Support postgres v9.6 in docker

defaults/main.yml

@@ -13,7 +13,11 @@ postgresql_ctype_parts:
 postgresql_ctype: "{{ postgresql_ctype_parts | join('.') }}"
 
 postgresql_admin_user: "postgres"
+# Pwd only needed in docker mode, which uses md5 authentication
+postgresql_admin_pwd: ""
 postgresql_default_auth_method: "trust"
+postgresql_login_host: "localhost"
+postgresql_login_port: 5432
 
 # The user/group that will run postgresql process or service
 postgresql_service_user: "{{ postgresql_admin_user }}"
@@ -59,6 +63,7 @@ postgresql_pg_hba_passwd_hosts: []
 postgresql_pg_hba_trust_hosts: []
 postgresql_pg_hba_custom: []
 
+postgresql_docker_mode: no
 
 # postgresql.conf
 
@@ -79,6 +84,9 @@ postgresql_pid_directory: "/var/run/postgresql"
 # If external_pid_file is not explicitly set, on extra PID file is written
 postgresql_external_pid_file: "{{ postgresql_pid_directory }}/{{postgresql_version}}-{{postgresql_cluster_name}}.pid"
 
+# Path on the host where the docker data directory is mounted (only for docker mode)
+postgresql_data_directory_docker_mount: ""
+
 #------------------------------------------------------------------------------
 # CONNECTIONS AND AUTHENTICATION
 #------------------------------------------------------------------------------
@@ -671,6 +679,12 @@ postgresql_exit_on_error: off
 # Reinitialize after backend crash?
 postgresql_restart_after_crash: on
 
+#------------------------------------------------------------------------------
+# OTHER OPTIONS
+#------------------------------------------------------------------------------
+
+# Additional options in the form of list of dictionaries (key, value)
+postgresql_custom_options: []
 
 #------------------------------------------------------------------------------
 # PGTUNE

tasks/configure-docker.yml

@@ -0,0 +1,22 @@
+# file: postgresql/tasks/configure-docker.yml
+
+- name: PostgreSQL | Update configuration - pt. 1 (pg_hba.conf)
+  template:
+    src: pg_hba.conf.j2
+    dest: "{{postgresql_data_directory_docker_mount}}/pg_hba.conf"
+    mode: 0640
+  register: postgresql_configuration_pt1
+
+- name: PostgreSQL | Update configuration - pt. 2 (postgresql.conf)
+  template:
+    src: "postgresql.conf-{{ postgresql_version }}.j2"
+    # if using pgtune, save the template to ".untuned"
+    dest: "{{postgresql_data_directory_docker_mount}}/postgresql.conf{% if postgresql_pgtune %}.untuned{% endif %}"
+    mode: 0640
+  register: postgresql_configuration_pt2
+
+- name: PostgreSQL | Create folder for additional configuration files
+  file:
+    name: "{{postgresql_data_directory_docker_mount}}/conf.d"
+    state: directory
+    mode: 0755

tasks/databases-common.yml

@@ -0,0 +1,95 @@
+---
+
+- name: PostgreSQL | Make sure the PostgreSQL databases are present
+  postgresql_db:
+    name: "{{item.name}}"
+    owner: "{{ item.owner | default(postgresql_database_owner) }}"
+    encoding: "{{ item.encoding | default(postgresql_encoding) }}"
+    lc_collate: "{{ item.lc_collate | default(postgresql_locale) }}"
+    lc_ctype: "{{ item.lc_ctype | default(postgresql_ctype) }}"
+    port: "{{ (postgresql_docker_mode) | ternary(postgresql_login_port, postgresql_port) }}"
+    template: "template0"
+    state: present
+    login_user: "{{postgresql_admin_user}}"
+    login_password: "{{ (postgresql_docker_mode) | ternary(postgresql_admin_pwd, omit) }}"
+    login_host: "{{ (postgresql_docker_mode) | ternary(postgresql_login_host, omit) }}"
+  become: yes
+  become_user: "{{ (postgresql_docker_mode) | ternary('root', postgresql_admin_user) }}"
+  with_items: "{{postgresql_databases}}"
+  when: postgresql_databases|length > 0
+
+- name: PostgreSQL | Add extensions to the databases
+  shell: "psql {{item.0.db}} --username {{postgresql_admin_user}} {{ postgres_login_host_switch }} -c 'CREATE EXTENSION IF NOT EXISTS {{ item.1 }};'"
+  become: yes
+  become_user: "{{ (postgresql_docker_mode) | ternary('root', postgresql_service_user) }}"
+  with_subelements:
+    - "{{postgresql_database_extensions}}"
+    - extensions
+  register: result
+  changed_when: "'NOTICE' not in result.stderr"
+  environment: "{{ postgres_env_switch }}"
+
+- name: PostgreSQL | Add hstore to the databases with the requirement
+  become: yes
+  become_user: "{{ (postgresql_docker_mode) | ternary('root', postgresql_service_user) }}"
+  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{postgresql_admin_user}} {{ postgres_login_host_switch }} -c 'CREATE EXTENSION IF NOT EXISTS hstore;'"
+  with_items: "{{postgresql_databases}}"
+  register: hstore_ext_result
+  failed_when: hstore_ext_result.rc != 0 and ("already exists, skipping" not in hstore_ext_result.stderr)
+  changed_when: hstore_ext_result.rc == 0 and ("already exists, skipping" not in hstore_ext_result.stderr)
+  when: item.hstore is defined and item.hstore
+  environment: "{{ postgres_env_switch }}"
+
+- name: PostgreSQL | Add uuid-ossp to the database with the requirement
+  become: yes
+  become_user: "{{ (postgresql_docker_mode) | ternary('root', postgresql_service_user) }}"
+  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{postgresql_admin_user}} {{ postgres_login_host_switch }} -c 'CREATE EXTENSION IF NOT EXISTS \"uuid-ossp\";'"
+  with_items: "{{postgresql_databases}}"
+  register: uuid_ext_result
+  failed_when: uuid_ext_result.rc != 0 and ("already exists, skipping" not in uuid_ext_result.stderr)
+  changed_when: uuid_ext_result.rc == 0 and ("already exists, skipping" not in uuid_ext_result.stderr)
+  when: item.uuid_ossp is defined and item.uuid_ossp
+  environment: "{{ postgres_env_switch }}"
+
+- name: PostgreSQL | Add postgis to the databases with the requirement
+  become: yes
+  become_user: "{{ (postgresql_docker_mode) | ternary('root', postgresql_service_user) }}"
+  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{postgresql_admin_user}} {{ postgres_login_host_switch }} -c 'CREATE EXTENSION IF NOT EXISTS postgis;'&&psql {{item.name}} --username {{postgresql_admin_user}} {{ postgres_login_host_switch }} -c 'CREATE EXTENSION IF NOT EXISTS postgis_topology;'"
+  with_items: "{{postgresql_databases}}"
+  when: item.gis is defined and item.gis
+  environment: "{{ postgres_env_switch }}"
+
+- name: PostgreSQL | add cube to the database with the requirement
+  become: yes
+  become_user: "{{ (postgresql_docker_mode) | ternary('root', postgresql_service_user) }}"
+  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{ postgresql_admin_user }} {{ postgres_login_host_switch }} -c 'create extension if not exists cube;'"
+  with_items: "{{postgresql_databases}}"
+  when: item.cube is defined and item.cube
+  environment: "{{ postgres_env_switch }}"
+
+- name: PostgreSQL | Add plpgsql to the database with the requirement
+  become: yes
+  become_user: "{{ (postgresql_docker_mode) | ternary('root', postgresql_service_user) }}"
+  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{ postgresql_admin_user }} {{ postgres_login_host_switch }} -c 'CREATE EXTENSION IF NOT EXISTS plpgsql;'"
+  with_items: "{{postgresql_databases}}"
+  when: item.plpgsql is defined and item.plpgsql
+  environment: "{{ postgres_env_switch }}"
+
+- name: PostgreSQL | add earthdistance to the database with the requirement
+  become: yes
+  become_user: "{{ (postgresql_docker_mode) | ternary('root', postgresql_service_user) }}"
+  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{ postgresql_admin_user }} {{ postgres_login_host_switch }} -c 'create extension if not exists earthdistance;'"
+  with_items: "{{postgresql_databases}}"
+  when: item.earthdistance is defined and item.earthdistance
+  environment: "{{ postgres_env_switch }}"
+
+- name: PostgreSQL | Add citext to the database with the requirement
+  become: yes
+  become_user: "{{ (postgresql_docker_mode) | ternary('root', postgresql_service_user) }}"
+  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{postgresql_admin_user}} {{ postgres_login_host_switch }} -c 'CREATE EXTENSION IF NOT EXISTS citext;'"
+  with_items: "{{postgresql_databases}}"
+  register: citext_ext_result
+  failed_when: citext_ext_result.rc != 0 and ("already exists, skipping" not in citext_ext_result.stderr)
+  changed_when: citext_ext_result.rc == 0 and ("already exists, skipping" not in citext_ext_result.stderr)
+  when: item.citext is defined and item.citext
+  environment: "{{ postgres_env_switch }}"

tasks/databases-docker.yml

@@ -0,0 +1,9 @@
+# file: postgresql/tasks/databases-docker.yml
+
+# Prepare facts for the docker configuration
+- set_fact:
+    postgres_login_host_switch: "--host {{postgresql_login_host}} --port {{postgresql_login_port}}"
+    postgres_env_switch:
+      PGPASSWORD: "{{postgresql_admin_pwd}}"
+
+- include: databases-common.yml

tasks/databases.yml

@@ -5,86 +5,9 @@
     name: "{{ postgresql_service_name }}"
     state: started
 
-- name: PostgreSQL | Make sure the PostgreSQL databases are present
-  postgresql_db:
-    name: "{{item.name}}"
-    owner: "{{ item.owner | default(postgresql_database_owner) }}"
-    encoding: "{{ item.encoding | default(postgresql_encoding) }}"
-    lc_collate: "{{ item.lc_collate | default(postgresql_locale) }}"
-    lc_ctype: "{{ item.lc_ctype | default(postgresql_ctype) }}"
-    port: "{{postgresql_port}}"
-    template: "template0"
-    state: present
-    login_user: "{{postgresql_admin_user}}"
-  become: yes
-  become_user: "{{postgresql_admin_user}}"
-  with_items: "{{postgresql_databases}}"
-  when: postgresql_databases|length > 0
+# Prepare facts for the non-docker configuration
+- set_fact:
+    postgres_login_host_switch: "--port {{postgresql_port}}"
+    postgres_env_switch: {}
 
-- name: PostgreSQL | Add extensions to the databases
-  shell: "psql {{item.0.db}} --username {{postgresql_admin_user}} -c 'CREATE EXTENSION IF NOT EXISTS {{ item.1 }};'"
-  become: yes
-  become_user: "{{postgresql_service_user}}"
-  with_subelements:
-    - "{{postgresql_database_extensions}}"
-    - extensions
-  register: result
-  changed_when: "'NOTICE' not in result.stderr"
-
-- name: PostgreSQL | Add hstore to the databases with the requirement
-  become: yes
-  become_user: "{{postgresql_service_user}}"
-  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{postgresql_admin_user}} -c 'CREATE EXTENSION IF NOT EXISTS hstore;'"
-  with_items: "{{postgresql_databases}}"
-  register: hstore_ext_result
-  failed_when: hstore_ext_result.rc != 0 and ("already exists, skipping" not in hstore_ext_result.stderr)
-  changed_when: hstore_ext_result.rc == 0 and ("already exists, skipping" not in hstore_ext_result.stderr)
-  when: item.hstore is defined and item.hstore
-
-- name: PostgreSQL | Add uuid-ossp to the database with the requirement
-  become: yes
-  become_user: "{{postgresql_service_user}}"
-  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{postgresql_admin_user}} -c 'CREATE EXTENSION IF NOT EXISTS \"uuid-ossp\";'"
-  with_items: "{{postgresql_databases}}"
-  register: uuid_ext_result
-  failed_when: uuid_ext_result.rc != 0 and ("already exists, skipping" not in uuid_ext_result.stderr)
-  changed_when: uuid_ext_result.rc == 0 and ("already exists, skipping" not in uuid_ext_result.stderr)
-  when: item.uuid_ossp is defined and item.uuid_ossp
-
-- name: PostgreSQL | Add postgis to the databases with the requirement
-  become: yes
-  become_user: "{{postgresql_service_user}}"
-  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{postgresql_admin_user}} -c 'CREATE EXTENSION IF NOT EXISTS postgis;'&&psql {{item.name}} -c 'CREATE EXTENSION IF NOT EXISTS postgis_topology;'"
-  with_items: "{{postgresql_databases}}"
-  when: item.gis is defined and item.gis
-
-- name: PostgreSQL | add cube to the database with the requirement
-  become: yes
-  become_user: "{{postgresql_service_user}}"
-  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{ postgresql_admin_user }} -c 'create extension if not exists cube;'"
-  with_items: "{{postgresql_databases}}"
-  when: item.cube is defined and item.cube
-
-- name: PostgreSQL | Add plpgsql to the database with the requirement
-  become: yes
-  become_user: "{{postgresql_service_user}}"
-  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{ postgresql_admin_user }} -c 'CREATE EXTENSION IF NOT EXISTS plpgsql;'"
-  with_items: "{{postgresql_databases}}"
-  when: item.plpgsql is defined and item.plpgsql
-
-- name: PostgreSQL | add earthdistance to the database with the requirement
-  become: yes
-  become_user: "{{postgresql_service_user}}"
-  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{ postgresql_admin_user }} -c 'create extension if not exists earthdistance;'"
-  with_items: "{{postgresql_databases}}"
-  when: item.earthdistance is defined and item.earthdistance
-
-- name: PostgreSQL | Add citext to the database with the requirement
-  become: yes
-  become_user: "{{postgresql_service_user}}"
-  shell: "{{ postgresql_bin_directory}}/psql {{item.name}} --username {{postgresql_admin_user}} -c 'CREATE EXTENSION IF NOT EXISTS citext;'"
-  with_items: "{{postgresql_databases}}"
-  register: citext_ext_result
-  failed_when: citext_ext_result.rc != 0 and ("already exists, skipping" not in citext_ext_result.stderr)
-  changed_when: citext_ext_result.rc == 0 and ("already exists, skipping" not in citext_ext_result.stderr)
-  when: item.citext is defined and item.citext
+- include: databases-common.yml

tasks/install.yml

@@ -1,5 +1,19 @@
 # file: postgresql/tasks/install.yml
 
+- name: Define packages to be installed
+  set_fact:
+    postgres_packages:
+      - "postgresql-{{postgresql_version}}"
+      - "postgresql-client-{{postgresql_version}}"
+      - "postgresql-contrib-{{postgresql_version}}"
+  when: not postgresql_docker_mode
+
+- name: Define packages to be installed (docker mode)
+  set_fact:
+    postgres_packages:
+      - "postgresql-client-{{postgresql_version}}"
+  when: postgresql_docker_mode
+
 # The standard ca-certs are needed because  without them apt_key will fail to
 # validate www.postgresql.org (or probably any other source).
 - name: PostgreSQL | Make sure the CA certificates are available
@@ -43,9 +57,7 @@
     cache_valid_time: "{{apt_cache_valid_time | default (3600)}}"
   environment: "{{postgresql_env}}"
   with_items:
-    - "postgresql-{{postgresql_version}}"
-    - "postgresql-client-{{postgresql_version}}"
-    - "postgresql-contrib-{{postgresql_version}}"
+    - "{{ postgres_packages }}"
 
 - name: PostgreSQL | PGTune
   apt:

tasks/install_yum.yml

@@ -1,5 +1,19 @@
 # file: postgresql/tasks/install_yum.yml
 
+- name: Define packages to be installed
+  set_fact:
+    postgres_packages:
+      - "postgresql{{ postgresql_version_terse }}-server"
+      - "postgresql{{ postgresql_version_terse }}"
+      - "postgresql{{ postgresql_version_terse }}-contrib"
+  when: not postgresql_docker_mode
+
+- name: Define packages to be installed (docker mode)
+  set_fact:
+    postgres_packages:
+      - "postgresql{{ postgresql_version_terse }}"
+  when: postgresql_docker_mode
+
 # The standard ca-certs are needed because  without them apt_key will fail to
 # validate www.postgresql.org (or probably any other source).
 - name: PostgreSQL | Make sure the CA certificates are available
@@ -25,9 +39,7 @@
     state: present
   environment: "{{ postgresql_env }}"
   with_items:
-    - "postgresql{{ postgresql_version_terse }}-server"
-    - "postgresql{{ postgresql_version_terse }}"
-    - "postgresql{{ postgresql_version_terse }}-contrib"
+    - "{{ postgres_packages }}"
 
 - name: PostgreSQL | PGTune
   yum:

tasks/main.yml

@@ -15,20 +15,41 @@
   tags: [postgresql, postgresql-install]
 
 - include: extensions.yml
+  when: not postgresql_docker_mode
   tags: [postgresql, postgresql-extensions]
 
 - include: configure.yml
+  when: not postgresql_docker_mode
+  tags: [postgresql, postgresql-configure]
+
+- include: configure-docker.yml
+  when: postgresql_docker_mode
   tags: [postgresql, postgresql-configure]
 
 - include: users.yml
+  when: not postgresql_docker_mode
+  tags: [postgresql, postgresql-users]
+
+- include: users-docker.yml
+  when: postgresql_docker_mode
   tags: [postgresql, postgresql-users]
 
 - include: databases.yml
+  when: not postgresql_docker_mode
+  tags: [postgresql, postgresql-databases]
+
+- include: databases-docker.yml
+  when: postgresql_docker_mode
   tags: [postgresql, postgresql-databases]
 
 - include: users_privileges.yml
+  when: not postgresql_docker_mode
+  tags: [postgresql, postgresql-users]
+
+- include: users_privileges-docker.yml
+  when: postgresql_docker_mode
   tags: [postgresql, postgresql-users]
 
 - include: monit.yml
-  when: monit_protection is defined and monit_protection == true
+  when: monit_protection is defined and monit_protection == true  and not postgresql_docker_mode
   tags: [postgresql, postgresql-monit]

tasks/users-docker.yml

@@ -0,0 +1,14 @@
+# file: postgresql/tasks/users-docker.yml
+
+- name: PostgreSQL | Make sure the PostgreSQL users are present
+  postgresql_user:
+    name: "{{item.name}}"
+    password: "{{ item.pass | default(omit) }}"
+    encrypted: "{{ item.encrypted | default(omit) }}"
+    port: "{{postgresql_login_port}}"
+    state: present
+    login_user: "{{postgresql_admin_user}}"
+    login_password: "{{postgresql_admin_pwd}}"
+    login_host: "{{postgresql_login_host}}"
+  with_items: "{{postgresql_users}}"
+  when: postgresql_docker_mode and postgresql_users|length > 0

tasks/users_privileges-docker.yml

@@ -0,0 +1,15 @@
+# file: postgresql/tasks/users_privileges.yml
+
+- name: PostgreSQL | Update the user privileges
+  postgresql_user:
+    name: "{{item.name}}"
+    db: "{{item.db | default(omit)}}"
+    port: "{{postgresql_login_port}}"
+    priv: "{{item.priv | default(omit)}}"
+    state: present
+    role_attr_flags: "{{item.role_attr_flags | default(omit)}}"
+    login_user: "{{postgresql_admin_user}}"
+    login_host: "{{postgresql_login_host}}"
+    login_password: "{{postgresql_admin_pwd}}"
+  with_items: "{{postgresql_user_privileges}}"
+  when: postgresql_users|length > 0