feat: fallback to default socket address when docker.from_env() fails

Author: GaetanLepage

core/testcontainers/core/config.py

@@ -33,13 +33,17 @@ def get_docker_socket() -> str:
     if socket_path := environ.get("TESTCONTAINERS_DOCKER_SOCKET_OVERRIDE"):
         return socket_path
 
-    client = docker.from_env()
+    default_socket_address: str = "/var/run/docker.sock"
+    try:
+        client = docker.from_env()
+    except docker.errors.DockerException:
+        return default_socket_address
     try:
         socket_path = client.api.get_adapter(client.api.base_url).socket_path
         # return the normalized path as string
         return str(Path(socket_path).absolute())
     except AttributeError:
-        return "/var/run/docker.sock"
+        return default_socket_address
 
 
 MAX_TRIES = int(environ.get("TC_MAX_TRIES", 120))