Relocate some playbook task files to make it easier to navigate

roles/matrix-server/tasks/setup/setup_postgres.yml

@@ -0,0 +1,108 @@
+---
+
+#
+# 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:
+    matrix_docker_image_postgres_to_use: "{{ matrix_docker_image_postgres_latest }}"
+
+- name: Determine Postgres version to use (use 9.x, if detected)
+  set_fact:
+    matrix_docker_image_postgres_to_use: "{{ matrix_docker_image_postgres_v9 }}"
+  when: "pg_version.startswith('9.')"
+
+- debug:
+    msg: "NOTE: Your setup is on an old Postgres version ({{ matrix_docker_image_postgres_to_use }}), while {{ matrix_docker_image_postgres_latest }} is supported. You can upgrade using --tags=upgrade-postgres"
+  when: "matrix_docker_image_postgres_to_use != matrix_docker_image_postgres_latest"
+
+# 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: "{{ matrix_docker_image_postgres_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"