Fill the README file.

README.md

@@ -1,7 +1,7 @@
 Role Name
 =========
 
-A role that 
+A role that installs a TimeScaleDB instance 
 
 Role Variables
 --------------
@@ -9,8 +9,26 @@ Role Variables
 The most important variables are listed below:
 
 ``` yaml
-users_system_users:
-  - { login: 'foo', name: "Foo Bar", home: '{{ users_home_dir }}', createhome: 'yes', ssh_key: '{{ foo_ssh_key }}', shell: '/bin/bash', admin: False, log_as_root: False }
+timescale_db_ubuntu_repo: 'ppa:timescale/timescaledb-ppa'
+timescale_db_pkg: 'timescaledb-2-postgresql-{{ psql_version }}'
+timescale_db_deb_pkgs: '{{ timescale_db_pkg }}'
+
+timescale_db_el_pkgs:
+  - '{{ timescale_db_pkg }}'
+  - libpq5-devel
+
+timescaledb_configuration_settings:
+  - { name: 'timescaledb.last_tuned', value: "'{{ ansible_date_time.date }}T{{ ansible_date_time.time }}{{ ansible_date_time.tz_offset }}'", set: 'True' }
+  - { name: 'timescaledb.last_tuned_version', value: "'0.11.0'", set: 'True' }
+  - { name: 'timescaledb.max_background_workers', value: '{{ ansible_processor_vcpus * 2 }}', set: 'True' }
+  - { name: 'max_worker_processes', value: '{{ (ansible_processor_vcpus * 4) - 1 }}', set: 'True' }
+  - { name: 'max_parallel_workers_per_gather', value: '{{ (ansible_processor_vcpus / 2) | int }}', set: 'True' }
+  - { name: 'max_parallel_workers ', value: '{{ ansible_processor_vcpus }}', set: 'True' }
+  - { name: 'default_statistics_target', value: '{{ (ansible_memtotal_mb / 16) | int }}', set: 'True' }
+  - { name: 'random_page_cost', value: '1.1', set: 'True' }
+  - { name: 'checkpoint_completion_target', value: '0.9', set: 'True' }
+  - { name: 'max_locks_per_transaction', value: '{{ ((ansible_memtotal_mb / 512) * ansible_processor_vcpus) | int }}', set: 'True' }
+  - { name: 'effective_io_concurrency', value: '200', set: 'True' }
 ```
 
 Dependencies

defaults/main.yml

@@ -1,6 +1,5 @@
 ---
 timescale_db_ubuntu_repo: 'ppa:timescale/timescaledb-ppa'
-
 timescale_db_pkg: 'timescaledb-2-postgresql-{{ psql_version }}'
 timescale_db_deb_pkgs: '{{ timescale_db_pkg }}'