stack/resilient: Run notifier-status-feed once from buildout

The resiliency notifier status feed file `notifier-status-rss`
is generated by a cron running every 5 minutes. But there is a
promise that requires it to check the notifier status, meaning
instanciation fails until this file is available.

To allow the promise to succeed immediately, we generate the
feed a first time directly from buildout.

stack/resilient/buildout.hash.cfg

@@ -14,7 +14,7 @@
 # not need these here).
 [pbsready]
 filename = pbsready.cfg.in
-md5sum = 9ceceeee21fa90837c887d2d6866859e
+md5sum = 005125621d157b3ae04c428ea6060e37
 
 [pbsready-import]
 filename = pbsready-import.cfg.in

stack/resilient/pbsready.cfg.in

@@ -145,12 +145,17 @@ command-line = ${buildout:bin-directory}/generatefeed --output $${:feed-path} --
 feed-path = $${directory:monitor-resilient}/notifier-status-rss
 wrapper-path = $${rootdirectory:bin}/resilient-genstatusrss.py
 
+[notifier-status-feed-first-run]
+recipe = plone.recipe.command
+command = $${notifier-resilient-status-feed:wrapper-path}
+stop-on-error = true
+
 [cron-entry-notifier-status-feed]
 <= cron
 recipe = slapos.cookbook:cron.d
 name = resilient-notifier-status-feed
 frequency = */5 * * * *
-command = $${notifier-resilient-status-feed:wrapper-path}
+command = $${notifier-status-feed-first-run:command}
 
 [notifier-stalled-promise-bin]
 recipe = slapos.cookbook:wrapper