Make the service host configurable when loading site.psh

Trying to add some flexibility to how endpoints are specified.
This just makes it possible to change the endpoints in the shell
through a single pdo-shell variable

Signed-off-by: Mic Bowman <mic.bowman@intel.com>

build/opt/pdo/etc/template/site.psh

@@ -19,18 +19,20 @@ if --null "${data}"
    exit
 fi
 
+set --conditional -s service_host -v "SERVICE_HOST"
+
 ## -----------------------------------------------------------------
 ## Set the default set of eservices that this file knows
 ## about. There may be more that have been added to the
 ## eservice database. This list is primarily that ones that
 ## will be used by the local client to create & interact with
 ## contracts.
 ## -----------------------------------------------------------------
-set -s eservice1 -v http://SERVICE_HOST:7101
-set -s eservice2 -v http://SERVICE_HOST:7102
-set -s eservice3 -v http://SERVICE_HOST:7103
-set -s eservice4 -v http://SERVICE_HOST:7104
-set -s eservice5 -v http://SERVICE_HOST:7105
+set -s eservice1 -v http://${service_host}:7101
+set -s eservice2 -v http://${service_host}:7102
+set -s eservice3 -v http://${service_host}:7103
+set -s eservice4 -v http://${service_host}:7104
+set -s eservice5 -v http://${service_host}:7105
 
 ## load the local database if it exists
 set --conditional -s dbfile --state Service EnclaveServiceDatabaseFile
@@ -58,12 +60,11 @@ fi
 ## provisioning services that will be used for provisioning keys
 ## into the contract enclaves.
 ## -----------------------------------------------------------------
-
-set -s pservice1 -v http://SERVICE_HOST:7001
-set -s pservice2 -v http://SERVICE_HOST:7002
-set -s pservice3 -v http://SERVICE_HOST:7003
-set -s pservice4 -v http://SERVICE_HOST:7004
-set -s pservice5 -v http://SERVICE_HOST:7005
+set -s pservice1 -v http://${service_host}:7001
+set -s pservice2 -v http://${service_host}:7002
+set -s pservice3 -v http://${service_host}:7003
+set -s pservice4 -v http://${service_host}:7004
+set -s pservice5 -v http://${service_host}:7005
 
 ## default pservice group
 pservice add --url ${pservice1}
@@ -145,12 +146,11 @@ eservice --group all use --url ${eservice1}
 ## current state of the object can be retrieved from the
 ## persistent storage service
 ## -----------------------------------------------------------------
-
-set -s sservice1 -v http://SERVICE_HOST:7201
-set -s sservice2 -v http://SERVICE_HOST:7202
-set -s sservice3 -v http://SERVICE_HOST:7203
-set -s sservice4 -v http://SERVICE_HOST:7204
-set -s sservice5 -v http://SERVICE_HOST:7205
+set -s sservice1 -v http://${service_host}:7201
+set -s sservice2 -v http://${service_host}:7202
+set -s sservice3 -v http://${service_host}:7203
+set -s sservice4 -v http://${service_host}:7204
+set -s sservice5 -v http://${service_host}:7205
 
 set -s persistent_storage_service -v ${sservice1}