You will need to sort out the permissions problem yourself. I don't have visibility of your system for file ownership and permissions, SELinux settings etc. If necessary, ask a local system administrator for help.
I don't get those errors: Sep 30 14:46:15 prometheus alertmanager[409]: level=debug ts=2020-09-30T14:46:15.718Z caller=nflog.go:336 component=nflog msg="Running maintenance" Sep 30 14:46:15 prometheus alertmanager[409]: level=debug ts=2020-09-30T14:46:15.750Z caller=nflog.go:338 component=nflog msg="Maintenance done" duration=31.326992ms size=413 As for getting additional logs when delivering alerts, I expect you need to run alertmanager with flag "--log.level=debug". I am running with that flag, and I get messages like Sep 30 14:22:00 prometheus alertmanager[409]: level=debug ts=2020-09-30T14:22:00.559Z caller=dispatch.go:135 component=dispatcher msg="Received alert" alert=PPPoE[6cf3489][active] Sep 30 14:22:30 prometheus alertmanager[409]: level=debug ts=2020-09-30T14:22:30.558Z caller=dispatch.go:135 component=dispatcher msg="Received alert" alert=PPPoE[6cf3489][resolved] -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/34fcb78e-a665-489f-928c-81b850089873o%40googlegroups.com.
