matchbox/bootcfg/api/pixiecore.go

package api

import (
	"net/http"
	"path/filepath"
)

// pixiecoreHandler returns a handler that renders the boot config JSON for
// the requester, to implement the Pixiecore API specification.
// https://github.com/danderson/pixiecore/blob/master/README.api.md
func pixiecoreHandler(gr *groupsResource, store Store) http.Handler {
	fn := func(w http.ResponseWriter, req *http.Request) {
		macAddr, err := parseMAC(filepath.Base(req.URL.Path))
		if err != nil {
			http.Error(w, err.Error(), http.StatusBadRequest)
			return
		}
		// pixiecore only provides MAC addresses
		attrs := LabelSet(map[string]string{"mac": macAddr.String()})
		group, err := gr.findMatch(attrs)
		if err != nil {
			http.NotFound(w, req)
			return
		}
		spec, err := store.Spec(group.Spec)
		if err != nil {
			http.NotFound(w, req)
			return
		}
		renderJSON(w, spec.BootConfig)
	}
	return http.HandlerFunc(fn)
}