Added exporter for Grandmaster, borderClocl and client clock

exporters/examples/nexus-ptp-exporter.env

@@ -0,0 +1,5 @@
+# /etc/default/nexus-ptp-exporter
+NEXUS_HOST=10.255.255.255
+NEXUS_NAME=NYATER
+NEXUS_USER=prometheus
+NEXUS_KEY_FILE=/opt/ptp-exporter/.ssh/id_ed25519

exporters/examples/prometheus.yml

@@ -0,0 +1,18 @@
+scrape_configs:
+  - job_name: "ptp-linux"
+    scrape_interval: 10s
+    static_configs:
+      - targets:
+          - GrandMaster:9559
+          - BoundaryClock:9559
+          - server-a:9559
+          - server-b:9559
+
+  # nexus_ptp_exporter.py runs on a Linux monitoring host and polls NYATER via SSH.
+  - job_name: "ptp-nexus"
+    scrape_interval: 15s
+    static_configs:
+      - targets:
+          - prometheus-host:9560
+
+