rewrite restore logic

defaults/main.yaml

@@ -13,20 +13,23 @@ postgresql_ssl_keep_nonssl_endpoint: false
 postgresql_self_signed_cert: true
 postgresql_self_signed_cert_name: "cert"
 
-## Backup and restore options
+## WAL-G backup and restore options
 postgresql_wal_g_install: false
-postgresql_wal_g_restore: false
+postgresql_wal_g_restore_from_backup: false
 postgresql_wal_g_force_delete_and_restore: false
 postgresql_wal_g_config_name: ".walg.json"
 postgresql_wal_g_restore_config_name: ".walg-restore.json"
+postgresql_wal_g_pitr: 'latest'
+postgresql_wal_g_restore_backup_name: 'LATEST'
 postgresql_wal_g_binary_name: "wal-g-pg"
-postgresql_wal_g_postgresql_pitr: "LATEST"
+
 postgresql_recovery_target_time: ""
 postgresql_promote_trigger_file: "{{ postgresql_data_dir }}/promote.trigger"
 
 postgresql_password_encryption_algorithm: "scram-sha-256"
 postgresql_default_parameters:
   data_directory: '{{ postgresql_data_dir }}'
+  archive_mode: "{{ postgresql_archive_mode | default('on') }}" 
   listen_addresses: '*'
   max_connections: '1000'
   superuser_reserved_connections: '5'
@@ -59,8 +62,9 @@ postgresql_default_parameters:
 
 postgresql_backup_parameters:
   archive_command: "{{ postgresql_archive_command | default('cd .')}}"
+
+postgresql_restore_parameters:
   restore_command: "{{ postgresql_restore_command | default('cd .') }}"
-  archive_mode: "{{ postgresql_archive_mode | default('on') }}" 
 
 postgresql_log_dir: "/var/log/postgresql"
 

tasks/Debian/config.yaml

@@ -19,8 +19,11 @@
 
 - name: Merge backup options for PostgreSQL config
   set_fact:
-    postgresql_combined_parameters: "{{ postgresql_combined_parameters | combine(postgresql_backup_parameters|default({}), recursive=true) }}"
-  when:
+    postgresql_combined_parameters: "{{ postgresql_combined_parameters | combine(postgresql_backup_parameters, recursive=true) }}"
+
+- name: Merge restore options for PostgreSQL config
+  set_fact:
+    postgresql_combined_parameters: "{{ postgresql_combined_parameters | combine(postgresql_restore_parameters, recursive=true) }}"
 
 - name: Propagate PostgreSQL configs
   block:

tasks/Debian/main.yaml

@@ -6,6 +6,10 @@
   include_tasks: config.yaml
   tags: postgresql_configuration
 
+- name: "Manage TLS/SSL certificates"
+  include_tasks: cacert.yaml
+  when: postgresql_ssl
+
 - name: Include WAL-G role
   ansible.builtin.include_role:
     name: wal-g
@@ -16,6 +20,10 @@
     wal_g_restore: "{{ postgresql_wal_g_restore }}"
   when: postgresql_wal_g_install
 
+- name: Include PostgreSQL restore
+  include_tasks: restore.yaml
+  when: postgresql_wal_g_restore_from_backup
+
 - name: "PostgreSQL initdb"
   become_user: "{{ postgresql_superuser_username }}"
   shell: "/usr/lib/postgresql/{{ postgresql_major_version }}/bin/initdb -D {{ postgresql_data_dir }} --username {{ postgresql_superuser_username }} --auth-local peer --auth-host {{ postgresql_password_encryption_algorithm }} --no-instructions"

tasks/RedHat/config.yaml

@@ -6,7 +6,10 @@
 - name: Merge backup options for PostgreSQL config
   set_fact:
     postgresql_combined_parameters: "{{ postgresql_combined_parameters | combine(postgresql_backup_parameters|default({}), recursive=true) }}"
-  when:
+
+- name: Merge restore options for PostgreSQL config
+  set_fact:
+    postgresql_combined_parameters: "{{ postgresql_combined_parameters | combine(postgresql_restore_parameters|default({}), recursive=true) }}"
 
 - name: Propagate PostgreSQL configs
   block:

tasks/RedHat/main.yaml

@@ -27,6 +27,10 @@
 - name: Include data direcory
   include_tasks: data_dir.yaml
 
+- name: "Manage TLS/SSL certificates"
+  include_tasks: cacert.yaml
+  when: postgresql_ssl
+
 - name: Include WAL-G role
   ansible.builtin.include_role:
     name: wal-g
@@ -39,7 +43,7 @@
 
 - name: Include PostgreSQL restore
   include_tasks: restore.yaml
-  when: postgresql_wal_g_restore
+  when: postgresql_wal_g_restore_from_backup
 
 - name: PostgreSQL Initdb
   shell: "/usr/pgsql-{{ postgresql_major_version }}/bin/postgresql-{{ postgresql_major_version }}-setup initdb --username {{ postgresql_superuser_username }} --auth-host {{ postgresql_password_encryption_algorithm }}"

tasks/main.yaml

@@ -27,9 +27,9 @@
   include_tasks: "{{ ansible_facts['os_family'] }}/main.yaml"
   tags: postgresql_setup
 
-- name: "Manage TLS/SSL certificates"
-  include_tasks: cacert.yaml
-  when: postgresql_ssl
+#- name: "Manage TLS/SSL certificates"
+#  include_tasks: cacert.yaml
+#  when: postgresql_ssl
 
 - name: Enable and start PostgreSQL
   systemd:

tasks/restore.yaml

@@ -29,27 +29,27 @@
     - postgresql_files_found.matched == 0
   block:
     - name: Restore database dir from backup
-      shell:  "{{ postgresql_wal_g_binary_name ~ ' --config ' ~ postgresql_home_dir ~ '/' ~ postgresql_wal_g_restore_config_name ~ ' backup-fetch ' ~ postgresql_data_dir ~ ' ' ~ postgresql_wal_g_postgresql_pitr }}"
+      shell:  "{{ postgresql_wal_g_binary_name ~ ' --config ' ~ postgresql_home_dir ~ '/' ~ postgresql_wal_g_restore_config_name ~ ' backup-fetch ' ~ postgresql_data_dir ~ ' ' ~ postgresql_wal_g_restore_backup_name }}"
       become_user: postgres
-    
+
     - name: Include PostgreSQL configuration
       vars:
         postgresql_archive_command: "cd ."
         postgresql_restore_command: "{{ postgresql_wal_g_binary_name ~ ' --config ' ~ postgresql_home_dir ~ '/' ~ postgresql_wal_g_restore_config_name ~ ' wal-fetch %f %p' }}"
       include_tasks: config.yaml
-    
+
     - name: Create recovery.signal file
-      file:  
+      file:
         name: "{{ postgresql_data_dir }}/recovery.signal"
         state: touch
       become_user: postgres
-    
-    - name: Create standby.signal file
-      file:  
-        name: "{{ postgresql_data_dir }}/standby.signal"
-        state: touch
-      become_user: postgres
-    
+
+    #- name: Create standby.signal file
+    #  file:
+    #    name: "{{ postgresql_data_dir }}/standby.signal"
+    #    state: touch
+    #  become_user: postgres
+
     - name: Start PostgreSQL for recovery
       systemd:
         daemon_reload: true
@@ -57,19 +57,19 @@
         state: started
         masked: no
       register: postgresql_start_for_recovery
-    
+
     - name: Ping PostgreSQL server
       vars:
         ansible_python_interpreter: '/usr/bin/env python3'
       community.postgresql.postgresql_ping:
         db: "{{ postgresql_superuser_db }}"
         login_user: "{{ postgresql_superuser_username }}"
-        login_password: "{{ postgresql_superuser_password }}" 
+        login_password: "{{ postgresql_superuser_password }}"
       register: postgresql_ping
       until: postgresql_ping.is_available
       retries: 60
       delay: 20
-    
+
     - name: debug
       debug:
         msg: "{{ postgresql_ping }}"
@@ -83,7 +83,10 @@
       register: postgresql_stop
 
     - name: Create promote trigger file
-      file:  
+      file:
         name: "{{ postgresql_promote_trigger_file }}"
         state: touch
       become_user: postgres
+
+    - name: Include PostgreSQL configuration
+      include_tasks: config.yaml