Hi Reka, Thanks and looks good. Shall we also introduce an interfaces for spawning and terminating several instances at once?
These instances might be from different partitions. i.e. spawn 1 instance from EC2, Asia region and spawn 2 instances from EC2, Europe region. Same way for termination. Thanks. On Tue, Oct 22, 2013 at 10:48 AM, Reka Thirunavukkarasu <[email protected]>wrote: > Hi Lahiru and Devs, > > Please find the service methods to talk to jclouds as below. Also, Please > provide your suggestions to make the interface more flexible. Let me > explain, why we have to change the interface? > > With the new architecture, autoscaler can take more robust decision from > the stats, its collects from the Event Processing Engine. In the case of > scale down or scale up, it can start/terminate instances within a cloud, > within a region, within a zone, within a network and within a host. If any > of them is not specified in the Locationscope, the cloud controller will > take the decision with the default location. Also, autoscaler can terminate > the unhealthy instances by providing the instance ID. > > /** > * Calling this method will result in an instance startup, which is > belong > * to the provided Cluster ID. Also note that the instance that is > starting up > * belongs to the group whose name is derived from its Cluster ID, > replacing <i>.</i> > * by a hyphen (<i>-</i>). > * > * @param clusterId > * cluster ID of the instance to be started up. > * @param locationScope > * It contains the region, zone, network and host of a IaaS > where > * an instance need to be started. > * @return public IP which is associated with the newly started > instance. > */ > public String startInstance(String clusterId, LocationScope > locationScope); > > /** > * Calling this method will result in termination of an instance which > is belong > * to the provided cluster Id and the location scope.. > * > * @param clusterId > * cluster ID of the instance to be terminated. > * @param locationScope > * It contains the region, zone, network and host of a IaaS > where > * an instance need to be terminated.. > * @return whether an instance terminated successfully or not. > */ > public boolean terminateInstance(String clusterId, LocationScope > locationScope); > > /** > * Calling this method will result in termination of an instance which > is belong > * to the provided instance Id. > * > * @param instanceId > * instance Id of the instance to be terminated. > * @return whether an instance terminated successfully or not. > */ > public boolean terminateInstance(String instanceId); > > /** > * Calling this method will result in termination of all instances > belong > * to the provided cluster ID. > * > * @param clusterId > * cluster ID of the instance to be terminated. > * @return whether an instance terminated successfully or not. > */ > public boolean terminateAllInstances(String clusterId); > > > /** > * Calling this method will result in termination of the lastly > spawned instance which is > * belong to the provided clusterID. > * > * @param clusterId > * service domain of the instance to be terminated. > * @return whether the termination is successful or not. > */ > public boolean terminateLastlySpawnedInstance(String clusterId); > > > The LocationScope can be found as below: > > public class LocationScope { > private String zone; > private String network; > private String host; > private String region; > private String cloud; > ............ > } > > > Thanks, > Reka > > > On Tue, Oct 22, 2013 at 8:09 AM, Lahiru Sandaruwan <[email protected]>wrote: > >> Hi Reka, >> >> What will be the $subject? Just want to get an idea what kind of service >> methods they would be. >> >> Thanks. >> >> -- >> -- >> Lahiru Sandaruwan >> Software Engineer, >> Platform Technologies, >> WSO2 Inc., http://wso2.com >> lean.enterprise.middleware >> >> email: [email protected] cell: (+94) 773 325 954 >> blog: http://lahiruwrites.blogspot.com/ >> twitter: http://twitter.com/lahirus >> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146 >> >> > > > -- > Reka Thirunavukkarasu > Software Engineer, > WSO2, Inc.:http://wso2.com, > Mobile: +94776442007 > > > -- -- Lahiru Sandaruwan Software Engineer, Platform Technologies, WSO2 Inc., http://wso2.com lean.enterprise.middleware email: [email protected] cell: (+94) 773 325 954 blog: http://lahiruwrites.blogspot.com/ twitter: http://twitter.com/lahirus linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
