Adds configuration properties for TLSConfig in ConsulClient.

fixes gh-360

spring-cloud-consul-core/src/main/java/org/springframework/cloud/consul/ConsulAutoConfiguration.java

@@ -16,7 +16,10 @@
 
 package org.springframework.cloud.consul;
 
+import com.ecwid.consul.transport.TLSConfig;
+import com.ecwid.consul.v1.ConsulClient;
 import org.aspectj.lang.annotation.Aspect;
+
 import org.springframework.boot.actuate.autoconfigure.ConditionalOnEnabledHealthIndicator;
 import org.springframework.boot.actuate.condition.ConditionalOnEnabledEndpoint;
 import org.springframework.boot.actuate.endpoint.Endpoint;
@@ -32,8 +35,6 @@ import org.springframework.retry.annotation.Retryable;
 import org.springframework.retry.interceptor.RetryInterceptorBuilder;
 import org.springframework.retry.interceptor.RetryOperationsInterceptor;
 
-import com.ecwid.consul.v1.ConsulClient;
-
 /**
  * @author Spencer Gibb
  */
@@ -51,6 +52,17 @@ public class ConsulAutoConfiguration {
 	@Bean
 	@ConditionalOnMissingBean
 	public ConsulClient consulClient(ConsulProperties consulProperties) {
+		if (consulProperties.getTls() != null) {
+			ConsulProperties.TLSConfig tls = consulProperties.getTls();
+			TLSConfig tlsConfig = new TLSConfig(
+					tls.getKeyStoreInstanceType(),
+					tls.getCertificatePath(),
+					tls.getCertificatePassword(),
+					tls.getKeyStorePath(),
+					tls.getKeyStorePassword()
+			);
+			return new ConsulClient(consulProperties.getHost(), consulProperties.getPort(), tlsConfig);
+		}
 		return new ConsulClient(consulProperties.getHost(), consulProperties.getPort());
 	}
 

spring-cloud-consul-core/src/main/java/org/springframework/cloud/consul/ConsulProperties.java

@@ -18,6 +18,7 @@ package org.springframework.cloud.consul;
 
 import javax.validation.constraints.NotNull;
 
+import com.ecwid.consul.transport.TLSConfig.KeyStoreInstanceType;
 import lombok.Data;
 
 import org.springframework.boot.context.properties.ConfigurationProperties;
@@ -40,4 +41,25 @@ public class ConsulProperties {
 
 	/** Is spring cloud consul enabled */
 	private boolean enabled = true;
+
+	/** configuration for TLS */
+	private TLSConfig tls;
+
+	@Data
+	public static class TLSConfig {
+		/** Type of key framework to use. */
+		private KeyStoreInstanceType keyStoreInstanceType;
+
+		/** Path to an external keystore */
+		private String keyStorePath;
+
+		/** Password to an external keystore */
+		private String keyStorePassword;
+
+		/**File path to the certificate. */
+		private String certificatePath;
+
+		/** Password to open the certificate. */
+		private String certificatePassword;
+	}
 }