added a monitoring plugin to see health of peers and channels

monitor/monitor.py

@@ -0,0 +1,78 @@
+#!/usr/bin/env python3
+"""
+
+This is a quick hack and adopted plugin from the summary.py plugin (orinigally written by Rusty Russell
+
+This one is adapted by Rene Pickhardt and aimed to help you identify inactive channels quickly
+
+"""
+
+from lightning import Plugin, Millisatoshi
+import lightning
+import json
+
+plugin = Plugin(autopatch=True)
+
+# __version__ was introduced in 0.0.7.1, with utf8 passthrough support.
+try:
+    if version.parse(lightning.__version__) >= version.parse("0.0.7.1"):
+        have_utf8 = True
+except Exception:
+    pass
+
+@plugin.method("monitor")
+def monitor(plugin):
+    """Monitors channels of this node."""
+
+    reply = {}
+    reply['num_connected'] = 0
+    reply['num_channels'] = 0
+    peers = plugin.rpc.listpeers()
+    info = plugin.rpc.getinfo()
+    nid = info["id"]
+    chans={}
+    states={}
+    for p in peers['peers']:
+        for c in p['channels']:
+            if p['connected']:
+                reply['num_connected'] += 1
+            reply['num_channels'] += 1
+            state = c['state']
+            if state in states:
+                states[state]+=1
+            else:
+                states[state]=1
+            connected = "connected"
+            if p['connected'] != True:
+                connected = "disconnected"
+            funding = c['funding_allocation_msat']
+            our_funding = funding[nid]
+            fees = "our fees"
+            if int(our_funding) == 0:
+                fees = "their fees"
+
+
+            total = float(c['msatoshi_total'])
+            ours = float(c['our_channel_reserve_satoshis']) + float(c['spendable_msatoshi'])
+            our_fraction = "{:4.2f}% owned by us".format(ours*100/total)
+            tmp = "\t".join([p['id'], connected, fees, our_fraction, c['short_channel_id']])
+            
+            if state in chans:
+                chans[state].append(tmp)
+            else:
+                chans[state] = [tmp]
+
+    serialized_states = []
+    for key, value in states.items():
+        serialized_states.append(key + ": " + str(value))
+    reply['states']=serialized_states
+    reply['channels'] = chans#json.dumps(chans)
+    reply = json.dumps(reply, indent=4)
+    return reply
+
+
+@plugin.init()
+def init(options, configuration, plugin):
+    plugin.log("Plugin monitor.py initialized")
+
+plugin.run()