DEV-1114 Fixing postgres shared host variables

- Update postgres role: use blockinfile instead lineinfile

host_vars/devnso-postgres02-01.yml

@@ -1,3 +1,5 @@
 ---
 server_type: "master"
 lvm_volume_encryption: true
+
+shared_service_postgres_secondary: "{{ stage }}-postgres02-02"

host_vars/devnso-postgres02-02.yml

@@ -1,3 +1,5 @@
 ---
 server_type: "slave"
 lvm_volume_encryption: true
+
+shared_service_postgres_primary: "{{ stage }}-postgres02-01"

host_vars/prodnso-postgres02-01.yml

@@ -9,3 +9,5 @@ postgres_pgdatadir_lvm_hcloudvol_count: 2
 postgres_pgdatadir_lvm_hcloudvol_size: 30
 
 lvm_volume_encryption: true
+
+shared_service_postgres_secondary: "{{ stage }}-postgres02-02"

host_vars/prodnso-postgres02-02.yml

@@ -9,3 +9,5 @@ postgres_pgdatadir_lvm_hcloudvol_count: 2
 postgres_pgdatadir_lvm_hcloudvol_size: 30
 
 lvm_volume_encryption: true
+
+shared_service_postgres_primary: "{{ stage }}-postgres02-01"

host_vars/qa-postgres02-01.yml

@@ -1,3 +1,5 @@
 ---
 server_type: "master"
 lvm_volume_encryption: true
+
+shared_service_postgres_secondary: "{{ stage }}-postgres02-02"

host_vars/qa-postgres02-02.yml

@@ -1,3 +1,5 @@
 ---
 server_type: "slave"
 lvm_volume_encryption: true
+
+shared_service_postgres_primary: "{{ stage }}-postgres02-01"

restore-remote-database-backup.yml

@@ -207,7 +207,7 @@
     ansible_ssh_host: "{{ stage_server_domain }}"
     database_servers: "{{ hostvars[stage + '-virtual-host-to-read-groups-vars'].database_servers }}"
   tasks:
-    - name: "Start restore test for '{{ database_engine }}' backup from server '{{ database_server }}'"
+    - name: "Start restore test for <{{ database_engine }}>"
       include_role:
         name: "restore_{{ database_engine }}"
         tasks_from: _restore_test

roles/postgres/tasks/slave-requirements.yml

@@ -16,17 +16,16 @@
     line: "hot_standby_feedback = on"
     path: /etc/postgresql/{{ default_postgres_version }}/main/postgresql.conf
 
-- name: Create hosts entry for master (db-master)
-  lineinfile:
-    path: /etc/hosts
-    line: "{{ shared_service_pg_master_ip }} db-master"
-    state: present
-
-- name: Create hosts entry for backups (db-backups)
-  lineinfile:
-    path: /etc/hosts
-    line: "{{ shared_service_pg_master_ip }} db-backups"
+- name: "Setting hosts configuration for for db-master and db-backups in /etc/hosts"
+  blockinfile:
+    marker: "# {mark} managed by ansible (hosts config for db-master and db-backups)"
+    path: "/etc/hosts"
+    mode: "0644"
     state: present
+    create: yes
+    block: |
+      {{ shared_service_pg_master_ip + ' ' + 'db-master' }}
+      {{ shared_service_pg_master_ip + ' ' + 'db-backup' }}
 
 - name: Wait for nfsd is up and running
   wait_for: