Cluster API CLI

[errordeveloper]

We would like to implement Cluster API. One of the modes in which one can use Cluster API would be eksctl apply -f cluster.yaml, this would let users create and update clusters using a declarative format of a Cluster API object.
Another mode of using Cluster API would be via a controller running in a management cluster (#20).

[errordeveloper]

What needs to be done here?

This issue was set out for 0.3.0 and not 0.2.0, and that is still the plan, however that doesn't stop us from laying the ground work and introducing experimental functionality (hence #381 is about go into 0.1.17).

• eksctl create cluster -f <configFile> – Create cluster via config file #381 (landed in 0.1.17)
• eksctl create nodegroup -f <configFile> – Adding config file option for create nodegroup #553 (landed in 0.1.23)
• eksctl create -f <configFile>
• eksctl get cluster/nodegroup -o yaml|json (we have somewhat ad-hoc format for these, should use the API instead)
• eksctl get/delete cluster -f <configFile> (delete make it easy to delete cluster with a config file  #504)
• eksctl get/delete nodegroup -f <configFile>
• eksctl get/delete -f <configFile>
• eksctl utils upgrade-{cluster,nodegroup} -f <configFile> (in case we may need it as a temporary solution for upgrades, before we can implement fully idempotent eksctl apply)
• eksctl apply -f <configFile>

We will evolve the API itself in parallel, the above list is just to illustrate the functionality at the high-level.

[mumoshu]

@errordeveloper It seems like we have eksctl upgrade nodegroup since #1566, only for upgrading k8s versions.

[michaelbeaumont]

We'd love to hear users requirements/interest in this issue. Keep in mind, there's already the AWS provider. We also have an issue for declarative apply #462 #2774
This issue would cover expressing an EKS configuration as a collection of CAPI resources

[michaelbeaumont]

Closing for now