Design cf-remote config

[victormlg]

No description provided.

[olehermanse]

@victormlg Continuing on your example, here is my updated suggestion;

spawn-config:
  - ubuntu-vm:
      provider: aws
      aws:
        image: ubuntu-24
  - local-ubuntu-vm:
      provider: vagrant
      vagrant:
        image: ubuntu/focal64
        memory: 1024
        cpus: 2

groups:
  - cloud-hub:
      role: hub
      spawn-config: ubuntu-vm
      count: 1
      cfengine: 3.24.3
      scripts: [ ./provision.sh ]
  - cloud-clients:
      role: client
      spawn-config: ubuntu-vm
      count: 2
      cfengine: 3.24.3
      bootstrap: cloud-hub
  - local-hub:
      role: hub
      spawn-config: local-ubuntu-vm
      count: 1
      cfengine: 3.24.3
      bootstrap: cloud-hub
  - static-hosts:
      role: client
      cfengine: 3.24.3
      hosts: [ ubuntu@8.8.8.8, ubuntu@1.1.1.1 ]
      bootstrap: cloud-hub

Another alternative instead of spawn-config could be template.

[victormlg]

@victormlg Continuing on your example, here is my updated suggestion;

spawn-config:
  - ubuntu-vm:
      provider: aws
      aws:
        image: ubuntu-24
  - local-ubuntu-vm:
      provider: vagrant
      vagrant:
        image: ubuntu/focal64
        memory: 1024
        cpus: 2

groups:
  - cloud-hub:
      role: hub
      spawn-config: ubuntu-vm
      count: 1
      cfengine: 3.24.3
      scripts: [ ./provision.sh ]
  - cloud-clients:
      role: client
      spawn-config: ubuntu-vm
      count: 2
      cfengine: 3.24.3
      bootstrap: cloud-hub
  - local-hub:
      role: hub
      spawn-config: local-ubuntu-vm
      count: 1
      cfengine: 3.24.3
      bootstrap: cloud-hub
  - static-hosts:
      role: client
      cfengine: 3.24.3
      hosts: [ ubuntu@8.8.8.8, ubuntu@1.1.1.1 ]
      bootstrap: cloud-hub

Another alternative instead of spawn-config could be template.

I agree that this looks cleaner. However doesn't it sacrifice some "power" and flexibility if we want to add more features in the future?

Why precising the provider two times if you mentioned that there should only be one provider option per spawn-config?

      provider: aws
      aws:
        image: ubuntu-24

I think having fully reproducible configs would be useful, especially in a dev environment. For example, if in ./provision.sh script you use some package with a version and your share your cf-remote config, it's not sure that the installed softwares would have the same version. Scripts and static hosts can break reproducibility. We could track the scripts with git.

Lastly, I think that instead of being fixed, the config should be modular. I believe this:

spawn-config:
  - ubuntu-vm:
    provider: aws
    aws:
      image: ubuntu-24
    
groups:
  - cloud-hub
      role: hub
      spawn-config: ubuntu-vm
 

should be synonymous to:

groups:
  - cloud-hub
      role: hub
      spawn-config:
        provider: aws
        aws:
          image: ubuntu-24

Basically, you could create "aliases" to repeat some configuration in a modular way. Not only for spawn-config.