48 lines
2.0 KiB
Markdown
48 lines
2.0 KiB
Markdown
# `finallycoffee.databases.redis` ansible role
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Redis is the self-proclaimed world's fastest data platform for caching,
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vector search and NoSQL databases. Since version 7.2.4, it is no longer
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considered "Free and open source software" (FOSS), with redis switching
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their license to the "Serverside public license" (SSPL).
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Setting the `redis_version` to higher than `7.2.4` means you will deploy
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the SSPL-licensed version to redis.
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## Configuration
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All container-related options to the `docker_container` ansible module
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are available under the `redis_container_*` namespace, for example use
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`redis_container_ports: [ '127.0.0.1:6379:6370/tcp' ]` to map the
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containers port 6379 to the docker host.
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Redis-related config options are either available in the `redis_config_*`
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namespace or can be specified by setting them as a dictionary in
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`redis_config`
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### Authentication and authorization
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Redis ACL can be specified as an array in the `redis_config_user` variable
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- see [the redis documentation](https://github.com/redis/redis/blob/unstable/redis.conf#L869)
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for the format. Per default, the `default` user is able to connect without
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any password. To require a password and use a different user, override
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the variable, for example `redis_config_user: [ 'username on +@all -DEBUG ~* >secret' ]`.
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## Redis on a unix socket
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To make redis available on a unix socket, a directory must be supplied in which the
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socket lives:
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```yaml
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redis_container_socket: /var/run/redis.sock
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redis_container_volumes:
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- "/path/to/socket/on/host/redis.sock:{{ redis_container_socket }}:z"
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redis_config_unixsocket: "{{ redis_container_socket }}"
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```
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## Container specific information
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Redis publishes their official container image in both a debian-based and an
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alpine-based variant. Which image should be used can be configured in
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`redis_container_image_flavour`, which defaults to `alpine`, which is smaller
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in size but also includes less related / debugging tools. To use the debian-
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based image, unset the flavour using `redis_container_image_flavour: ~`.
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