Add missing files

site-cookbooks/kosmos_postgresql/resources/server.rb

@@ -0,0 +1,78 @@
+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