Add support for Redis session storage

Author: LEDfan

pom.xml

@@ -132,6 +132,14 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-actuator</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.session</groupId>
+			<artifactId>spring-session-data-redis</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>io.lettuce</groupId>
+			<artifactId>lettuce-core</artifactId>
+		</dependency>
 
 		<!-- Spring social security components -->
 		<!-- Note: also includes an embedded datasource (H2) to remember social logins -->

src/main/java/eu/openanalytics/containerproxy/ContainerProxyApplication.java

@@ -123,6 +123,9 @@ private static void setDefaultProperties(SpringApplication app ) {
 		Properties properties = new Properties();
 		properties.put("management.health.ldap.enabled", false);
 		properties.put("management.endpoint.health.probes.enabled", true);
+	
+		// use in-memory session storage by default. Can be overwritten in application.yml
+		properties.put("spring.session.store-type", "none");
 		app.setDefaultProperties(properties);
 	}