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Red Hat Quay
3.14
Configure Red Hat Quay
9.10.3. ModelCache configuration fields

9.10.3. ModelCache configuration fields

ModelCache is a caching mechanism used by Red Hat Quay to store accessed data and reduce database load. Quay supports multiple backends for caching, including the default Memcache, as well as Redis and Redis Cluster.

Memcache (default): requires no additional configuration.
Redis: can be configured as a single instance or with a read-only replica.
Redis Cluster: provides high availability and sharding for larger deployments.

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표 9.40. ModelCache configuration fields
Field	Type	Description
DATA_MODEL_CACHE_CONFIG.engine	String	The cache backend engine. Values: `memcache`, `redis`, `rediscluster` Default: `memcache`
.redis_config.primary.host	String	The hostname of the primary Redis instance when using the `redis` engine.
.redis_config.primary.port	Number	The port used by the primary Redis instance.
.redis_config.primary.password	String	The password for authenticating with the primary Redis instance. Only required if `ssl` is set to `True`.
.redis_config.primary.ssl	Boolean	Whether to use SSL/TLS for the primary Redis connection.
.redis_config.startup_nodes	Array of Map	For `rediscluster` engine. The list of initial Redis cluster nodes with `host` and `port`.
redis_config.password	String	Password used for authentication with the Redis cluster. Required if `ssl` is `True`.
.redis_config.read_from_replicas	Boolean	Whether to allow read operations from Redis cluster replicas.
.redis_config.skip_full_coverage_check	Boolean	If set to true, skips the Redis cluster full coverage check.
.redis_config.ssl	Boolean	Whether to use SSL/TLS for Redis cluster communication.
.replica.host	String	The hostname of the Redis replica instance. Optional.
.replica.port	Number	The port used by the Redis replica instance.
.replica.password	String	The password for the Redis replica. Required if `ssl` is `True`.
.replica.ssl	Boolean	Whether to use SSL/TLS for the Redis replica connection.

Single Redis with optional replica example YAML

# ...
DATA_MODEL_CACHE_CONFIG:
  engine: redis
  redis_config:
    primary:
      host: <redis-primary.example.com>
      port: 6379
      password: <redis_password>>
      ssl: true
    replica:
      host: <redis-replica.example.com>
      port: 6379
      password: <redis_password>
      ssl: true
# ...

Clustered Redis example YAML

# ...
DATA_MODEL_CACHE_CONFIG:
  engine: <rediscluster>
  redis_config:
    startup_nodes:
      - host: <redis-node-1.example.com>
        port: 6379
      - host: <redis-node-2.example.com>
        port: 6379
    password: <cluster_password>
    read_from_replicas: true
    skip_full_coverage_check: true
    ssl: true
# ...

9.10.3. ModelCache configuration fields

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