Tests: core: add timeout values for common clients

Force redis, PSQL, kafka clients to have a strict
timeout value for any requests.

It's done to ensure our tests do not hang for an unknown
period of time in case if something goes wrong.

Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>

tests/metrics.py

@@ -6,12 +6,14 @@ def cgw_metric_get(host: str = "localhost", port: int = 8080) -> str:
     metrics = ""
 
     try:
-        r = requests.get(f"http://{host}:{port}/metrics")
-        print("CGW metrics: " + str(r.status_code) + ', txt:' + r.text)
+        # Try to fetch metrics with 5 seconds timeout value
+        r = requests.get(f"http://{host}:{port}/metrics", timeout=5)
+        print("CGW metrics ret code: " + str(r.status_code))
         assert r is not None and r.status_code == 200, \
                 f"CGW metrics is not available"
         metrics = r.text
-    except:
+    except Exception as e:
+        print("CGW metrics: raised exception when tried to fetch metrics:" + e)
         raise Exception('CGW metrics fetch failed (Not running?)')
 
     return metrics

utils/client_simulator/src/simulation_runner.py

@@ -126,7 +126,9 @@ class Device:
 
     def connect(self):
         if self._socket is None:
-            self._socket = client.connect(self.server_addr, ssl=self.ssl_context, open_timeout=7200)
+            # 20 seconds is more then enough to establish conne and exchange
+            # them handshakes.
+            self._socket = client.connect(self.server_addr, ssl=self.ssl_context, open_timeout=20, close_timeout=20)
         return self._socket
 
     def disconnect(self):

utils/kafka_producer/src/producer.py

@@ -132,7 +132,11 @@ class Producer:
 
     def connect(self) -> kafka.KafkaProducer:
         if self.is_connected() is False:
-            self.conn = kafka.KafkaProducer(bootstrap_servers=self.db, client_id="producer")
+            self.conn = kafka.KafkaProducer(
+                    bootstrap_servers=self.db,
+                    client_id="producer",
+                    max_block_ms=12000,
+                    request_timeout_ms=12000)
             logger.info("producer: connected to kafka")
         else:
             logger.info("producer: already connected to kafka")

utils/redis_client/redis_client.py

@@ -12,7 +12,10 @@ class RedisClient:
         """Connect to the Redis database."""
         try:
             # Establish connection to Redis server
-            self.connection = redis.StrictRedis(host=self.host, port=self.port, db=0, decode_responses=True)
+            self.connection = redis.StrictRedis(
+                    host=self.host, port=self.port,
+                    db=0, decode_responses=True, socket_timeout=5.0,
+                    socket_connect_timeout=2.0)
             # Check if the connection is successful
             self.connection.ping()
             print(f"Connected to Redis server at {self.host}:{self.port}")