add timescale installation

defaults/main.yml

@@ -4,17 +4,19 @@ postgres_repo: "https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_
 postgres_version: 13
 postgis_install: true
 postgis_version: 31
+postgis_version_pakage_name: postgis{{postgis_version}}_{{postgres_version}}
 pg_config_listen_addresses: localhost
 pg_config_port: 5432
 pg_config_max_connections: 1024
-pg_config_shared_buffers: 2GB
+pg_config_shared_buffers: 128MB
 pg_config_temp_buffers: 8MB
 pg_config_work_mem: 4MB
 pg_config_max_wal_size: 1GB
-pg_config_min_wal_size: 4G
+pg_config_min_wal_size: 256MB
 pg_config_log_filename: postgresql-%Y-%m-%d_%H%M%S.log
 pg_config_timezone: "Europe/Rome"
 pg_config_row: ""
+pg_config_shared_preload_libraries: []
 # pg_config_row: |
 #   max_connections = 200
 #   effective_cache_size = 6GB
@@ -31,7 +33,9 @@ pg_config_row: ""
 #   max_parallel_workers_per_gather = 1
 #   max_parallel_workers = 2
 #   max_parallel_maintenance_workers = 1
-
+additional_extension:
+  # - postgis
+  - timescale
 pg_hba_user_options:
   - contype: host
     users: all

molecule/default/prepare.yml

@@ -1,7 +1,18 @@
+- name: Connection Wait
+  hosts: all
+  become: true
+  gather_facts: no
+  tasks:
+  - name: Wait 60 seconds, but only start checking after 15 seconds
+    wait_for_connection:
+      delay: 15
+      timeout: 60
+
 - name: prepare
   hosts: all
   become: true
   tasks:
+
   - name: prepare | install python3-pip
     dnf:
       name:

tasks/extension/postgis.yaml

@@ -0,0 +1,16 @@
+- name: postgres | install | extension | postgis | add powertools repository
+  yum_repository:
+    name: powertools
+    description: Rocky Linux $releasever - PowerTools
+    file: external_repos
+    mirrorlist: https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=PowerTools-$releasever
+    gpgkey: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rockyofficial
+    enabled: yes
+
+- name: postgres | install | extension | postgis | enable powertools and install "{{postgis_version_pakage_name}}"
+  dnf:
+    enablerepo: powertools
+    name:
+      - "{{postgis_version_pakage_name}}"
+    state: present
+  when: postgis_install

tasks/extension/timescale.yaml

@@ -0,0 +1,13 @@
+
+- name: postgres | install | extension | timescale | add timescale repo
+  ansible.builtin.template:
+    src: installation/timescale.repo.j2
+    dest: /etc/yum.repos.d/timescale_timescaledb.repo
+
+- name: postgres | install | install postgresql
+  dnf:
+    name:
+      - timescaledb-2-postgresql-{{postgres_version}}
+    state: present
+  notify:
+    - restart postgreql

tasks/install.yml

@@ -1,7 +1,32 @@
 ---
+- name: Distribution
+  debug:
+    msg: "{{ ansible_distribution }}"
+
+- name: Distribution version
+  debug:
+    msg: "{{ ansible_distribution_version}}"
+
+- name: Distribution major version
+  debug:
+    msg: "{{ ansible_distribution_major_version }}"
+
+- name: postgres | install | postgres pre-install show shared_preload_libraries list
+  debug:
+    msg: "{{ pg_config_shared_preload_libraries + ['timescaledb'] }}"
+
+- name: postgres | install | timescale pre-install
+  set_fact:
+    pg_config_shared_preload_libraries: "{{ pg_config_shared_preload_libraries + ['timescaledb'] }}"
+  when: '"timescale" in additional_extension'
+
+- name: postgres | install | postgres pre-install show shared_preload_libraries list
+  debug:
+    msg: "{{ pg_config_shared_preload_libraries }}"
+
 - name: postgres | install | install postgres repo
   dnf:
-    name: 'https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm'
+    name: "https://download.postgresql.org/pub/repos/yum/reporpms/EL-{{ ansible_distribution_major_version }}-x86_64/pgdg-redhat-repo-latest.noarch.rpm"
     state: present
     disable_gpg_check: yes
 
@@ -23,19 +48,7 @@
     name: epel-release
     state: present
 
-- name: postgres | install | enabled repo powertools
+- name: postgres | install | install custom extension
-  yum_repository:
+  include_tasks: "tasks/extension/{{ item }}.yaml"
-    name: powertools
+  with_items: "{{ additional_extension }}"
-    description: Rocky Linux $releasever - PowerTools
+  # when: additional_extension
-    file: external_repos
-    mirrorlist: https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=PowerTools-$releasever
-    gpgkey: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rockyofficial
-    enabled: yes
-
-- name: postgres | install | install postgis
-  dnf:
-    enablerepo: powertools
-    name:
-      - postgis31_13
-    state: present
-  when: postgis_install

templates/installation/timescale.repo.j2

@@ -0,0 +1,10 @@
+[timescale_timescaledb]
+name=timescale_timescaledb
+baseurl=https://packagecloud.io/timescale/timescaledb/el/{{ ansible_distribution_major_version }}/$basearch
+repo_gpgcheck=1
+gpgcheck=0
+enabled=1
+gpgkey=https://packagecloud.io/timescale/timescaledb/gpgkey
+sslverify=1
+sslcacert=/etc/pki/tls/certs/ca-bundle.crt
+metadata_expire=300

templates/postgresql.conf.j2

@@ -710,8 +710,11 @@ lc_time = 'en_US.UTF-8'				# locale for time formatting
 default_text_search_config = 'pg_catalog.english'
 
 # - Shared Library Preloading -
-
+{% if pg_config_shared_preload_libraries %}
+shared_preload_libraries = '{{ pg_config_shared_preload_libraries | join(',') }}'
+{% else %}
 #shared_preload_libraries = ''	# (change requires restart)
+{% endif %}
 #local_preload_libraries = ''
 #session_preload_libraries = ''
 #jit_provider = 'llvmjit'		# JIT library to use