api.py 文件源码

def ignition():
    """
    Ignition
    ---
    tags:
      - matchbox
    responses:
      200:
        description: Ignition configuration
        schema:
            type: dict
      403:
        description: Matchbox unavailable
        schema:
            type: text/plain
      503:
        description: Matchbox is out of sync
        schema:
            type: text/plain
    """
    cache_key = "sync-notify"
    last_sync_ts = CACHE.get(cache_key)
    app.logger.debug("cacheKey: %s is set with value %s" % (cache_key, last_sync_ts))

    # we ignore the sync status if we arrived from /ignition-pxe because it's a discovery PXE boot
    if last_sync_ts is None and request.path != "/ignition-pxe":
        app.logger.error("matchbox state is out of sync: cacheKey: %s is None" % cache_key)
        return Response("matchbox is out of sync", status=503, mimetype="text/plain")

    if request.path == "/ignition-pxe":
        app.logger.info("%s %s" % (request.method, request.url))

    matchbox_uri = application.config.get("MATCHBOX_URI")
    if matchbox_uri:
        try:
            # remove the -pxe from the path because matchbox only serve /ignition
            path = request.full_path.replace("/ignition-pxe?", "/ignition?")
            matchbox_resp = requests.get("%s%s" % (matchbox_uri, path))
            resp = matchbox_resp.content
            matchbox_resp.close()
            return Response(resp, status=matchbox_resp.status_code, mimetype="text/plain")
        except requests.RequestException as e:
            app.logger.error("fail to query matchbox ignition %s" % e)
            return Response("matchbox doesn't respond", status=502, mimetype="text/plain")

    return Response("matchbox=%s" % matchbox_uri, status=403, mimetype="text/plain")