Recall that when we designed our first application, we specified the CPU, RAM, and distribution for our compute node. However, we did not input an OpenStack flavor and image. This is because the CTD designs the appication independent from any cloud providers.
After we choose a target cloud provider to deploy our applications (e.g., on Open Telekom Cloud), the designer shows all available flavors and images that the given cloud provider offers. For example:
- If we input
1GB RAM, and the operating system
ubuntufor the compute node, the designer shows two available options of ubuntu: version
18.04with the same number of CPU and RAM (see Figure below).
- If we input 3GB RAM, the designer will show another option with 4GB RAM (because Open Telekom Cloud does not offer a flavor with 3GB RAM).