Ruby 2.6.5 runtime missing on Amazon Linux Standard 3.0 image
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I have a ruby project and I am trying to build via AWS codedeploy and having some issues specifying the ruby version. I am using Ruby 2.6.5 and I am using AWS Codedeploy standard image (aws/codebuild/standard:2.0) because according to the docs it supports Ruby 2.6.5. .ruby-version has 2.6.5. I also attempted a build where I put "runtime-versions: ruby: 2.6.5" in the buildspec but that threw the following error: "Phase context status code: YAML_FILE_ERROR Message: Unknown runtime version named '2.6.5' of ruby. This build image has the following versions: 2.6". This is my buildspec.
I also tried using aws/codebuild/amazonlinux2-x86_64-standard:3.0-20.03.13 image version from AL Standard 3.0 image instead of the latest but I get the same error while on github I see ruby version 2.6.5 has been added https://github.com/aws/aws-codebuild-docker-images/tree/20.03.13.
I also tried Ubuntu Standard 5.0 and same thing.
What am I missing?