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Revert removal of EC2HostNameResolver annotation #78

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Merged
whummer merged 1 commit into from
Oct 29, 2021
Merged

Revert removal of EC2HostNameResolver annotation #78

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23 changes: 23 additions & 0 deletions src/main/java/cloud/localstack/docker/annotation/EC2HostNameResolver.java
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Original file line number Diff line number Diff line change
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package cloud.localstack.docker.annotation;

import com.amazonaws.util.EC2MetadataUtils;

/**
* Finds the hostname of the current EC2 instance
*
* This is useful for a CI server that is itself a docker container and which mounts the docker unix socket
* from the host machine. In that case, the server cannot spawn child containers but will instead spawn sibling
* containers which cannot be addressed at "localhost". In order to address the sibling containers you need to resolve
* the hostname of the host machine, which this method will accomplish.
*
* For more information about running docker for CI and mounting the host socket please look here:
* http://jpetazzo.github.io/2015/09/03/do-not-use-docker-in-docker-for-ci/
*/
public class EC2HostNameResolver implements IHostNameResolver {

@Override
public String getHostName() {
return EC2MetadataUtils.getLocalHostName();
}

}