Merge branch 'master' of https://github.com/ColeChronowski/GCP-RNG

Author: wyattscarpenter

Java/AppEngine/src/main/java/myapp/DemoServlet.java

@@ -7,6 +7,7 @@
 import javax.servlet.http.HttpServletResponse;
 
 public class DemoServlet extends HttpServlet {
+  private static final long serialVersionUID = -5314714338427418156L;
   int MAX_NUMBER = 1000000;
 
   @Override

Java/AppEngine/target/appengine-try-java/WEB-INF/classes/myapp/DemoServlet.class

@@ -1,16 +1,28 @@
 # Java Compute Engine
 
+Begin by going to cloud.google.com and setting up a project. To set up the instance, begin by clicking compute engine and then "create instance".
+
+When setting up the instance, you will choose which region and zone your instance will run in.
+Here, we chose northamerica-northeast1 region and zone a.
+
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(19).png "screenshot")
 
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(20).png "screenshot")
 
+Next, the machine type should be chosen. For our instance, we wanted to use the least expensive type, f1-micro.
+
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(21).png "screenshot")
 
+Next, the boot disk needs to be configured to run Ubuntu 18.04 LTS.
+
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(22).png "screenshot")
 
+Check both boxes to allow HTTP and HTTPS traffic.
+
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(23).png "screenshot")
 
-![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(24).png "screenshot")
+The next step is to change the firewall rules of the instance. Here, the system needs to allow tcp:80,8080.
+To do this, click on the name of the firewall rule and edit the protocol to allow tcp:80,8080.
 
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(29).png "screenshot")
 
@@ -22,14 +34,31 @@
 
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(33).png "screenshot")
 
+Next, open the instance in another window. Here, a few commands need to be run to ensure your instance is up-to-date.
+
+![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(24).png "screenshot")
+
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(25).png "screenshot")
 
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(26).png "screenshot")
 
+Next, clone the github repository that contains the random number generated code for Java Compute Engine.
+
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(27).png "screenshot")
 
+Change the directory of your instance to the one that contains the Java Compute Engine code.
+
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(28).png "screenshot")
 
+Run the code by typing 
+    java -jar start.jar
+
+![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(36).png "screenshot")
+
+In your browser, copy the external IP address of your instance and go to http://[external IP]:8080/rng.
+
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(35).png "screenshot")
 
+This address shows the output of the random number generator.
+
 ![](https://github.com/ColeChronowski/GCP-RNG/raw/master/Setup/images/Screenshot%20(34).png "screenshot")