Fix docker-compose enviroment variables for dbpostgresql service

Use correct variables names for service, currents variable
names are result of wrong copy&paste

Issue-ID: CPS-22
Signed-off-by: Claudio David Gasparini <claudio.gasparini@pantheon.tech>
Change-Id: Ibcaf7725175d8ab7e7fbb5199949e3275f849788
diff --git a/docker-compose/docker-compose.yml b/docker-compose/docker-compose.yml
index 6894d3f..b1b3bf9 100644
--- a/docker-compose/docker-compose.yml
+++ b/docker-compose/docker-compose.yml
@@ -2,16 +2,15 @@
 
 services:
   cps:
-    restart: unless-stopped
-    image: nexus3.onap.org:10001/onap/cps-service:${VERSION}
     container_name: cps-service
+    image: nexus3.onap.org:10001/onap/cps-service:${VERSION}
+    ports:
+      - "8080:8080"
     environment:
       DB_HOST: ${DB_HOST}
       DB_USERNAME: ${DB_USERNAME}
       DB_PASSWORD: ${DB_PASSWORD}
-    ports:
-      - "8080:8080"
-    network_mode: "host
+    restart: unless-stopped
     depends_on:
       - dbpostgresql
 
@@ -21,6 +20,6 @@
     ports:
       - '5432:5432'
     environment:
-      DB_NAME: cpsdb
-      DB_USERNAME: ${DB_USERNAME}
-      DB_PASSWORD: ${DB_PASSWORD}
\ No newline at end of file
+      POSTGRES_DB: cpsdb
+      POSTGRES_USER: ${DB_USERNAME}
+      POSTGRES_PASSWORD: ${DB_PASSWORD}
\ No newline at end of file