Puppet Class: nova::cache

Defined in:
manifests/cache.pp

Overview

Class nova::cache

nova cache configuration

parameters

config_prefix

(Optional) Prefix for building the configuration dictionary for the cache region. This should not need to be changed unless there is another dogpile.cache region with the same configuration name. (string value) Defaults to $::os_service_default

expiration_time

(Optional) Default TTL, in seconds, for any cached item in the dogpile.cache region. This applies to any cached method that doesn’t have an explicit cache expiration time defined for it. (integer value) Defaults to $::os_service_default

backend

(Optional) Dogpile.cache backend module. It is recommended that Memcache with pooling (oslo_cache.memcache_pool) or Redis (dogpile.cache.redis) be used in production deployments. (string value) Defaults to $::os_service_default

backend_argument

(Optional) Arguments supplied to the backend module. Specify this option once per argument to be passed to the dogpile.cache backend. Example format: “<argname>:<value>”. (list value) Defaults to $::os_service_default

proxies

(Optional) Proxy classes to import that will affect the way the dogpile.cache backend functions. See the dogpile.cache documentation on changing-backend-behavior. (list value) Defaults to $::os_service_default

enabled

(Optional) Global toggle for caching. (boolean value) Defaults to $::os_service_default

debug_cache_backend

(Optional) Extra debugging from the cache backend (cache keys, get/set/delete/etc calls). This is only really useful if you need to see the specific cache-backend get/set/delete calls with the keys/values. Typically this should be left set to false. (boolean value) Defaults to $::os_service_default

memcache_servers

(Optional) Memcache servers in the format of “host:port”. (dogpile.cache.memcache and oslo_cache.memcache_pool backends only). (list value) Defaults to $::os_service_default

memcache_dead_retry

(Optional) Number of seconds memcached server is considered dead before it is tried again. (dogpile.cache.memcache and oslo_cache.memcache_pool backends only). (integer value) Defaults to $::os_service_default

memcache_socket_timeout

(Optional) Timeout in seconds for every call to a server. (dogpile.cache.memcache and oslo_cache.memcache_pool backends only). (floating point value) Defaults to $::os_service_default

enable_socket_keepalive

(Optional) Global toggle for the socket keepalive of dogpile’s pymemcache backend Defaults to $::os_service_default

socket_keepalive_idle

(Optional) The time (in seconds) the connection needs to remain idle before TCP starts sending keepalive probes. Should be a positive integer most greater than zero. Defaults to $::os_service_default

socket_keepalive_interval

(Optional) The time (in seconds) between individual keepalive probes. Should be a positive integer most greater than zero. Defaults to $::os_service_default

socket_keepalive_count

(Optional) The maximum number of keepalive probes TCP should send before dropping the connection. Should be a positive integer most greater than zero. Defaults to $::os_service_default

memcache_pool_maxsize

(Optional) Max total number of open connections to every memcached server. (oslo_cache.memcache_pool backend only). (integer value) Defaults to $::os_service_default

memcache_pool_unused_timeout

(Optional) Number of seconds a connection to memcached is held unused in the pool before it is closed. (oslo_cache.memcache_pool backend only) (integer value) Defaults to $::os_service_default

memcache_pool_connection_get_timeout

(Optional) Number of seconds that an operation will wait to get a memcache client connection. (integer value) Defaults to $::os_service_default

manage_backend_package

(Optional) Whether to install the backend package for the cache. Defaults to true

tls_enabled

(Optional) Global toggle for TLS usage when communicating with the caching servers. Default to $::os_service_default

tls_cafile

(Optional) Path to a file of concatenated CA certificates in PEM format necessary to establish the caching server’s authenticity. If tls_enabled is False, this option is ignored. Default to $::os_service_default

tls_certfile

(Optional) Path to a single file in PEM format containing the client’s certificate as well as any number of CA certificates needed to establish the certificate’s authenticity. This file is only required when client side authentication is necessary. If tls_enabled is False, this option is ignored. Default to $::os_service_default

tls_keyfile

(Optional) Path to a single file containing the client’s private key in. Otherwise the private key will be taken from the file specified in tls_certfile. If tls_enabled is False, this option is ignored. Default to $::os_service_default

tls_allowed_ciphers

(Optional) Set the available ciphers for sockets created with the TLS context. It should be a string in the OpenSSL cipher list format. If not specified, all OpenSSL enabled ciphers will be available. Default to $::os_service_default

enable_retry_client

(Optional) Enable retry client mechanisms to handle failure. Those mechanisms can be used to wrap all kind of pymemcache clients. The wrapper allows you to define how many attempts to make and how long to wait between attempts. Default to $::os_service_default

retry_attempts

(Optional) Number of times to attempt an action before failing. Default to $::os_service_default

retry_delay

(Optional) Number of seconds to sleep between each attempt. Default to $::os_service_default

hashclient_retry_attempts

(Optional) Amount of times a client should be tried before it is marked dead and removed from the pool in the HashClient’s internal mechanisms. Default to $::os_service_default

hashclient_retry_delay

(Optional) Time in seconds that should pass between retry attempts in the HashClient’s internal mechanisms. Default to $::os_service_default

dead_timeout

(Optional) Time in seconds before attempting to add a node back in the pool in the HashClient’s internal mechanisms. Default to $::os_service_default

Parameters:

  • config_prefix (Any) (defaults to: $::os_service_default)
  • expiration_time (Any) (defaults to: $::os_service_default)
  • backend (Any) (defaults to: $::os_service_default)
  • backend_argument (Any) (defaults to: $::os_service_default)
  • proxies (Any) (defaults to: $::os_service_default)
  • enabled (Any) (defaults to: $::os_service_default)
  • debug_cache_backend (Any) (defaults to: $::os_service_default)
  • memcache_servers (Any) (defaults to: $::os_service_default)
  • memcache_dead_retry (Any) (defaults to: $::os_service_default)
  • memcache_socket_timeout (Any) (defaults to: $::os_service_default)
  • enable_socket_keepalive (Any) (defaults to: $::os_service_default)
  • socket_keepalive_idle (Any) (defaults to: $::os_service_default)
  • socket_keepalive_interval (Any) (defaults to: $::os_service_default)
  • socket_keepalive_count (Any) (defaults to: $::os_service_default)
  • memcache_pool_maxsize (Any) (defaults to: $::os_service_default)
  • memcache_pool_unused_timeout (Any) (defaults to: $::os_service_default)
  • memcache_pool_connection_get_timeout (Any) (defaults to: $::os_service_default)
  • manage_backend_package (Any) (defaults to: true)
  • tls_enabled (Any) (defaults to: $::os_service_default)
  • tls_cafile (Any) (defaults to: $::os_service_default)
  • tls_certfile (Any) (defaults to: $::os_service_default)
  • tls_keyfile (Any) (defaults to: $::os_service_default)
  • tls_allowed_ciphers (Any) (defaults to: $::os_service_default)
  • enable_retry_client (Any) (defaults to: $::os_service_default)
  • retry_attempts (Any) (defaults to: $::os_service_default)
  • retry_delay (Any) (defaults to: $::os_service_default)
  • hashclient_retry_attempts (Any) (defaults to: $::os_service_default)
  • hashclient_retry_delay (Any) (defaults to: $::os_service_default)
  • dead_timeout (Any) (defaults to: $::os_service_default) 


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# File 'manifests/cache.pp', line 174

class nova::cache (
  $config_prefix                        = $::os_service_default,
  $expiration_time                      = $::os_service_default,
  $backend                              = $::os_service_default,
  $backend_argument                     = $::os_service_default,
  $proxies                              = $::os_service_default,
  $enabled                              = $::os_service_default,
  $debug_cache_backend                  = $::os_service_default,
  $memcache_servers                     = $::os_service_default,
  $memcache_dead_retry                  = $::os_service_default,
  $memcache_socket_timeout              = $::os_service_default,
  $enable_socket_keepalive              = $::os_service_default,
  $socket_keepalive_idle                = $::os_service_default,
  $socket_keepalive_interval            = $::os_service_default,
  $socket_keepalive_count               = $::os_service_default,
  $memcache_pool_maxsize                = $::os_service_default,
  $memcache_pool_unused_timeout         = $::os_service_default,
  $memcache_pool_connection_get_timeout = $::os_service_default,
  $manage_backend_package               = true,
  $tls_enabled                          = $::os_service_default,
  $tls_cafile                           = $::os_service_default,
  $tls_certfile                         = $::os_service_default,
  $tls_keyfile                          = $::os_service_default,
  $tls_allowed_ciphers                  = $::os_service_default,
  $enable_retry_client                  = $::os_service_default,
  $retry_attempts                       = $::os_service_default,
  $retry_delay                          = $::os_service_default,
  $hashclient_retry_attempts            = $::os_service_default,
  $hashclient_retry_delay               = $::os_service_default,
  $dead_timeout                         = $::os_service_default,
) {

  include nova::deps

  oslo::cache { 'nova_config':
    config_prefix                        => $config_prefix,
    expiration_time                      => $expiration_time,
    backend                              => $backend,
    backend_argument                     => $backend_argument,
    proxies                              => $proxies,
    enabled                              => $enabled,
    debug_cache_backend                  => $debug_cache_backend,
    memcache_servers                     => $memcache_servers,
    memcache_dead_retry                  => $memcache_dead_retry,
    memcache_socket_timeout              => $memcache_socket_timeout,
    enable_socket_keepalive              => $enable_socket_keepalive,
    socket_keepalive_idle                => $socket_keepalive_idle,
    socket_keepalive_interval            => $socket_keepalive_interval,
    socket_keepalive_count               => $socket_keepalive_count,
    memcache_pool_maxsize                => $memcache_pool_maxsize,
    memcache_pool_unused_timeout         => $memcache_pool_unused_timeout,
    memcache_pool_connection_get_timeout => $memcache_pool_connection_get_timeout,
    manage_backend_package               => $manage_backend_package,
    tls_enabled                          => $tls_enabled,
    tls_cafile                           => $tls_cafile,
    tls_certfile                         => $tls_certfile,
    tls_keyfile                          => $tls_keyfile,
    tls_allowed_ciphers                  => $tls_allowed_ciphers,
    enable_retry_client                  => $enable_retry_client,
    retry_attempts                       => $retry_attempts,
    retry_delay                          => $retry_delay,
    hashclient_retry_attempts            => $hashclient_retry_attempts,
    hashclient_retry_delay               => $hashclient_retry_delay,
    dead_timeout                         => $dead_timeout,
  }
}