From f1c8c6121d941060f0d81fed486746a89c3bfd86 Mon Sep 17 00:00:00 2001
From: roman huesler <roman.huesler@gmx.ch>
Date: Tue, 26 Mar 2024 17:05:49 +0100
Subject: [PATCH] feat: add script for local debugging

---
 f2soperator/start_debug.py | 58 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100755 f2soperator/start_debug.py

diff --git a/f2soperator/start_debug.py b/f2soperator/start_debug.py
new file mode 100755
index 0000000..d0ada99
--- /dev/null
+++ b/f2soperator/start_debug.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+import subprocess
+import os
+import random
+
+# Helper function to generate a random port
+def generate_random_port():
+    return random.randint(1025, 60000)
+
+# Use local Kubernetes config
+os.environ["KUBECONFIG"] = os.path.expanduser("~/.kube/config")
+
+# Terminate all previous port forwardings
+print("Killing previous port-forwarding threads")
+pids = subprocess.run(["pgrep", "-f", "kubectl port-forward"], capture_output=True, text=True).stdout.splitlines()
+if not pids:
+    print("No kubectl port-forward processes found.")
+else:
+    print("Killing kubectl port-forward processes...")
+    for pid in pids:
+        subprocess.run(["kill", "-9", pid])
+    print("All kubectl port-forward processes killed.")
+
+# Forward ports
+print("Forward ports from Kubernetes services")
+subprocess.Popen(["kubectl", "port-forward", "-n", "f2s", "service/prometheus-service", "9090:9090"], stdout=subprocess.DEVNULL)
+subprocess.Popen(["kubectl", "port-forward", "-n", "f2s", "service/f2s-memberlist", "7079:7079"], stdout=subprocess.DEVNULL)
+subprocess.Popen(["kubectl", "port-forward", "-n", "f2s", "service/f2s-api", "8080:8080"], stdout=subprocess.DEVNULL)
+
+# Use forwarded services
+print("Set environment variables for f2s debugging")
+os.environ["Prometheus_URL"] = "localhost:9090"
+os.environ["MEMBERLIST_ADDRESS"] = "localhost:7079"
+
+# Forward port of each f2s-containers service
+print("Forward ports of f2s-containers services")
+services = subprocess.run(["kubectl", "get", "services", "-n", "f2s-containers", "-o=jsonpath=\"{range .items[*]}{.metadata.name}{\"\\n\"}{end}\""], capture_output=True, text=True).stdout.splitlines()
+print(f"found {len(services)} f2s-containers services:")
+for service_name in services:
+    print(f"  Starting port forwarding for service: {service_name}")
+
+    # Generate a random local port
+    local_port = generate_random_port()
+
+    # Forward the service port
+    subprocess.Popen(["kubectl", "port-forward", "-n", "f2s-containers", f"service/{service_name}", f"{local_port}:9092"], stdout=subprocess.DEVNULL)
+
+    # Store an environment variable
+    service_name_with_underscores = service_name.replace("-", "_")
+    uppercase_service_name = service_name_with_underscores.upper()
+    print(f" => F2S_SERVICE_{uppercase_service_name}=127.0.0.1:{local_port}")
+    os.environ[f"F2S_SERVICE_{uppercase_service_name}"] = f"127.0.0.1:{local_port}"
+
+print("Port forwarding started for all services.")
+
+# Start f2s application
+print("Starting f2s...")
+subprocess.run(["go", "run", "main.go"])