Fix grpc connection out of connections

Author: Knerio

config/database.yml

@@ -24,7 +24,7 @@ default: &default
   port: <%= db_config[:port] %>
   # For details on connection pooling, see Rails configuration guide
   # https://guides.rubyonrails.org/configuring.html#database-pooling
-  pool: <%= Sagittarius::Configuration.config[:rails][:threads] %>
+  pool: <%= Sagittarius::Configuration.config[:rails][:db][:pool_size] %>
 
 development:
   <<: *default

config/sagittarius.example.yml

@@ -18,6 +18,7 @@ rails:
     port: 5433
     username: sagittarius
     password: sagittarius
+    pool_size: 4
     encryption:
       primary_key: YzaMv4bXYK84unYIQI4Ms4sV3ucbvWs0
       deterministic_key: jgTaxTqzM15ved1S8HdXrqrjfCfF5R0h

lib/sagittarius/configuration.rb

@@ -42,6 +42,7 @@ def self.defaults
             port: 5433,
             username: 'sagittarius',
             password: 'sagittarius',
+            pool_size: 4,
             encryption: {
               primary_key: 'YzaMv4bXYK84unYIQI4Ms4sV3ucbvWs0',
               deterministic_key: 'jgTaxTqzM15ved1S8HdXrqrjfCfF5R0h',

lib/sagittarius/grpc/launcher.rb

@@ -8,11 +8,12 @@ class Launcher
       HOST = Sagittarius::Configuration.config[:rails][:grpc][:host]
 
       def create_server
+        # grpc handles interceptors in opposite order. Reversing so we can list them in top-to-bottom order
         @server = GRPC::RpcServer.new(interceptors: [
           Sagittarius::Middleware::Grpc::Context.new,
           Sagittarius::Middleware::Grpc::Logger.new,
           Sagittarius::Middleware::Grpc::Authentication.new
-        ].reverse) # grpc handles interceptors in opposite order. Reversing so we can list them in top-to-bottom order
+        ].reverse, pool_size: Configuration.config[:rails][:threads])
         logger.info('GRPC server created')
 
         @server.add_http2_port(HOST, :this_port_is_insecure)