style: make ansible-lint happy

roles/postgres/handlers/main.yml

@@ -2,5 +2,5 @@
 
 - name: Restart postgres
   ansible.builtin.service:
-    name: "postgresql@{{ pg_version }}-main"
+    name: "postgresql@{{ postgres_pg_version }}-main"
     state: restarted

roles/postgres/tasks/main.yml

@@ -15,7 +15,7 @@
 
 - name: Populate postgresql directory
   ansible.builtin.command:
-    cmd: "/usr/lib/postgresql/{{ pg_version }}/bin/initdb -E UTF-8 /srv/postgresql/"
+    cmd: "/usr/lib/postgresql/{{ postgres_pg_version }}/bin/initdb -E UTF-8 /srv/postgresql/"
     creates: /srv/postgresql/PG_VERSION
   become: true
   become_user: postgres
@@ -24,14 +24,14 @@
 - name: Put hba configuration files
   ansible.builtin.copy:
     src: "files/pg_hba.conf"
-    dest: "/etc/postgresql/{{ pg_version }}/main/pg_hba.conf"
+    dest: "/etc/postgresql/{{ postgres_pg_version }}/main/pg_hba.conf"
     mode: "0640"
   notify: Restart postgres
 
 - name: Put main configuration files
   ansible.builtin.template:
     src: "postgresql.conf.j2"
-    dest: "/etc/postgresql/{{ pg_version }}/main/postgresql.conf"
+    dest: "/etc/postgresql/{{ postgres_pg_version }}/main/postgresql.conf"
     mode: "0644"
 
 - name: Create backup dir

roles/postgres/templates/postgresql.conf.j2

@@ -40,13 +40,13 @@
 
 data_directory = '/srv/postgresql'		# use data in another directory
 					# (change requires restart)
-hba_file = '/etc/postgresql/{{ pg_version }}/main/pg_hba.conf'	# host-based authentication file
+hba_file = '/etc/postgresql/{{ postgres_pg_version }}/main/pg_hba.conf'	# host-based authentication file
 					# (change requires restart)
-ident_file = '/etc/postgresql/{{ pg_version }}/main/pg_ident.conf'	# ident configuration file
+ident_file = '/etc/postgresql/{{ postgres_pg_version }}/main/pg_ident.conf'	# ident configuration file
 					# (change requires restart)
 
 # If external_pid_file is not explicitly set, no extra PID file is written.
-external_pid_file = '/var/run/postgresql/{{ pg_version }}-main.pid'			# write an extra PID file
+external_pid_file = '/var/run/postgresql/{{ postgres_pg_version }}-main.pid'			# write an extra PID file
 					# (change requires restart)
 
 
@@ -484,7 +484,7 @@ log_timezone = 'Europe/Paris'
 # PROCESS TITLE
 #------------------------------------------------------------------------------
 
-cluster_name = '{{ pg_version }}/main'			# added to process titles if nonempty
+cluster_name = '{{ postgres_pg_version }}/main'			# added to process titles if nonempty
 					# (change requires restart)
 #update_process_title = on
 
@@ -500,7 +500,7 @@ cluster_name = '{{ pg_version }}/main'			# added to process titles if nonempty
 #track_io_timing = off
 #track_functions = none			# none, pl, all
 #track_activity_query_size = 1024	# (change requires restart)
-#stats_temp_directory = '/var/run/postgresql/{{ pg_version }}-main.pg_stat_tmp'
+#stats_temp_directory = '/var/run/postgresql/{{ postgres_pg_version }}-main.pg_stat_tmp'
 
 
 # - Monitoring -

roles/postgres/vars/main.yml

@@ -1,10 +1,10 @@
 ---
 
-pg_versions:
+postgres_pg_versions:
   Debian:
     "9": 9.6
     "10": 11
     "11": 13
     "12": 15
 
-pg_version: "{{ pg_versions[ansible_os_family][ansible_distribution_major_version] }}"
+postgres_pg_version: "{{ postgres_pg_versions[ansible_os_family][ansible_distribution_major_version] }}"