Initial commit

tests/integration/targets/setup_postgresql_replication/defaults/main.yml

@@ -0,0 +1,30 @@
+# General:
+pg_user: postgres
+db_default: postgres
+
+pg_package_list:
+- apt-utils
+- postgresql
+- postgresql-contrib
+- python3-psycopg2
+
+packages_to_remove:
+- postgresql
+- postgresql-contrib
+- postgresql-server
+- postgresql-libs
+- python3-psycopg2
+
+# Master specific defaults:
+master_root_dir: '/var/lib/pgsql/master'
+master_data_dir: '{{ master_root_dir }}/data'
+master_postgresql_conf: '{{ master_data_dir }}/postgresql.conf'
+master_pg_hba_conf: '{{ master_data_dir }}/pg_hba.conf'
+master_port: 5433
+
+# Replica specific defaults:
+replica_root_dir: '/var/lib/pgsql/replica'
+replica_data_dir: '{{ replica_root_dir }}/data'
+replica_postgresql_conf: '{{ replica_data_dir }}/postgresql.conf'
+replica_pg_hba_conf: '{{ replica_data_dir }}/pg_hba.conf'
+replica_port: 5434

tests/integration/targets/setup_postgresql_replication/handlers/main.yml

@@ -0,0 +1,23 @@
+- name: Stop services
+  become: yes
+  become_user: '{{ pg_user }}'
+  shell: '{{ pg_ctl }} -D {{ item.datadir }} -o "-p {{ item.port }}" -m immediate stop'
+  loop:
+  - { datadir: '{{ master_data_dir }}', port: '{{ master_port }}' }
+  - { datadir: '{{ replica_data_dir }}', port: '{{ replica_port }}' }
+  listen: stop postgresql
+
+- name: Remove packages
+  apt:
+    name: '{{ packages_to_remove }}'
+    state: absent
+  listen: cleanup postgresql
+
+- name: Remove FS objects
+  file:
+    state: absent
+    path: "{{ item }}"
+  loop:
+  - "{{ master_root_dir }}"
+  - "{{ replica_root_dir }}"
+  listen: cleanup postgresql

tests/integration/targets/setup_postgresql_replication/tasks/main.yml

@@ -0,0 +1,8 @@
+# Copyright: (c) 2019, Andrew Klychkov (@Andersson007) <aaklychkov@mail.ru>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+# Setup PostgreSQL master-standby replication into one container:
+- import_tasks: setup_postgresql_cluster.yml
+  when:
+  - ansible_distribution == 'Ubuntu'
+  - ansible_distribution_major_version >= '18'

tests/integration/targets/setup_postgresql_replication/tasks/setup_postgresql_cluster.yml

@@ -0,0 +1,84 @@
+- name: Install packages
+  apt:
+    name: '{{ pg_package_list }}'
+  notify: cleanup postgresql
+- name: Create root dirs
+  file:
+    state: directory
+    path: '{{ item }}'
+    owner: postgres
+    group: postgres
+    mode: '0700'
+  loop:
+  - '{{ master_root_dir }}'
+  - '{{ master_data_dir }}'
+  - '{{ replica_root_dir }}'
+  - '{{ replica_data_dir }}'
+  notify: cleanup postgresql
+- name: Find initdb
+  shell: find /usr/lib -type f -name "initdb"
+  register: result
+- name: Set path to initdb
+  set_fact:
+    initdb: '{{ result.stdout }}'
+- name: Initialize databases
+  become: true
+  become_user: '{{ pg_user }}'
+  shell: '{{ initdb }} --pgdata {{ item }}'
+  loop:
+  - '{{ master_data_dir }}'
+  - '{{ replica_data_dir }}'
+- name: Copy config templates
+  template:
+    src: '{{ item.conf_templ }}'
+    dest: '{{ item.conf_dest }}'
+    owner: postgres
+    group: postgres
+    force: true
+  loop:
+  - conf_templ: master_postgresql.conf.j2
+    conf_dest: '{{ master_postgresql_conf }}'
+  - conf_templ: replica_postgresql.conf.j2
+    conf_dest: '{{ replica_postgresql_conf }}'
+  - conf_templ: pg_hba.conf.j2
+    conf_dest: '{{ master_pg_hba_conf }}'
+  - conf_templ: pg_hba.conf.j2
+    conf_dest: '{{ replica_pg_hba_conf }}'
+- name: Find pg_ctl
+  shell: find /usr/lib -type f -name "pg_ctl"
+  register: result
+- name: Set path to initdb
+  set_fact:
+    pg_ctl: '{{ result.stdout }}'
+- name: Start servers
+  become: true
+  become_user: '{{ pg_user }}'
+  shell: '{{ pg_ctl }} -D {{ item.datadir }} -o "-p {{ item.port }}" start'
+  loop:
+  - datadir: '{{ master_data_dir }}'
+    port: '{{ master_port }}'
+  - datadir: '{{ replica_data_dir }}'
+    port: '{{ replica_port }}'
+  notify: stop postgresql
+- name: Check connectivity to the master and get PostgreSQL version
+  become: true
+  become_user: '{{ pg_user }}'
+  postgresql_ping:
+    db: '{{ db_default }}'
+    login_user: '{{ pg_user }}'
+    login_port: '{{ master_port }}'
+  register: result
+- name: Check connectivity to the replica and get PostgreSQL version
+  become: true
+  become_user: '{{ pg_user }}'
+  postgresql_ping:
+    db: '{{ db_default }}'
+    login_user: '{{ pg_user }}'
+    login_port: '{{ replica_port }}'
+- name: Define server version
+  set_fact:
+    pg_major_version: '{{ result.server_version.major }}'
+    pg_minor_version: '{{ result.server_version.minor }}'
+- name: Print PostgreSQL version
+  debug:
+    msg: PostgreSQL version is {{ pg_major_version }}.{{ pg_minor_version }}

tests/integration/targets/setup_postgresql_replication/templates/master_postgresql.conf.j2

@@ -0,0 +1,28 @@
+# Important parameters:
+listen_addresses='*'
+port = {{ master_port }}
+wal_level = logical
+max_wal_senders = 8
+track_commit_timestamp = on
+max_replication_slots = 10
+
+# Unimportant parameters:
+max_connections=10
+shared_buffers=8MB
+dynamic_shared_memory_type=posix
+log_destination='stderr'
+logging_collector=on
+log_directory='log'
+log_filename='postgresql-%a.log'
+log_truncate_on_rotation=on
+log_rotation_age=1d
+log_rotation_size=0 
+log_line_prefix='%m[%p]'
+log_timezone='W-SU'
+datestyle='iso,mdy'
+timezone='W-SU'
+lc_messages='en_US.UTF-8'           
+lc_monetary='en_US.UTF-8'           
+lc_numeric='en_US.UTF-8'            
+lc_time='en_US.UTF-8'               
+default_text_search_config='pg_catalog.english'

tests/integration/targets/setup_postgresql_replication/templates/pg_hba.conf.j2

@@ -0,0 +1,7 @@
+local  all          all                                trust
+local  replication  logical_replication                trust
+host   replication  logical_replication  127.0.0.1/32  trust
+host   replication  logical_replication  0.0.0.0/0     trust
+local  all          logical_replication                trust
+host   all          logical_replication  127.0.0.1/32  trust
+host   all          logical_replication  0.0.0.0/0     trust

tests/integration/targets/setup_postgresql_replication/templates/replica_postgresql.conf.j2

@@ -0,0 +1,28 @@
+# Important parameters:
+listen_addresses='*'
+port = {{ replica_port }}
+wal_level = logical
+max_wal_senders = 8
+track_commit_timestamp = on
+max_replication_slots = 10
+
+# Unimportant parameters:
+max_connections=10
+shared_buffers=8MB
+dynamic_shared_memory_type=posix
+log_destination='stderr'
+logging_collector=on
+log_directory='log'
+log_filename='postgresql-%a.log'
+log_truncate_on_rotation=on
+log_rotation_age=1d
+log_rotation_size=0 
+log_line_prefix='%m[%p]'
+log_timezone='W-SU'
+datestyle='iso,mdy'
+timezone='W-SU'
+lc_messages='en_US.UTF-8'           
+lc_monetary='en_US.UTF-8'           
+lc_numeric='en_US.UTF-8'            
+lc_time='en_US.UTF-8'               
+default_text_search_config='pg_catalog.english'