Hi, I'm currently working on adding support for CloudStack as a cloud provider for Kubernetes to allow it to dynamically scale the cluster size based on capacity requirements. It runs as a separate pod in its own deployment and requires an API and Secret key to communicate with CloudStack.
While that's going on, I'd like some feedback on how it can be integrated and even deployed from the CloudStack side. I have three proposals and would like your input : 1. Provide the deployment yaml file to the user, have them change the min and max cluster size to suit their requirement, provide the API keys as Kubernetes secrets and deploy it themselves. (Most flexible as the user can change several autoscaling parameters as well) 2. Deploy it via the scaleKubernetesCluster API. This will require adding additional parameters to the API such as minsize, maxsize, apikey and secretkey for the service to communicate with CloudStack. (Uses default autoscaling parameters, api keys provided by the user) 3. Deploy it via the scaleKubernetesCluster API, but also create a service account and use its API keys to communicate with CloudStack. The user will still need to provide the minsize and maxsize to the API. (Uses default autoscaling parameters, api keys generated and used by a service account, which if deleted could cause issues) The design document can be found here : https://cwiki.apache.org/confluence/display/CLOUDSTACK/Cluster+Autoscaler+for+CloudStack+Kubernetes+Service Additional info can be found here : https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/FAQ.md Look forward to hearing from you! Thanks, David david.jum...@shapeblue.com www.shapeblue.com 3 London Bridge Street, 3rd floor, News Building, London SE1 9SGUK @shapeblue
