diff --git a/configs/open5gs/pcrf.yaml.in b/configs/open5gs/pcrf.yaml.in
index 4cf913ab6..b87c38765 100644
--- a/configs/open5gs/pcrf.yaml.in
+++ b/configs/open5gs/pcrf.yaml.in
@@ -1,4 +1,57 @@
 db_uri: mongodb://localhost/open5gs
+db_json:
+  default:
+    af:
+      ambr:
+        up: 10000
+        down: 10000
+      gmbr:
+        up: 1000
+        down: 1000
+      qci: 4
+    normal:
+      ambr:
+        up: 10000
+        down: 10000
+      gmbr:
+        up: 10000
+        down: 10000
+      qci: 5
+  charging_profiles:
+    af:
+      - 1
+      - 2
+      - 3
+      - 4
+    normal:
+      - 1
+      - 2
+      - 3
+      - 4
+    dir:
+      normal: "/tmp/profiles"
+      af: "/tmp/profiles_af"
+#
+#  o Set OGS_LOG_INFO to all domain level
+#   - If `level` is omitted, the default level is OGS_LOG_INFO)
+#   - If `domain` is omitted, the all domain level is set from 'level'
+#    (Default values are used, so no configuration is required)
+#
+#  o Set OGS_LOG_ERROR to all domain level
+#   - `level` can be set with none, fatal, error, warn, info, debug, trace
+#  logger:
+#    level: error
+#
+#  o Set OGS_LOG_DEBUG to mme/emm domain level
+#  logger:
+#    level: debug
+#    domain: mme,emm
+#
+#  o Set OGS_LOG_TRACE to all domain level
+#  logger:
+#    level: trace
+#    domain: core,sbi,ausf,event,tlv,mem,sock
+#
 logger:
   file: @localstatedir@/log/open5gs/pcrf.log
 #  level: info   # fatal|error|warn|info(default)|debug|trace