Use Configmap instead of ENV variables

templates/configmap.yaml

+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "aleksis.fullname" . }}-config
+  labels:
+    {{- include "aleksis.labels" . | nindent 4 }}
+data:
+  aleksis.yaml: |{{ toYaml .Values.aleksis.config | nindent 4 }}
+  generated.yaml: |
+    database:
+      host: "{{.Release.Name }}-postgresql"
+      user: "{{ .Values.postgresql.postgresqlUsername }}"
+      name: "{{ .Values.postgresql.postgresqlDatabase }}"
+    caching:
+      redis:
+        host: "{{ .Release.Name }}-redis-master"
+    http:
+      allowed_hosts:
+        - "*"