# Copyright 2025 Chris Croome # # This file is part of the Webarchitects Valkey Ansible role. # # The Webarchitects Valkey Ansible role is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. # # The Webarchitects Valkey Ansible role is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along with the Webarchitects Valkey Ansible role. If not, see <https://www.gnu.org/licenses/>. --- argument_specs: main: author: Chris Croome description: Ansible role for installing and configuring nftables on Debian. short_description: The main entry point for the Valkey role. options: valkey: type: bool required: true description: Run the tasks in this role. valkey_apt_backports: type: str required: true description: String that will be present in the apt cache policy when backports are enabled. valkey_instances: type: list elements: dict required: true description: A list of Valkey instances and their configuration. options: name: type: str required: true description: The Valkey instance name. config_file: type: str required: true description: The path to the valkey instance configuration file. state: type: str required: true choices: - absent - enabled description: The state of the Valkey instance. config: type: dict required: false description: A dictionary of keys and values for the Valkey configuration. options: include: type: list elements: str description: Include one or more other config files. required: false loadmodule: type: list elements: str description: Load modules at startup. required: false bind: type: str required: false description: One or more IP addresses that the instance should bind to, each address can be prefixed by "-", which means that the server will not fail to start if the address is not available. bind_source_addr: type: str required: false description: Configure a specific address to bind to. protected_mode: type: bool required: false description: When protected mode is on and the default user has no password, the server only accepts local connections from the IPv4 address (127.0.0.1), IPv6 address (::1) or Unix domain sockets. tcp_backlog: type: int required: false description: In high requests-per-second environments you need a high backlog in order to avoid slow clients connection issues. enable_protected_configs: type: str choices: - "local" - "no" - "yes" required: false description: Enable protected configs. enable_debug_command: type: str choices: - "local" - "no" - "yes" required: false description: Enable debug command. enable_module_command: type: str choices: - "local" - "no" - "yes" required: false description: Enable module command. port: type: list elements: int required: true description: A list of port numbers to accept connections on, the default is 6379. If port 0 is specified the server will not listen on a TCP socket. unixsocket: type: str required: false description: The path for the Unix socket that will be used to listen for incoming connections. There is no default, so the server will not listen on a unix socket when not specified. unixsocketgroup: type: str required: false description: UNIX socket group. unixsocketperm: type: int required: false description: The Unix socket octal permissions, default 700. socket_mark_id: type: int required: false description: The ID represents a connection mark. The default value is 0, which implies no marking is required. tls_port: type: str required: false description: TLS port. tls_cert_file: type: str required: false description: TLS cert file. tls_key_file: type: str required: false description: TLS key file. tls_key_file_pass: type: str required: false description: TLS key file password. tls_client_cert_file: type: str required: false description: TLS client cert file. tls_client_key_file: type: str required: false description: TLS client key file. tls_client_key_file_pass: type: str required: false description: TLS client key file password. tls_dh_params_file: type: str required: false description: TLS DH params file. tls_ca_cert_file: type: str required: false description: TLS CA cert file. tls_ca_cert_dir: type: str required: false description: TLS CA cert dirextory. tls_auth_clients: type: str choices: - "no" - "optional" required: false description: TLS auth clients. tls_replication: type: bool required: false description: TLS replications. tls_cluster: type: bool required: false description: TLS cluster. tls_protocols: type: str required: false description: TLS protocols. tls_ciphers: type: str required: false description: TLS ciphers. tls_ciphersuites: type: str required: false description: TLS cipher suites. tls_prefer_server_ciphers: type: bool required: false description: TLS prefer server ciphers. tls_session_caching: type: bool required: false description: TLS session caching. tls_session_cache_size: type: int required: false description: TLS session cache size. tls_session_cache_timeout: type: int required: false description: TLS session cache timeout. timeout: type: int required: false description: Close the connection after a client is idle for N seconds (0 to disable). tcp_keepalive: type: int required: false description: On Linux, the specified value (in seconds) is the period used to send ACKs. daemonize: type: bool required: false description: When the server is supervised by upstart or systemd, this parameter has no impact. dbfilename: type: str required: false description: The filename where to dump the DB. loglevel: type: str choices: - debug - nothing - notice - verbose - warning required: false description: The loglevel. logfile: type: str required: false description: The log file path. syslog_enabled: type: bool required: false description: Enable logging to the system logger. syslog_ident: type: str required: false description: The syslog identity. syslog_facility: type: str choices: - user - local0 - local1 - local2 - local3 - local4 - local5 - local6 - local7 crash_log_enabled: type: bool required: false description: Disable the built in crash log. crash_memcheck_enabled: type: bool required: false description: Disable the fast memory check that's run as part of the crash log. databases: type: int required: false description: Set the number of databases. always_show_logo: type: bool required: false description: Show a ASCII art logo in startup logs. hide_user_data_from_log: type: bool required: false description: Prevent sensitive user information, such as PII, from being recorded in the server log file. set_proc_title: type: bool required: false description: Leave the process name as executed. proc_title_template: type: str required: false description: Process title template. locale_collate: type: str required: false description: Set the local environment which is used for string comparison operations. Empty String indicates the locale is derived from the environment variables. extended_redis_compatibility: type: bool required: false description: Extended Redis OSS compatibility mode makes Valkey pretend to be Redis. save: type: str required: false description: Save the DB to disk. stop_writes_on_bgsave_error: type: bool required: false description: By default the server will stop accepting writes if RDB snapshots are enabled (at least one save point) and the latest background save failed. rdbcompression: type: bool required: false description: Compress string objects using LZF when dump .rdb databases? rdbchecksum: type: bool required: false description: Since version 5 of RDB a CRC64 checksum is placed at the end of the file. sanitize_dump_payload: type: str choices: - "clients" - "no" - "yes" required: false description: Enables or disables full sanitization checks for ziplist and listpack etc. rdb_del_sync_files: type: bool required: false description: Remove RDB files used by replication in instances without persistence enabled. dir: type: str required: false description: The DB will be written inside this directory, with the filename specified using the 'dbfilename' configuration directive. replicaof: type: str required: false description: Use replicaof to make a server a copy of another server. primaryauth: type: str required: false description: If the primary is password protected (using the "requirepass" configuration directive) it is possible to tell the replica to authenticate before starting the replication synchronization process, otherwise the primary will refuse the replica request. primaryuser: type: str required: false description: When primaryuser is specified, the replica will authenticate against its primary using the new AUTH form, AUTH <username> <password>. replica_serve_stale_data: type: bool required: false description: When a replica loses its connection with the primary, or when the replication is still in progress, the replica can act in two different ways. replica_read_only: type: bool required: false description: Read only replicas are not designed to be exposed to untrusted clients on the internet. repl_diskless_sync: type: bool required: false description: With slow disks and fast (large bandwidth) networks, diskless replication works better. repl_diskless_load: type: str choices: - disabled - on-empty-db - swapdb required: false description: Replica load mode. dual_channel_replication_enabled: type: bool required: false description: Dual channel replication sync. repl_ping_replica_period: type: int required: false description: Master send PINGs to its replicas in a predefined interval. repl_timeout: type: int required: false description: Replication timeout. repl_disable_tcp_nodelay: type: bool required: false description: Disable TCP_NODELAY on the replica socket after SYNC? repl_backlog_size: type: str required: false description: The replication backlog size. repl_backlog_ttl: type: int required: false description: The amount of seconds that need to elapse, starting from the time the last replica disconnected, for the backlog buffer to be freed. replica_priority: type: int required: false description: The replica priority is an integer number published by the server in the INFO output. propagation_error_behavior: type: str choices: - ignore - panic - panic-on-replicas required: false description: The propagation error behavior. replica_announced: type: bool required: false description: Exclude replica from Sentinel's announcements. min_replicas_to_write: type: int required: false description: By default min-replicas-to-write is set to 0 (feature disabled). min_replicas_max_lag: type: int required: false description: By default min-replicas-max-lag is set to 10. replica_announce_ip: type: str required: false description: IP address to be used by a replica for the "INFO replication" section and in the output of the "ROLE" command of a primary. replica_announce_port: type: int required: false description: Port to be used by a replica for the "INFO replication" section and in the output of the "ROLE" command of a primary. tracking_table_max_keys: type: int required: false description: If you set the value to 0, it means there are no limits, and the server will retain as many keys as needed in the invalidation table. user: type: list elements: str required: false description: A list of ACL users and rules. acllog_max_len: type: int required: false description: Maximum entry length of the ACL Log. aclfile: type: str required: false description: External ACL file. requirepass: type: str required: false description: The instance default password. acl_pubsub_default: type: str choices: - allchannels - resetchannels required: false description: Pub/Sub channels permission for new users. rename_command: type: list elements: str required: false description: Deprecated option to change the name of dangerous commands. maxclients: type: int required: false description: The max number of connected clients at the same time, By default this limit is set to 10000 clients, however if the server is not able to configure the process file limit to allow for the specified limit the max number of allowed clients is set to the current file limit minus 32 (as the server reserves a few file descriptors for internal uses). maxmemory: type: int required: false description: Memory usage limit in bytes. maxmemory_policy: type: str choices: - allkeys-lfu - allkeys-lru - allkeys-random - noeviction - volatile-lfu - volatile-lru - volatile-random - volatile-ttl required: false description: How the server will select what to remove when maxmemory is reached, the default is noeviction. maxmemory_samples: type: int choices: - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46 - 47 - 48 - 49 - 50 - 51 - 52 - 53 - 54 - 55 - 56 - 57 - 58 - 59 - 60 - 61 - 62 - 63 - 64 required: false description: The default of 5 produces good enough results. 10 Approximates very closely true LRU but costs more CPU. 3 is faster but not very accurate. The maximum value that can be set is 64. maxmemory_eviction_tenacity: type: int choices: - 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46 - 47 - 48 - 49 - 50 - 51 - 52 - 53 - 54 - 55 - 56 - 57 - 58 - 59 - 60 - 61 - 62 - 63 - 64 - 65 - 66 - 67 - 68 - 69 - 70 - 71 - 72 - 73 - 74 - 75 - 76 - 77 - 78 - 79 - 80 - 81 - 82 - 83 - 84 - 85 - 86 - 87 - 88 - 89 - 90 - 91 - 92 - 93 - 94 - 95 - 96 - 97 - 98 - 99 - 100 required: false description: Default 10, If there is an unusually large amount of write traffic, this value may need to be increased. replica_ignore_maxmemory: type: bool required: false description: By default a replica will ignore its maxmemory setting. active_expire_effort: type: int choices: - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 required: false description: It is possible to increase the expire effort that is normally set to 1, to a greater value, up to the value 10. lazyfree_lazy_eviction: type: bool required: false description: Lazyfree lazy eviction, the default value is yes. lazyfree_lazy_expire: type: bool required: false description: Lazyfree lazy expire, the default value is yes. lazyfree_lazy_server_del: type: bool required: false description: Lazyfree lazy server delete, the default value is yes. replica_lazy_flush: type: bool required: false description: Lazyfree lazy flush, the default value is yes. lazyfree_lazy_user_del: type: bool required: false description: Lazyfree lazy user delete, the default value is yes. lazyfree_lazy_user_flush: type: bool required: false description: Lazyfree lazy user flush, the default value is yes. io_threads: type: int required: false description: By default threading is disabled, enable only on machines that have at least 3 or more cores, leaving at least one spare core. prefetch_batch_max_size: type: int required: false description: The default batch size is 16, when set to 0, prefetching is disabled. oom_score_adj: type: str choices: - "no" - "yes" - absolute - relative required: false description: The default is no, yes is the same as relative, with absolute oom-score-adj-values are written as is to the kernel. oom_score_adj_values: type: str required: false description: When oom-score-adj is used, this controls the specific values used for primary, replica and background child processes. disable_thp: type: bool required: false description: Usually the kernel Transparent Huge Pages control is set to madvise or or never by default, if you prefer to keep it enabled, you can set this config to no and the kernel global to always. appendonly: type: bool required: false description: The Append Only File is an alternative persistence mode that provides much better durability. Note that changing this value in a config file of an existing database and restarting the server can lead to data loss. appendfilename: type: str required: false description: The base name of the append only file. The default is appendonly.aof. appenddirname: type: str required: false description: The name of the directory for all persistent append-only files. Default appendonlydir. appendfsync: type: str choices: - always - everysec - "no" description: The fsync() call tells the Operating System to actually write data on disk instead of waiting for more data in the output buffer. The default is everysec. no_appendfsync_on_rewrite: type: bool required: false description: When the AOF fsync policy is set to always or everysec, and a background saving process (a background save or AOF log background rewriting) is performing a lot of I/O against the disk, in some Linux configurations the server may block too long on the fsync() call. The default is no. auto_aof_rewrite_percentage: type: int choices: - 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46 - 47 - 48 - 49 - 50 - 51 - 52 - 53 - 54 - 55 - 56 - 57 - 58 - 59 - 60 - 61 - 62 - 63 - 64 - 65 - 66 - 67 - 68 - 69 - 70 - 71 - 72 - 73 - 74 - 75 - 76 - 77 - 78 - 79 - 80 - 81 - 82 - 83 - 84 - 85 - 86 - 87 - 88 - 89 - 90 - 91 - 92 - 93 - 94 - 95 - 96 - 97 - 98 - 99 - 100 required: false description: The server is able to automatically rewrite the log file implicitly calling BGREWRITEAOF when the AOF log size grows by the specified percentage. Specify a percentage of zero in order to disable the automatic AOF rewrite feature. auto_aof_rewrite_min_size: type: str required: false description: A minimal size for the AOF file to be rewritten, this is useful to avoid rewriting the AOF file even if the percentage increase is reached but it is still pretty small. aof_load_truncated: type: bool required: false description: An AOF file may be found to be truncated at the end during the server startup process, either exit with an error when this happens, or load as much data as possible, The default is yes. aof_use_rdb_preamble: type: bool required: false description: The server can create append-only base files in either RDB or AOF formats. Using the RDB format is always faster and more efficient, the default is yes. aof_timestamp_enabled: type: bool required: false description: The server supports recording timestamp annotations in the AOF to support restoring the data from a specific point-in-time. However, using this capability changes the AOF format in a way that may not be compatible with existing AOF parsers. The default is no. shutdown_timeout: type: int required: false description: Maximum time to wait for replicas when shutting down, in seconds. shutdown_on_sigint: type: str required: false description: When the server receives a SIGINT shutdown is initiated. Options are Any combination of 'default', 'save', 'nosave', 'now' and 'force' as long as 'save' and 'nosave' are not set simultaneously. shutdown_on_sigterm: type: str required: false description: When the server receives a SIGTERM shutdown is initiated. Options are any combination of 'default', 'save', 'nosave', 'now' and 'force' as long as 'save' and 'nosave' are not set simultaneously. lua_time_limit: type: int required: false description: Maximum time in milliseconds for EVAL scripts, default 5000, set it to 0 to disable this mechanism (uninterrupted execution). busy_reply_threshold: type: int required: false description: Alias for lua-time-limit. cluster_enabled: type: bool required: false description: Normal server instances can't be part of a cluster; only nodes that are started as cluster nodes can. The default is false. cluster_config_file: type: str required: false description: Every cluster node has a cluster configuration file. Every cluster node requires a different cluster configuration file. Make sure that instances running in the same system do not have overlapping cluster configuration file names. cluster_node_timeout: type: int required: false description: Cluster node timeout is the amount of milliseconds a node must be unreachable for it to be considered in failure state. cluster_port: type: int required: false description: The cluster port is the port that the cluster bus will listen for inbound connections on. When set to the default value, 0, it will be bound to the command port + 10000. Setting this value requires you to specify the cluster bus port when executing cluster meet. cluster_replica_validity_factor: type: int required: false description: A replica of a failing primary will avoid to start a failover if its data looks too old. The default is 10. cluster_migration_barrier: type: int required: false description: Default is 1 (replicas migrate only if their primaries remain with at least one replica). To disable migration just set it to a very large value or set cluster-allow-replica-migration to 'no'. A value of 0 can be set but is useful only for debugging and dangerous in production. cluster_allow_replica_migration: type: bool required: false description: Turning off this option allows to use less automatic cluster configuration. Default is true (allow automatic migrations). cluster_require_full_coverage: type: bool required: false description: By default cluster nodes stop accepting queries if they detect there is at least a hash slot uncovered (no available node is serving it). The default id true. cluster_replica_no_failover: type: bool required: false description: This option, when set to true, prevents replicas from trying to failover its primary during primary failures. The default is false. cluster_allow_reads_when_down: type: bool required: false description: This is useful for two cases. The first case is for when an application doesn't require consistency of data during node failures or network partitions. The second use case is for configurations that don't meet the recommended three shards but want to enable cluster mode and scale later. The default is false. cluster_allow_pubsubshard_when_down: type: bool required: false description: This option, when set to true, allows nodes to serve pubsub shard traffic while the cluster is in a down state, as long as it believes it owns the slots. The default is true. cluster_link_sendbuf_limit: type: int required: false description: Cluster link send buffer limit is the limit on the memory usage of an individual cluster bus link's send buffer in bytes. This limit is disabled by default, set to a number greater than 0 to enable it. cluster_announce_hostname: type: int required: false description: Clusters can configure their announced hostname using this config. By default it is set to an empty string. cluster_preferred_endpoint_type: type: str choices: - hostname - ip - unknown-endpoint required: false description: Clusters can advertise how clients should connect to them using either their IP address, a user defined hostname, or by declaring they have no endpoint. cluster_blacklist_ttl: type: int required: false description: The blacklist TTL is 60 seconds by default, which should be sufficient for most clusters, but you may considering increasing this if you see nodes getting re-added while using CLUSTER FORGET. cluster_slot_stats_enabled: type: bool required: false description: By default, the 'cluster-slot-stats-enabled' is disabled, and only 'key-count' is captured. By enabling the 'cluster-slot-stats-enabled' config, the cluster will begin to capture advanced statistics. cluster_announce_ip: type: str required: false description: Cluster Docker / NAT setting. If cluster-announce-client-ipv4 and cluster-announce-client-ipv6 are omitted, then cluster-announce-ip is exposed to clients. cluster_announce_client_ipv4: type: str required: false description: Cluster Docker / NAT setting. Public IPv4 address. cluster_announce_client_ipv6: type: str required: false description: Cluster Docker / NAT setting. Public IPv6 address. cluster_announce_tls_port: type: int required: false description: Cluster Docker / NAT setting. If tls-cluster is set to yes and cluster-announce-tls-port is omitted or set to zero, then cluster-announce-port refers to the TLS port. Note also that cluster-announce-tls-port has no effect if tls-cluster is set to no. cluster_announce_port: type: int required: false description: Cluster Docker / NAT setting for cluster announce port. cluster_announce_bus_port: type: int required: false description: Cluster Docker / NAT setting. For cluster announce bus port. slowlog_log_slower_than: type: int required: false description: The server Slow Log is a system to log queries that exceeded a specified execution time. time is expressed in microseconds, so 1000000 is equivalent to one second. The default is 10000. Note that a negative number disables the slow log, while a value of zero forces the logging of every command. slowlog_max_len: type: int required: false description: There is no limit to this length. Just be aware that it will consume memory. Default 128. latency_monitor_threshold: type: int required: false description: The system only logs operations that were performed in a time equal or greater than the amount of milliseconds specified via the latency-monitor-threshold configuration directive. When its value is set to zero, the latency monitor is turned off. It defaults to zero. latency_tracking: type: bool required: false description: By default, the extended latency monitoring is enabled since the overhead of keeping track of the command latency is very small. latency_tracking_info_percentiles: type: str required: false description: By default the exported latency percentiles via the INFO latencystats command are the p50, p99, and p999. notify_keyspace_events: type: str required: false description: The server can notify Pub/Sub clients about events happening in the key space. This feature is documented at https://valkey.io/topics/notifications By default all notifications are disabled, the option is set to an empty string, because most users don't need this feature and the feature has some overhead. hash_max_listpack_entries: type: int required: false description: Hashes are encoded using a memory efficient data structure when they have a small number of entries, and the biggest entry does not exceed a given threshold. The default is 512. hash_max_listpack_value: type: int required: false description: Hashes are encoded using a memory efficient data structure when they have a small number of entries, and the biggest entry does not exceed a given threshold. The default is 64. list_max_listpack_size: type: str required: false description: he number of entries allowed per internal list node can be specified as a fixed maximum size or a maximum number of elements. For a fixed maximum size, use -5 through -1. Positive numbers mean store up to exactly that number of elements per list node. The default is -2 (max size 8 Kb). list_compress_depth: type: int choices: - 0 - 1 - 2 - 3 required: false description: Compress depth is the number of quicklist ziplist nodes from each side of the list to exclude from compression. The default is 0, disable all list compression. set_max_intset_entries: type: int required: false description: Sets containing non-integer values are also encoded using a memory efficient data structure when they have a small number of entries, and the biggest entry does not exceed a given threshold. The default value is 128. set_max_listpack_value: type: int required: false description: Sets containing non-integer values are also encoded using a memory efficient data structure when they have a small number of entries, and the biggest entry does not exceed a given threshold. The default value is 64. zset_max_listpack_entries: type: int required: false description: Similarly to hashes and lists, sorted sets are also specially encoded in order to save a lot of space. The default value is 128. zset_max_listpack_value: type: int required: false description: Similarly to hashes and lists, sorted sets are also specially encoded in order to save a lot of space. The default value is 64. hll_sparse_max_bytes: type: int required: false description: HyperLogLog sparse representation bytes limit. The default value is 3000. stream_node_max_bytes: type: int required: false description: Streams macro node max size, the default is 4096. When set to zero, the limit is ignored. stream_node_max_entries: type: int required: false description: Streams macro node max items, the default is 100. When set to zero, the limit is ignored. activerehashing: type: bool required: false description: Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in order to help rehashing the main server hash table (the one mapping top-level keys to values). The default is true. client_output_buffer_limit: type: list elements: str required: false description: The client output buffer limits can be used to force disconnection of clients that are not reading data from the server fast enough for some reason (a common reason is that a Pub/Sub client can't consume messages as fast as the publisher can produce them). The limit can be set differently for the three different classes of clients, normal, replica and pubsub. client_query_buffer_limit: type: str required: false description: Client query buffers accumulate new commands. They are limited to a fixed amount by default in order to avoid that a protocol desynchronization (for instance due to a bug in the client) will lead to unbound memory usage in the query buffer. The commented default is 1gb. maxmemory_clients: type: str required: false description: A memory value can be used for the client eviction threshold, The commented default is 1g. proto_max_bulk_len: type: str required: false description: In the server protocol, bulk requests, that are, elements representing single strings, are normally limited to 512 mb. However you can change this limit here, but must be 1mb or greater. hz: type: int required: false description: The server calls an internal function to perform many background tasks, like closing connections of clients in timeout, purging expired keys that are never requested, and so forth. ot all tasks are performed with the same frequency, but the server checks for tasks to perform according to the specified "hz" value. The range is between 1 and 500, however a value over 100 is usually not a good idea. Most users should use the default of 10 and raise this up to 100 only in environments where very low latency is required. dynamic_hz: type: bool required: false description: Normally it is useful to have an HZ value which is proportional to the number of clients connected. Since the default HZ value by default is conservatively set to 10, the server offers, and enables by default, the ability to use an adaptive HZ value which will temporarily raise when there are many connected clients. rdb_save_incremental_fsync: type: bool required: false description: When the server saves RDB file, if the following option is enabled the file will be fsync-ed every 4 MB of data generated. This is useful in order to commit the file to the disk more incrementally and avoid big latency spikes. The default is true. lfu_log_factor: type: int required: false description: The server's LFU eviction (see maxmemory setting) can be tuned. However it is a good idea to start with the default settings and only change them after investigating how to improve the performances and how the keys LFU change over time, which is possible to inspect via the OBJECT FREQ command. The default lfu-log-factor is 10. lfu_decay_time: type: int required: false description: The counter decay time is the time, in minutes, that must elapse in order for the key counter to be decremented. The default value for the lfu-decay-time is 1. A special value of 0 means we will never decay the counter. max_new_connections_per_cycle: type: int required: false description: The maximum number of new client connections accepted per event-loop cycle. By default, up to 10 new connection will be accepted per event-loop cycle for normal connections. max_new_tls_connections_per_cycle: type: int required: false description: The maximum number of new TLS connections accepted per event-loop cycle. By default up to 1 new connection per event-loop cycle for TLS connections. activedefrag: type: bool required: false description: Active (online) defragmentation allows a server to compact the spaces left between small allocations and deallocations of data in memory, thus allowing to reclaim back memory. Active defragmentation is disabled by default. active_defrag_ignore_bytes: type: int required: false description: Minimum amount of fragmentation waste to start active defrag. active_defrag_threshold_lower: type: int required: false description: Minimum percentage of fragmentation to start active defrag. active_defrag_threshold_upper: type: int required: false description: Maximum percentage of fragmentation at which we use maximum effort. active_defrag_cycle_min: type: int required: false description: Minimal effort for defrag in CPU percentage, to be used when the lower threshold is reached. active_defrag_cycle_max: type: int required: false description: Maximal effort for defrag in CPU percentage, to be used when the upper threshold is reached. active_defrag_max_scan_fields: type: int required: false description: Maximum number of set/hash/zset/list fields that will be processed from the main dictionary scan. jemalloc_bg_thread: type: bool required: false description: Jemalloc background thread for purging will be enabled by default. server_cpulist: type: str required: false description: It is possible to pin different threads and processes of the server to specific CPUs in your system, in order to maximize the performances of the server. You can pin the server/IO threads, bio threads, aof rewrite child process, and the bgsave child process. bio_cpulist: type: str required: false description: Unset by deafult. aof_rewrite_cpulist: type: str required: false description: Set aof rewrite child process to cpu affinity, unset by deafult. bgsave_cpulist: type: str required: false description: Set bgsave child process to cpu affinity, unset by deafult. ignore_warnings: type: str required: false description: In some cases the server will emit warnings and even refuse to start if it detects that the system is in bad state, it is possible to suppress these warnings by setting the following config which takes a space delimited list of warnings to suppress. availability_zone: type: str required: false description: Inform Valkey of the availability zone if running in a cloud environment. Currently this is only exposed via the info command for clients to use, but in the future we we may also use this when making decisions for replication. pidfile: type: str required: false description: Path to the pid file. valkey_enabled: type: bool required: true description: Enable and start Valkey. valkey_jpq: type: dict required: true description: A dictionary of JMESPath query strings. options: pkgs_absent: type: str required: true description: JMESPath query string for the packages absent. pkgs_present: type: str required: true description: JMESPath query string for the packages present. pkgs_present_backports: type: str required: true description: JMESPath query string for the backports packages present. service: type: str required: true description: JMESPath query string for the Valkey service. valkey_pkgs: type: list elements: dict required: true description: A list of distros and deb packages that should be absent and present. options: name: type: str required: true description: The Linux distro name. choices: - bookworm - noble - trixie pkgs_absent: type: list required: false description: A list of deb packages that should be absent. pkgs_present: type: list required: false description: A list of deb packages that should be present. pkgs_present_backports: type: list required: true description: A list of deb packages that should be present from backports. valkey_protected_configs: type: list required: false description: A list of Valkey config to be editing using lineinfile. valkey_verify: type: bool required: true description: Use the argument specification to verify the variables that start with valkey_. ...