python-etcd

import etcd import os # Configure etcd host and port (defaults to localhost:2379 for etcd v2) # Replace with your etcd v2 cluster address etcd_host = os.environ.get('ETCD_HOST', '127.0.0.1') etcd_port = int(os.environ.get('ETCD_PORT', 2379)) try: # Initialize client for etcd v2 client = etcd.Client(host=etcd_host, port=etcd_port) print(f"Connected to etcd v2 at {etcd_host}:{etcd_port}") # Write a key-value pair client.write('/mykey', 'myvalue') print("Wrote '/mykey': 'myvalue'") # Read the value back result = client.read('/mykey') print(f"Read '/mykey': {result.value}") # Update a key with a TTL (Time To Live) client.write('/tempkey', 'tempvalue', ttl=5) print("Wrote '/tempkey' with a 5-second TTL") # Delete a key client.delete('/mykey') print("Deleted '/mykey'") except etcd.EtcdException as e: print(f"An etcd error occurred: {e}") except ConnectionRefusedError: print(f"Connection to etcd v2 at {etcd_host}:{etcd_port} refused. Is etcd v2 running?") except Exception as e: print(f"An unexpected error occurred: {e}")