org.apache.flink.runtime.clusterframework

Class ContainerSpecification

java.lang.Object

org.apache.flink.runtime.clusterframework.ContainerSpecification

All Implemented Interfaces:

Serializable

public class ContainerSpecification
extends Object
implements Serializable

Encapsulates a container specification, including artifacts, environment variables, system properties, and Flink configuration settings. The specification is mutable. Note that the Flink configuration settings are considered dynamic overrides of whatever static configuration file is present in the container. For example, a container might be based on a Docker image with a normal Flink installation with customized settings, which these settings would (partially) override. Artifacts are copied into a sandbox directory within the container, which any Flink process launched in the container is assumed to use as a working directory. This assumption allows for relative paths to be used in certain environment variables.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ContainerSpecification.Artifact An artifact to be copied into the container.

Constructor Summary

Constructors

Constructor and Description
ContainerSpecification()

Method Summary

Modifier and Type	Method and Description
protected Object	clone()
static String	formatSystemProperties(Configuration jvmArgs) Format the system properties as a shell-compatible command-line argument.
List<ContainerSpecification.Artifact>	getArtifacts() Get the container artifacts.
Configuration	getDynamicConfiguration() Get the dynamic configuration.
Map<String,String>	getEnvironmentVariables() Get the environment variables.
Configuration	getSystemProperties() Get the system properties.
String	toString()

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ContainerSpecification

public ContainerSpecification()

Method Detail

getArtifacts

public List<ContainerSpecification.Artifact> getArtifacts()

Get the container artifacts.

getEnvironmentVariables

public Map<String,String> getEnvironmentVariables()

Get the environment variables.

getDynamicConfiguration

public Configuration getDynamicConfiguration()

Get the dynamic configuration.

getSystemProperties

public Configuration getSystemProperties()

Get the system properties.

clone

protected Object clone()
                throws CloneNotSupportedException

Overrides:

clone in class Object

Throws:

CloneNotSupportedException

toString

public String toString()

Overrides:

toString in class Object

formatSystemProperties

public static String formatSystemProperties(Configuration jvmArgs)

Format the system properties as a shell-compatible command-line argument.