README.md

@@ -5,6 +5,10 @@
 This ansible collection provides various roles for installing
 and configuring basic system utilities like gnupg, ssh etc
 
+- [`elasticsearch`](roles/elasticsearch/README.md): Deploy [elasticsearch](https://www.docker.elastic.co/r/elasticsearch/elasticsearch-oss),
+  a popular (distributed) search and analytics engine, mostly known by it's
+  letter "E" in the ELK-stack.
+
 - [`git`](roles/git/README.md): configures git on the target system
 
 - [`gnupg`](roles/gnupg/README.md): configures gnupg on the target system
@@ -12,6 +16,8 @@ and configuring basic system utilities like gnupg, ssh etc
 - [`lego`](roles/lego/README.md): runs [lego (LetsEncrypt Go)](https://github.com/go-acme/lego),
   a ACME client written in go, using systemd (timers). Multi-instance capable.
 
+- [`mariadb`](roles/mariadb/README.md): runs [MariaDB Server](https://mariadb.org/), one of the world's most popular open source relational database
+
 - [`minio`](roles/minio/README.md): Deploy [min.io](https://min.io), an
   s3-compatible object storage server, using docker containers.
 

galaxy.yml

@@ -1,6 +1,6 @@
 namespace: finallycoffee
 name: base
-version: 0.2.0
+version: 0.1.2
 readme: README.md
 authors:
 - transcaffeine <transcaffeine@finally.coffee>
@@ -14,7 +14,9 @@ repository: https://git.finally.coffee/finallycoffee/base
 issues: https://codeberg.org/finallycoffee/ansible-collection-base/issues
 tags:
   - docker
+  - elastic
   - lego
+  - mariadb
   - minio
   - nginx
   - restic

roles/elasticsearch/README.md

@@ -0,0 +1,22 @@
+# `finallycoffee.base.elastiscsearch`
+
+A simple ansible role which deploys a single-node elastic container to provide
+an easy way to do some indexing.
+
+## Usage
+
+Per default, `/opt/elasticsearch/data` is used to persist data, it is
+customizable by using either `elasticsearch_base_path` or `elasticsearch_data_path`.
+
+As elasticsearch be can be quite memory heavy, the maximum amount of allowed RAM
+can be configured using `elasticsearch_allocated_ram_mb`, defaulting to 512 (mb).
+
+The cluster name and discovery type can be overridden using
+`elasticsearch_config_cluster_name` (default: elastic) and
+`elasticsearch_config_discovery_type` (default: single-node), should one
+need a multi-node elasticsearch deployment.
+
+Per default, no ports or networks are mapped, and explizit mapping using
+either ports (`elasticsearch_container_ports`) or networks
+(`elasticsearch_container_networks`) is required in order for other services
+to use elastic.

roles/elasticsearch/defaults/main.yml

@@ -0,0 +1,35 @@
+---
+
+elasticsearch_version: 7.17.7
+
+elasticsearch_base_path: /opt/elasticsearch
+elasticsearch_data_path: "{{ elasticsearch_base_path }}/data"
+
+elasticsearch_config_cluster_name: elastic
+elasticsearch_config_discovery_type: single-node
+elasticsearch_config_boostrap_memory_lock: true
+elasticsearch_allocated_ram_mb: 512
+
+elasticsearch_container_image_name: docker.elastic.co/elasticsearch/elasticsearch-oss
+elasticsearch_container_image_tag: ~
+elasticsearch_container_image: >-
+  {{ elasticsearch_container_image_name }}:{{ elasticsearch_container_image_tag | default(elasticsearch_version, true) }}
+
+elasticsearch_container_name: elasticsearch
+elasticsearch_container_env:
+  "ES_JAVA_OPTS": "-Xms{{ elasticsearch_allocated_ram_mb }}m -Xmx{{ elasticsearch_allocated_ram_mb }}m"
+  "cluster.name": "{{ elasticsearch_config_cluster_name }}"
+  "discovery.type": "{{ elasticsearch_config_discovery_type }}"
+  "bootstrap.memory_lock": "{{ 'true' if elasticsearch_config_boostrap_memory_lock else 'false' }}"
+elasticsearch_container_user: ~
+elasticsearch_container_ports: ~
+elasticsearch_container_labels:
+  version: "{{ elasticsearch_version }}"
+elasticsearch_container_ulimits:
+#  - "memlock:{{ (1.5 * 1024 * elasticsearch_allocated_ram_mb) | int }}:{{ (1.5 * 1024 * elasticsearch_allocated_ram_mb) | int }}"
+  - "memlock:-1:-1"
+elasticsearch_container_volumes:
+  - "{{ elasticsearch_data_path }}:/usr/share/elasticsearch/data:z"
+elasticsearch_container_networks: ~
+elasticsearch_container_purge_networks: ~
+elasticsearch_container_restart_policy: unless-stopped

roles/elasticsearch/tasks/main.yml

@@ -0,0 +1,32 @@
+---
+
+- name: Ensure host directories are present
+  file:
+    path: "{{ item }}"
+    state: directory
+    mode: "0777"
+  loop:
+    - "{{ elasticsearch_base_path }}"
+    - "{{ elasticsearch_data_path }}"
+
+- name: Ensure elastic container image is present
+  docker_image:
+    name: "{{ elasticsearch_container_image }}"
+    state: present
+    source: pull
+    force_source: "{{ elasticsearch_container_image_tag|default(false, true)|bool }}"
+
+- name: Ensure elastic container is running
+  docker_container:
+    name: "{{ elasticsearch_container_name }}"
+    image: "{{ elasticsearch_container_image }}"
+    env: "{{ elasticsearch_container_env | default(omit, True) }}"
+    user: "{{ elasticsearch_container_user | default(omit, True) }}"
+    ports: "{{ elasticsearch_container_ports | default(omit, True) }}"
+    labels: "{{ elasticsearch_container_labels | default(omit, True) }}"
+    volumes: "{{ elasticsearch_container_volumes }}"
+    ulimits: "{{ elasticsearch_container_ulimits }}"
+    networks: "{{ elasticsearch_container_networks | default(omit, True) }}"
+    purge_networks: "{{ elasticsearch_container_purge_networks | default(omit, True) }}"
+    restart_policy: "{{ elasticsearch_container_restart_policy }}"
+    state: started

roles/lego/defaults/main.yml

@@ -1,6 +1,6 @@
 ---
 lego_user: "lego"
-lego_version: "4.21.0"
+lego_version: "4.18.0"
 lego_instance: default
 lego_base_path: "/opt/lego"
 lego_cert_user: "acme-{{ lego_instance }}"

roles/mariadb/README.md

@@ -0,0 +1,19 @@
+# `finallycoffee.base.mariadb` ansible role
+
+This role deploys a MariaDB instance in a docker container.
+
+## Usage
+
+The role expects the following variables to be populated with values and/or secrets:
+
+```yaml
+mariadb_root_password: #mariadb root password
+mariadb_database: # name of the database to create
+mariadb_username: # name of a user to auto-create and assign permission on the mariadb_database
+mariadb_password: # password of the user in mariadb_username
+```
+
+## Requirements
+
+- Docker installed
+- python-docker present on target system for ansible to be able to talk with the docker API.

roles/mariadb/defaults/main.yml

@@ -0,0 +1,32 @@
+---
+
+mariadb_version: "10.11.9"
+mariadb_base_path: /var/lib/mariadb
+mariadb_data_path: "{{ mariadb_base_path }}/{{ mariadb_version }}"
+
+mariadb_root_password: ~
+mariadb_database: ~
+mariadb_username: ~
+mariadb_password: ~
+
+mariadb_container_base_environment:
+  MARIADB_ROOT_PASSWORD: "{{ mariadb_root_password }}"
+mariadb_container_extra_environment: {}
+
+mariadb_container_name: mariadb
+mariadb_container_image_name: docker.io/mariadb
+mariadb_container_image_tag: ~
+mariadb_container_image: "{{ mariadb_container_image_name }}:{{ mariadb_container_image_tag | default(mariadb_version, true) }}"
+mariadb_container_base_volumes:
+  - "{{ mariadb_data_path }}:{{ mariadb_container_data_path }}:z"
+mariadb_container_extra_volumes: []
+mariadb_container_base_labels:
+  version: "{{ mariadb_version }}"
+mariadb_container_extra_labels: {}
+mariadb_container_restart_policy: "unless-stopped"
+mariadb_container_environment: >-2
+  {{ mariadb_container_base_environment
+  | combine(mariadb_container_database_environment
+      if (mariadb_database and mariadb_username and mariadb_password)
+      else {}, recursive=True)
+  | combine(mariadb_container_extra_environment) }}

roles/mariadb/tasks/main.yml

@@ -0,0 +1,20 @@
+---
+- name: Ensure mariaDB container image is present on host
+  community.docker.docker_image:
+    name: "{{ mariadb_container_image }}"
+    state: present
+    source: pull
+
+- name: Ensure mariaDB {{ mariadb_version }} is running as '{{ mariadb_container_name }}'
+  community.docker.docker_container:
+    name: "{{ mariadb_container_name }}"
+    image: "{{ mariadb_container_image }}"
+    env: "{{ mariadb_container_environment }}"
+    ports: "{{ mariadb_container_ports }}"
+    labels: "{{ mariadb_container_labels }}"
+    volumes: "{{ mariadb_container_volumes }}"
+    networks: "{{ mariadb_container_networks | default(omit, true) }}"
+    etc_hosts: "{{ mariadb_container_etc_hosts | default(omit, true) }}"
+    purge_networks: "{{ mariadb_container_purge_networks | default(omit, true) }}"
+    restart_policy: "{{ mariadb_container_restart_policy }}"
+    state: started

roles/mariadb/vars/main.yml

@@ -0,0 +1,10 @@
+---
+
+mariadb_container_database_environment:
+  MARIADB_DATABASE: "{{ mariadb_database }}"
+  MARIADB_USER: "{{ mariadb_username }}"
+  MARIADB_PASSWORD: "{{ mariadb_password }}"
+
+mariadb_container_data_path: /var/lib/mysql
+mariadb_container_volumes: "{{ mariadb_container_base_volumes + mariadb_container_extra_volumes }}"
+mariadb_container_labels: "{{ mariadb_container_base_labels | combine(mariadb_container_extra_labels, recursive=True) }}"