Handle unavailable syslog server (#14)

* reconnect when syslog server is unavailable

* ignore unavailable syslog server on startup

syslog/journal2syslog.py

@@ -60,6 +60,15 @@ def _wrap_sock_ssl(self, sock: socket.socket, host: str):
 
         return context.wrap_socket(sock, server_hostname=host)
 
+    def handleError(self, _):
+        """
+        Handle errors silent
+        Close failing socket so next emit will try to create a new socket
+        """
+        if self.socket is not None:
+            self.socket.close()
+            self.socket = None
+
     def createSocket(self):
         """
         Try to create a socket and, if it's not a datagram socket, connect it
@@ -103,7 +112,8 @@ def createSocket(self):
                     err = exc
                     if sock is not None:
                         sock.close()
-            if err is not None:
+            if isinstance(err, ssl.SSLError):
+                # only fail on ssl errors
                 raise err
             self.socket = sock
             self.socktype = socktype