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# Copyright: (c) 2019, Andrew Klychkov (@Andersson007) <aaklychkov@mail.ru>
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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# Setup PostgreSQL master-standby replication into one container:
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- import_tasks: setup_postgresql_cluster.yml
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when:
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- ansible_distribution == 'Ubuntu'
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- ansible_distribution_major_version >= '18'
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- name: Install packages
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apt:
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name: '{{ pg_package_list }}'
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notify: cleanup postgresql
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- name: Create root dirs
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file:
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state: directory
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path: '{{ item }}'
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owner: postgres
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group: postgres
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mode: '0700'
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loop:
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- '{{ master_root_dir }}'
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- '{{ master_data_dir }}'
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- '{{ replica_root_dir }}'
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- '{{ replica_data_dir }}'
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notify: cleanup postgresql
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- name: Find initdb
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shell: find /usr/lib -type f -name "initdb"
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register: result
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- name: Set path to initdb
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set_fact:
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initdb: '{{ result.stdout }}'
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- name: Initialize databases
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become: true
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become_user: '{{ pg_user }}'
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shell: '{{ initdb }} --pgdata {{ item }}'
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loop:
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- '{{ master_data_dir }}'
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- '{{ replica_data_dir }}'
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- name: Copy config templates
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template:
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src: '{{ item.conf_templ }}'
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dest: '{{ item.conf_dest }}'
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owner: postgres
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group: postgres
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force: true
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loop:
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- conf_templ: master_postgresql.conf.j2
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conf_dest: '{{ master_postgresql_conf }}'
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- conf_templ: replica_postgresql.conf.j2
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conf_dest: '{{ replica_postgresql_conf }}'
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- conf_templ: pg_hba.conf.j2
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conf_dest: '{{ master_pg_hba_conf }}'
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- conf_templ: pg_hba.conf.j2
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conf_dest: '{{ replica_pg_hba_conf }}'
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- name: Find pg_ctl
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shell: find /usr/lib -type f -name "pg_ctl"
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register: result
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- name: Set path to initdb
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set_fact:
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pg_ctl: '{{ result.stdout }}'
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- name: Start servers
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become: true
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become_user: '{{ pg_user }}'
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shell: '{{ pg_ctl }} -D {{ item.datadir }} -o "-p {{ item.port }}" start'
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loop:
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- datadir: '{{ master_data_dir }}'
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port: '{{ master_port }}'
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- datadir: '{{ replica_data_dir }}'
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port: '{{ replica_port }}'
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notify: stop postgresql
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- name: Check connectivity to the master and get PostgreSQL version
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become: true
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become_user: '{{ pg_user }}'
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postgresql_ping:
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db: '{{ db_default }}'
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login_user: '{{ pg_user }}'
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login_port: '{{ master_port }}'
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register: result
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- name: Check connectivity to the replica and get PostgreSQL version
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become: true
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become_user: '{{ pg_user }}'
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postgresql_ping:
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db: '{{ db_default }}'
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login_user: '{{ pg_user }}'
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login_port: '{{ replica_port }}'
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- name: Define server version
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set_fact:
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pg_major_version: '{{ result.server_version.major }}'
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pg_minor_version: '{{ result.server_version.minor }}'
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- name: Print PostgreSQL version
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debug:
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msg: PostgreSQL version is {{ pg_major_version }}.{{ pg_minor_version }}
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