Update keycloack webclient config

auth-gateway/auth-gateway-app/src/main/kotlin/co/nilin/opex/auth/config/WebClientConfig.kt

@@ -1,5 +1,6 @@
 package co.nilin.opex.auth.config
 
+import io.netty.channel.ChannelOption
 import org.springframework.beans.factory.annotation.Qualifier
 import org.springframework.cloud.client.loadbalancer.LoadBalanced
 import org.springframework.context.annotation.Bean
@@ -9,13 +10,30 @@ import org.springframework.web.reactive.function.client.WebClient
 import org.zalando.logbook.Logbook
 import org.zalando.logbook.netty.LogbookClientHandler
 import reactor.netty.http.client.HttpClient
+import reactor.netty.resources.ConnectionProvider
+import java.time.Duration
 
 @Configuration
 class WebClientConfig {
 
     @Bean("keycloakWebClient")
     fun keycloakWebClient(keycloakConfig: KeycloakConfig, logbook: Logbook): WebClient {
-        val client = HttpClient.create().doOnConnected { it.addHandlerLast(LogbookClientHandler(logbook)) }
+        val provider = ConnectionProvider.builder("keycloakPool")
+            .maxConnections(100)
+            .maxIdleTime(Duration.ofSeconds(30))
+            .maxLifeTime(Duration.ofMinutes(2))
+            .pendingAcquireTimeout(Duration.ofSeconds(60))
+            .evictInBackground(Duration.ofMinutes(1))
+            .build()
+
+        val client = HttpClient.create(provider)
+            .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10000)
+            .responseTimeout(Duration.ofSeconds(10))
+            .keepAlive(true)
+            .doOnConnected { it.addHandlerLast(LogbookClientHandler(logbook)) }
+
+        client.warmup().block()
+
         return WebClient.builder()
             .clientConnector(ReactorClientHttpConnector(client))
             .baseUrl(keycloakConfig.url)