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• create application cluster: provision cluster resources, and brings the cluster in to operational readiness state. Resources provisioning shall be the responsibility of the caller, that can act according to the cluster manager used. All the cluster VM's shall be launched in to a dedicated network for the cluster. API end point of cluster manager can be exposed by the caller through creating a port forwarding rule on source nat ip of the network dedicated for the cluster.
• delete application cluster: destroy all the resources provisioned for the application cluster. Post delete, a application cluster can not be performed any operations on it.
• start application cluster: Starting a cluster will start the VMs and possibly start the network.
• stop application cluster: Stopping a cluster will shutdown all the resources consumed by the application cluster. User can start the cluster at a later point with Start operation.
• recovering a cluster: Due to possible faults (like VMs that got stopped due to failures, or malfunctioning cluster manager etc) application cluster can end up in Alert state. Recover is used to revive application cluster to a sane running state. In the initial version this is just trying to have the correct number of VMs per role. In later versions callbacks for (re-)provisioning may be added.
• cluster resizing (scale-in/out): increase or decrease the size of the cluster on a per role basis. The functionality here is adhering to the same limitations as stated above under recovering.
• list application cluster: list all the application clusters

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