How to specify an OpenStack flavor or an image for a compute

In the previous step, when we designed our HelloWorld application, we specified CPU, RAM, and the operating system for the compute component. However, we did not specify an OpenStack flavor and image. After we choose Open Telekom Cloud as the target cloud provider, the designer shows all available flavors and images that Open Telekom Cloud offers. For examples:

  • If we input 1CPU, 1GB RAM, and the operating system ubuntu for the compute, the designer shows two available options of ubuntu: version 16.04 and version 18.04 with the same number of CPU and RAM (see Figure below).
  • If we input 3GB RAM, the designer will show another flavor with 4GB RAM (because Open Telekom Cloud does not offer a flavor with 3GB RAM).

Fig. The matching phase proposes a matched flavor and image of OTC