lmdb: add lmdb management

CHANGELOG.md

@@ -1,3 +1,8 @@
+## v1.6.2 (UNRELEASED)
+
+NEW FEATURES:
+- Create directory, set the ownership and permissions for LMDB databases
+
 ## v1.6.1 (2020-10-01)
 
 BUG FIXES:

README.md

@@ -211,7 +211,7 @@ pdns_mysql_databases_credentials:
       - "localhost"
 ```
 
-Notice that this must only containes the credentials
+Notice that this must only contain the credentials
 for the `gmysql` backends provided in `pdns_backends`.
 
 ```yaml
@@ -221,6 +221,13 @@ pdns_sqlite_databases_locations: []
 Locations of the SQLite3 databases that have to be created if using the
 `gsqlite3` backend.
 
+```yaml
+pdns_lmdb_databases_locations: []
+```
+
+Locations of the LMDB databases that have to be created if using the
+`lmdb` backend.
+
 ## Example Playbooks
 
 Run as a master using the bind backend (when you already have a `named.conf` file):

defaults/main.yml

@@ -141,3 +141,8 @@ pdns_mysql_databases_credentials: {}
 # NOTE: Requries the SQLite CLI tools to be available in the machine and the gsqlite3
 # backend to be installed on the machine.
 pdns_sqlite_databases_locations: []
+
+# This will create the PowerDNS Authoritative Server backend LMDB database
+# in the given locations.
+# NOTE: Requries lmdb backend to be installed on the machine.
+pdns_lmdb_databases_locations: []

tasks/database-lmdb.yml

@@ -0,0 +1,10 @@
+---
+
+- name: Ensure that the directories containing the PowerDNS LMDB databases exist
+  file:
+    name: "{{ item | dirname }}"
+    owner: "{{ pdns_user }}"
+    group: "{{ pdns_group }}"
+    state: directory
+    mode: 0750
+  with_items: "{{ pdns_lmdb_databases_locations }}"

tasks/main.yml

@@ -39,6 +39,12 @@
     - db
     - sqlite
 
+- include: database-lmdb.yml
+  when: "pdns_lmdb_databases_locations | length > 0"
+  tags:
+    - db
+    - lmdb
+
 - include: configure.yml
   tags:
     - config