Support for IPv6-only environments (#4659) #4695
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danehlim
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mye956
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Summary
This pull request enables support for IPv6-only container instances and awsvpc tasks. The main changes in this PR are -
ECS_INSTANCE_IP_COMPATIBILITYconfiguration parameter. This parameter can be set toipv4oripv6to provide Agent information about the instance's IP compatibility and override its auto detection.ecs.capability.ipv6-onlycapability when registering the instance with ECS. This capability is needed for supporting IPv6-only awsvpc network mode tasks.ecs-anywhere-install.shscript now supports IPv6-only instances.As of this PR, IPv6-only support is only available on Linux platform.
When Agent is running in IPv6-only support mode, it will perform necessary actions to ensure that all of its features work as expected using IPv6.
Individual commits in this PR are already reviewed in the PRs below.
Testing
I have thoroughly tested IPv6-only support using our functional tests.
New tests cover the changes: yes
Description for the changelog
feature: Support for IPv6-only environments
Additional Information
Does this PR include breaking model changes? If so, Have you added transformation functions?
Does this PR include the addition of new environment variables in the README?
Licensing
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.