Ability to configure connection limits (vitabaks#280)

Author: mrsrvman

roles/postgresql-databases/tasks/main.yml

@@ -9,11 +9,12 @@
     encoding: "{{ item.encoding }}"
     lc_collate: "{{ item.lc_collate }}"
     lc_ctype: "{{ item.lc_ctype }}"
-    template: "template0"
+    template: "{{ item.template | default('template0') }}"
     login_host: "127.0.0.1"
     login_port: "{{ postgresql_port }}"
     login_user: "{{ patroni_superuser_username }}"
     login_password: "{{ patroni_superuser_password }}"
+    conn_limit: "{{ item.conn_limit | default(omit) }}"
     state: present
   ignore_errors: true
   loop: "{{ postgresql_databases | flatten(1) }}"

vars/main.yml

@@ -148,6 +148,7 @@ postgresql_users: []
 # (optional) list of databases to be created (if not already exists)
 postgresql_databases: []
 #  - { db: "mydatabase", encoding: "UTF8", lc_collate: "ru_RU.UTF-8", lc_ctype: "ru_RU.UTF-8", owner: "mydb-user" }
+#  - { db: "mydatabase2", encoding: "UTF8", lc_collate: "ru_RU.UTF-8", lc_ctype: "ru_RU.UTF-8", owner: "mydb-user", conn_limit: "50" }
 #  - { db: "", encoding: "UTF8", lc_collate: "en_US.UTF-8", lc_ctype: "en_US.UTF-8", owner: "" }
 #  - { db: "", encoding: "UTF8", lc_collate: "en_US.UTF-8", lc_ctype: "en_US.UTF-8", owner: "" }