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Using Redis for caching

Using Redis as caching instance for Kimai

Production

If you want to use Redis as caching instance, you have to change your local.yaml and add the following lines:

framework:
    cache:
        app: cache.adapter.redis
        system: cache.adapter.redis
        default_redis_provider: redis://:password@host
        pools:
            app.cache.redis:
                adapter: cache.adapter.redis
                public: false
                default_lifetime: 120
            doctrine.result_cache_pool:
                adapter: app.cache.redis
            doctrine.system_cache_pool:
                adapter: app.cache.redis

Change the connection URL in default_redis_provider to your Redis server.

Connection string for Redis

A Data Source Name (DSN) for this adapter must use the following format:

redis://[user:pass@][ip|host|socket[:port]][/db-index]

The user can be skipped if your Redis is password protected with requirepass (see example above).

Development

If you are using Kimai in dev environment, you have to add these additional configs as well:

doctrine:
    orm:
        metadata_cache_driver:
            type: service
            id: doctrine.system_cache_provider
        query_cache_driver:
            type: service
            id: doctrine.system_cache_provider
        result_cache_driver:
            type: service
            id: doctrine.result_cache_provider

services:
    doctrine.result_cache_provider:
        class: Symfony\Component\Cache\DoctrineProvider
        public: false
        arguments:
            - '@doctrine.result_cache_pool'
    doctrine.system_cache_provider:
        class: Symfony\Component\Cache\DoctrineProvider
        public: false
        arguments:
            - '@doctrine.system_cache_pool'

This is needed, because Doctrine cache is normally only active in prod (see config/packages/prod/doctrine.yaml).

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