roles/ipv6_edge_router/tasks/main.yml

@@ -30,4 +30,26 @@
   loop:
     - bgpd.service
     - zebra.service
+
+- name: Install quagga prometheus exporter
+  template:
+    src: '{{ item.src }}'
+    dest: '{{ item.dest }}'
+    mode: '{{ item.mode }}'
+  loop:
+    - src: 'quagga.py.j2'
+      dest: '/usr/share/prometheus-node-exporter/quagga.py
+      mode: "0755"
+    - src: prometheus-node-exporter-quagga.service
+      dest: /etc/systemd/system/prometheus-node-exporter-quagga.service
+      mode: "0644"
+    - src: prometheus-node-exporter-quagga.timer
+      dest: /etc/systemd/system/prometheus-node-exporter-quagga.timer
+      mode: "0644"
+
+- name: Enable node-exporter
+  service:
+    name: prometheus-node-exporter.service
+    enabled: yes
+    state: started
 ...

roles/ipv6_edge_router/templates/prometheus-node-exporter-quagga.service.j2

@@ -0,0 +1,6 @@
+[Unit]
+Description=Collect quagga metrics for prometheus-node-exporter
+
+[Service]
+Type=oneshot
+ExecStart=/bin/bash -c "/usr/share/prometheus-node-exporter/quagga.py | sponge /var/lib/prometheus/node-exporter/quagga.prom"

roles/ipv6_edge_router/templates/prometheus-node-exporter-quagga.timer.j2

@@ -0,0 +1,9 @@
+[Unit]
+Description=Run quagga metrics collection every 15 minutes
+
+[Timer]
+OnBootSec=0
+OnUnitActiveSec=15min
+
+[Install]
+WantedBy=timers.target

roles/ipv6_edge_router/templates/quagga.py.j2

@@ -0,0 +1,56 @@
+#!/usr/bin/python3
+
+import re
+import subprocess
+
+
+def parse_bgp_summary(summary):
+    header = 'Neighbor        V         AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd\n'
+    res = {'routes': 0, 'uptime': 0}
+    try:
+        index = summary.index(header) + len(header)
+    except ValueError:
+        return res
+    summary = summary[index:]
+    match = re.match(r'(?P<neighbor>[^\s\n])+\n?\s+(?P<version>4)\s+(?P<as>\d{1,5})\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+(?P<uptime>[^\s]+)\s+(?P<routes>\d+)\n', summary)
+    if match is None:
+        return res
+    res['routes'] = int(match.group('routes'))
+    uptime = match.group('uptime')
+    if re.fullmatch(r'[0-9]+:[0-9]+:[0-9]+', uptime) is not None:
+        uptime = line[8].split(':')
+        uptime = int(uptime[0])*3600 + int(uptime[1])*60 + int(uptime[2])
+    else:
+        uptime_match = re.fullmatch(r'([0-9]+)d([0-9]+)h([0-9]+)m', uptime)
+        if uptime_match is not None:
+            uptime = int(uptime_match.group(1))*86400 + int(uptime_match.group(2))*3600 + int(uptime_match.group(3))*60
+        else:
+            uptime_match = re.fullmatch(r'([0-9]+)w([0-9]+)d([0-9]+)h', uptime)
+            if uptime_match is not None:
+                uptime = int(uptime_match.group(1))*604800 + int(uptime_match.group(2))*86400 + int(uptime_match.group(3))*3600
+            else:
+                uptime_match = re.fullmatch(r'([0-9]+)y([0-9]+)w([0-9]+)d', uptime)
+                if uptime_match is not None:
+                    uptime = int(uptime_match.group(1))*220752000 + int(uptime_match.group(2))*604800 + int(uptime_match.group(3))*86400
+                else:
+                    uptime = 0
+    res['uptime'] = uptime
+    return res
+
+def prompt(version='ipv4'):
+    summary = subprocess.run(['/usr/bin/vtysh', '-c', f'show bgp {version} unicast summary'], capture_output=True).stdout.decode('utf-8')
+    bgp_routes_uptime = parse_bgp_summary(bgp_ipv4_unicast_summary)
+    routes = bgp_routes_uptime['routes']
+    uptime = bgp_routes_uptime['uptime']
+    print(f'# HELP quagga_bgp_{version}_routes Number of {version} routes added by quagga')
+    print(f'# TYPE quagga_bgp_{version}_routes gauge')
+    print(f'quagga_bgp_{version}_routes {routes}')
+    print(f'# HELP quagga_bgp_{version}_uptime {version} BGP connection uptime')
+    print(f'# TYPE quagga_bgp_{version}_uptime gauge')
+    print(f'quagga_bgp_{version}_uptime {uptime}')
+
+
+
+if __name__ == '__main__':
+	prompt('ipv4')
+	prompt('ipv6')