As mentioned before, an assembly represents your application in its entirety. It has all the information needed to spawn, scale, and monitor your application. This includes the compute instance needed, OS and other software on top of it, the application software, FQDN, security groups, SSH keys, and any other software that needs to be installed as part of the deployment. Click on the assembly link on the left-hand side menu and you will see your current assemblies as follows:
The first column under the assembly name tells you how many platforms or software packages are part of the assembly. In the preceding example, Java has one platform as part of it, which is JDK 1.7. The second column tells you which environments it was transitioned to. The preceding example tells you that Java was transitioned to two environments. The third column is a handy link to operations, from where you view notifications and perform various operations.
Now, let's create a simple assembly...