matrix-docker-ansible-deploy/roles/matrix-server/tasks/setup_postgres.yml
Slavi Pantaleev cbee084ac1 Use Postgres 10.x by default (only for new installs)
This playbook just tries to avoid trying to setup a Postgres 10
database with existing 9.x files, as that makes Postgres complain.

Due to this, existing installs (still on 9.x) are detected
and left on Postgres 9.x.
They need to be upgraded to Postgres 10.x manually.
2018-05-28 20:16:02 +03:00

105 lines
3.5 KiB
YAML

---
#
# Generic tasks, no matter what kind of server we're using (internal/external)
#
- name: Determine existing Postgres version (check PG_VERSION file)
stat:
path: "{{ matrix_postgres_data_path }}/PG_VERSION"
register: result_pg_version_stat
- name: Determine existing Postgres version (read PG_VERSION file)
slurp:
src: "{{ matrix_postgres_data_path }}/PG_VERSION"
register: result_pg_version
when: "result_pg_version_stat.stat.exists"
- name: Determine existing Postgres version (default to empty)
set_fact:
pg_version: ""
- name: Determine existing Postgres version (make sense of PG_VERSION file)
set_fact:
pg_version: "{{ result_pg_version['content']|b64decode|replace('\n', '') }}"
when: "result_pg_version_stat.stat.exists"
- name: Determine Postgres version to use (default to latest)
set_fact:
docker_postgres_image_to_use: "{{ docker_postgres_image_latest }}"
- name: Determine Postgres version to use (use 9.x, if detected)
set_fact:
docker_postgres_image_to_use: "{{ docker_postgres_image_v9 }}"
when: "pg_version.startswith('9.')"
# Even if we don't run the internal server, we still need this for running the CLI
- name: Ensure postgres Docker image is pulled
docker_image:
name: "{{ docker_postgres_image_to_use }}"
- name: Ensure Postgres environment variables file created
template:
src: "{{ role_path }}/templates/env/{{ item }}.j2"
dest: "{{ matrix_environment_variables_data_path }}/{{ item }}"
mode: 0640
with_items:
- "env-postgres-pgsql-docker"
- "env-postgres-server-docker"
- name: Ensure matrix-postgres-cli script created
template:
src: "{{ role_path }}/templates/usr-local-bin/matrix-postgres-cli.j2"
dest: "/usr/local/bin/matrix-postgres-cli"
mode: 0750
#
# Tasks related to setting up an internal postgres server
#
- name: Ensure postgres data path exists
file:
path: "{{ matrix_postgres_data_path }}"
state: directory
mode: 0700
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_username }}"
when: "not matrix_postgres_use_external"
- name: Ensure matrix-postgres.service installed
template:
src: "{{ role_path }}/templates/systemd/matrix-postgres.service.j2"
dest: "/etc/systemd/system/matrix-postgres.service"
mode: 0644
when: "not matrix_postgres_use_external"
#
# Tasks related to getting rid of the internal postgres server (if it was previously enabled)
#
- name: Check existence of matrix-postgres service
stat: path="/etc/systemd/system/matrix-postgres.service"
register: matrix_postgres_service_stat
when: matrix_postgres_use_external
- name: Ensure matrix-postgres is stopped
service: name=matrix-postgres state=stopped daemon_reload=yes
when: "matrix_postgres_use_external and matrix_postgres_service_stat.stat.exists"
- name: Ensure matrix-postgres.service doesn't exist
file:
path: "/etc/systemd/system/matrix-postgres.service"
state: absent
when: "matrix_postgres_use_external 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: matrix_postgres_use_external
# We just want to notify the user. Deleting data is too destructive.
- name: Notify if matrix-postgres local data remains
debug:
msg: "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 that."
when: "matrix_postgres_use_external and matrix_postgres_data_path_stat.stat.exists"