Add files for default log config starting up a device

lib/lofar2_config.py

+#! /usr/bin/env python3
+
+import logging
+
+
+def configure_logging():
+    # Always also log the hostname because it makes the origin of the log clear.
+    import socket
+    hostname = socket.gethostname()
+    # Set up logging in a way that it can be understood by a human reader, be
+    # easily grep'ed, be parsed with a couple of shell commands and
+    # easily fed into an Kibana/Elastic search system.
+    logging.basicConfig(format = '%(asctime)s.%(msecs)d %(levelname)s - HOST="{}" PID="%(process)d" TNAME="%(threadName)s" TID="%(thread)d" FILE="%(pathname)s" LINE="%(lineno)d" FUNC="%(funcName)s" MSG="%(message)s"'.format(hostname), datefmt = '%Y-%m-%dT%H:%M:%S', level = logging.INFO, Force = True)

lib/startup.py

+#! /usr/bin/env python3
+
+
+def startup(device: str, force_restart: bool):
+    '''
+    Start a LOFAR Tango device:
+    pcc = startup(device = 'LTS/PCC/1', force_restart = False)
+    '''
+    import tango
+    proxy = tango.DeviceProxy(device)
+    state = proxy.state()
+
+    if force_restart is True:
+        print("Forcing device {} restart.".format(device))
+        proxy.off()
+        state = proxy.state()
+        if state is not tango._tango.DevState.OFF:
+            print("Device {} cannot perform off although restart has been enforced, state = {}.  Please investigate.".format(device, state))
+            return proxy
+    if state is not tango._tango.DevState.OFF:
+        print("Device {} is not in OFF state, cannot start it.  state = {}".format(device, state))
+        return proxy
+    print("Device {} is in OFF, performing initialisation.".format(device))
+    proxy.initialise()
+    state = proxy.state()
+    if state is not tango._tango.DevState.STANDBY:
+        print("Device {} cannot perform initialise, state = {}.  Please investigate.".format(device, state))
+        return proxy
+    print("Device {} is in STANDBY, performing on.".format(device))
+    proxy.on()
+    state = proxy.state()
+    if state is not tango._tango.DevState.ON:
+        print("Device {} cannot perform on, state = {}.  Please investigate.".format(device, state))
+    else:
+        print("Device {} has successfully reached ON state.".format(device))
+    return proxy
+