feat(elasticsearch): add migrated role from finallycoffee.services

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transcaffeine 2023-07-28 15:18:08 +02:00
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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
- [`mariadb`](roles/mariadb/README.md): runs [MariaDB Server](https://mariadb.org/), one of the world's most popular open source relational database

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# `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.

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---
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

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---
- 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