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| """ | |
| This hacky-hacky script checks what's the lowest latency IP for a given DNS resource | |
| """ | |
| import subprocess | |
| COUNT = "3" | |
| res = [] | |
| hostname = "MY.DNSDOMAIN.COM" | |
| result = subprocess.run(['dig', '+short', hostname], stdout=subprocess.PIPE) | |
| ips = list(result.stdout.decode("utf-8").replace("\\n", " ").split()) | |
| print(ips) | |
| for host in ips: | |
| ping = subprocess.run(['ping', '-c', COUNT, host], stdout=subprocess.PIPE) | |
| if ping.returncode != 0: | |
| # host is down | |
| continue | |
| ping_time = ping.stdout.decode("utf-8") | |
| ping_time = ping_time.split("round-trip min/avg/max/stddev =")[1].split()[0] | |
| # e.g: 123.775/133.417/144.147/8.352 | |
| # 0: min | |
| # 1: avg | |
| # 2: max | |
| # 3: stddev | |
| ping_time = ping_time.split("/")[1] | |
| # e.g: '143.135' | |
| res.append((host,ping_time)) | |
| _min = min(res, key=lambda x: float(x[1])) | |
| print(_min[0]) |
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