├── .gitignore
├── README.md
├── app
    ├── Dockerfile
    ├── pom.xml
    └── src
    │   └── main
    │       ├── java
    │           └── demo
    │           │   ├── DemoApplication.java
    │           │   ├── HttpSessionConfig.java
    │           │   ├── Initializer.java
    │           │   ├── MvcConfig.java
    │           │   ├── PagesController.java
    │           │   ├── SecurityInitializer.java
    │           │   └── WebSecurityConfig.java
    │       └── resources
    │           ├── application.properties
    │           ├── static
    │               ├── css
    │               │   └── style.css
    │               └── images
    │               │   └── avatar_2x.png
    │           └── templates
    │               ├── hello.html
    │               ├── home.html
    │               └── login.html
└── docker-compose.yml


/.gitignore:
--------------------------------------------------------------------------------
1 | # https://git-scm.com/docs/gitignore
2 | # https://help.github.com/articles/ignoring-files
3 | # Example .gitignore files: https://github.com/github/gitignore
4 | 
5 | app/target/


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/README.md:
--------------------------------------------------------------------------------
 1 | # Spring Session Demo with Docker and Docker Compose
 2 | 
 3 | This is a demo project, which uses Spring Boot, Spring Session, Redis, HAProxy and Docker to demonstrate the use of Spring Session within a scalable environment.
 4 | 
 5 | ## Prerequisets
 6 | 
 7 | ```
 8 | $ docker-machine create --driver virtualbox dev
 9 | ```
10 | 
11 | To be able to let docker talk to the machine we've just created we need to export some environment variables. You can do this by using:
12 | 
13 | ```
14 | $ eval "$(docker-machine env dev)"
15 | ```
16 | 
17 | ## How to run
18 | 
19 | Go into the 'app' directory and let's first build the application.
20 | 
21 | ```
22 | $ mvn package
23 | ```
24 | 
25 | Go back into the root of the project.
26 | 
27 | Build the container images
28 | 
29 | ```
30 | $ docker-compose build
31 | ```
32 | 
33 | Start docker-compose and watch the containers start
34 | 
35 | ```
36 | $ docker-compose run
37 | ```
38 | 
39 | ## Playing around with the App
40 | 
41 | To figure out on which host you can see the application you can run:
42 | 
43 | ```
44 | $ docker-machine ip dev
45 | ```
46 | 
47 | Now we know the ip address on which the container host is running. This is important because HAProxy is exposed on port 80 of the host.
48 | 
49 | Now you can connect to http://[DOCKER_HOST]/ and you should see the app.
50 | 


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/app/Dockerfile:
--------------------------------------------------------------------------------
1 | FROM java:8
2 | VOLUME /tmp
3 | ADD target/demo-0.0.1-SNAPSHOT.jar app.jar
4 | RUN bash -c 'touch /app.jar'
5 | EXPOSE 8080
6 | ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
7 | 


--------------------------------------------------------------------------------
/app/pom.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 3 | 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 4 | 	<modelVersion>4.0.0</modelVersion>
 5 | 
 6 | 	<groupId>org.test</groupId>
 7 | 	<artifactId>demo</artifactId>
 8 | 	<version>0.0.1-SNAPSHOT</version>
 9 | 	<packaging>jar</packaging>
10 | 
11 | 	<name>demo</name>
12 | 	<description>Demo project for Spring Boot</description>
13 | 
14 | 	<parent>
15 | 		<groupId>org.springframework.boot</groupId>
16 | 		<artifactId>spring-boot-starter-parent</artifactId>
17 | 		<version>1.2.5.RELEASE</version>
18 | 		<relativePath/> <!-- lookup parent from repository -->
19 | 	</parent>
20 | 
21 | 	<properties>
22 | 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
23 | 		<java.version>1.8</java.version>
24 | 	</properties>
25 | 
26 | 	<dependencies>
27 | 		<dependency>
28 | 			<groupId>org.springframework.boot</groupId>
29 | 			<artifactId>spring-boot-starter-security</artifactId>
30 | 		</dependency>
31 | 		<dependency>
32 | 			<groupId>org.springframework.boot</groupId>
33 | 			<artifactId>spring-boot-starter-thymeleaf</artifactId>
34 | 		</dependency>
35 | 
36 | 		<dependency>
37 | 			<groupId>org.springframework.boot</groupId>
38 | 			<artifactId>spring-boot-starter-test</artifactId>
39 | 			<scope>test</scope>
40 | 		</dependency>
41 | 
42 | 		<dependency>
43 | 			<groupId>org.springframework.session</groupId>
44 | 			<artifactId>spring-session</artifactId>
45 | 			<version>1.0.1.RELEASE</version>
46 | 		</dependency>
47 | 
48 | 		<dependency>
49 | 			<groupId>org.springframework.boot</groupId>
50 | 			<artifactId>spring-boot-starter-redis</artifactId>
51 | 		</dependency>
52 | 
53 | 		<dependency>
54 | 			<groupId>org.springframework.session</groupId>
55 | 			<artifactId>spring-session-data-redis</artifactId>
56 | 			<version>1.0.1.RELEASE</version>
57 | 			<type>pom</type>
58 | 		</dependency>
59 | 
60 | 		<dependency>
61 | 			<groupId>org.webjars</groupId>
62 | 			<artifactId>bootstrap</artifactId>
63 | 			<version>3.2.0</version>
64 | 		</dependency>
65 | 
66 | 	</dependencies>
67 | 
68 | 	<build>
69 | 		<plugins>
70 | 			<plugin>
71 | 				<groupId>org.springframework.boot</groupId>
72 | 				<artifactId>spring-boot-maven-plugin</artifactId>
73 | 			</plugin>
74 | 		</plugins>
75 | 	</build>
76 | 
77 | 
78 | </project>
79 | 


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/app/src/main/java/demo/DemoApplication.java:
--------------------------------------------------------------------------------
 1 | package demo;
 2 | 
 3 | import org.springframework.boot.SpringApplication;
 4 | import org.springframework.boot.autoconfigure.SpringBootApplication;
 5 | import org.springframework.context.annotation.ComponentScan;
 6 | 
 7 | @SpringBootApplication
 8 | @ComponentScan
 9 | public class DemoApplication {
10 | 
11 |     public static void main(String[] args) {
12 |         SpringApplication.run(DemoApplication.class, args);
13 |     }
14 | }
15 | 


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/app/src/main/java/demo/HttpSessionConfig.java:
--------------------------------------------------------------------------------
 1 | package demo;
 2 | 
 3 | import org.springframework.context.annotation.Bean;
 4 | import org.springframework.context.annotation.Configuration;
 5 | import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
 6 | import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;
 7 | 
 8 | @Configuration
 9 | @EnableRedisHttpSession
10 | public class HttpSessionConfig {
11 | 
12 |     @Bean
13 |     public JedisConnectionFactory connectionFactory() {
14 |         JedisConnectionFactory connection = new JedisConnectionFactory();
15 |         connection.setHostName("redis");
16 |         return connection;
17 |     }
18 | }


--------------------------------------------------------------------------------
/app/src/main/java/demo/Initializer.java:
--------------------------------------------------------------------------------
1 | package demo;
2 | 
3 | import org.springframework.session.web.context.AbstractHttpSessionApplicationInitializer;
4 | 
5 | public class Initializer extends AbstractHttpSessionApplicationInitializer {
6 | 
7 | }


--------------------------------------------------------------------------------
/app/src/main/java/demo/MvcConfig.java:
--------------------------------------------------------------------------------
 1 | package demo;
 2 | 
 3 | import org.springframework.context.annotation.Configuration;
 4 | import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 5 | import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
 6 | import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
 7 | import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
 8 | 
 9 | @EnableWebMvc
10 | @Configuration
11 | public class MvcConfig extends WebMvcConfigurerAdapter {
12 | 
13 | 
14 |     @Override
15 |     public void addResourceHandlers(final ResourceHandlerRegistry registry) {
16 |         super.addResourceHandlers(registry);
17 |         registry.addResourceHandler("/css/**").addResourceLocations("classpath:/static/css/");
18 |         registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
19 |         if (!registry.hasMappingForPattern("/webjars/**")) {
20 |             registry.addResourceHandler("/webjars/**").addResourceLocations(
21 |                     "classpath:/META-INF/resources/webjars/");
22 |         }
23 |     }
24 | 
25 |     @Override
26 |     public void addViewControllers(ViewControllerRegistry registry) {
27 |         super.addViewControllers(registry);
28 |         registry.addViewController("/").setViewName("home");
29 |         registry.addViewController("/login").setViewName("login");
30 |     }
31 | 
32 | }
33 | 


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/app/src/main/java/demo/PagesController.java:
--------------------------------------------------------------------------------
 1 | package demo;
 2 | 
 3 | import java.net.InetAddress;
 4 | import java.net.UnknownHostException;
 5 | 
 6 | import org.slf4j.Logger;
 7 | import org.slf4j.LoggerFactory;
 8 | import org.springframework.stereotype.Controller;
 9 | import org.springframework.ui.Model;
10 | import org.springframework.web.bind.annotation.RequestMapping;
11 | 
12 | @Controller
13 | public class PagesController {
14 | 
15 |     private static Logger log = LoggerFactory.getLogger(PagesController.class);
16 | 
17 |     @RequestMapping("/")
18 |     public String getIndex(Model model){
19 |         final InetAddress localHost;
20 |         try {
21 |             localHost = InetAddress.getLocalHost();
22 |             model.addAttribute("host", localHost.getHostName());
23 |             model.addAttribute("ip", localHost.getHostAddress());
24 |         } catch (UnknownHostException e) {
25 |             log.warn("An exception occurred while trying to determine the host and IP address: {}", e);
26 |         }
27 |         return "home";
28 |     }
29 | 
30 |     @RequestMapping("/hello")
31 |     public String getHello(Model model){
32 |         final InetAddress localHost;
33 |         try {
34 |             localHost = InetAddress.getLocalHost();
35 |             model.addAttribute("host", localHost.getHostName());
36 |             model.addAttribute("ip", localHost.getHostAddress());
37 |         } catch (UnknownHostException e) {
38 |             log.warn("An exception occurred while trying to determine the host and IP address: {}", e);
39 |         }
40 |         return "hello";
41 |     }
42 | 
43 | }
44 | 


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/app/src/main/java/demo/SecurityInitializer.java:
--------------------------------------------------------------------------------
 1 | package demo;
 2 | 
 3 | import org.springframework.security.web.context.AbstractSecurityWebApplicationInitializer;
 4 | 
 5 | public class SecurityInitializer extends
 6 |         AbstractSecurityWebApplicationInitializer {
 7 | 
 8 |         public SecurityInitializer() {
 9 |                 super(WebSecurityConfig.class, HttpSessionConfig.class);
10 |         }
11 | }


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/app/src/main/java/demo/WebSecurityConfig.java:
--------------------------------------------------------------------------------
 1 | package demo;
 2 | 
 3 | import org.springframework.beans.factory.annotation.Autowired;
 4 | import org.springframework.boot.autoconfigure.security.SecurityProperties;
 5 | import org.springframework.context.annotation.Configuration;
 6 | import org.springframework.core.annotation.Order;
 7 | import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
 8 | import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 9 | import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
10 | import org.springframework.security.config.annotation.web.servlet.configuration.EnableWebMvcSecurity;
11 | 
12 | @Configuration
13 | @EnableWebMvcSecurity
14 | @Order(SecurityProperties.ACCESS_OVERRIDE_ORDER)
15 | public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
16 | 
17 |     @Override
18 |     protected void configure(HttpSecurity http) throws Exception {
19 |         http
20 |                 .authorizeRequests()
21 |                 .antMatchers("/css/**", "/webjars/**", "/", "/home", "/favicon.ico").permitAll()
22 |                 .anyRequest().authenticated()
23 |                 .and()
24 |                 .formLogin()
25 |                 .loginPage("/login")
26 |                 .permitAll()
27 |                 .and()
28 |                 .logout()
29 |                 .permitAll()
30 |                 .logoutSuccessUrl("/")
31 |                 .and().rememberMe();
32 |     }
33 | 
34 |     @Autowired
35 |     public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
36 |         auth
37 |                 .inMemoryAuthentication()
38 |                 .withUser("user").password("password").roles("USER");
39 |     }
40 | 
41 | }
42 | 


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/app/src/main/resources/application.properties:
--------------------------------------------------------------------------------
1 | spring.redis.host=redis
2 | spring.redis.port=6379


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/app/src/main/resources/static/css/style.css:
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  1 | /*
  2 |  * Specific styles of signin component
  3 |  */
  4 | /*
  5 |  * General styles
  6 |  */
  7 | body, html {
  8 |     height: 100%;
  9 |     background-color: #eee;
 10 | }
 11 | 
 12 | .card-container.card {
 13 |     max-width: 350px;
 14 |     padding: 40px 40px;
 15 | }
 16 | 
 17 | .btn {
 18 |     font-weight: 700;
 19 |     -moz-user-select: none;
 20 |     -webkit-user-select: none;
 21 |     user-select: none;
 22 |     cursor: default;
 23 | }
 24 | 
 25 | /*
 26 |  * Card component
 27 |  */
 28 | .card {
 29 |     background-color: #F7F7F7;
 30 |     /* just in case there no content*/
 31 |     padding: 20px 25px 30px;
 32 |     margin: 0 auto 25px;
 33 |     margin-top: 50px;
 34 |     /* shadows and rounded borders */
 35 |     -moz-border-radius: 2px;
 36 |     -webkit-border-radius: 2px;
 37 |     border-radius: 2px;
 38 |     -moz-box-shadow: 0px 2px 2px rgba(0, 0, 0, 0.3);
 39 |     -webkit-box-shadow: 0px 2px 2px rgba(0, 0, 0, 0.3);
 40 |     box-shadow: 0px 2px 2px rgba(0, 0, 0, 0.3);
 41 | }
 42 | 
 43 | .profile-img-card {
 44 |     width: 96px;
 45 |     height: 96px;
 46 |     margin: 0 auto 10px;
 47 |     display: block;
 48 |     -moz-border-radius: 50%;
 49 |     -webkit-border-radius: 50%;
 50 |     border-radius: 50%;
 51 | }
 52 | 
 53 | /*
 54 |  * Form styles
 55 |  */
 56 | .profile-name-card {
 57 |     font-size: 16px;
 58 |     font-weight: bold;
 59 |     text-align: center;
 60 |     margin: 10px 0 0;
 61 |     min-height: 1em;
 62 | }
 63 | 
 64 | .reauth-email {
 65 |     display: block;
 66 |     color: #404040;
 67 |     line-height: 2;
 68 |     margin-bottom: 10px;
 69 |     font-size: 14px;
 70 |     text-align: center;
 71 |     overflow: hidden;
 72 |     text-overflow: ellipsis;
 73 |     white-space: nowrap;
 74 |     -moz-box-sizing: border-box;
 75 |     -webkit-box-sizing: border-box;
 76 |     box-sizing: border-box;
 77 | }
 78 | 
 79 | .form-signin #inputEmail,
 80 | .form-signin #inputPassword {
 81 |     direction: ltr;
 82 |     height: 44px;
 83 |     font-size: 16px;
 84 | }
 85 | 
 86 | .form-signin input[type=email],
 87 | .form-signin input[type=password],
 88 | .form-signin input[type=text],
 89 | .form-signin button {
 90 |     width: 100%;
 91 |     display: block;
 92 |     margin-bottom: 10px;
 93 |     z-index: 1;
 94 |     position: relative;
 95 |     -moz-box-sizing: border-box;
 96 |     -webkit-box-sizing: border-box;
 97 |     box-sizing: border-box;
 98 | }
 99 | 
100 | .form-signin .form-control:focus {
101 |     border-color: rgb(104, 145, 162);
102 |     outline: 0;
103 |     -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075),0 0 8px rgb(104, 145, 162);
104 |     box-shadow: inset 0 1px 1px rgba(0,0,0,.075),0 0 8px rgb(104, 145, 162);
105 | }
106 | 
107 | .btn.btn-signin {
108 |     /*background-color: #4d90fe; */
109 |     background-color: rgb(104, 145, 162);
110 |     /* background-color: linear-gradient(rgb(104, 145, 162), rgb(12, 97, 33));*/
111 |     padding: 0px;
112 |     font-weight: 700;
113 |     font-size: 14px;
114 |     height: 36px;
115 |     -moz-border-radius: 3px;
116 |     -webkit-border-radius: 3px;
117 |     border-radius: 3px;
118 |     border: none;
119 |     -o-transition: all 0.218s;
120 |     -moz-transition: all 0.218s;
121 |     -webkit-transition: all 0.218s;
122 |     transition: all 0.218s;
123 | }
124 | 
125 | .btn.btn-signin:hover,
126 | .btn.btn-signin:active,
127 | .btn.btn-signin:focus {
128 |     background-color: rgb(12, 97, 33);
129 | }
130 | 
131 | .forgot-password {
132 |     color: rgb(104, 145, 162);
133 | }
134 | 
135 | .forgot-password:hover,
136 | .forgot-password:active,
137 | .forgot-password:focus{
138 |     color: rgb(12, 97, 33);
139 | }
140 | 


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/app/src/main/resources/static/images/avatar_2x.png:
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https://raw.githubusercontent.com/jreijn/spring-session-docker-demo/a0a45a2bd6d32d119ca649c7f0e47a769cd7b44d/app/src/main/resources/static/images/avatar_2x.png


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/app/src/main/resources/templates/hello.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
 3 |       xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
 4 | <head>
 5 |     <title>Hello World!</title>
 6 |     <link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/3.2.0/css/bootstrap.min.css"
 7 |           th:href="@{/webjars/bootstrap/3.2.0/css/bootstrap.min.css}" rel="stylesheet" />
 8 | 
 9 |     <link rel="stylesheet" type="text/css" media="all"
10 |           href="/css/style.css" th:href="@{css/style.css}" />
11 | </head>
12 | <body>
13 |     <div class="jumbotron">
14 |         <div class="container">
15 |             <h1 th:inline="text">Hello [[${#httpServletRequest.remoteUser}]]!</h1>
16 |             <h2 th:inline="text">You are currently on server with name: [[${host}]]</h2>
17 |             <form th:action="@{/logout}" method="post">
18 |                 <input type="submit" value="Sign Out »" class="btn btn-primary btn-lg"/>
19 |             </form>
20 |         </div>
21 |     </div>
22 | </body>
23 | </html>
24 | 


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/app/src/main/resources/templates/home.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
 3 | <head>
 4 |     <title>Single sign-on demo</title>
 5 |     <link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/3.2.0/css/bootstrap.min.css"
 6 |           th:href="@{/webjars/bootstrap/3.2.0/css/bootstrap.min.css}" rel="stylesheet" />
 7 |     <link rel="stylesheet" type="text/css" media="all"
 8 |           href="/css/style.css" th:href="@{css/style.css}" />
 9 | </head>
10 | <body>
11 | <div class="jumbotron">
12 |     <div class="container">
13 |         <h1 th:inline="text">Welcome!</h1>
14 |         <h2 th:inline="text">You are currently on server with name: [[${host}]]</h2>
15 | 
16 |         <p>Click <a th:href="@{/hello}">here</a> to see a greeting (might require you to login first).</p>
17 |     </div>
18 | </div>
19 | </body>
20 | </html>
21 | 


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/app/src/main/resources/templates/login.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
 3 |       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 4 | <head>
 5 |     <title>Spring Security Example </title>
 6 |     <link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/3.2.0/css/bootstrap.min.css"
 7 |           th:href="@{/webjars/bootstrap/3.2.0/css/bootstrap.min.css}" rel="stylesheet" />
 8 |     <link rel="stylesheet" type="text/css" media="all"
 9 |           href="/css/style.css" th:href="@{css/style.css}" />
10 | </head>
11 | <body>
12 | <div class="container">
13 |     <div class="card card-container">
14 |         <img id="profile-img" class="profile-img-card" src="//ssl.gstatic.com/accounts/ui/avatar_2x.png" th:href="@{/images/avatar_2x.png}"/>
15 |         <p id="profile-name" class="profile-name-card"></p>
16 | 
17 |         <form class="form-signin" th:action="@{/login}" method="post">
18 |             <input type="text" name="username" class="form-control" placeholder="User name" required="required" autofocus="autofocus"/>
19 |             <input type="password" name="password" class="form-control" placeholder="Password" required="required"/>
20 |             <button class="btn btn-lg btn-primary btn-block btn-signin" type="submit">Sign in</button>
21 |         </form>
22 | 
23 |         <div th:if="${param.error}">
24 |             Invalid username and password.
25 |         </div>
26 | 
27 |         <div th:if="${param.logout}">
28 |             You have been logged out.
29 |         </div>
30 | 
31 |     </div>
32 | </div>
33 | </body>
34 | </html>
35 | 


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/docker-compose.yml:
--------------------------------------------------------------------------------
 1 | db:
 2 |   image: redis:3.0.3
 3 |   hostname: redis
 4 |   ports:
 5 |     - "6379:6379"
 6 | app1:
 7 |     build: app
 8 |     links:
 9 |       - "db:redis"
10 | app2:
11 |     build: app
12 |     links:
13 |       - "db:redis"
14 | app3:
15 |     build: app
16 |     links:
17 |       - "db:redis"
18 | haproxy:
19 |     image: tutum/haproxy:0.2
20 |     ports:
21 |       - "80:80"
22 |       - "1936:1936"
23 |     links:
24 |         - app1
25 |         - app2
26 |         - app3
27 | 


--------------------------------------------------------------------------------