[COMMON] Make network-name-gen use common secrets template

For now we use it only for DB secret but in a future also
other secrets should be replaced.

Issue-ID: OOM-2249
Change-Id: Ie6515806c39c6a2cd94be378b5210156b78f4afb
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
diff --git a/kubernetes/common/network-name-gen/templates/deployment.yaml b/kubernetes/common/network-name-gen/templates/deployment.yaml
index 60dbca4..2f9cd6a 100644
--- a/kubernetes/common/network-name-gen/templates/deployment.yaml
+++ b/kubernetes/common/network-name-gen/templates/deployment.yaml
@@ -53,12 +53,9 @@
         - name: SPRING_PROFILE
           value: "{{ .Values.config.springProfile }}"
         - name: NENG_DB_USER
-          value: {{ index .Values "mariadb-galera" "config" "userName" }}
+          {{- include "common.secret.envFromSecret" (dict "global" . "uid" "db-user-creds" "key" "login") | indent 10}}
         - name: NENG_DB_PASS
-          valueFrom:
-            secretKeyRef:
-              name: {{ template "common.fullname" . }}
-              key: db-root-password
+          {{- include "common.secret.envFromSecret" (dict "global" . "uid" "db-user-creds" "key" "password") | indent 10}}
         - name: NENG_DB_URL
           value: {{ .Values.config.dbUrl }}
         - name: POL_CLIENT_AUTH