repo clean-up

- rename SOLUTION_DOMAIN env to HTTP_DOMAIN
- use ${env} within .env

Issue-ID: OAM-346
Change-Id: I4b0abebc7b8ddfbcc632816b3868877f95903faa
Signed-off-by: demx8as6 <martin.skorupski@highstreet-technologies.com>
diff --git a/solution/network/.env b/solution/network/.env
index b0dac8a..c61b04e 100644
--- a/solution/network/.env
+++ b/solution/network/.env
@@ -23,19 +23,19 @@
 ADMIN_PASSWORD=Kp8bJ4SXszM0WXlhak3eHlcse2gAw84vaoGGmJvUy2U
 
 # gateway network implemented by traefik
-GATEWAY_DOMAIN=smo.o-ran-sc.org
+HTTP_DOMAIN=smo.o-ran-sc.org
 
 # SDN Controller
 SDN_CONTROLLER_PROTOCOL=https
-SDNC_OAM_HOST=odlux.oam.smo.o-ran-sc.org
-SDNC_DCN_HOST=controller.dcn.smo.o-ran-sc.org
+SDNC_OAM_HOST=odlux.oam.${HTTP_DOMAIN}
+SDNC_DCN_HOST=controller.dcn.${HTTP_DOMAIN}
 SDNC_REST_PORT=443
 SDN_CONTROLLER_CALLHOME_SSH_PORT=4334
 SDN_CONTROLLER_CALLHOME_TLS_PORT=4335
 
 # VES Collector
 VES_ENDPOINT_PROTOCOL=https
-VES_COLLECTOR_DCN_HOST=ves-collector.dcn.smo.o-ran-sc.org
+VES_COLLECTOR_DCN_HOST=ves-collector.dcn.${HTTP_DOMAIN}
 VES_ENDPOINT_PORT=443
 VES_COMMON_HEADER_VERSION=7.2.1
 VES_ENDPOINT_AUTH_METHOD=basic-auth