io.druid.indexing.overlord.autoscaling.ec2.EC2UserData Maven / Gradle / Ivy
/*
* Licensed to Metamarkets Group Inc. (Metamarkets) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Metamarkets licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package io.druid.indexing.overlord.autoscaling.ec2;
import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
/**
* Represents any user data that may be needed to launch EC2 instances.
*/
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "impl", defaultImpl = GalaxyEC2UserData.class)
@JsonSubTypes(value = {
@JsonSubTypes.Type(name = "galaxy", value = GalaxyEC2UserData.class),
@JsonSubTypes.Type(name = "string", value = StringEC2UserData.class)
})
public interface EC2UserData
{
/**
* Return a copy of this instance with a different worker version. If no changes are needed (possibly because the
* user data does not depend on the worker version) then it is OK to return "this".
*
* @param version worker version
* @return instance with the specified version
*/
public EC2UserData withVersion(String version);
public String getUserDataBase64();
}