org.hobbit.controller.docker

Interface ClusterManager

All Known Implementing Classes:

ClusterManagerImpl

public interface ClusterManager

This interface is implemented by classes that can be used to manage and collect info about Docker Cluster.

Author:

Ivan Ermilov (iermilov@informatik.uni-leipzig.de)

Method Summary

Modifier and Type	Method and Description
com.spotify.docker.client.messages.Info	getClusterInfo() Get cluster info
Integer	getExpectedNumberOfNodes() Get expected number of nodes in the cluster Set externally by SWARM_NODE_NUMBER env variable
Integer	getNumberOfNodes() Get number of nodes in the cluster
Integer	getTaskHistoryLimit() Get task history limit for the swarm cluster
boolean	isClusterHealthy() Get the health status of the cluster
void	setTaskHistoryLimit(Integer taskHistoryLimit) Set task history limit for the swarm cluster For production history limit should be set to 0 Then the cluster will not keep containers after the services are removed

Method Detail

getClusterInfo

com.spotify.docker.client.messages.Info getClusterInfo()
                                                throws com.spotify.docker.client.exceptions.DockerException,
                                                       InterruptedException

Get cluster info

Returns:

com.spotify.docker.client.messages.Info

Throws:

com.spotify.docker.client.exceptions.DockerException

InterruptedException

getNumberOfNodes

Integer getNumberOfNodes()
                  throws com.spotify.docker.client.exceptions.DockerException,
                         InterruptedException

Get number of nodes in the cluster

Returns:

number of nodes

Throws:

com.spotify.docker.client.exceptions.DockerException

InterruptedException

isClusterHealthy

boolean isClusterHealthy()
                  throws com.spotify.docker.client.exceptions.DockerException,
                         InterruptedException

Get the health status of the cluster

Returns:

boolean (is cluster healthy?)

Throws:

com.spotify.docker.client.exceptions.DockerException

InterruptedException

getExpectedNumberOfNodes

Integer getExpectedNumberOfNodes()

Get expected number of nodes in the cluster Set externally by SWARM_NODE_NUMBER env variable

Returns:

expected number of nodes

setTaskHistoryLimit

void setTaskHistoryLimit(Integer taskHistoryLimit)
                  throws com.spotify.docker.client.exceptions.DockerException,
                         InterruptedException

Set task history limit for the swarm cluster For production history limit should be set to 0 Then the cluster will not keep containers after the services are removed

Throws:

com.spotify.docker.client.exceptions.DockerException

InterruptedException

getTaskHistoryLimit

Integer getTaskHistoryLimit()
                     throws com.spotify.docker.client.exceptions.DockerException,
                            InterruptedException

Get task history limit for the swarm cluster

Returns:

Integer (task history limit)

Throws:

com.spotify.docker.client.exceptions.DockerException

InterruptedException