mac.String(),
host, b.webPort, mac.String(), params)
bootMessage := strings.Replace(b.bootMessageTemplate, "$MAC", macStr, -1)
cfg := fmt.Sprintf(`
SAY %s
DEFAULT linux
LABEL linux
LINUX %s
APPEND initrd=%s %s
`, strings.Replace(bootMessage, "\n", "\nSAY ", -1), KernelURL, InitrdURL, Cmdline)
w.Write([]byte(cfg))
logging.Log("HTTPBOOTER", "Sent pxelinux config to %s (%s)", mac, r.RemoteAddr)
}
func (b *HTTPBooter) pxelinuxConfig(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain")
macStr := filepath.Base(r.URL.Path)
errStr := fmt.Sprintf("%s requested a pxelinux config from URL %q, which does not include a correct MAC address", r.RemoteAddr, r.URL)
if !strings.HasPrefix(macStr, "01-") {
utils.LogAccess(r).WithField("where", "pxe.pxelinuxConfig").Debug(errStr)
http.Error(w, "Missing MAC address in request", http.StatusBadRequest)
return
}
mac, err := net.ParseMAC(macStr[3:])
if err != nil {
utils.LogAccess(r).WithError(err).WithField("where", "pxe.pxelinuxConfig").Debug()
http.Error(w, "Malformed MAC address in request", http.StatusBadRequest)
return
}
machineInterface := b.datasource.MachineInterface(mac)
_, err = machineInterface.Machine(false, nil)
if err != nil {
utils.LogAccess(r).WithError(err).WithField("where", "pxe.pxelinuxConfig").Debug(
"Machine not found")
http.Error(w, "Machine not found", http.StatusNotFound)
return
}
if _, _, err := net.SplitHostPort(r.Host); err != nil {
r.Host = fmt.Sprintf("%s:%d", r.Host, b.listenAddr.Port)
}
coreOSVersion, err := machineInterface.GetVariable(datasource.SpecialKeyCoreosVersion)
if err != nil {
utils.LogAccess(r).WithError(err).WithField("where", "pxe.pxelinuxConfig").Warn(
"error in getting coreOSVersion")
http.Error(w, "error in getting coreOSVersion", 500)
return
}
KernelURL := "http://" + r.Host + "/f/" + coreOSVersion + "/kernel"
InitrdURL := "http://" + r.Host + "/f/" + coreOSVersion + "/initrd"
host, _, err := net.SplitHostPort(r.Host)
if err != nil {
utils.LogAccess(r).WithError(err).WithField("where", "pxe.pxelinuxConfig").Debug(
"error in parsing host and port")
http.Error(w, "error in parsing host and port", 500)
return
}
params, err := templating.ExecuteTemplateFolder(
path.Join(b.datasource.WorkspacePath(), "config", "bootparams"), b.datasource, machineInterface, r.Host)
if err != nil {
utils.LogAccess(r).WithError(err).WithField("where", "pxe.pxelinuxConfig").Warn(
"error while executing the template")
http.Error(w, fmt.Sprintf(`Error while executing the template: %q`, err),
http.StatusInternalServerError)
return
}
params = strings.Replace(params, "\n", " ", -1)
Cmdline := fmt.Sprintf(
"cloud-config-url=http://%s:%d/t/cc/%s "+
"coreos.config.url=http://%s:%d/t/ig/%s %s",
host, b.webPort, mac.String(),
host, b.webPort, mac.String(), params)
bootMessage := strings.Replace(b.bootMessageTemplate, "$MAC", macStr, -1)
cfg := fmt.Sprintf(`
SAY %s
DEFAULT linux
LABEL linux
LINUX %s
APPEND initrd=%s %s
`, strings.Replace(bootMessage, "\n", "\nSAY ", -1), KernelURL, InitrdURL, Cmdline)
w.Write([]byte(cfg))
utils.LogAccess(r).WithField("where", "pxe.pxelinuxConfig").Info()
}