lib/terraforming/resource/elasti_cache_cluster.rb
module Terraforming
module Resource
class ElastiCacheCluster
include Terraforming::Util
def self.tf(client: Aws::ElastiCache::Client.new)
self.new(client).tf
end
def self.tfstate(client: Aws::ElastiCache::Client.new)
self.new(client).tfstate
end
def initialize(client)
@client = client
end
def tf
apply_template(@client, "tf/elasti_cache_cluster")
end
def tfstate
cache_clusters.inject({}) do |resources, cache_cluster|
attributes = {
"cache_nodes.#" => cache_cluster.cache_nodes.length.to_s,
"cluster_id" => cache_cluster.cache_cluster_id,
"engine" => cache_cluster.engine,
"engine_version" => cache_cluster.engine_version,
"id" => cache_cluster.cache_cluster_id,
"node_type" => cache_cluster.cache_node_type,
"num_cache_nodes" => "1",
"parameter_group_name" => cache_cluster.cache_parameter_group.cache_parameter_group_name,
"security_group_ids.#" => security_group_ids_of(cache_cluster).length.to_s,
"security_group_names.#" => security_group_names_of(cache_cluster).length.to_s,
"subnet_group_name" => cache_cluster.cache_subnet_group_name,
"tags.#" => "0",
}
attributes["port"] = if cache_cluster.configuration_endpoint
cache_cluster.configuration_endpoint.port.to_s
else
cache_cluster.cache_nodes[0].endpoint.port.to_s
end
if cache_cluster.notification_configuration
attributes["notification_topic_arn"] = cache_cluster.notification_configuration.topic_arn
end
resources["aws_elasticache_cluster.#{module_name_of(cache_cluster)}"] = {
"type" => "aws_elasticache_cluster",
"primary" => {
"id" => cache_cluster.cache_cluster_id,
"attributes" => attributes
}
}
resources
end
end
private
def cache_clusters
@client.describe_cache_clusters(show_cache_node_info: true).map(&:cache_clusters).flatten
end
def cluster_in_vpc?(cache_cluster)
cache_cluster.cache_security_groups.empty?
end
def security_group_ids_of(cache_cluster)
cache_cluster.security_groups.map { |sg| sg.security_group_id }
end
def security_group_names_of(cache_cluster)
cache_cluster.cache_security_groups.map { |sg| sg.cache_security_group_name }
end
def module_name_of(cache_cluster)
normalize_module_name(cache_cluster.cache_cluster_id)
end
end
end
end