Allow to configure from SlapOs master block device and list of I2C slaves (MOD-IOs).

slapos/software/osie-coupler/buildout.hash.cfg

 [instance-profile]
 filename = instance.cfg.in
-md5sum = 8154af3eab2c255330fcfae9278a2b83
+md5sum = 16f6538f754919b5e894e85fd78ffbab

slapos/software/osie-coupler/instance.cfg.in

@@ -23,7 +23,8 @@ extends = {{ template_monitor }}
 recipe = slapos.cookbook:wrapper
 # start with defaults
 command-line =
-    {{ buildout['parts-directory'] }}/osie/coupler/opc-ua-server/bin/lime2-opc-ua-server /dev/i2c-1 0x58
+    {{ buildout['parts-directory'] }}/osie/coupler/opc-ua-server/bin/lime2-opc-ua-server ${instance-parameter:configuration.coupler_block_device} ${instance-parameter:configuration.coupler_i2c_slave_list}
+
 wrapper-path = ${directory:service}/coupler-opc-ua
 
 [instance-parameter]
@@ -41,6 +42,9 @@ url = ${slap-connection:server-url}
 key = ${slap-connection:key-file}
 cert = ${slap-connection:cert-file}
 
+configuration.coupler_block_device =
+configuration.coupler_i2c_slave_list =
+
 # Define default parameter(s) that will be used later, in case user didn't
 # specify it.
 # All possible parameters should have a default.