Monitoring with telegraf, influxdb grafana:

- Influxdb (1.8) behind traefik proxy so that telegraf can run in host_mode. Secured with HTTP basic auth
- Grafana (7.4) with Postgres database for beatifull dashboards
- Telegraf (1.18) in docker host mode with local configuration file
- Added docker.group to all other docker services to track them in monitoring

monitoring/influxdb.conf

@@ -0,0 +1,12 @@
+[meta]
+  dir = "/var/lib/influxdb/meta"
+
+[data]
+  dir = "/var/lib/influxdb/data"
+  wal-dir = "/var/lib/influxdb/wal"
+  max-concurrent-compactions = 1
+
+[monitor]
+  store-enabled = false
+  store-database = "_internal"
+  store-interval = "10s"