feat(minio): add ansible role for deploying minio, a s3-compatible object storage server, with docker

roles/minio/README.md

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+# `finallycoffee.services.minio` ansible role
+
+## Overview
+
+This role deploys a [min.io](https://min.io) server (s3-compatible object storage server)
+using the official docker container image.
+
+## Configuration
+
+The role requires setting the password for the `root` user (name can be changed by
+setting `minio_root_username`) in `minio_root_password`. That user has full control
+over the minio-server instance.
+
+### Useful config hints
+
+Most configuration is done by setting environment variables in
+`minio_container_extra_env`, for example:
+
+```yaml
+minio_container_extra_env:
+  # disable the "console" web browser UI
+  MINIO_BROWSER: off
+  # enable public prometheus metrics on `/minio/v2/metrics/cluster`
+  MINIO_PROMETHEUS_AUTH_TYPE: public
+```
+
+When serving minio (or any s3-compatible server) on a "subfolder",
+see https://docs.aws.amazon.com/AmazonS3/latest/userguide/RESTRedirect.html
+and https://docs.aws.amazon.com/AmazonS3/latest/userguide/VirtualHosting.html

roles/minio/defaults/main.yml

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+---
+
+minio_user: ~
+minio_data_path: /opt/minio
+
+minio_create_user: false
+minio_manage_host_filesystem: false
+
+minio_root_username: root
+minio_root_password: ~
+
+minio_container_name: minio
+minio_container_image_name: quay.io/minio/minio
+minio_container_image_tag: latest
+minio_container_image: "{{ minio_container_image_name }}:{{ minio_container_image_tag }}"
+minio_container_networks: []
+minio_container_ports: []
+
+minio_container_base_volumes:
+  - "{{ minio_data_path }}:{{ minio_container_data_path }}:z"
+minio_container_extra_volumes: []
+
+minio_container_base_env:
+  MINIO_ROOT_USER: "{{ minio_root_username }}"
+  MINIO_ROOT_PASSWORD: "{{ minio_root_password }}"
+minio_container_extra_env: {}
+
+minio_container_labels: {}
+
+minio_container_command:
+  - "server"
+  - "{{ minio_container_data_path }}"
+  - "--console-address \":{{ minio_container_listen_port_console }}\""
+minio_container_restart_policy: "unless-stopped"
+minio_container_force_source: "{{ (minio_container_image_tag == 'latest')|bool }}"
+
+minio_container_listen_port_api: 9000
+minio_container_listen_port_console: 8900
+
+minio_container_data_path: /storage

roles/minio/tasks/main.yml

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+---
+
+- name: Ensure minio run user is present
+  user:
+    name: "{{ minio_user }}"
+    state: present
+    system: yes
+  when: minio_create_user
+
+- name: Ensure filesystem mounts ({{ minio_data_path }}) for container volumes are present
+  file:
+    path: "{{ minio_data_path }}"
+    state: directory
+    user: "{{ minio_user|default(omit, True) }}"
+    group: "{{ minio_user|default(omit, True) }}"
+  when: minio_manage_host_filesystem
+
+- name: Ensure container image for minio is present
+  community.docker.docker_image:
+    name: "{{ minio_container_image }}"
+    state: present
+    source: pull
+    force_source: "{{ minio_container_force_source }}"
+
+- name: Ensure container {{ minio_container_name }} is running
+  docker_container:
+    name: "{{ minio_container_name }}"
+    image: "{{ minio_container_image }}"
+    volumes: "{{ minio_container_volumes }}"
+    env: "{{ minio_container_env }}"
+    labels: "{{ minio_container_labels }}"
+    networks: "{{ minio_container_networks }}"
+    ports: "{{ minio_container_ports }}"
+    user: "{{ minio_user|default(omit, True) }}"
+    command: "{{ minio_container_command }}"
+    restart_policy: "{{ minio_container_restart_policy }}"
+    state: started
+    comparisons:
+      env: strict

roles/minio/vars/main.yml

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+---
+
+minio_container_volumes: "{{ minio_container_base_volumes + minio_container_extra_volumes }}"
+
+minio_container_env: "{{ minio_container_base_env | combine(minio_container_extra_env) }}"