ci: add ibc-relaer custom exporter- prometheus (#232)

Author: DeepakBomjan

scripts/prometheus/collector.py

@@ -0,0 +1,74 @@
+import time
+import subprocess
+import json
+from prometheus_client import start_http_server, Gauge
+
+# Define the metrics
+log_line_count = Gauge('syslog_line_count', 'Number of lines in /var/log/syslog')
+archway_balance_metric = Gauge('archway_balance', 'Balance in Archway Relay Wallet')
+icon_balance_metric = Gauge('icon_balance', 'Balance in Icon Relay Wallet')
+service_status = Gauge('relayer_node_status', 'Relayer node status (active or inactive)', ['service_name'])
+icon_chain_metric = Gauge('icon_block_height', 'Extracted values from the log', ['chain_name', 'chain_id'])
+archway_chain_metric = Gauge('archway_block_height', 'Extracted values from the log', ['chain_name', 'chain_id'])
+command_archway = "rly q balance archway default | grep -oP 'balance \{\K[^}]+' | sed 's/aconst//'"
+command_icon = "rly q balance icon relayer_wallet | grep -oP 'balance \{\K[^}]+' | sed 's/ICX//'"
+command_icon_height="grep 'icon' /home/ubuntu/.relayer/relay.log | tail -n 1 | grep -o '{.*}' | sed 's/latest_height/height/g'"
+
+command_archway_height="grep 'archway' /home/ubuntu/.relayer/relay.log | tail -n 1 | grep -o '{.*}' | sed 's/latest_height/height/g'"
+
+# Define a function to fetch and set the metric values
+def fetch_metrics():
+    try:
+        # Run the 'wc -l' command on the syslog file and parse the result
+        output = subprocess.check_output(['wc', '-l', '/var/log/syslog'])
+        line_count = int(output.split()[0])  # Extract the line count
+        log_line_count.set(line_count)
+        archway_balance_output = subprocess.check_output(command_archway, shell=True, text=True)
+        # print(archway_balance_output)
+        archway_balance_value = archway_balance_output.strip()
+        archway_balance_metric.set(archway_balance_value)  # Assuming balance is a numeric value
+        icon_balance_output = subprocess.check_output(command_icon, shell=True, text=True)
+        # print(icon_balance_output)
+        icon_balance_value = icon_balance_output.strip()
+        icon_balance_metric.set(icon_balance_value)  # Assuming balance is a numeric value
+        # Check relayer node status
+        status = subprocess.getoutput(f'systemctl is-active ibc-relayer.service')
+        service_status.labels(service_name='ibc-relayer.service').set(1 if status == 'active' else 0)
+        # Get block height - icon
+        icon_output = subprocess.check_output(command_icon_height, shell=True, text=True, executable='/bin/bash')
+        # print(icon_output)
+        json_data = json.loads(icon_output)
+        chain_name = json_data['chain_name']
+        chain_id = json_data['chain_id']
+        height = json_data['height']
+        # print(f'{chain_id},{chain_name},{height}')
+        icon_chain_metric.labels(chain_name=chain_name, chain_id=chain_id).set(height)
+        # Get block height - archway
+        archway_output = subprocess.check_output(command_archway_height, shell=True, text=True, executable='/bin/bash')
+        # print(archway_output)
+        json_data = json.loads(archway_output)
+        if 'error' in json_data:
+            error_message = json_data['error']
+            # Handle the error message, for example, by logging it or raising an exception.
+            print(f"Error: {error_message}")
+            # chain_name = json_data['chain_name']
+            # chain_id = json_data['chain_id']
+            # archway_chain_metric.labels(chain_name=chain_name, chain_id=chain_id).set(2434508)
+
+        else:
+            chain_name = json_data['chain_name']
+            chain_id = json_data['chain_id']
+            height = json_data['height']
+            # print(f'{chain_id},{chain_name},{height}')
+            archway_chain_metric.labels(chain_name=chain_name, chain_id=chain_id).set(height)
+    except Exception as e:
+        print(f"Failed to fetch metrics: {e}")
+
+if __name__ == '__main__':
+    # Start an HTTP server for Prometheus to scrape the metrics
+    start_http_server(8000)
+
+    # Run the commands and update the metric values every 5 seconds
+    while True:
+        fetch_metrics()
+        time.sleep(5)