Convert all DB config to nested

Change-Id: Iab018288f1a884a72ff687d89b68ca08df47ba06

service/files/defaults.yaml

@@ -1,4 +1,6 @@
 configs:
-    db_max_timeout: 60
-    db_root_password: password
-    mariadb_port: 3306
+  db:
+    max_timeout: 60
+    root_password: password
+  mariadb:
+    port: 3306

service/files/mariadb-bootstrap.sh.j2

@@ -23,8 +23,8 @@ function bootstrap_db {
     wait $(jobs -p)
 }
 
-DB_ROOT_PASSWORD="{{ db_root_password }}"
-DB_MAX_TIMEOUT="{{ db_max_timeout }}"
+DB_ROOT_PASSWORD="{{ db.root_password }}"
+DB_MAX_TIMEOUT="{{ db.max_timeout }}"
 
 # Only update permissions if permissions need to be updated
 if [[ $(stat -c %U:%G /var/lib/mysql) != "mysql:mysql" ]]; then

service/files/my.cnf.j2

@@ -1,6 +1,6 @@
 [mysqld]
 bind-address = {{ network_topology["private"]["address"] }}
-port = {{ mariadb_port }}
+port = {{ mariadb.port }}
 
 datadir=/var/lib/mysql/
 log-error=/var/log/ccp/mysql/mysql.log

service/files/readiness.sh.j2

@@ -1,3 +1,3 @@
 #!/bin/bash -e
 
-test -f /tmp/mariadb_ok && nc -z {{ network_topology["private"]["address"] }} {{ mariadb_port }}
+test -f /tmp/mariadb_ok && nc -z {{ network_topology["private"]["address"] }} {{ mariadb.port }}

service/mariadb.yaml

@@ -1,7 +1,7 @@
 service:
   name: mariadb
   ports:
-    - {{ mariadb_port }}
+    - {{ mariadb.port }}
   containers:
     - name: mariadb
       image: mariadb