chef/site-cookbooks/kosmos_postgresql/resources/server.rb

79 lines
2.2 KiB
Ruby

resource_name :postgresql_custom_server
provides :postgresql_custom_server
property :postgresql_version, String, required: true, name_property: true
property :role, String, required: true # Can be primary or replica
action :create do
postgresql_version = new_resource.postgresql_version
postgresql_data_dir = "/var/lib/postgresql/#{postgresql_version}/main"
postgresql_service = "postgresql@#{postgresql_version}-main"
postgresql_credentials = data_bag_item('credentials', 'postgresql')
build_essential do
compile_time true
end
package("libpq-dev") { action :nothing }.run_action(:install)
chef_gem 'pg' do
compile_time true
end
user "postgres" do
manage_home false
end
postgresql_server_install "main" do
version postgresql_version
setup_repo true
password postgresql_credentials['server_password']
action :install
end
service postgresql_service do
supports restart: true, status: true, reload: true
action [:enable, :start]
end
# This service is a dependency that will auto-start our cluster service on
# boot if it's enabled, so we disable it explicitly
service "postgresql" do
action :disable
end
shared_buffers = if node['memory']['total'].to_i / 1024 < 1024 # < 1GB RAM
"128MB"
else # >= 1GB RAM, use 50% of total RAM
"#{node['memory']['total'].to_i / 1024 / 2}MB"
end
additional_config = {
max_connections: 200, # default
shared_buffers: shared_buffers,
unix_socket_directories: "/var/run/postgresql",
dynamic_shared_memory_type: "posix",
timezone: "UTC", # default is GMT
listen_addresses: "0.0.0.0"
}
additional_config[:promote_trigger_file] = "#{postgresql_data_dir}/failover.trigger"
postgresql_server_conf "main" do
version postgresql_version
additional_config additional_config
notifies :reload, "service[#{postgresql_service}]", :delayed
end
postgresql_user "replication" do
action :create
replication true
password postgresql_credentials['replication_password']
end
end
action_class do
# to use the data_dir helper
include PostgresqlCookbook::Helpers
end