Attempt to tidy up Caddy and Metrics

deployment/docker/optional_metrics/config/prometheus/config.yml

@@ -0,0 +1,22 @@
+global:
+  scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
+  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
+  # scrape_timeout is set to the global default (10s).
+
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets:
+          # - alertmanager:9093
+
+rule_files:
+  # - "first_rules.yml"
+  # - "second_rules.yml"
+
+scrape_configs:
+  - job_name: "rabbitmq"
+    static_configs:
+      - targets: ["rabbitmq:15692"]
+  - job_name: "postgres-exporter"
+    static_configs:
+      - targets: ["postgres-exporter:9187"]