use public keytray host on abac-server

.gitlab-ci.yml

@@ -124,11 +124,12 @@ image: debian:bullseye-slim
             echo "https" | sudo tee "$WORK_DIR/.env.d/XNAT_PROTOCOL" > /dev/null
             echo "443"   | sudo tee "$WORK_DIR/.env.d/XNAT_PORT" > /dev/null
 
-            # XNAT needs to use public endpoints on multi-cloud deployments
+            # Public endpoint overrides needed on multi-cloud deployments
 
             echo \$\{KEYCLOAK_BASE_URL\} | sudo tee "$WORK_DIR/.env.d/XNAT_OPENID_USER_AUTH_BASE_URL" > /dev/null
             echo \$\{KEYCLOAK_BASE_URL\} | sudo tee "$WORK_DIR/.env.d/XNAT_OPENID_ACCESS_TOKEN_BASE_URL" > /dev/null
             echo \$\{XNAT_API_URL\} | sudo tee "$WORK_DIR/.env.d/ABAC_SERVER_XNAT_API_URL" > /dev/null
+            echo \$\{KEYTRAY_HOST\} | sudo tee "$WORK_DIR/.env.d/ABAC_SERVER_KEYTRAY_HOST" > /dev/null
 
             # Use public keytray for CPABE server (for proper e2e testing)