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65 lines
3.4 KiB
65 lines
3.4 KiB
---
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# This utility aims to determine if there is some existing Postgres version in use or not.
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# If there is, it also tries to detect the Docker image that corresponds to that version.
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#
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# This utility is intentionally not in `tasks/util`, because if it were, it wouldn't be possible
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# to include it in other roles via the import_role module: https://docs.ansible.com/ansible/latest/collections/ansible/builtin/import_role_module.html
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- name: Initialize Postgres version determination variables (default to empty)
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ansible.builtin.set_fact:
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matrix_postgres_detection_pg_version_path: "{{ matrix_postgres_data_path }}/PG_VERSION"
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matrix_postgres_detected_existing: false
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matrix_postgres_detected_version: ""
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matrix_postgres_detected_version_corresponding_docker_image: ""
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- name: Determine existing Postgres version (check PG_VERSION file)
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ansible.builtin.stat:
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path: "{{ matrix_postgres_detection_pg_version_path }}"
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register: result_pg_version_stat
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- ansible.builtin.set_fact:
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matrix_postgres_detected_existing: true
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when: "result_pg_version_stat.stat.exists"
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- name: Determine existing Postgres version (read PG_VERSION file)
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ansible.builtin.slurp:
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src: "{{ matrix_postgres_detection_pg_version_path }}"
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register: result_pg_version
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when: matrix_postgres_detected_existing | bool
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- name: Determine existing Postgres version (make sense of PG_VERSION file)
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ansible.builtin.set_fact:
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matrix_postgres_detected_version: "{{ result_pg_version['content'] | b64decode | replace('\n', '') }}"
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when: matrix_postgres_detected_existing | bool
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- name: Determine corresponding Docker image to detected version (assume default of latest)
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ansible.builtin.set_fact:
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matrix_postgres_detected_version_corresponding_docker_image: "{{ matrix_postgres_docker_image_latest }}"
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when: "matrix_postgres_detected_version != ''"
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- name: Determine corresponding Docker image to detected version (use 9.x, if detected)
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ansible.builtin.set_fact:
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matrix_postgres_detected_version_corresponding_docker_image: "{{ matrix_postgres_docker_image_v9 }}"
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when: "matrix_postgres_detected_version.startswith('9.')"
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- name: Determine corresponding Docker image to detected version (use 10.x, if detected)
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ansible.builtin.set_fact:
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matrix_postgres_detected_version_corresponding_docker_image: "{{ matrix_postgres_docker_image_v10 }}"
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when: "matrix_postgres_detected_version == '10' or matrix_postgres_detected_version.startswith('10.')"
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- name: Determine corresponding Docker image to detected version (use 11.x, if detected)
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ansible.builtin.set_fact:
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matrix_postgres_detected_version_corresponding_docker_image: "{{ matrix_postgres_docker_image_v11 }}"
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when: "matrix_postgres_detected_version == '11' or matrix_postgres_detected_version.startswith('11.')"
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- name: Determine corresponding Docker image to detected version (use 12.x, if detected)
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ansible.builtin.set_fact:
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matrix_postgres_detected_version_corresponding_docker_image: "{{ matrix_postgres_docker_image_v12 }}"
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when: "matrix_postgres_detected_version == '12' or matrix_postgres_detected_version.startswith('12.')"
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- name: Determine corresponding Docker image to detected version (use 13.x, if detected)
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ansible.builtin.set_fact:
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matrix_postgres_detected_version_corresponding_docker_image: "{{ matrix_postgres_docker_image_v13 }}"
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when: "matrix_postgres_detected_version == '13' or matrix_postgres_detected_version.startswith('13.')"
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