matrix-docker-ansible-deploy/roles/matrix-postgres/tasks/setup_postgres.yml

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---
#
# Tasks related to setting up an internal postgres server
#
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- import_tasks: "{{ role_path }}/tasks/migrate_postgres_data_directory.yml"
when: matrix_postgres_enabled|bool
- import_tasks: "{{ role_path }}/tasks/util/detect_existing_postgres_version.yml"
when: matrix_postgres_enabled|bool
# If we have found an existing version (installed from before), we use its corresponding Docker image.
# If not, we install using the latest Postgres.
#
# Upgrading is supposed to be performed separately and explicitly (see `upgrade_postgres.yml`).
- set_fact:
matrix_postgres_docker_image_to_use: "{{ matrix_postgres_docker_image_latest if matrix_postgres_detected_version_corresponding_docker_image == '' else matrix_postgres_detected_version_corresponding_docker_image }}"
when: matrix_postgres_enabled|bool
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- name: Inject warning if on an old version of Postgres
set_fact:
matrix_playbook_runtime_results: |
{{
matrix_playbook_runtime_results|default([])
+
[
"NOTE: Your setup is on an old Postgres version ({{ matrix_postgres_docker_image_to_use }}), while {{ matrix_postgres_docker_image_latest }} is supported. You can upgrade using --tags=upgrade-postgres"
]
}}
when: "matrix_postgres_enabled|bool and matrix_postgres_docker_image_to_use != matrix_postgres_docker_image_latest"
# Even if we don't run the internal server, we still need this for running the CLI
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- name: Ensure postgres Docker image is pulled
docker_image:
name: "{{ matrix_postgres_docker_image_to_use }}"
source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
force_source: "{{ matrix_postgres_docker_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_postgres_docker_image_force_pull }}"
when: matrix_postgres_enabled|bool
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- name: Ensure Postgres paths exist
file:
path: "{{ item }}"
state: directory
mode: 0700
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_groupname }}"
with_items:
- "{{ matrix_postgres_base_path }}"
- "{{ matrix_postgres_data_path }}"
when: matrix_postgres_enabled|bool
# We do this as a separate task, because:
# - we'd like to do it for the data path only, not for the base path (which contains root-owned environment variable files we'd like to leave as-is)
# - we need to do it without `mode`, or we risk making certain `.conf` and other files's executable bit to flip to true
- name: Ensure Postgres data path ownership is correct
file:
path: "{{ matrix_postgres_data_path }}"
state: directory
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_groupname }}"
recurse: yes
when: matrix_postgres_enabled|bool
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- name: Ensure Postgres environment variables file created
template:
src: "{{ role_path }}/templates/{{ item }}.j2"
dest: "{{ matrix_postgres_base_path }}/{{ item }}"
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mode: 0640
with_items:
- "env-postgres-psql"
- "env-postgres-server"
when: matrix_postgres_enabled|bool
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- name: Ensure matrix-postgres-cli script created
template:
src: "{{ role_path }}/templates/usr-local-bin/matrix-postgres-cli.j2"
dest: "{{ matrix_local_bin_path }}/matrix-postgres-cli"
mode: 0755
when: matrix_postgres_enabled|bool
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- name: Ensure matrix-change-user-admin-status script created
template:
src: "{{ role_path }}/templates/usr-local-bin/matrix-change-user-admin-status.j2"
dest: "{{ matrix_local_bin_path }}/matrix-change-user-admin-status"
mode: 0755
when: matrix_postgres_enabled|bool
- name: (Migration) Ensure old matrix-make-user-admin script deleted
file:
path: "{{ matrix_local_bin_path }}/matrix-make-user-admin"
state: absent
when: matrix_postgres_enabled|bool
- name: Ensure matrix-postgres-update-user-password-hash script created
template:
src: "{{ role_path }}/templates/usr-local-bin/matrix-postgres-update-user-password-hash.j2"
dest: "{{ matrix_local_bin_path }}/matrix-postgres-update-user-password-hash"
mode: 0755
when: matrix_postgres_enabled|bool
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- name: Ensure matrix-postgres.service installed
template:
src: "{{ role_path }}/templates/systemd/matrix-postgres.service.j2"
dest: "{{ matrix_systemd_path }}/matrix-postgres.service"
mode: 0644
register: matrix_postgres_systemd_service_result
when: matrix_postgres_enabled|bool
- name: Ensure systemd reloaded after matrix-postgres.service installation
service:
daemon_reload: yes
when: "matrix_postgres_enabled|bool and matrix_postgres_systemd_service_result.changed"
- include_tasks:
file: "{{ role_path }}/tasks/util/create_additional_databases.yml"
apply:
tags:
- always
when: "matrix_postgres_enabled|bool and matrix_postgres_additional_databases|length > 0"
- name: Check existence of matrix-postgres backup data path
stat:
path: "{{ matrix_postgres_data_path }}-auto-upgrade-backup"
register: matrix_postgres_data_backup_path_stat
when: "matrix_postgres_enabled|bool"
- name: Inject warning if backup data remains
set_fact:
matrix_playbook_runtime_results: |
{{
matrix_playbook_runtime_results|default([])
+
[
"NOTE: You have some Postgres backup data in `{{ matrix_postgres_data_path }}-auto-upgrade-backup`, which was created during the last major Postgres update you ran. If your setup works well after this upgrade, feel free to delete this whole directory."
]
}}
when: "matrix_postgres_enabled|bool and matrix_postgres_data_backup_path_stat.stat.exists"
#
# Tasks related to getting rid of the internal postgres server (if it was previously enabled)
#
- name: Check existence of matrix-postgres service
stat:
path: "{{ matrix_systemd_path }}/matrix-postgres.service"
register: matrix_postgres_service_stat
when: "not matrix_postgres_enabled|bool"
- name: Ensure matrix-postgres is stopped
service:
name: matrix-postgres
state: stopped
daemon_reload: yes
when: "not matrix_postgres_enabled|bool and matrix_postgres_service_stat.stat.exists"
- name: Ensure matrix-postgres.service doesn't exist
file:
path: "{{ matrix_systemd_path }}/matrix-postgres.service"
state: absent
when: "not matrix_postgres_enabled|bool and matrix_postgres_service_stat.stat.exists"
- name: Ensure systemd reloaded after matrix-postgres.service removal
service:
daemon_reload: yes
when: "not matrix_postgres_enabled|bool and matrix_postgres_service_stat.stat.exists"
- name: Check existence of matrix-postgres local data path
stat:
path: "{{ matrix_postgres_data_path }}"
register: matrix_postgres_data_path_stat
when: "not matrix_postgres_enabled|bool"
# We just want to notify the user. Deleting data is too destructive.
- name: Inject warning if matrix-postgres local data remains
set_fact:
matrix_playbook_runtime_results: |
{{
matrix_playbook_runtime_results|default([])
+
[
"NOTE: You are not using a local PostgreSQL database, but some old data remains from before in `{{ matrix_postgres_data_path }}`. Feel free to delete it."
]
}}
when: "not matrix_postgres_enabled|bool and matrix_postgres_data_path_stat.stat.exists"
- name: Remove Postgres scripts
file:
path: "{{ matrix_local_bin_path }}/{{ item }}"
state: absent
with_items:
- matrix-postgres-cli
- matrix-change-user-admin-status
- matrix-postgres-update-user-password-hash
when: "not matrix_postgres_enabled|bool"